OSP-P20L Alarm and Error List (Alarm A)-1

Alarm & Error List (Alarm A)

1700 Emergency stop
Emergency stop button was pressed.
[Code]1
[Probable Fault Cause]
The emergency stop button was pressed.
[Measures to Take]
Pull out the emergency stop button, then press the NC operation power ON pushbutton.

1701 EC overload
EC overload tripped.
(I/O check No. 24 input bit A (iOLA/) = 0)
Spindle lubrication motor, hydraulic pump motor, coolant motor, slideway lubrication motor, etc., overheated or an error occurred.
.
[Code]
1->EC overload tripped.
2->Hydraulic pump motor overload tripped.
3->Coolant control motor overload tripped.
4->SP oil pump motor overload tripped.
5->Lubrication oil motor overload tripped.
6->Spindle cooling motor overload tripped.
7->Spindle cooling fan overload tripped.
8->The 2nd spindle cooling motor overload tripped.
9->The 2nd spindle cooling fan overload tripped.
10->The overload of the high-pressure coolant control motor
is tripped.
11->The overload of the second coolant control motor is
tripped.
[Measures to Take]
1) Reset the overload relay.
2) Check whether the motor is normal.

1702 BDU overload
Drive unit overload.
[Code]1
[Probable Fault Cause]
1) Axis drive unit overload.
[Measures to Take]

1703 EC circuit breaker
EC circuit breaker tripped. (I/O check No. 24 Bit 9 (iCBA/) = 0)
Alarm occurs when a circuit breaker in the heavy-current (EC) control circuit trips. Check the tripped circuit breaker to
locate the cause of the alarm.
[Code]
None->EC circuit breaker tripped.
1->EC circuit breaker tripped.
(The 1st circuit breaker of the EC)
2->The 2nd circuit breaker of the EC is tripped.
3->The 3rd circuit breaker of the EC is tripped.
4->The 4th circuit breaker of the EC is tripped.
5->The 5th circuit breaker of the EC is tripped.
6->The 6th circuit breaker of the EC is tripped.
7->The 7th circuit breaker of the EC is tripped.
8->The 8th circuit breaker of the EC is tripped.
9->The 9th circuit breaker of the EC is tripped.
[Probable Fault Cause]
Short circuit in the EC power supply circuit.
[Measures to Take]
Turn ON the EC circuit breaker.

1704 Transformer overheat
Transformer overheated. (I/O check No. 24 Bit B (iOHA/) = 0)
Alarm occurs when the transformer overheats.
[Code]
1->Transformer overheated.

1705 Hydraulic pressure
Hydraulic oil low pressure signal has continued for 2 seconds or longer.
[Code]
1->Hydraulic oil low pressure signal has continued for 2 seconds or longer.
2->Hydraulic pump motor is not running.
[Probable Fault Cause]
1) Insufficient hydraulic oil.
2) Faulty hydraulic motor.
3) Clogged filter.

1706 External
A problem occurred in external equipment.
[Code]
1->A problem occurred in external equipment.
[Probable Fault Cause]
External equipment
[Measures to Take]
First clear the alarm state of the external equipment, then reset the NC.

1707 Stroke end limit over
An axis hit or moved past the stroke end limit switch.
[Code]
None->During execution of an X-axis or Z-axis command, the turret hit the stroke end limit switch.
1->For Y-axis specifications, the X-axis hit the stroke end limit switch due to Y-axis movement.
In Za-axis superposition control of the new LT control specifications, a negative-direction movement command was further issued after passing the negative-direction stroke end limit switch.
2->During execution of the M273 initialization command (initial position command within stroke end limit), the axis hit the
stroke end limit switch.
In Za-axis superposition control of the new LT control specifications, a positive-direction movement command was further issued after passing the positive-direction stroke end limit switch.
[Probable Fault Cause]
1->Operation error, programming error.
2->Variable soft-limit setting error (the soft-limit was set outside the stroke end limit).
3->Check the stroke end limit switch. (Is the limit switch turned ON due to chips, etc.?)
[Measures to Take]
1) Turn ON the stroke end limit release switch inside the control cabinet, perform manual reset,
and move the turret away from the stroke end using the pulse handle.
2) After turning OFF the stroke end limit release switch, if the stroke limit position of the turret is shifted,
re-set the variable soft-limit.
3) For new LT control specifications, move the axis in the direction away from the stroke end limit.

1708 Stroke end limit release
When the stroke end limit release switch is turned ON, the mode is not manual operation mode.
Or when the stroke end limit release switch is turned ON, the mode is not pulse handle operation mode.
[Code]
1->Operation mode is not manual mode.
[Probable Fault Cause]Operation error
[Measures to Take]
1) After selecting manual mode first, turn ON the stroke end limit release switch, then execute system reset
using the reset button.
2) Turn OFF the stroke end limit release switch.

1709 XA-axis overload
The ON time of the load detection log relay for the A-turret X-axis exceeded the set overload time.
[Probable Fault Cause]
1) Programming error: Feedrate is too high; depth of cut is too large.
2) Log relay setting error: Set value is too small.
3) Check time setting error: Set value is too small.

1710 XB-axis overload
The ON time of the load detection log relay for the B-turret X-axis exceeded the set overload time.
[Probable Fault Cause]
1) Programming error: Feedrate is too high; depth of cut is too large.
2) Log relay setting error: Set value is too small.
3) Check time setting error: Set value is too small.

1711 ZA-axis overload
The ON time of the load detection log relay for the A-turret Z-axis exceeded the set overload time.
[Probable Fault Cause]
1) Programming error: Feedrate is too high; depth of cut is too large.
2) Log relay setting error: Set value is too small.
3) Check time setting error: Set value is too small.

1712 ZB-axis overload
The ON time of the load detection log relay for the B-turret Z-axis exceeded the set overload time.
[Probable Fault Cause]
1) Programming error: Feedrate is too high; depth of cut is too large.
2) Log relay setting error: Set value is too small.
3) Check time setting error: Set value is too small.

1713 Spindle rotation interlock
In a mode other than manual mode, with the spindle safety interlock ON, a spindle forward, reverse,
jog, or indexing command was issued.
[Target]System
[Code]
2->In spindle indexing locator pin mode, the locator pin retraction confirmation signal turned OFF during spindle rotation.
3->Spindle rotation command (including jog,
indexing, and C-axis rotation) was issued while retraction confirmation of the gripping confirmation device was OFF.
9->Spindle rotation command was issued while the tailstock chuck was clamped. Or the tailstock chuck
was not unclamped during spindle rotation.
10->Spindle rotation command was issued while the spindle-side chuck was not clamped, or the spindle-side chuck
was not clamped during spindle rotation.
11->Spindle rotation command was issued while the tailstock-side chuck was not clamped, or the tailstock-side chuck
was not clamped during spindle rotation.
12->Spindle rotation command was issued while the tailstock was not advanced, or the tailstock
was not advanced during spindle rotation.
13->Spindle rotation command was issued while the tailstock was not clamped, or the tailstock
was not clamped during spindle rotation.
14->Spindle rotation command was issued while the tailstock joint was not disengaged, or the tailstock joint
was not disengaged during spindle rotation.
15->Spindle rotation command was issued while AJC was not clamped.
16->During spindle rotation, the AJC clamp confirmation signal turned OFF.
17->Spindle rotation command was issued while the work rest was not at the retracted position (lowered), and the tailstock quill was not at the retracted end.
18->During spindle rotation, the work rest is not at the retracted position (lowered),
and the tailstock quill is not at the retracted end.
19->Spindle rotation command was issued while the centering device was not retracted.
20->Centering device advance/retract command was issued during spindle rotation.
21->Centering device is not at the retracted position during spindle rotation.
22->During spindle rotation, the C-axis brake pressure check switch signal remained OFF for more than 1 second continuously.
During spindle rotation, the C-axis brake pressure exceeded the set pressure for 1 second or longer.
23->Spindle rotation command was issued when the chuck wrench was not in the stored state.
24->During spindle rotation, the chuck wrench is not in the stored state.
25->During spindle rotation, spindle low-acceleration mode ON/OFF command was issued.
26->Spindle rotation command was issued by manual operation when the C-axis brake pressure check switch input was not ON.
Or, 10 seconds elapsed after issuing a spindle rotation command by M code,
and the pressure check switch input was still not ON.
27->Spindle rotation command was issued while the spindle was clamped.
28->Spindle rotation command was issued while the C-axis was clamped or the C-axis brake was ON.
29->Spindle rotation command was issued while the manual spindle rotation interlock switch was ON.
30->On a vertical lathe, spindle rotation command was issued when entering the transfer area.
Or, entered the transfer area during spindle rotation.
31->Spindle brake ON/OFF command (M578/M579) was issued while the spindle was not stopped.
32->M03, M04, or M19 command was issued while the spindle brake output was ON.
33->Spindle rotation command was issued while the work rest was not at the inserted position.
34->Spindle rotation command was issued while the centering arbor was at the retracted end and not unclamped.
During spindle rotation, the retracted end confirmation of the centering arbor turned ON.
35->During spindle rotation, the work rest is not at the retracted position (lowered).
36->Spindle rotation command was issued when a workpiece was present at the raised end of the work rest and the tailstock was advanced.
37->Spindle rotation command was issued while the workpiece ejector was not retracted. Or, spindle rotation command
was issued while workpiece ejector operation was in progress.
38->Spindle rotation command was issued during execution of the tailstock indexing pin engage/disengage command.
39->Spindle rotation command was issued while the tailstock indexing pin was not disengaged.
40->C-axis clamp command was issued while the spindle was not stopped.
41->Spindle rotation command was issued after an air blow command while the C-axis was clamped or the C-axis brake was ON.
42->Spindle rotation command was issued when the chuck was clamped, the work rest was not at the retracted position (lowered), and the tailstock was advanced.
43->On a vertical lathe, spindle rotation command was issued while the shutter door was not closed.
Or, the shutter door was not closed during spindle rotation.
44->Spindle rotation command was issued while the rear chuck cover was not closed. Or, the rear chuck cover
opened during spindle rotation.
45->A spindle rotation command was issued when the workpiece rest was not at the feed position (raised) and the tailstock quill was not at the retracted end.
46->During spindle rotation, the workpiece rest was not at the feed position (raised) or the tailstock quill was not at the retracted end.
47->A spindle rotation command was issued when the front air chuck low pressure signal was OFF.
48->A spindle rotation command was issued when the front air chuck clamp confirmation signal was OFF.
49->A spindle rotation command was issued when the rear air chuck low pressure signal was OFF.
50->A spindle rotation command was issued when the rear air chuck clamp confirmation signal was OFF.
51->A spindle oscillation command was issued during spindle rotation, or a spindle rotation command was issued during spindle oscillation.
52->A spindle rotation command was issued when the steady rest was not clamped, or the steady rest was unclamped during spindle rotation.
53->A spindle rotation command was issued when coolant pressure was not built up, or coolant pressure dropped during spindle rotation.
54->A spindle rotation command was issued when the driving dog connection confirmation signal on the main side was OFF.
55->During main spindle rotation, the driving dog connection confirmation signal went OFF.
56->A main spindle rotation command was issued when the W-axis was positioned at the designated position, or the W-axis was positioned at the designated position during main spindle rotation.
57->A sub-spindle rotation command was issued when the W-axis was not positioned at the designated position.
58->A sub-spindle rotation command was issued when the sub-spindle driving dog connection confirmation signal was OFF.
59->During sub-spindle rotation, the W-axis was not at the designated position.
60->A sub-spindle rotation command was issued when the sub-spindle driving dog connection confirmation signal was ON.
61->During sub-spindle rotation, the sub-spindle driving dog connection confirmation signal went OFF.
62->A spindle rotation command was issued when not at the ACC home position.
63->A spindle rotation command was issued when the connector on the machining station side was not connected.
64->A spindle rotation command was issued when the pallet on the machining station side was not clamped.
65->A spindle rotation command was issued when neither the tailstock chuck nor the spindle chuck was unclamped, or neither the tailstock chuck nor the spindle chuck was in the unclamped state during spindle rotation.
66->A spindle rotation command was issued when the spindle front cover was not closed.
67->During spindle rotation, the spindle front cover was not closed.
68->A spindle rotation command was issued when the magnetic chuck was not magnetized, or the magnetic chuck was not in the magnetized state during spindle rotation.
69->A spindle rotation command was issued although the chuck clamp/unclamp command condition and input signal condition were mismatched.
70->During main spindle rotation, the brake was not in the advance/retract state.
71->A spindle inching command was issued during spindle
rotation.
72->A spindle rotation command was issued when the Spindle
brake Pressure confirmation signal was OFF,or Spindle
brake Pressure confirmation signal was OFF condition
continued more than 2 seconds at the time of during
spindle rotation.
73->A spindle rotation command was issued with the work pusher
not at the retracted position, or the work pusher moved
from retracted position during spindle rotation.
74->When pressure detection SW input of C axis brake was not
ON,it did a main spindle rotation command.
75->The spindle rotation command is executed, when front air
chuck clamp confirmation signal is OFF.
Or, A front air chuck clamp confirmation signal is OFF
during spindle rotation.
76->The spindle rotation command is executed, when rear air
chuck clamp confirmation signal is OFF.
Or, A rear air chuck clamp confirmation signal is OFF
during spindle rotation.
77->A spindle rotation command was issued when the steady rest
was not clamped. Or steady rest was not unclamped during
spindle rotation.
78->A spindle rotation command was issued when the APC pallet
was not clamped. Or APC pallet was not clamped during
spindle rotation.
79->A spindle rotation command was issued when the APC fork
was not in down position. Or APC fork was not in down posit
ion
during spindle rotation.
[Probable Fault Cause]
1) Program error
Program example:
1) An M03, M04, or M19 command was issued while the spindle safety interlock was ON.
Operation example:
1) The spindle jog button was pressed in a mode other than manual mode while the spindle safety interlock was ON.
[Measures to Take]
1) Close the door.
2) For codes 11, 12, or 13, the alarm can be canceled by parameter setting (standard chuck-work/shaft-work switching parameter).

1714 S/M command not synchronized
During simultaneous operation of two turrets, the S/M commands or constant cutting speed commands for the A-side and B-side do not match.
[Object] SYSTEM
[Character-string] Coordinate system G140, G141, G142
[Code]
1->Constant cutting speed commands do not match (G96 and G97).
2->Constant cutting speed turret commands do not match (G110 and G111).
3->S commands do not match.
4->Spindle rotation commands do not match (M03, M04, and M05).
5->Spindle gear range commands do not match (M40 to M44).
6->M00 and M01 do not match.
7->M19 commands do not match.
8->M110 and M109 do not match.
9->M271 and M272 commands do not match.
10->M371 and M372 commands do not match.
11->M142 and M143 commands do not match.
[Probable Fault Cause]
Mismatch of S/M code commands in the simultaneous cutting program.
Program example:
Turret A
G13
N100 G00 X500 Z500
N101 M41 M03 S100 P10
^^^ ^^^^
Turret B
G14
N200 G00 X500 Z500
N201 M42 M03 S500 P10
^^^ ^^^^
[Measures to Take]
1) Correct the program.
Example: In the above program, it should be N201 M41 M03 S100 P10.
Make sure that the commands for the A-side and B-side are identical.
[Related Specifications]
2-turret specification

1715 Spindle overspeed
The spindle motor speed exceeded the commanded speed.
[Object] SYSTEM
[Code] Spindle speed converted from spindle pulses [1/min]
[Probable Fault Cause]
1) Pulse generator (PG)
2) Spindle motor
3) TFP board
4) Maximum speed command specified by G50 (when the commanded speed exceeds the maximum speed specified by G50, the maximum speed specified by G50 is automatically selected as the spindle speed).
5) Gear selection (motor low-speed/high-speed winding switching) M40-M44

1716 M03/M04 changeover
An M04 spindle reverse rotation command was executed during spindle forward rotation, or an M03 spindle forward rotation command was executed during spindle reverse rotation.
[Object] SYSTEM
[Code]
1->An M04 spindle reverse rotation command was executed during spindle forward rotation, or an M03 spindle forward rotation command was executed during spindle reverse rotation.
[Probable Fault Cause]
Program error
Program example:
:
M03
:
M04
(Direct changeover from M03 to M04)
[Measures to Take]
Before switching the spindle from forward rotation (M03) to reverse rotation (M04), add an M05 command to stop the spindle rotation first.
When switching from M04 to M03, command in the order of M04->M05->M03 in the same manner.

1717 Spindle low/high speed winding changeover command
An M40, M43, or M44 command was issued on a VAC winding changeover motor specification machine.
[Object] SYSTEM
[Code] Specified M code in hexadecimal
[Probable Fault Cause]
1) Part program
Program example:
:
M43 M03 S1000
:
[Measures to Take]
1) Use the correct M code; in the program example, change M43 to M42.
:
M42 M03 S1000
:
[Related Specifications]
VAC winding changeover motor

1718 Tow-along tailstock connection
A connection command was issued in the spindle mode.

1719 Gear change mismatch
During spindle rotation, the gear range command does not match the gear limit switch position.
[Code]
1->During spindle rotation, the gear range command does not match the gear limit switch position.
[Probable Fault Cause]
Incorrect limit switch setting

1720 Gear change command
A gear range command (M40-M44) (M242-M241) not provided on this machine was executed. Or, an M31->M40-M44->M31 changeover was executed during spindle rotation. (M31 = ultra-low speed gear changeover, special specification)
[Object] SYSTEM
[Code] Gear change command
[Probable Fault Cause]
Operation error
Operation example:
On a 2-gear machine, an M43 or M44 command was executed.

1721 Neutral gear
A spindle rotation command (M03, M04) was executed while the spindle was in neutral gear.
[Object] System
[Code]
1->A spindle rotation command (M03, M04) was executed while the spindle was in neutral gear.
[Probable Fault Cause]
Operation error
[Measures to Take]
Designate a spindle gear range command other than neutral gear (M40), then execute the spindle rotation command.

1722 Spindle orientation neutral gear
An orientation command (M19) was executed while the spindle was in neutral gear position.
[Probable Fault Cause]
1) Program error
2) Operation error
Program Example:
1) No gear range command before M19, or a neutral gear command was designated.
Operation Example:
1) An M19 command was executed while in neutral gear in MDI mode.

1723 Spindle interference distance
1) With the new LT control, a ZA-axis or ZB-axis motion command was executed such that the distance between the ZA-axis and ZB-axis
is smaller than the preset spindle allowable interference distance value.
2) With the new LT control, when neither the XA-axis nor the XB-axis is at the positive variable limit, a ZB-axis motion
command was executed such that the ZB-axis position is smaller than the preset ZB-axis workpiece transfer position value.
3) In the spindlehead interlock specification, when the Z-axis is not at the positive variable limit, a Z-axis motion command was executed
such that the Z-axis position is smaller than the preset workpiece loading/unloading stroke position value.
[Code]
1->Case 1) above
2->Case 2) above
3->Case 3) above
[Probable Fault Cause]
1) Incorrect parameter setting.
2) Operation/program error.

1724 VAC spindle synchronization conditions
When spindle synchronization control command (M151/M150) was executed, the following conditions were not met.
1) Spindle rotation command for A-spindle is not active.
2) S command for A-spindle is not active.
When spindle synchronization control command (M151) was executed, the following conditions were not met.
3) A-spindle chuck is unclamped.
4) Spindle rotation command for B-spindle is not active.
5) S command for B-spindle is not active.
6) B-spindle fixed speed input signal is ON.
7) A-spindle is not in neutral.
8) B-spindle is not in neutral.
9) Neither A-spindle nor B-spindle is in C-axis connection.
10) B-spindle is not selected.
11) A common speed range capable of synchronization is available.
12) When B-spindle is rotating, B-spindle speed must be lower than A-spindle speed.
When spindle synchronization control OFF was commanded, the following conditions were not met.
13) B-spindle chuck is unclamped.
14) Neither spindle is in super-low speed mode.
15) Neither spindle is in low-speed acceleration mode.
16) Chucks on both spindles are unclamped.
17) Synchronized rotation command was executed when the 2nd spindlehead was not at the lowered position.
18) APA is valid for both A-spindle and B-spindle.
19) When the dual clamp interlock release command (M883) was executed,
the spindle synchronized rotation phase adjustment cancel
command (M210) must be executed.
[Object] System
[Code] Hexadecimal number of each state above
[Probable Fault Cause]
Program error
Program Example:
: :
G13 G141
M40 M110
M151 :
: M151
:
[Measures to Take]
Correct the program.
: :
G13 G141
M41<-Change to M110
M151 :
: Add->M109
M151
:

1725 VAC spindle synchronized
On multi-machining machines (sub-spindle, LT, etc.), an A-spindle rotation command,
S command, or gear range command was executed while the spindles were rotating. Or a B-spindle gear range command was executed.
[Object] System
[Code]
1->M03, M04, M05, or M19 was executed.
2->S command was executed.
3->Command M40-M44 was executed during 1st spindle synchronization.
4->Command M40-M44 was executed during 2nd spindle or sub-spindle synchronization.
[Probable Fault Cause]
Program error
Program Example:
:
G140 :
M151 M151
: :
G141 M41 S1500
M03 M42 S1000
:
[Measures to Take]
:
G140 :
M151 M151
: :
M150<- Add -> M150
M141 M41 S1500
M03 M42 S1000
:

1726 C-axis command
A C-axis command was executed when the C-axis was not in a commandable state.
[Object] System
[Code]
1->C-axis is not connected
2->C-axis is not unclamp
[Probable Fault Cause]
Program error
Operation error
Program Example:
N100 M109 C-axis disconnect
N101 G00 X100 C100 C-axis rapid feed to 100 position.
Operation Example:
A C-axis motion command was executed when the C-axis was not connected.

1727 C-axis connect command
A C-axis connect/disconnect command (M110, M109, M892, M891) was executed under illegal conditions.
[Object] System
[Code]
1->Spindle is not at zero speed.
2->Spindle is not stopped.
3->Spindle rotation command is active.
4->C-axis is clamped.
5->C-axis is interlocked.
6->C-axis connect command was executed under the other turret control.
7->Spindle synchronization control is active.
8->In super-low speed rotation mode.
9->In spindle low-speed acceleration mode.
10->C-axis disconnect was commanded while the M-tool was rotating.
11->In hobbing mode.
12->The APC pallet was not clamped.
13->The APC fork was not in down position.
[Probable Fault Cause]
1) Spindle zero speed input error
2) C-axis connect status EC input error
3) Connect signal for high-speed connect specification->Connected when slave station input CFJ is ”1″.
Program Example:
N100 M03
N101 M110
Operation Example:
M110 was commanded in MDI mode while the spindle was rotating.
[Measures to Take]
Refer to the codes above. If there is no error in the program or operation, check the relevant EC input signals.

1728 C-axis clamp/unclamp command
A C-axis clamp/unclamp (M147/M146) command was executed when the C-axis was not connected.
A C-axis clamp/unclamp command was executed for the C-axis under control of the other turret.
[Object] System
[Code]
1->A C-axis clamp/unclamp command was executed when the C-axis was not connected.
2->A C-axis clamp/unclamp command was executed for the C-axis under control of the other turret.
[Probable Fault Cause]
Program error
Operation error
Program Example:
M109 C-axis disconnect
M147 C-axis clamp
Operation Example:
An M146/M147 command was executed in MDI mode while the C-axis was disconnected.

1729 C-axis advance error
When C-axis connect command (M110) was executed, the retract end limit
switch remained ON even after 10 s had elapsed since the C-axis advance command was output.
[Probable Fault Cause]
1) Mechanical system or electrical system (EC) operation error related to the C-axis connect advance output signal.
2) Retract end limit switch input error.
[Measures to Take]
Check and adjust mechanical and electrical parts related to C-axis advance.
2) Check the retract end limit switch input.

1730 Turret clamp or position
During axis motion [function generating] (except manual operation), turret clamp signal was lost.
Or tool number disagreement continued for 1 s or more.
[Object] System
[Code] XYY
X:
None->Commanded tool number does not match current tool number.
1->During axis motion [function generating], turret clamp confirmation signal went OFF.
2->After clamping, commanded tool number does not match current tool number.
3->Cutting feed command was issued while NC turret was unclamping, and the turret was not clamped
within 500 ms after command execution.
4->When an L-tool or sensor is registered as current tool, cutting feed command was executed at an angle other than
"M-tool axis side tilt angle".
5->When NC turret is unclamped and turret index motor servo is OFF, rapid feed, manual jog
feed, or pulse handle feed command was issued.
7->Turret positioning not completed.
YY: Commanded tool number in hexadecimal
FFFFFFFF: A tool index command other than T1 was executed in NC rotary table or fixed turret specification.
[Probable Fault Cause]
1) Turret clamp confirmation limit switch error, turret-related wiring error, or index limit switch error.
2) Turret axis position encoder offset value.
[Measures to Take]
[Code] X=None->Check the EC input of tool number.
[Code] X=1, 4, or 5->Check the clamp confirmation limit switch.
[Code] X=2->Check the EC input of tool number and adjust the throttle valve of the turret rotation solenoid valve
(turret index overrun, etc.).

1731 Turret index control error
An error occurred in the turret index controller.
[Object] System
[Code] Alarm code issued from the turret index controller.
2->Unclamp timeout
3->Acceleration timeout
4->Rotation speed timeout
5->Index timeout
6->Rotation direction error
7->Deceleration timeout
8->Creep timeout
9->Clamp error
A->Position detection error 1
B->Position detection error 2
D->Neutral timeout
E->Communication error
F->Clamp timeout
[Probable Fault Cause]
1) For code X=E: Program error or MDI command error. For a 12-station turret, T14** was commanded.
2) Other codes: Turret index controller failure,
or failure in the electrical (EC) system related to turret index operation.

1732 Turret index condition
Turret index was commanded when turret index conditions were not met.
[Code] XX
1->Turret index was commanded when the clamp confirmation signal for the turret front tool or side tool was OFF.
2->A T command was executed when the Touch Setter was at the advance position.
4->On MY machine, turret index was commanded when YS-axis position was lower than the spindle center position.
5->On machine with NC turret, tow-along tailstock was in connected state.
8->Turret index was commanded when YS-axis machine coordinate position was lower than the spindle center position specified by system
parameters.
10->A turret index command was issued when the exchange
arm is not at the perpendicular or retract position.
12->On laser sensor C-axis origin offset specifications, a turret index was commanded when the laser sensor retract confirmation was OFF.
13->On an unindexable turret, a turret index was commanded when a long tool (tool type set to ML) was mounted on turret T1 or the contact sensor for in-process measurement specifications was mounted.
14->A turret index was commanded when a long tool (tool type set to ML) was mounted on turret T1 and the shutter door was closed.
15->A turret index was commanded when the tool was unclamped, or the tool clamp signal turned OFF during turret indexing.
16->On special long tool turret rotation interlock specifications, a turret index was commanded when a special long tool was mounted on the turret.
17->A turret index was commanded when the lower turret was within the spindle chuck interference zone.
18->A turret index was commanded when the finger chuck was unclamped.
Or, a turret index was commanded when neither X- nor Z-axis was at the positive limit.
19->A lower turret index was commanded when lower turret indexing was inhibited.
20->A turret index was commanded when the hob head was not open.
21->During turret indexing, the semi-dry drive unit was not unclamped.
22->A B-turret index command was issued when the B-turret index switch was OFF.
23->An A-turret index command was issued in B-axis mode.
24->A turret index command was issued during turret interference.
25->A turret rotation command was specified after the selected tool was completed.
26->A turret index command was issued when the special tool
ON. Or special tool ON command was issued when a turret
was indexing.
27->A-turret index command was issued when A-turret is in
interference area between A-turret and sub spindle chuck.

28->M spindle actual angle is not “M spindle angle for
turret index” or M spindle angle is shifted from
“M spindle angle for turret index” when turret is
rotating.
[Probable Fault Cause]
1->A turret index was commanded during tool change or manual tool load/unload.
Check for damage to the front/side tool clamp confirmation input proximity switches and signal cables.
Check for damage to the hydraulic solenoid valve for front/side tools.
8->In Y-axis mode, a turret index was commanded when the current Y-axis position was negative.
12->A turret index was commanded when the laser sensor was at the advance position,
or the laser sensor retract confirmation input switch is defective.
[Related Specifications]
1) ATC multitasking machine, LT lathe, or Y-axis lathe
3) C-axis origin offset matching check specifications using laser sensor

1733 Tool number input
The turret tool number is not input as specified.
(Proper input of the turret tool number depends on the machine model. Refer to the explanation below.)
1) LC, LH, LS series
I/O check No. 28 input bit 0 to bit 7 correspond to tool Nos. 1 to 8.
I/O check No. 37 input bit 0 to bit 3 correspond to tool Nos. 9 to 12.
2) LB10, LB15, LP15
See Table 1.
3) LS30N, LH35N, LH55N (Index method: rotary switch)
See Table 2.
LCS15 (Index confirmation method: limit switch or proximity switch)
Table 1)
I/O check No. 28 bit 0 to bit 7 (A-turret)
I/O check No. 37 bit 0 to bit 7 (B-turret)
T b7 b6 b5 b4 b3 b2 b1 b0
1 0 0 0 0 0 0 0 1
2 0 0 0 0 0 0 1 0
3 0 0 0 0 0 1 0 0
4 0 0 0 0 1 0 0 0
5 0 0 0 1 0 0 0 0
6 0 0 1 0 0 0 0 0
7 0 1 0 0 0 0 0 0
8 1 0 0 0 0 0 0 0
Table 2) LCS15, LCS25
I/O check No. 28 bit 0 to bit 7 (A-turret)
I/O check No. 37 bit 0 to bit 7 (B-turret)
T b7 b6 b5 b4 b3 b2 b1 b0
1 0 0 0 0 0 0 1 1
2 0 0 0 0 1 0 0 1
3 0 0 0 0 0 1 0 1
4 0 0 0 1 0 0 0 1
5 0 0 0 1 0 1 1 1
6 0 0 0 1 1 1 0 1
7 0 0 0 0 1 1 1 1
8 0 0 0 1 1 0 1 1
9 0 1 0 1 0 0 1 1
10 0 1 0 0 1 1 0 1
11 0 0 1 0 1 1 0 1
12 0 0 1 1 0 0 1 1
[Object] SYSTEM
[Code] XXX: Tool number input at alarm occurrence (hexadecimal)
[Probable Fault Cause]
1) Turret-related limit switches
2) Proximity switch gap
3) Turret wiring

1734 Auto transfer chuck interlock
An attempt was made to unclamp the auto transfer chuck while the auto transfer spindle was rotating.
Or, an attempt was made to rotate the auto transfer spindle while the auto transfer was unclamped.
[Object] SYSTEM
[Code]
1->An unclamp command was executed while the auto transfer spindle was rotating.
2->An unclamp/clamp command was executed while the auto transfer spindle was stopped.
3->An unclamp command was executed when an auto transfer spindle rotation command was executed.
4->An auto transfer spindle rotation command was executed when the auto transfer chuck was unclamped.
5->On polygon machining specifications, an unclamp/clamp command was executed while the spindle and auto transfer spindle were rotating synchronously, or the clamp confirmation input was OFF.
6->The auto transfer unit clamp confirmation did not turn OFF while the auto transfer spindle was rotating.
[Probable Fault Cause]
1) Program error
2) Operation error
Program example:
M13 SB=1000
M249
[Measures to Take]
1) Correct the program.

1735 Auto transfer chuck clamp
Sub-spindle chuck pressure was insufficient during sub-spindle rotation or during sub-spindle chuck open/close operation.
I/O check No. 32 Bit 5 (i2CPA/) remained OFF for 2 s or longer.
[Code]
100->Sub-spindle chuck pressure was insufficient during sub-spindle rotation or during sub-spindle chuck open/close operation.

1736 Auto transfer unit index position
On auto transfer unit specifications, a transfer rotation command or a spindle synchronized rotation command was executed before the auto transfer unit spindle was indexed. Or, an M-axis rotation command or a spindle synchronized rotation command was executed after auto transfer unit indexing was completed.
[Object] SYSTEM
[Code]
1->Transfer spindle is not indexed.
2->Transfer spindle indexing is completed.
[Probable Fault Cause]
1) Program turret index command
2) Transfer turret position setting

1737 Turret unclamp command illegal M code
The M203 command is not in the same block as G00.
[Object] SYSTEM
[Code]
None->M203 command was not specified in the block containing G00.
1->M203 command was specified under specific motor brake control.
[Probable Fault Cause]
1) Programming error
2) Erroneous command in MDI mode
[Measures to Take]
Program example
G01X200F10
G00X500Z800M203
G00X220Z300T0202

1738 Turret rotation inhibit
A turret rotation command was executed when the turret pulse handle feed parameter was ON.
[Object] SYSTEM
[Code]
1->NC turret pulse handle bit in machine user parameters is ON.
2->NC turret backlash adjustment bit in machine user parameters is ON.
3->After power-on, a turret index command was executed before turret home position return.
4->On MacTurn series 1/1000-degree specifications, a turret index command was executed in high-pressure brake state.
5->M65 command was specified under specific motor brake control.
[Measures to Take]
1) Turn OFF the parameter.
4) Adjust the high-pressure brake state.

1739 Chuck clamp
ID/OD chucking was switched during chuck open/close operation, or low chuck pressure was insufficient for 2 s or longer.
[Object] SYSTEM
[Code]
1->Finger chuck pressure was insufficient for 2 s or longer.
2->Neutral chuck pressure was insufficient for 2 s or longer.
3->Combination chuck pressure was insufficient for 2 s or longer.
4->OD chucking pressure was insufficient for 2 s or longer.
100->Chuck pressure was insufficient for 2 s or longer.
Spindle 1: I/O check No. 24 Bit 4 (iCPA/) is 0. For an air chuck, I/O check No. 38 Bit B (iAPA/) is 0.
Spindle 2: I/O check No. 32 Bit 5 (i2CPA/) is 0. For an air chuck, I/O check No. 38 Bit F (i2APA/) is 0.
101->Rear air chuck pressure was insufficient for 2 s or longer.
102->Tailstock chuck pressure was insufficient for 2 s or longer.
I/O check No. 56 Bit 3 (iTSCPA/) is 0.
103->Center work rest pressure was insufficient for 2 s or longer.
[Probable Fault Cause]
1) Insufficient hydraulic oil
2) Hydraulic motor error

1740 Chuck condition
A chuck open/close command (M83, M84) was executed while the spindle was rotating or while the milling tool was rotating.
An attempt was made to open/close the chuck when the external interlock signal was ON (only on special specifications such as loader).
[Object] SYSTEM
[Code]
1->Spindle zero speed signal is absent.
2->Spindle stopped signal is absent (5 [1/min] or higher).
3->Spindle rotation command is being executed.
4->External interlock signal is ON (Slave station 13 input strobe 2, bit 3).
5->Milling tool zero speed signal is absent.
6->Milling tool stopped signal is absent.
7->Milling tool rotation command is being executed.
A->C-axis is rotating.
B->M83 or M84 command was executed when the OD centering chuck was unclamped.
12->An attempt was made to unclamp the chuck when the lower turret was not at the home position (workpiece load/unload position).
13->A tailstock or chuck clamp/unclamp command was executed while the spindle was rotating.
14->A tailstock or chuck clamp command was issued during tow-along connection.
15->Chuck clamp/unclamp command and chuck high/low pressure command were issued at the same time.
16->A chuck high/low pressure command was issued while the spindle was rotating.
17->A chuck unclamp command was issued while the tailstock quill was advanced.
18->A chuck clamp/unclamp command was issued when the tailstock was not engaging the workpiece.
20->When the air chuck select switch was ON, the hydraulic chuck was not unclamped.
31->A chuck clamp/unclamp command was issued when the indexing chuck seating confirmation unit retract confirmation signal was OFF.

32->The indexing chuck seating confirmation unit retract confirmation signal turned OFF during chuck clamp/unclamp operation.
33->A clamp command was issued to one chuck of the TEIKOKU combination chuck while the other chuck was not unclamped.

34->A workpiece clamp command M83 (chuck advance/jaw clamp) was issued when the jaws of the WOODWORTH combination chuck were not unclamped.

35->The OD clamping chuck (3-jaw) was clamped/unclamped while the mandrel chuck was unclamped.
36->A 3-jaw chuck close command (M483) was issued while the tool was in the chuck interference area.
40->A chuck open/close command was issued from the loader while the ceiling door was open and the spindle was rotating.
41->During ceiling door open and chuck interlock release command, a chuck open command was issued when the spindle speed exceeded the allowable maximum speed set by parameter.

42->For the chuck interlock release special specification, during front door open and chuck interlock release command, a chuck open command was issued when the spindle speed exceeded the allowable maximum speed set by parameter.

43->A finger chuck clamp command was issued when the centering chuck was not clamped.
44->An ejector advance command was issued when the centering chuck and finger chuck were not unclamped.
45->A centering chuck clamp command was issued when the ejector was not retracted.
46->A chuck close command was issued when the workpiece pusher was not at the retracted end.
47->A finger chuck high/low pressure command was issued when the finger chuck was not clamped.
48->A chuck clamp command was issued when the tailstock was not advanced.
49->A tailstock unclamp command was issued while the spindle was rotating.
50->Chuck ID clamping was commanded for the chuck OD clamping dedicated specification.
51->A chuck open/close command was issued when the Touch Setter was not at the retracted end.
52->A collet chuck clamp command was issued when the collet chuck was not at the advanced position.
53->A collet chuck advance/retract command was issued when the collet chuck was not unclamped.
54->A finger chuck unclamp command was issued while the spindle was rotating.
Or, a collet chuck advance command was issued while the spindle was rotating.
55->A loader advance/retract command was issued while the spindle was rotating.
56->The chuck was not unclamped when the tailstock advanced/retracted.
57->A finger chuck unclamp command was issued while the turret was indexing.
58->A finger chuck unclamp command was issued before indexing to the designated turret position was completed.
59->Electromagnetic chuck breakage was detected.
60->A reverse command was issued during electromagnetic chuck operation.
61->An excitation level command was issued when the electromagnetic chuck was not magnetized.
62->A lower excitation level command was issued.
63->A chuck open/close command was issued when the collet chuck valid/invalid switch was set to invalid.
64->A collet chuck open/close command was issued when the finger chuck was not clamped.
65->A collet chuck open/close command was issued while the spindle was rotating.
66->A chuck high/low pressure command was issued when the chuck pressure was in automatic change mode.
67->A chuck open command was issued while in clamp closed state.
68->A chuck open command was issued when the spindle was not at the commanded position.
69->A chuck stopper advance/retract command was issued when the tailstock spindle was not at the retracted end.

70->A chuck stopper advance/retract command was issued when the chuck was not unclamped.

71->A tailstock advance command or chuck clamp command was issued during chuck stopper advance/retract operation.


72->A stopper advance command was issued when the chuck was not clamped.

73->A collet chuck advance/retract command was issued while the spindle was rotating.

74->A finger chuck unclamp/clamp command was issued when the collet chuck was not retracted.

75->A chuck unclamp command was issued when CHUCK CENTER was
advanced.
76->A workpiece clamp/unclamp command was issued when chuck
clamp unit was not clamped.
77->A chuck clamp unit clamp/unclamp command was issued when
workpiece chuck was not opend.
78->Chuck clamp command is designated while the spindle is
not at the specified position.
200->After the chuck clamp command was issued and the time set by parameter elapsed, the pressure check PS did not turn ON.
201->The pressure check PS turned OFF during chuck clamp state.
[Probable Fault Cause]
1) [Code] 3, 6, 7->Operation error
2) [Code] 1, 5->Spindle drive unit failure.
3) [Code] 2->Spindle coasting. (5 [min-1] or higher)
[Remedy]
1) [Code] 3, 6, 7->Command chuck unclamp/clamp after confirming that the spindle and the M-tool spindle have stopped.
2) [Code] 1, 5->Check the spindle drive unit board and connectors.
3) [Code] 2->Command only after the spindle has completely stopped.
4) [Code] 20->Turn OFF the air chuck select switch, reset the alarm using the NC reset button,
command hydraulic chuck unclamp, and then turn ON the air chuck select switch again.
5) [Code] 55->Execute loader advance or retract after the spindle and M-tool spindle stop command.

1741 Chuck unclamp
A spindle or M-tool spindle rotation command was issued when the chuck was not clamped.
Or, the chuck clamp signal was lost during spindle rotation.
[Object] System
[Code]
1->A spindle rotation command was issued (in chuck unclamp state).
2->The chuck clamp signal was lost during spindle rotation.
3->An M-tool spindle rotation command was issued (in chuck unclamp state).
4->The chuck clamp signal was lost during M-tool spindle rotation.
7->A spindle rotation command was issued when the tailstock was unclamped.
8->The spindle chuck was unclamped during spindle rotation.
9->During ceiling door open and chuck interlock release command, the spindle speed in chuck unclamp state
exceeded the allowable maximum speed set by parameter.
10->For the chuck interlock release special specification, during front door open and chuck interlock release command,
the spindle speed in chuck unclamp state exceeded the allowable maximum speed set by parameter.
11->A spindle rotation command was issued when the chuck was not clamped or the center unit was not at the advance position.
Or, the chuck clamp signal was lost or the center unit was not at the advance position during spindle rotation.
12->A spindle rotation command was issued when the finger chuck was not clamped.
A spindle rotation command was issued when the collet chuck was not retracted.
13->A spindle rotation command was issued when the loader had not reached the retract position.
Or, the loader left the retract position during spindle rotation.
14->Chuck close signal is turned off during C-axis rotation.
[Probable Fault Cause]
1) [Code] 1, 3->Operation error
2) [Code] 2, 4->Limit switch failure, dog adjustment error
[Remedy]
1) [Code] 1, 3: Issue the spindle rotation command after issuing the chuck clamp command.
2) [Code] 2, 4: Replace the LS or readjust the dog position.
3) [Code] 13: Issue the spindle rotation command after issuing the loader retract command.

1742 Chuck interlock release condition
When the chuck open/close interlock release command M185 (main spindle) or M247 (sub-spindle
or pickoff chuck) was issued, the door was not closed.
[Object] System
[Code]
7->A G138 command was issued while the pickoff chuck was open.
10->A chuck interlock release command (M185) was issued while the ceiling door was not closed.
Or, the ceiling door was not closed during chuck interlock release (M185).
11->For the chuck interlock release special specification, a chuck interlock release command was issued
when the ceiling door was open while the robot/loader system link was OFF.
12->For the chuck interlock release special specification, a chuck interlock release command was issued
when the ceiling door was open while the robot/loader system link was OFF.
13->A chuck interlock release command (M185/M247) was issued
when the front door was not closed and the spindle speed exceeded 50 [min-1].
14->The front door is not closed when M185 (main spindle chuck
open/ close interlock release command)or M247(sub spindle
chuck or pickoff chuck open/close interlock release
command) is designated.
15->The ceiling door is not closed when M185 (main spindle
chuck open/ close interlock release command)or M247(sub
spindle chuck or pickoff chuck open/close interlock
release command) is designated.
[Probable Fault Cause]
1) Code 13->Programming error
[Remedy]
1) For code 13->After the spindle speed drops below 50 [min-1],
issue the chuck interlock release command (M185/M247).

1743 Indexing chuck
A spindle rotation command was issued when indexing was not in progress and the indexing completion signal was OFF.
The conditions for indexing were not met when the indexing command was issued.
The indexing chuck hydraulic pressure is insufficient.
[Code]
1->A spindle rotation command was issued when indexing was not in progress and the indexing completion signal was OFF.
2->Chuck indexing did not complete within the preset time.
3->When the indexing command was issued, the Z-axis was not at the positive limit.
4->When the indexing command was issued, the chuck was not clamped.
5->The indexing chuck hydraulic pressure is insufficient.
6->An indexing command was issued when the indexing confirmation input signal was OFF or two or more signals were ON simultaneously.
7->Indexing to the target position could not be completed, or two or more indexing confirmation input signals were ON simultaneously.
8->The indexing chuck hydraulic oil amount is insufficient.
9->An indexing command was issued when the spindle speed exceeded the allowable indexing speed.
10->An indexing command was issued when the indexing chuck select switch was not set to valid.
11->Position request alarm.
12->Position alarm.
13->Sequence error.

1744 Air chuck
Air pressure confirmation switch does not respond.
[Object]System
[Code]
1->Pressure does not build up.
2->After pressure buildup, pressure does not drop.
3->Rear air chuck pressure does not build up.
4->After rear air chuck pressure buildup, pressure does not drop.
13->Air chuck open/close was attempted while SMW switch was OFF.

1745 Chuck clamp failure
[Code]
None->Although the workpiece is clamped in the chuck, the chuck clamp check pressure switch is not ON.
Or, the workpiece is not clamped properly.
1->Although the workpiece is clamped in the tailstock chuck,
the tailstock chucking error detection pressure switch is not
activated. Or, the workpiece is not clamped properly in the
tailstock chuck.
[Probable Fault Cause]
Operation error (clamp error)

1746 Chuck clamp without workpiece
[Code]
1->The chuck was clamped without a workpiece.
2->Spindle rotation command was executed while the chuck was clamped without a workpiece. (Spindle indexing)

1747 Tailstock quill extend answer
Within 60 s after execution of tailstock quill extend command M56, the tailstock quill in-position answer signal is not received.
[Code]
2->Within 60 s after execution of tailstock quill extend command, the tailstock quill in-position answer signal is not received.
3->When the tailstock quill extend command is issued via robot/loader (including interface) or M-code,
the in-position answer signal is not received within the parameter set time.
[Probable Fault Cause]
Improper adjustment of the tailstock quill in-position confirmation limit switch.
[Remedy]
Operate the tailstock quill to extend and press against the workpiece, then adjust until both the in-position limit switch and
overtravel limit switch are turned ON.

1748 Tailstock quill overtravel
Tailstock quill overtraveled and actuated the overtravel limit switch.
[Code]
1->Tailstock quill overtraveled and actuated the overtravel limit switch.
2->Tailstock quill overtraveled; after completion of extension, the in-position limit switch is not ON.
3->Under NC tailstock specification,
the tailstock spindle overtraveled and the workpiece hold confirmation
limit switch is OFF.
[Probable Fault Cause]
1->Workpiece length is insufficient (operational error)
2->Tailstock quill position is too far; before pressing against the workpiece, the overtravel limit switch is actuated.
3->Tailstock quill extend was commanded when no workpiece was present.
[Remedy]
1) Move the tailstock body closer to the workpiece. Or adjust the stopper position.
2) Mount the workpiece in the chuck, then command tailstock quill extend.

1749 Tailstock quill condition
When tailstock quill extend/retract (M55/M56) was commanded, the spindle and/or M-tool spindle
was not in the stopped state.
Tailstock retract command was executed while the spindle was rotating.
When spindle or M-tool spindle rotation was commanded, the tailstock quill was not at the specified position.
*Specified position:
1) Tailstock quill in-position position for shaft workpieces.
2) Tailstock quill extend hold pedal is not depressed for shaft workpieces.
3) Tailstock quill retract position for chuck-work workpieces.
[Object]System or blank
[Code]
1->M55/M56 command was executed when the spindle was stopped (spindle zero speed input signal is ON, no spindle rotation
command (M03/M04), no spindle rotation output signal).
Or, during spindle rotation (M03/M04), the tailstock quill was not at the specified position.
2->M55 or M56 command was executed when not in shaft workpiece mode.
3->M55/M56 command was executed when the M-tool spindle was stopped (zero speed input signal is ON, no spindle rotation
command (M13/M14), no spindle rotation output signal).
4->When M-tool spindle rotation was executed, the tailstock quill was not at the specified position.
5->During M-tool spindle rotation, the tailstock quill deviated from the specified position.
6->M-code command was executed when the special steadyrest was at the retract position.
7->Tailstock quill extend/retract command was executed during C-axis rotation.
8->With touch setter specification, tailstock quill extend command (M56) was executed
when the touch setter arm was not at the retract end.
9->M56 command was executed in programmable tailstock connection state.
13->Tailstock quill extend/retract command was executed when the tailstock chuck was not unclamp.
14->Tailstock chuck open/close command was executed when the tailstock chuck control switch was OFF, or chuck-work workpiece was selected.
15->Tailstock quill extend/retract command was executed when simple tow-along connection was OFF.
18->Spindle rotation command was executed when the tailstock quill was neither at the in-position position nor at the retract end.
19->Tailstock chuck open/close command was executed when the tailstock quill was neither at the in-position position nor at the retract end.
20->Tailstock quill extend/retract command was executed when the chuck was not unclamp.
21->Tailstock quill extend/retract command was executed when the workpiece rest was not at the raised end.
22->Tailstock quill extend was operated when the chuck was unclamp.
23->With programmable tailstock, M55/M56 command was executed when the tailstock was not at the tailstock quill operable position.
24->With simple tow-along tailstock with auto clamp/unclamp mechanism, tailstock quill extend/retract command was executed when the tailstock was unclamped.
25->Tailstock quill extend/retract command (M56/M55) was executed when the tailstock was in the travel prohibited range, or when the boundary parameter was '0'.
26->Tailstock quill extend/retract command was executed when the tailstock quill/workpiece pusher selector switch was not in the tailstock quill select position.
27->Tailstock quill extend/retract command was executed when the workpiece puller was not at the retract end.
28->Tailstock quill extend/retract command was executed when the deflashing unit was not at the retract end.
29->M56 command was executed when the spindle was not in the stopped state.
Or, during spindle rotation, the tailstock was at the extend position.
30->Tailstock quill extend command was executed when the workpiece ejector was not at the retract end.
31->Tailstock quill retract command was executed when the chuck was unclamp and the workpiece rest was not at the raised end.
32->Tailstock quill extend command was executed when the chuck was unclamp, spindle was oriented, and the workpiece rest was not at the raised end.
33->Tailstock quill extend/retract command was executed when the workpiece pusher was not at the retract position.
34->Tailstock quill extend/retract command was executed when neither the upper nor lower turret was at the positive limit.
35->Tailstock quill extend/retract command was executed when the turret was indexed to the steadyrest mounting position.
36->Tailstock quill extend command was executed when the temporary rest was not in the lowered state.
37->Tailstock quill extend/retract command was executed when the temporary rest was not in the lowered state.
38->With temporary rest specification, tailstock quill extend command was executed when the XB-axis was not at the positive limit or the temporary rest was indexing.
39->Workpiece support position move command was executed when the tailstock was retracted and not at the in-position position.
40->Tailstock quill extend/retract command was executed when the tailstock quill was not unclamped.
41->Tailstock quill extend/retract command was executed when the temporary rest was not at the insertion position.
42->M529 command was executed when not in shaft workpiece mode.
43->Tailstock quill extend command was executed when the temporary rest was not at the extraction position.
44->Tailstock manual command (pedal/pushbutton) was executed while the tailstock was being extended/retracted by M-code (M55/M56), or tailstock manual extend and retract commands were issued simultaneously.
45->Tailstock extend/retract command (M55/M56/M847/M848) was issued while tailstock teach mode was ON.
46->NC tailstock extend command (M56) was executed when the workpiece hold confirmation limit switch was ON.
*Codes 1, 3, and 8 can be interlock-released by M157 command.
[Probable Fault Cause]
1) Spindle and M-tool spindle zero speed input signal fault.
2) Program error
3) Operation error
Program Example:
N100 M03 S500
N101 M55
Operation Example:
In chuck-work mode with the tailstock in the extended state, spindle rotation was commanded.
[Remedy]
1) Ensure there is no program error or operation error.
2) Check the zero speed signal input.
[Related Specifications]
M-code tailstock quill extend/retract function

1750 Tailstock interference
Tow-along steadyrest and tailstock interfered.
Or, G152 (tailstock programmed travel) command was executed when the steadyrest was connected.
[Code]
1->Tow-along steadyrest and tailstock interfered.
2->G152 (tailstock programmed travel) command was executed when the steadyrest was connected.
[Probable Fault Cause]
1) Program error
2) Operation error
Program Example:
:
M79 Steadyrest close
G152 Z100
:

1751 Tow-along tailstock condition
When there was no spindle zero speed signal or spindle stopped signal, M189 (tailstock connect) or G152 (tow-along tailstock movement cycle) command was executed.
M189 or G152 command was executed during spindle rotation.
M189 or G152 command was executed when shaft workpiece machining was not selected.
M189 or G152 command was executed when the tailstock quill was not at the retract end or the turret was not at the positive limit.
[Code]
1->M189 or G152 command was executed when there was no spindle zero speed signal.
2->M189 or G152 command was executed when there was no spindle stopped signal.
3->M189 or G152 command was executed while spindle rotation command was being output.
4->M189 or G152 command was executed when shaft workpiece machining was not selected.
5->M189 or G152 command was executed when the tailstock quill was not at the retract end.
6->M189 or G152 command was executed when the turret was not at the positive limit.
7->M189 or G152 command was executed when disconnect and connect signals were both ON or both OFF.
8->When the tailstock connect button was pressed, the spindle stopped signal was lost.
9->When the tailstock connect button was pressed, the XA-axis was off the positive limit.
10->When the tailstock connect button was pressed, the tailstock was not at the retract end.
11->When the tailstock connect button was pressed, the tailstock was not unclamped.
12->M189 or G152 command was executed when the tailstock was not unclamped.
Or, ZA-axis move command was executed in programmed tow-along tailstock connection state.
13->Tailstock chuck clamped in tow-along tailstock or simple tow-along tailstock connection state.
Or, simple tow-along tailstock disconnect confirmation signal was OFF when the tailstock chuck was not unclamped.
14->Tailstock chuck clamp command was executed when disconnect confirmation signal was OFF.
15->M189 command was executed when the tailstock was not at the connect return position.
16->G02, G03, G30, G31, G32, G33, G34, or G35 command was executed when the NC tailstock was unclamped.
17->Axis move command other than W- and Z-axes was executed when the NC tailstock was unclamped.
18->W-axis move command was executed on the NC tailstock when the XA-axis was not at the positive limit, the tailstock quill was not at the retract end, the tailstock was not unclamped, or the spindle was not stopped.
19->M189 or G152 command was executed when the workpiece pusher was not at the retract end.
20->When tailstock connect ON was pressed, the workpiece pusher was not at the retract end.
21->M189 or G152 command was executed when neither the tailstock chuck nor the spindle chuck was unclamped.
ZA-axis move command was executed in programmed tailstock connection state.
22->During tow-along tailstock or simple tow-along tailstock connection,
neither the tailstock chuck nor spindle chuck is in unclamp state.
[Probable Fault Cause]
Operation error
[Related Specifications]
Programmable tailstock

1752 Tow-along tailstock clamp/unclamp
Neither the connect ON nor OFF signal was input for more than 6 s.
Both the connect ON and OFF signals were input simultaneously for 6 s or more.
The connect ON answer signal was present when the X-axis was out of the stroke end or the tailstock quill was not at the retract end.
[Code]
None->Neither the connect ON nor OFF signal was input for more than 6 s.
Or, an X/Z-axis movement command was executed under the above conditions.
3->The connect ON and connect OFF signals were output for more than 6 s.
4->Both the connect ON and OFF signals were input simultaneously for 6 s or more.
5->The connect ON answer signal was present when the tailstock quill was not at the retract end.
6->With the simple tow-along tailstock specification with tailstock auto clamp/unclamp unit,
the tailstock clamp answer signal was OFF for 1 s or more in auto or MDI operation mode.
7->The tailstock was not in unclamp state during W-axis movement.
8->The connect ON answer signal was present when the work pusher was not at the retract end.
9->No tailstock unclamp answer signal was input even after executing the unclamp command for the unclamp retry count.
10->No clamp answer signal was input after executing the tailstock clamp command and waiting for the tailstock clamp/unclamp time.
11->The tailstock was in neither clamp nor unclamp state for 6 s or more.
12->The X-axis was not at the stroke end and the tailstock was not unclamped for 6 s or more.
Or, a W-axis rotation command was executed under the above condition.
13->The tailstock was not at the retract end and was unclamped for 6 s or more.
Or, a W-axis rotation command was executed under the above condition.
[Probable Fault Cause]
[Code] None or 3->Connect ON/OFF answer signal fault or improper adjustment.
[Code] 4->X-axis is not at the positive stroke end.
[Code] 5->The tailstock quill is not at the retract end or the retract end limit switch is not actuated.
[Code] 6->The tailstock is not clamped.
[Remedy]
[Code] None or 3->Check or adjust the mounting position of the connect ON/OFF limit switches.
[Code] 4->Move the X-axis to the stroke end position.
[Code] 5->Retract the tailstock quill; check the retract end LS.
[Code] 6->Clamp the tailstock in manual operation mode.
[Related Specifications]
Programmable tailstock

1753 Parts catcher interlock
Parts catcher advance or retract was commanded during an interlock state.
[Code]
0->A parts catcher advance command was executed when the Z-axis was away from the positive limit position,
or an axis movement command was executed while the parts catcher was advanced.
1->A parts catcher advance command was executed when the door was not closed.
2->A parts catcher advance or retract command was executed when the touch setter was not at the retract end.
3->A parts catcher advance or retract command was executed when the door was not closed.
4->A parts catcher advance or retract command was executed when the ZB-axis was away from the positive limit position.
A ZB-axis movement command was executed when the parts catcher was not at the retract end.
Or, the parts catcher left the retract end during ZB-axis movement.
5->A parts catcher retract command was executed when the parts catcher was not at the retract end or was advancing.
6->A parts catcher rotary shaft advance or retract command was executed when the parts catcher was not at the advance end or was retracting.
7->A parts catcher advance or retract command was executed when the parts catcher rotary shaft was not at the advance end or was retracting.
8->A parts catcher rotary shaft advance or retract command was executed when the parts catcher arm was not at the advance end or was retracting.
9->A parts catcher rotary shaft advance or retract command was executed when the parts catcher guide shaft was not at the retract end or was advancing.
10->A parts catcher arm retract command was executed when the parts catcher rotary shaft was not at the retract end or was advancing.
11->A parts catcher guide shaft advance command was executed when the parts catcher rotary shaft was not at the retract end or was advancing.
12->A parts catcher advance/retract command was executed when the XA- or ZA-axis was away from the positive limit. Or,
an axis movement command was executed while the parts catcher was advanced.
13->A parts catcher advance/retract command was executed when the spindle was not stopped. Or,
an axis movement command was executed while the parts catcher was advanced.
14->A parts catcher advance/retract command was executed when the XA- or ZA-axis was away from the positive limit. Or,
a spindle rotation command was executed while the parts catcher was advanced.
15->A parts catcher advance/retract command was executed when the spindle was not stopped. Or,
a spindle rotation command was executed while the parts catcher was retracted.
16->During automatic operation, a door open/close command was executed when the external workpiece tray confirmation input signal was not ON.
17->During automatic operation, a parts catcher retract command was executed when the external workpiece tray confirmation input signal was not ON.
18->A door open/close command was executed when the parts catcher was not in retract state.
<The following codes apply only to parts catcher for subspindle of 2-spindle machines, slide type parts catcher,
LT + subspindle specification lathes>
21->A parts catcher advance or retract command was executed when the XB-axis was not at the positive limit position.
22->A parts catcher advance or retract command was executed when the ZB-axis was not at the workpiece tray position.
23->A parts catcher advance or retract command was executed when the W-axis was not within the operating range.
24->A parts catcher advance or retract command was executed while the subspindle was rotating. Or,
a subspindle rotation command was executed when the parts catcher was not at the retract end.
25->A parts catcher advance or retract command was executed when the door was not closed. However, with the ’LT specification
+ subspindle specification’, a parts catcher advance or retract command was executed when the right door was not closed.
26->An XB- or ZB-axis movement command was executed when the parts catcher was not at the retract end. Or,
the parts catcher left the retract end during XB- or ZB-axis movement.
27->A command to move the workpiece tray position beyond the W-axis workpiece transfer position was executed
when the parts catcher was not at the retract end. Or vice versa.
30->A parts catcher advance or retract command was executed when the Za-axis was on the positive side beyond the Za-axis operating range.
31->A parts catcher advance or retract command was executed when the Zb-axis was on the negative side beyond the Zb-axis operating range.
32->A parts catcher advance or retract command was executed when the Zc-axis was on the positive side beyond the Zc-axis operating range.
33->The Za-axis moved to the positive side beyond the Za-axis operating range when the parts catcher was not at the retract end.
34->The Zb-axis moved to the negative side beyond the Zb-axis operating range when the parts catcher was not at the retract end.
35->The Zc-axis moved to the positive side beyond the Zc-axis operating range when the parts catcher was not at the retract end.
36->A parts catcher advance or retract command was executed when the touch setter on the R-spindle side was not at the retract end.
37->The touch setter on the R-spindle side left the retract end when the parts catcher was not at the retract end.
40->A parts catcher advance or retract command was executed when the Zb-axis was on the positive side beyond the Zb-axis operating range.
41->A parts catcher advance/retract command was executed when the W-axis was not at the W-axis workpiece transfer position. Or,
an axis movement command to the negative side of the W-axis workpiece transfer position was executed when the parts catcher was not at the retract end.
42->A parts catcher advance/retract command was executed when the touch setter was not at the retract end. Or,
the touch setter left the retract end when the parts catcher was not at the retract end.
43->An axis movement command to the positive side beyond the ZB-axis operating range was executed when the parts catcher was not at the retract end.
44->An XB-axis negative direction movement command was executed when the parts catcher was not at the retract end.
45->A parts catcher advance command was executed when unloader slide 2 was not at the retract position.
[Related Specifications]
Parts catcher

1754 Interlocked external device fault
A fault occurred in the interlocked external equipment (loader, unloader, robot, etc.).
[Code]
1->With loader interface specifications, both the loader continuous operation and
loader non-interference signals from the loader turned OFF simultaneously.
2->In the case of stacker crane I/F specification,
if the APC operation OK signal turned OFF
during APC operation in the ON state of the
SYSTEM LINK switch.
Or, M934 command was designated in the APC
operation OK signal OFF and the ON state of
the SYSTEM LINK switch.
However, when “1” is set at item “Reverse
input APC start OK (1:Stops by input ON)”
of the MC user parameter ROBOT LOADER I/F,
this alarm occurs by the APC operation OK
signal ON.
[Probable Fault Cause]
1) Interlocked external device (loader, unloader, robot)
2) Emergency stop pushbutton or similar on the interlocked external equipment was pressed.
[Remedy]
1) Reset after clearing the fault in the interlocked external equipment.
2) Release the emergency stop pushbutton on the interlocked external equipment.
[Related Specifications]
Robot/loader interface specifications
Unloader interface specifications
Stacker crane interface

1755 Robot inside machine
A door close command, axis movement command, or spindle rotation command was executed while the robot was inside the machine.
[Object] System or none
[Code]
1->A door close command was executed while the robot was inside the machine.
2->An axis movement command was executed.
3->A spindle rotation command (excluding jog, oscillation, and spindle
orientation) was executed while the robot was inside the machine.
4->A partition door close command was executed while the robot was inside the machine.
5->A headstock rotation command was executed while the robot was inside the machine.
6->A headstock unclamp command was executed while the robot was inside the machine.
[Probable Fault Cause]
Program error
[Remedy]
Correct the program.

1756 Loader inside machine
With the robot/loader auto door specification, the loader retract position turned OFF.
The door was closed or a door close command was executed when the interlinked equipment retract position was OFF.
A spindle/subspindle/M-tool spindle rotation command was executed when the interlinked equipment was not at the retract position.
An axis movement/turret indexing command was executed when the interlinked equipment was not at the retract position.
A ceiling door close, partition door close, axis movement, or spindle rotation command was executed while the loader was inside the machine.
1->A spindle or subspindle rotation command was executed when the NC loader was not outside the machine.
The NC loader was not outside the machine when the spindle/subspindle speed exceeded the allowable speed.
2->An MA/MB rotation command was executed when the NC loader was not outside the machine.
The NC loader was not outside the machine when the MA/MB speed exceeded the allowable speed.
3->The door closed, or a door close or ceiling door close command was executed
when the interlinked equipment retract position was OFF.
The following occurred when the NC loader was not outside the machine:
(For non-ceiling door specifications) Front door is not open.
(For ceiling door specifications with interlock ON) Front door is closed, and ceiling door is not open.
(For ceiling door specifications with interlock OFF, integrated ceiling door type)
Front door is open and ceiling door is not closed, or front door is closed and ceiling door is not open.
(For ceiling door specifications with interlock OFF, non-integrated ceiling door type)
Ceiling door is not open.
4->An axis movement command was executed while the interlocked device retracted position was OFF.
Or, the interlocked device retracted position turned OFF during axis movement.
5->While the loader is inside the machine door, the door open confirmation signal turned OFF.
With robot/loader interface specifications, while the interlocked device retracted position is OFF,
a turret indexing command was executed.
During turret indexing, the NC loader is not outside the lathe.
7->A spindle stock swivel command was executed while the C-loader was not at the retracted position.
8->A spindle stock unclamp command was executed while the NC loader was not outside the lathe.
9->A loader alarm occurred while the loader was entering the machine interference area.
[Remedies]
Move the loader outside the lathe.

1757 Loader interlock
A loader arm movement command (M37 - M39) was executed under one of the following conditions:
1->Door is open.
2->In automatic operation mode, the loader is not in the longitudinal position.
3->Any of the X, Z, W-axis (sub-spindle machines only) is not at the positive limit.
4->Spindle and sub-spindle rotation directions are different.
5->For Touch Setter specification, the sensor is not at the retracted end.
6->For dual-hand loader specification, a Y/V-axis movement command was executed when the Y hand was not at the A position.
7->For dual-hand loader specification, a Y/V-axis movement command was executed when the V hand was not at the retracted end.
[Code]Corresponds to the condition number above

1758 Loader not in retracted position
A loader door close command was executed or the front door closed confirmation
signal was input when the loader was not at the retracted position.
[Code]
1->A loader door close command was executed.
2->Front door close confirmation signal was lost.
3->The loader retracted position signal was lost when the machine door was closed.
The machine door open confirmation signal was lost when the loader retracted position signal was OFF.
A machine door close command was executed when the loader retracted position signal was OFF.
4->A spindle rotation command was executed when the loader was not at the retracted position.
5->The X- or Z-axis moved when the loader was not at the retracted position.
6->The Touch Setter retracted end signal was lost when the loader was not at the retracted position.
7->The loader (ceiling door) door open signal was lost when the loader was not at the retracted position.
8->The loader (crash) door open signal was lost when the loader was not at the retracted position.
[Probable Fault Causes]
Loader retracted position signal is OFF.
[Remedies]
Move the loader to its retracted position.

1759 Loader/Robot retracted position
With the robot/loader auto ON/OFF specification, the loader retracted position was OFF.
While the interlocked device retracted position was OFF, the door closed or a door close command was executed.
While the interlocked device was not at the retracted position, a spindle/sub-spindle/M-tool rotation command was executed.
While the interlocked device was not at the retracted position, an axis movement/turret indexing command was executed.
[Code]
1->A spindle, sub-spindle, or M-tool rotation command was executed while the interlocked device was not at the retracted position.
The interlocked device retracted position signal was lost while spindle/sub-spindle speed exceeded the allowable speed.
2->An MA/MB rotation command was executed while the interlocked device was not at the retracted position.
Or, the interlocked device retracted position signal was lost while MA/MB speed exceeded the allowable speed.
3->The door closed while the loader was not at the retracted position, or a door close or ceiling door close command was executed.
With the robot/loader interface specification, any of the following occurred while the interlocked device was not at the retracted position:
(For non-ceiling door specifications) Front door is not open.
(For ceiling door specifications with interlock ON) Front door is closed and ceiling door is not open.
(For ceiling door specifications with interlock OFF, integrated ceiling door type)
Front door is open and ceiling door is not closed, or front door is closed and ceiling door is not open.
(For ceiling door specifications with interlock OFF, non-integrated ceiling door type)
Ceiling door is not open.
4->With the robot/loader interface specification, in the interlock ON state, an axis movement command was executed while the interlocked device was not at the retracted position. Or, the interlocked device moved away from the retracted position during axis movement.
5->With the robot/loader interface specification, a turret indexing command was executed while the interlocked device was not at the retracted position. Or, the interlocked device moved away from the retracted position during turret indexing.
6->With operation panel interference prevention specification, the operation panel left its fixed position while the interlocked device was not at the retracted position.
7->With the robot/loader interface specification, a tailstock quill advance/retract command was executed while the interlocked device was not at the retracted position.
8->With the robot/loader interface specification, a steady rest advance/retract command was executed while the interlocked device was not at the retracted position.
9->With the robot/loader interface specification, a chuck clamp/unclamp command was executed while the interlocked device was not at the retracted position.
10->With the robot/loader interface specification, a work puller advance/retract command was executed while the interlocked device was not at the retracted position.
11->A command was executed to move the Z-axis to the loader entry position while the loader was not at the retracted position.
12->A spindle rotation command was executed while the interlocked device was not at the retracted position.
13->A spindle stock unclamp command was executed while the synchronized peripheral device wait code was OFF.
14->The loader waiting position code was OFF during program execution.
15->Loader waiting position code is off during Door opened
code is on.Or,Door Open or Ceiling Door Open Command
execution.
[Remedies]
Move the interlocked device to the retracted position.

1760 M-tool M13/M14 switching
In automatic or MDI operation mode:
1) A reverse rotation command was executed during M-tool forward rotation.
2) A forward rotation command was executed during M-tool reverse rotation.
(Not related in manual mode)
[Target]System
[Code]1
[Probable Fault Causes]
1) Program error
2) Erroneous command in MDI mode.
Program example:
N100 M13 M-tool forward rotation
N102 M14 M-tool reverse rotation
Operation example:
In MDI operation mode, a command to rotate in the direction opposite to the current rotation direction was executed.
[Remedies]
N100 M13
N101 M12
N102 M14

1761 M-tool gear range disagreement
During M-tool rotation, the gear range command did not match the gear limit switch input.
[Probable Fault Causes]
1) Faulty EC input
2) Improperly adjusted gear confirmation limit switch.

1762 M-tool gear range command
An illegal M-tool gear range command value was designated according to the machine specifications.
[Probable Fault Causes]
Program error
Program example:
1) On a machine model with only 1 gear range for the M-tool spindle, an M-tool gear shift command was executed.
2) On a machine model with 2 gear ranges for the M-tool spindle, an M-tool gear shift command other than M241 or M242 was
executed.
[Remedies]
1) For machine models with only 1 gear range for the M-tool spindle, do not designate a gear shift command.
2) For machine models with 2 gear ranges for the M-tool spindle, designate M241 or M242.

1763 M-tool rotation command
An M-tool rotation command was executed when the M-tool spindle was not rotating or during M-tool spindle rotation
under M-tool spindle rotation OFF conditions.
[Code]
1->An M-tool rotation command was executed while the C-axis was not connected.
2->An M-tool rotation command was executed while the ATC tool (M-tool) was unclamped.
3->An M-tool rotation command was executed before the spindle locating pin insert confirmation answer was received.
Or, on ATC specifications, an M-tool rotation command was executed for a turret that cannot mount an M-tool.
Or, on ATC specifications, an M-tool rotation command was executed when an in-machine gauging sensor with a locating pin
was mounted on a turret with an M-tool mounted.
Or, when executing an ATC rotation command to execute M-tool orientation,
M-tool orientation failed because an in-machine gauging sensor with a locating pin was mounted on a turret with an M-tool mounted.
4->An M-tool rotation command was executed during spindle rotation.
5->An M-tool rotation command was executed when there was no tool clamp signal.
6->On H1 turret specifications, there was a tool clamp signal but no L-tool confirmation/input signal,
and an M-tool rotation command was executed when an L-tool or sensor was in the current tool.
7->On ATC specifications, an M-tool rotation command was executed while the M-tool was not in the clamped state.
8->The turret clamp signal was lost during M-tool rotation.
9->On ATC specification machine types, an M-tool rotation command was executed when the ATC tool (M-tool) did not exist
(no-tool signal was ON).
[OSP-P200L]
Concerning ATC specification machine type, the M-tool
rotation command is designated , when the ATC tool
(M-tool) is not exist(the no tool signal is on) or
actual tool data is not set.
10->On ATC specification machine types, the no-tool signal turned ON while the M-tool was rotating.
[OSP-P200L]
Concerning ATC specification machine type, the M-tool
rotation command is designated , when the ATC tool
(M-tool) is not exist(the no tool signal is on) or
actual tool data is not set.
11->On H1 turret specifications, while the M-tool was rotating, the M-tool spindle unclamp confirmation
command turned OFF.
12->An M-tool rotation command was executed with a specific tool selected.
13->Through-spindle air blow output was executed during M-tool rotation after the through-spindle coolant output turned OFF
and the parameter-set time elapsed.
[Probable Fault Causes]
1) Program error
2) Operation error
Program example:
N100 M109 C-axis disconnect
N101 M13 M-tool forward rotation
3) On ATC specifications, turrets on which an M-tool rotation command can be executed are fixed.
This alarm occurs when an M-tool rotation command is executed for a turret other than the designated ones.
Or, executing an M-tool rotation command is prohibited when an in-machine gauging sensor with a locating pin is mounted on a turret with an M-tool mounted.

1764 T command during M-tool rotation
A turret indexing command was executed during M-tool rotation.
[Probable Fault Causes]
1) Program error
2) Operation error
Program example:
N100 M13
N101 G41
N102 T010101
Operation example:
A turret indexing was commanded during M-tool rotation.

1765 M-tool orientation command
An M-tool orientation command (M229) was executed while the M-tool could not be oriented.
[Character-string]System
2->An orientation command was issued while the milling tool rotation command was being executed.
3->An orientation command was issued while the milling tool was in neutral.
6->An orientation command was issued while the milling tool was in polygon turning control mode.
[Probable Faulty Locations]
1) Program error
2) Operation error

1766 Milling tool overspeed
Actual speed of the milling tool exceeded 120[%] of the specified maximum speed.
[Probable Faulty Locations]
1) Faulty VAC resolver
2) Defective contact of the resolver cable.

1767 M-axis clutch connection error
M-axis clutch connection error
On the M-axis single-point clutch specification, when a milling tool rotation, orientation, or polygon turning command was issued,
hunting continued for 20 seconds or longer without receiving an engagement answer signal.
[Probable Faulty Locations]
1) Milling tool single-point clutch
2) Milling tool connection confirmation proximity switch

1768 Sub-spindle overspeed
During synchronized spindle and sub-spindle rotation, the sub-spindle commanded speed exceeded the commanded maximum speed or
the sub-spindle maximum allowable speed.
[Character-string] Coordinate system, C140, G141, or G142.
Hexadecimal value of the sub-spindle maximum speed.
[Probable Faulty Locations]
Program error
Program example:
G141
G50 S1000
G140
M151
M03 S1200
:
[Measures to Take]
Correct the program.
G141
G50 S1200
G140
M151
M03 S1200
:

1769 Sub-spindle orientation command
A sub-spindle orientation command was issued while the spindle and sub-spindle were in synchronized rotation.
[Object] System
[Code]
6->Spindle and sub-spindle are in synchronized rotation.
[Probable Faulty Locations] Program error
Program example:
: :
M151 G141
G141 M03 S100
M19 M19
: :

1770 Door interlock
While the door interlock was active and the door was open, an operation command was issued for spindle rotation, axis motion, turret index, milling tool rotation,
,
interlocked peripheral equipment operation, sub-spindle rotation, or top door open/close operation.
Or, a door open command was issued while any of the above commands was being executed.
For machines equipped with ATC, with door interlock type E specification, the front door was opened during ATC operation.
While the maintenance cover was open, an operation command was issued for spindle rotation, axis motion,
turret index, or milling tool spindle rotation.
[Character-string] Coordinate system: G140, G141, or G142.
[Code]
1->Spindle rotation
2->Milling tool spindle rotation
3->Axis motion
4->Turret index
5->Door interlock external input ON
6->Sub-spindle or transfer axis rotation
7->Headstock rotation
10->Top door open/close command was issued while the front door was not closed.
11->Loader door was opened while the spindle was rotating.
12->Loader door was opened while the milling tool was rotating.
13->Loader door was opened while an axis was moving.
14->Loader door was opened while the turret was indexing.
15->Loader door was opened while the ATC or parts catcher was operating.
16->High-pressure coolant ON command was issued while the door was not closed,
or door close signal was turned OFF during high-pressure coolant discharge.
17->In manual or MDI mode, a spindle rotation (including spindle orientation,
jog, external jog) command was issued without door close signal.
18->In manual or MDI mode, an axis motion command was issued without door close signal.
19->In manual or MDI mode, a turret index command was issued without door close signal.
20->In manual or MDI mode, a chuck open/close command was issued without door close signal.
21->In manual or MDI mode, a tailstock advance/retract command was issued without door close signal.
22->In manual or MDI mode, a coolant or
additional coolant 1 command was issued without door close signal.
23->In manual or MDI mode, an air blow command was issued without door close signal.
25->A coolant command (M08) (including pushbutton operation) was issued without door close signal,
or door close signal was turned OFF while coolant command was being executed.
26->A spindle orientation command was issued while the door was not closed, or door close signal was turned OFF during spindle orientation.
27->A spindle jog command was issued while the door was not closed, or door close signal was turned OFF during spindle jog.
28->Index chuck rotation command (M54) was issued while the door was not closed.
35->Front door close command was issued while the auto door open/close safety bumper switch was OFF.
36->Auto door open/close safety bumper switch turned OFF during front door close command.
37->During front auto door open/close control, a front door open command was issued when the front door closed end (CCC1C) and
reset operation switch (SAULK) were ON,
and front door closed end/ (SDRL/) was OFF.
38->On machines equipped with area sensor, front door open/close command was issued while the area sensor was OFF.
39->On machines equipped with area sensor, area sensor turned OFF during front door open/close operation.
41->With door interlock type E specification, interlock release switch was ON, and not in single block mode,
a rotation command exceeding the allowable maximum spindle speed was issued for spindle, milling tool, or sub-spindle.
42->Under the same condition as code 41, an axis motion command was issued.
43->Under the same condition as code 41, a turret index command was issued in MDI mode.
44->Chuck open/close command was issued while the door was not closed.
45->Door close signal was turned OFF during chuck open/close operation.
46->Tailstock advance/retract command was issued while the door was not closed.
47->Door close signal was turned OFF during tailstock advance/retract operation.
50->Front door was opened during ATC operation.
51->ATC pot operation was executed while the front door was open.
52->When door interlock was OFF and in single block mode of automatic operation, chuck open/close command
was issued while the front door was not closed.
53->When door interlock was OFF and in single block mode of automatic operation, front door close state was lost
during chuck open/close command execution.
54->When door interlock was OFF and in single block mode of automatic operation, tailstock advance/retract command
was issued while the front door was closed.
55->When door interlock was OFF and in single block mode of automatic operation, front door close state was lost
during tailstock advance/retract command execution.
56->When door interlock was OFF, the front door was not closed, and in non-single block mode of automatic operation,
a turret index command was issued.
57->When door interlock was OFF and the front door was not closed, a chuck open/close command was issued.
58->When door interlock was OFF, front door close state was lost during chuck open/close command execution.
59->When door interlock was OFF and the front door was not closed, a tailstock advance/retract command was issued.
60->When door interlock was OFF, front door close state was lost during tailstock advance/retract command execution.
61->When door interlock was OFF and the front door was not closed, a steadyrest advance/retract command was issued.
62->When door interlock was OFF, front door close state was lost during steadyrest advance/retract command execution.
63->When door interlock was OFF and the front door was not closed, a steadyrest clamp/unclamp command was issued.
64->When door interlock was OFF, front door close state was lost during steadyrest clamp/unclamp command execution.
65->Door close state was lost during machine operation in automatic operation mode with interlock OFF.
66->Turret index was commanded by pressing the turret index pushbutton on the sub-operation panel while the front door was not closed.
67->Front door close command was issued while the spindle front adjustment small door was not closed.
68->During front door open operation, the spindle front small door was not in closed state.
69->Tailstock connection switch
70->Steadyrest advance/retract
71->Parts catcher advance/retract
72->Tool setter advance/retract
73->Chuck open/close
74->Tailstock advance/retract
75->Steadyrest clamp/unclamp
76->A spindle rotation command exceeding the allowable maximum spindle speed was issued while the top door was not closed.
(*Machine system parameter* No. 4 Door interlock No. 1 Allowable spindle speed when 1st door is open)
77->While the top door was not closed, the actual spindle speed exceeded the allowable spindle speed.
Or, top door open command was issued while the actual spindle speed exceeded the allowable spindle speed.
78->While the top door was not closed, a top door open/close command was issued from the loader.
79->With CE-specification robot/loader interface specification, M91 command was issued from the machine while the robot/loader door
interlock release enable signal was OFF.
80->With CE-specification robot/loader interface specification, robot/loader front door open command signal was ON while the robot/loader door
interlock release enable signal was OFF.
81->Front door close state was lost during top door open/close operation.
82->A spindle rotation command was issued when the area sensor input was OFF while the door was not closed.
Or, area sensor input turned OFF during spindle rotation while the door was not closed.
83->On machines equipped with area sensor, area sensor input turned OFF while the door was not closed and the machine was not at home position.
84->A rotation command exceeding the allowable spindle speed was issued while the door was open and the additional interlock release switch was ON.
85->On stand-alone operation specification, both the front door and the top door were open while the loader was operating and machine interlock was OFF.
86->With CE and ATC specifications, ATC operation was executed while the front door or magazine door was unlocked in production/setup mode.
87->Tailstock connection switch
88->Steadyrest connection switch
89->Buffer table up/down command was issued when the door interlock was ON and the front door was not closed.
Or, front door close state was lost during execution of buffer table up/down command.
90->Air blow command was issued when the door interlock was ON and the front door was not closed.
Or, front door close state was lost during execution of air blow command.
92->Buffer table fixing pin insert/extract command was issued when the door interlock was ON and the front door was not closed.
Or, front door close state was lost during execution of buffer table fixing pin insert/extract command.
93->Area sensor signal was turned OFF when the door interlock was ON and the front door was not closed.
Or, the loader started operating when the area sensor signal was OFF.
94->Area sensor signal was turned OFF while the loader was operating by pushbutton command when the front door was not closed.
95->Chuck operation command was issued when the front door was open, door interlock was ON, and the [Auto/Manual] selector switch was set to manual.
96->On H1 turret specification, milling tool orientation command in manual tool change mode
was issued while the front door was not closed.
97->During door close operation, ON time of the door close PS exceeded the parameter set time.
98->When a door open command was issued, door open time exceeded the parameter set time.
99->Air motor operation command was issued when the door was not closed and the door interlock was ON.
100->Workpiece cover up/down command was issued while the door was not closed.
101->Touch setter advance/retract.
102->Grinding wheel rotation command was issued while the door was not closed.
Or, door close signal was turned OFF during grinding wheel rotation command execution.
103->Grinding wheel dresser rotation command was issued while the door was not closed.
Or, door close signal was turned OFF during grinding wheel dresser rotation command execution.
104->On machines equipped with area sensor, front door close command was issued while the area sensor was OFF.
105->On machine with door area sensor specifications, the door area sensor turned OFF while the front door close command was being executed.
106->The unloader command was issued with the door open.
107->The back-up roller up/down command was issued with the door open, or the door was opened during back-up roller
up/down operation.
108->The work rest advance/retract command was issued when the door was not closed.
109->The roller stop move command was issued when the door was not closed.
110->The workpiece discharge command was issued with the door open.
111->Workpiece conveyor disconnect was executed on a CE specification machine with the front door open.
112->The tailstock support command was issued with the door open.

113->The spindle center work command was issued with the door open.

114->When door interlock ON and a front door were not
closes, Work-out unit hand open/close command was
performed.
115->When front door were not closes, work rest up/down
command was issued. Or in work rest up/down command
practice,it became the condition that a front door
is not close.
116->When a front door was not closed, special tool ON
command was issued. Or in special tool ON command
practice,it became the condition that a front door
was not closed.
117->When front door were not closes, work rest
eject/unload/retract command was issued.
Or in work rest eject/unload/retract command practice,
it became the condition that a front door is not close.
118->Machine set up switch is OFF when the door is not closed
119->AUTO OPERATION or MDI OPERATION mode selection
when the door is not closed
[Probable Fault Cause]
1) Operation error
2) Defective door close confirmation LS, or improper dog position.
3) The door is caught.
[Remedy]
1) Opening the door is prohibited while an axis is rotating or moving.
2) Replace the defective confirmation switch. When closing the door, adjust the dog to ensure proper operation of the confirmation switch.
3) Remove foreign matter caught in the door.

1771 Door open/close limit switch error
An error occurred in the limit switches used to confirm the open/close status of the front door and ceiling door.
[Code]
None->On door interlock type S specifications, the front door open/close confirmation limit switch is faulty.
1->On door interlock type S specifications, the ceiling door open/close confirmation limit switch is faulty.
3->On mechanical door specifications, the front door open/close confirmation limit switch is faulty.
[Probable Fault Cause]
When there is no code, the front door open/close confirmation limit switch position is improper or defective.
1) The ceiling door open/close confirmation limit switch position is improper or defective.
2) On mechanical door specifications, the front door open/close confirmation limit switch is defective.
[Remedy]
1) Check the limit switch position and replace defective limit switches.
2) On mechanical door specifications, replace the defective limit switch.

1772 Door open/close condition
The ceiling door open/close command was issued when the front door was not closed.
Or, the front door open/close command was issued when the ceiling door was not closed.
[Code]
1->The ceiling door open/close command was issued when the front door was not closed.
2->The front door open/close command was issued when the ceiling door was not closed.
3->The ceiling door open command was issued while an axis was rotating.
4->The ceiling door open command was issued while an axis was moving.
5->The ceiling door open command was issued while the turret was indexing.
6->The front door open command was issued while the spindle was rotating.
7->The front door open command was issued while an axis was moving.
8->The front door open command was issued while the turret was indexing.
9->The ceiling door open command was issued while the milling tool was rotating.
10->The front door open command was issued while the milling tool was rotating.
11->The right door open/close command was issued when the operation panel was not at the retract end.
13->The ceiling door open command was issued when the loader continuous operation signal was ON and the front door was not closed.
14->The door open/close command was issued while the door area sensor was in a failure state.
Or, a door area sensor failure occurred during door open/close command execution.
15->The front door open/close command was issued when different operation modes were selected on the left and right machines.
16->The front door open/close command was issued when the door unlock permit signal from the loader interface was OFF.
17->Front door open/close commands in different directions were issued on the left and right machines.
18->The front door close command was issued when the pedal was advanced,
or the pedal advance command was issued when the front door was closed.
19->The front door open/close command was issued when the ceiling door was not open.
20->The door close command was issued when the ACC table was not lowered.
21->The door close command was issued during ACC cycle start.
22->On NC door specifications, the door open/close pulse handle parameter of the machine user parameters is set to ON.
23->The door enable key switch on the machine panel is not ON.
24->Both the front door and the ceiling door are open.
25->The front door open/close command was issued with the front door window open.
26->In dual palm door open/close operations, it was let go
off either button during open/close the door.
27->Safety guard is open.

1773 Door interlock reset error
On CE specification machines, after the electromagnetic switch in the high-precision VAC and servo amplifier was tripped due to door open,
the following conditions were not satisfied when resetting via the reset pushbutton or door close to turn ON the electromagnetic switch.
1) A feed axis position (including the spindle during C-axis control) shifted by 0.5 [mm]
or more from the position where the electromagnetic switch was tripped.
2) During orientation stop, synchronous rotation, or polygon turning, the spindle or M-tool spindle axis position shifted by
0.36 deg (equivalent to 0.5 [mm]) or more.
[Target] System, Axis, Spindle, M-tool spindle

1774 Touch setter
The sensor head advance or retract command was issued while sensor head
advance/retract was prohibited.
Or, advance prohibited status occurred while the sensor head was advancing.
Sensor head advance/retract—-M117/M118
[Target] System
[Code]
1->The sensor head advance/retract command was issued when the following spindle stop conditions were not satisfied:
Spindle zero speed signal is present.
Spindle stop in progress signal is present.
No spindle rotation command.
2->On shaft work specifications, the advance/retract command was issued when the tailstock axis was not at the retract end.
3->The advance/retract command was issued when the chuck was not unchucked.
4->The advance/retract command was issued when the interlocked device was not at the retract end.
5->The advance/retract command was issued when the turret was not at the Z-axis stroke limit.
6->A workpiece present signal was detected while the sensor head was advancing.
7->The advance/retract command was issued when the tool setter arm was not at the advance end.
8->On robot specifications, the advance/retract command was issued when the robot in-machine signal was present.
9->On loader specifications, the advance/retract command was issued when the loader in-machine signal was present.
10->The advance/retract command was issued when the special steadyrest was not at the retract end.
11->The advance/retract command was issued when the temporary stand was not at the lower end.
12->The advance/retract command was issued when the parts catcher was not at the retract end.
13->The advance/retract command was issued when the loader was not at the retract end.
14->The C-axis is rotating.
15->The sub-spindle chuck is not open.
16->The sub-spindle W-axis is not at the stroke end limit.
17->The door is not closed.
18->The M-tool spindle is rotating.
19->The steadyrest is not at the Z-axis advance limit, nor at the X-axis advance limit.
Towing the steadyrest causes interference with the touch setter zone.
20->The workpiece pusher is not at the retract end.
21->The touch setter advance command was issued when the deburring unit was not at the retract end.
22->The touch setter advance command was issued when the temporary stand was not at the lower end.
23->The advance command was issued when the spindle was not within a specific position (angle).
24->On lower turret rotation range special specifications, the touch setter advance/retract command was issued when the lower turret index position was not
within the lower turret rotation range.
25->The touch setter advance command was issued when the deburring unit was not at the retract end.
26->The sensor head advance/retract command was issued when the ZA-axis or ZB-axis was in the interference zone.
27->The touch setter advance command was issued when the touch setter was not at the retract end.
28->The tool breakage sensor advance command was issued while the tool breakage detection sensor
was in the advance prohibited zone.
29->The advance/retract command was issued while coolant was discharging.
30->The advance/retract command was issued when the spindle was not in the orientation complete state.
31->The sensor head advance command was issued when the unloader slide was not at the retract position or unload position.
32->The sensor head advance command was issued when the turret was not at the XA-axis or XB-axis stroke end.
33->The touch setter advance command was issued when the coil protector unit
was not at the retract end.
34->In dual palm touch setter advance/retract operations,
it was let go off either button during advance/retract
the sensor head.
[Probable Fault Cause]
1) EC input signal for parts catcher retract end (I/O check No. 51 Bit 9 (iPCBA))
2) Program error
Program example:
M03 S5000
M117
3) Operation error
Operation example:
Manually moving the turret when it is not at the Z-axis stroke limit.

1775 Touch setter limit
The touch setter arm is not at the retract position during spindle, M-axis, or C-axis rotation.
Or, the touch setter arm is not at the retract position while the turret is moving or indexing outside of manual or manual intervention mode.
Or, the touch setter arm is not at the advance position during touch setter cycle execution.
[Target] System
[Code]
1->The touch setter arm is not at the retract position during spindle rotation.
2->The touch setter arm is not at the retract position during M-tool spindle rotation.

3->Touch setter arm is not at the retracted position during C-axis rotation.
4->Touch setter arm is not at the retracted position during turret movement.
5->Touch setter arm is not at the retracted position during turret indexing.
6->Touch setter arm is not at the retracted position when W-axis is not at the positive limit.
7->Touch setter arm is not at the retracted position when the spindle chuck is not open.
8->Touch setter arm is not at the retracted position when the sub-spindle chuck is not open.
9->Touch setter arm is not at the retracted position when the door is not closed.
10->Touch setter arm is not at the advanced position during touch setter cycle execution.
11->Touch setter arm is not at the retracted position when the burr remover is not at the retract end.
12->Touch setter arm is not at the retracted position during coolant discharge.
13->Touch setter advance/retract signals turned ON at the same time.
14->Touch setter left/right retract position signals
turned ON at the same time.
15->The touch setter cover open/close signals turned ON at
the same time.
[Probable Fault Cause]
1) Abnormal EC input signal for the sensor probe position. (I/O check
No.26 Bit E (iSHRTC) or Bit F (iSHADC))
2) Programming error: The gauging subprogram was called without the M137 command.
Program example:
M117
CALL OTFRD
[Measures to Take]
1) Check the program.
2) If an alarm occurs outside the gauging cycle, check the EC input signals.

1776 Sensor probe advance
A spindle rotation command (M03, M04) or M-tool spindle rotation command (M13, M14) was executed
while the A-side sensor probe or B-side sensor probe was not at the retract position.
[Object] System
[Code]
1->Spindle rotation command (M03, M04) was executed while the sensor probe was not at the retract position.
2->M-tool spindle rotation command (M13, M14) was executed while the sensor probe was not at the retract position.
3->Axis move command was executed while the sensor probe was not at the retract position.
Or, the sensor probe retract position signal was lost during axis movement.
4->Turret indexing command was executed while the sensor probe was not at the retract position.
Or, the sensor probe retract position signal was lost during turret indexing.
5->Chuck open/close command was executed while the sensor probe was not at the retract position.
6->Steadyrest open/close command was executed while the sensor probe was not at the retract position.
7->The tool breakage sensor retract position signal was lost during spindle rotation.
Or, spindle rotation command was executed while the tool breakage sensor was not at the retract position.
8->The tool breakage sensor retract position signal was lost during M-axis rotation.
Or, M-axis rotation command was executed while the tool breakage sensor was not at the retract position.
9->The tool breakage sensor retract position signal was lost during feed axis movement or C-axis movement.
Or, feed axis move or C-axis move command was executed while the tool breakage sensor was not at the retract position.
10->The tool breakage sensor retract position signal was lost during turret indexing.
Or, turret indexing command was executed while the tool breakage sensor was not at the retract position.
11->The tool breakage sensor retract position signal was lost while the door was not closed.
Or, door open command was executed while the tool breakage sensor was not at the retract position.
12->The tool breakage sensor retract position signal was lost during coolant discharge.
Or, coolant discharge command was executed while the tool breakage sensor was not at the retract position.
[Probable Fault Cause]
1) Check the EC input signals for sensor probe position:
I/O check No.26 Bit E (iSHRTC) – Retract end.
I/O check No.26 Bit F (iSHADC) - Advance end.
2) Programming error
Program example:
G13
M117
:
M03M41S100
:
M118
:
[Measures to Take]
1) Retract the sensor probe to the retract position from the advanced position,
then execute the spindle or M-tool spindle rotation command.
G13
M117
:
M118
M03M41S100
:

1777 ATC arm position
Faulty ATC arm swing position confirmation input or positioning position confirmation input.
[Code] XX
10->Turret index command was executed when the ATC arm swing position confirmation input or positioning position confirmation input was at the turret interference position.
On the LB35II-M/ATC-Y and LU45-M/ATC-Y,
the turret can be indexed at the EA swing A position or EA swing C position. On the LB15II-M/ATC-Y,
the turret can be indexed at the EAMG position or EA standby position.
11->All swing position confirmation inputs of the tool change arm are in the OFF state after power is turned ON for the first time
after control software installation.
For ATC units with NC ATC specifications, this alarm always occurs
upon the first power-on after control software installation.
This alarm will clear only after the tool change arm swing position parameters are set on the System Parameter Setting screen in Parameter Setting mode
and power is cycled.

1778 ATC turret dummy tool missing
Axis move command was executed when no dummy tool was set in the ATC turret.
[Code]
1->Both L-tool and M-tool are empty.
2->L-tool is not mounted.
3->M-tool is not mounted.
[Probable Fault Cause]
1) Program error
2) Operation error
[Measures to Take] Mount a dummy tool.
[Related Specifications]
ATC

1779 Manual tool change operation
The M70 manual tool clamp/unclamp command was executed when the turret indexing status was in the manual tool clamp/unclamp prohibited state.
[Code]
1->The M70 command was executed in a turret indexing status where manual tool clamp/unclamp is prohibited.
2->During M70 command execution, the turret indexing status entered the manual tool clamp/unclamp prohibited state.
[Probable Fault Cause]
On the LB15II/LB35II-M/ATC-Y or LU45-M/ATC-Y, the manual tool clamp/unclamp position for turret T1
is the cutting position indexing status of T1. The manual tool clamp/unclamp position for other turrets is the ATC
indexing position of the respective turret.
If the M70 command is executed when the turret is not in the manual tool clamp/unclamp indexing position, this alarm
occurs.

1780 ATC system mode prohibited
The ATC system mode parameter was set to ON in an operation mode other than manual mode.

1781 Loader/robot interference
[Code]
3->While the robot/loader was inside the machine, the interference detection switch signal mounted on the hand
/loader turned OFF due to mutual interference with the machine, or the robot/loader hand vertical
position confirmation signal turned OFF.
[Object] System
[Probable Causes]
1) Incorrect adjustment of the headstock loading/unloading position.
2) Faulty interference detection confirmation switch.
3) Faulty hand vertical position confirmation switch.
[Measures]
1) Check the headstock loading/unloading set position.
2) Replace the interference detection confirmation switch.
3) Replace the hand vertical position confirmation switch.

1782 Power sequence fault
[Code]
3->An error occurred during the power ON/OFF sequence.
[Probable Fault Cause]
Faulty relay control circuit.
[Measures to Take]
Replace the emergency stop delay timer relay or axis operation ON relay.

1783 Turret unclamp time over
Unclamp operation failed, or unclamp time was too long.
[Object] Axis
[Code]
1->Turret unclamp confirmation switch did not turn ON.
2->On a single-motor composite turret, the turret rotation clutch connection confirmation switch did not turn ON.
3->For H1 turret or H2 turret, the B-axis brake OFF confirmation switch did not turn ON.
[Probable Fault Cause]
1) Improper unclamp limit switch adjustment.
2) Hydraulic pressure is too low.
3) Solenoid valve operation fault.
4) B-axis brake fault.

1784 Turret clamp time over
Clamp operation failed, or clamp time was too long.
[Object] Axis
[Code]
1->Turret clamp confirmation switch did not turn ON.
2->Turret positioning was not completed.
3->B-axis brake ON confirmation switch did not turn ON.
[Probable Fault Cause]
1) Improper clamp limit switch adjustment.
2) Hydraulic pressure is too low.
3) Solenoid valve operation fault.
4) Incorrect encoder offset value setting.
5) Incorrect positioning position value setting.
6) B-axis brake operation fault.

1785 NC parameter data transfer error
Error has occurred in transferring NC parameter data.
[Code]
3->In the case of Magazine tool ready cycle spcification,
error has occurred in transferring NC parameter data.

1786 Coolant unit error
<High-pressure coolant specifications>
High-pressure coolant error input (contact B) signal turned OFF.
<Centralized coolant specifications>
Both upper limit and lower limit float switch signals turned OFF.
[Code]
1->Centralized coolant specifications: Both upper limit and lower limit float switch signals turned OFF.
2->Centralized coolant specifications: Coolant error input signal turned OFF.
3->High-pressure coolant specifications (CE mark): Coolant error input (contact B)
signal stayed OFF for 5 seconds or more.
4->Separate coolant tank specifications: Coolant pump error input signal turned ON.
5->Separate coolant tank specifications: Overflow input signal turned ON.
6->High-pressure coolant specifications: High-pressure coolant pressure switch did not turn ON within 1 second after starting the high-pressure coolant filter pump.
7->Coolant purification specifications: Dirty tank upper limit input signal stayed OFF for 2 seconds or more.
8->Coolant purification specifications: Main tank upper limit input signal stayed OFF for 2 seconds or more.
9->High-pressure coolant specifications: High-pressure coolant unit error (contact B) input signal turned OFF.
10->For ejector drill specifications: Separate coolant tank lower limit signal turned OFF.
11->High-pressure coolant specifications: Coolant level in the high-pressure coolant unit is low.
12->High-pressure coolant specifications: Filter of the high-pressure coolant unit is clogged.
13->High-pressure coolant command was executed while the coolant system was in an error state.
14->The coolant level signal (iCOL/) kept OFF.
15->The coolant level 2 signal (iCOL2/) kept OFF.

1787 Door open/close answerback
During door open/close command execution, after the open/close monitoring time set in the machine system parameters
has elapsed, the command and status do not match, and no door open/close answerback signal is present.
[Code]
1->No front door open confirmation signal.
2->No front door close confirmation signal.
3->No ceiling door open confirmation signal.
4->No ceiling door close confirmation signal.
[Probable Fault Cause]
1) Front door or ceiling door operation fault.
2) Faulty confirmation limit switch for front door or ceiling door.
3) Front door or ceiling door is caught.
[Measures to Take]
1) Adjust the door so that it can operate smoothly.
2) Adjust the limit switch so that it operates properly, or replace it.
3) Remove any trapped object.
[Related Functions]
Auto door open/close
Ceiling door

1788 Cover interlock
In auto mode or MDI mode, the manual side cover is not closed.
During manual interrupt operation, when the spindle is rotating, the manual side cover is not closed.
The reference slide cover for in-machine gauging is not closed.
[Code]
1->In auto or MDI mode, when the reference slide cover for in-machine gauging was not closed,
an axis movement command was executed when a tool other than the sensor was indexed to the cutting position.
2->A spindle rotation command was executed when the chuck open/close limit switch adjustment door was open.
Or, the chuck open/close limit switch adjustment door opened during spindle rotation.
3->An ATC operation was executed when the ATC maintenance cover was not closed.
Or, the maintenance cover closed signal was lost during ATC operation.
4->A spindle, M-tool spindle, or feed axis movement command was executed when the ATC maintenance cover and the ATC shutter door were not closed.
Or, the closed signal of the ATC maintenance cover and the ATC shutter door was lost during spindle rotation, M-tool spindle rotation, or axis movement.
5->A spindle rotation command was executed when the loader safety cover was not closed.
Or, the loader safety cover closed signal was lost during spindle rotation.
6->The turret entered the ceiling door interference area when the ceiling door was not closed.
Or, the ceiling door closed signal was lost while the turret was inside the ceiling door interference area.
7->The magazine cleaning cover is not closed.

1789 Steady rest interlock
XB or ZB axis movement was executed when the steady rest was not unclamped.
Steady rest advance/retract command was executed when the steady rest was not unclamped.
Steady rest command was executed during spindle rotation.
Spindle rotation command was executed when the steady rest was closed and not at the advance end.
Steady rest advance end position signal was lost while the steady rest was closed during spindle rotation.
[Probable Fault Cause]
[Code]
1->For the steady rest mounted on the lower carriage or lower turret, an XB or ZB axis movement command was executed when the steady rest was not unclamped.
2->Steady rest advance/retract command was executed when the telescopic steady rest was not unclamped.
3->Steady rest command was executed during spindle rotation.
4->Spindle rotation command was executed when the steady rest (telescopic type) mounted on the lower carriage was closed and not at the advance end.
Or, the steady rest (telescopic type) closed and advance end signal was lost during spindle rotation.
7->Steady rest advance/retract command was executed when the steady rest valid/invalid selector switch was set to invalid.
8->Steady rest advance/retract command was executed when the steady rest was not clamped.
9->Steady rest close command was executed when the steady rest was not clamped.
11->Turret M66 command was executed when the steady rest was mounted on the lower turret.
21->XA/ZA/ZC, Y-axis rotation command was executed for the XA-turret or A-turret steady rest when the steady rest open code was OFF.
22->W-axis movement command was executed when the steady rest was not open.
31->Upper turret M66 command was executed when the steady rest was mounted on the upper turret.
41->The loader issued the lower turret home position command when the steady rest mounted on the lower turret was not unclamped.
42->Turret index command was executed when the steady rest mounted on the lower turret was not closed.
43->Steady rest command was executed when the steady rest mounted on the lower turret was not indexed in position.
44->Turret index command was executed when the XB-axis was not at the positive limit for the steady rest mounted on the lower turret.
45->Steady rest open command was executed while the steady rest was locked.
46->Steady rest lock command was executed while the steady rest was not closed.
47->Steady rest unlock command was executed during spindle rotation.
48->Turret index command was executed for B-turret mounted with steady rest when the steady rest valid switch was OFF.
49->Steady rest extend command was executed when the tailstock was not extended.
50->Tailstock retract command was executed when the steady rest was not at the retract end.
51->Steady rest (W-axis) movement command was executed when the X-axis was not at the positive travel limit.
52->ZB/W turret NC steady rest movement command was executed when the steady rest open code was OFF.
53->At the time of manual interrupt mode, while main spindle
rotating the front door became not closed status and the
steady rest became not closed status.

1790 Bar feeder not ready
During interlock ON, the "interlocking equipment/spindle interlock input" (spindle rotation enable) signal was OFF during spindle rotation; or, during interlock ON, when a spindle rotation command was executed, the "interlocking equipment/spindle interlock input" (spindle rotation enable) signal was OFF.

1791 Bar feeder advance/retract command
When the M92/M93 command was executed, the status did not match the set chuck status.
1->Bar feeder advance command (M93) was executed when the chuck was not unclamped.
2->Bar feeder retract command (M92) was executed when the chuck was not unclamped.
3->Bar feeder retract command (M92) was executed when the chuck was not clamped.
4->Bar feeder advance command (M93) was executed when the door close limit switch was OFF.
5->Bar feeder advance command (M93) was executed when the bar feeder ready signal was OFF.
[Probable Fault Cause]
1) Programming error
2) Chuck operation error
3) Chuck open/close limit switch fault.

1792 Turret index interlock
[Probable Fault Cause]
For special turret indexing specifications, a turret index command was executed when the turret indexing conditions were not satisfied.
Turret index command was executed within the turret index inhibit area.
[Code]
5->Turret index command was executed within the turret index inhibit area.
Entered the turret index inhibit area during turret indexing.
6->Turret index command was executed when the parameter for the turret indexing allowable range was set incorrectly.
7->Turret index command was executed while indexing the turret outside the turret indexing range.
Entered the turret index inhibit area during turret indexing.
9->A-turret index command (T code) was executed when the B-turret was not at the positive limit on the X-axis and Z-axis.
10->Lower turret has steady rest special specification, and index command was executed when turret indexing was inhibited by parameter setting.
14->B-turret index command was executed when the work rest table was not at the lower limit.
Or, the work rest table lower limit signal was lost during B-turret indexing.
15->B-turret index command was executed when the workpiece transfer unit was not at the retract position.
16->Tool index command was executed when the ZB-axis was not within the indexing range.
17->For lower turret with steady rest special specification, B-turret index command (T code) was executed when the steady rest valid/invalid selector switch was set to invalid.
18->Lower turret index command was executed when the lower turret index interlock parameter was set.
19->B-turret index command was executed when the W-axis was not at the positive travel limit.
20->Turret Index Command is issued;when ZA axis is not at
Index position.
[Probable Fault Cause]
1) Operation error

1793 Side cover interlock
[Code]
1->Side cover was not closed in auto mode or MDI mode.
2->In manual interrupt mode, side cover closed signal was lost during spindle rotation,
or spindle rotation command was executed when the side cover was not closed.
3->Turret index was executed using the turret index pushbutton on the main operation panel when the side cover was not closed.
4->Spindle rotation or axis movement was manually operated when the side cover was not closed.
5->Turret index was executed using the turret index pushbutton on the sub operation panel when the door interlock was ON and the side cover was not closed.
6->Spindle rotation command, M-axis rotation command, or C-axis rotation command was executed when the side cover was not closed.
Or, side cover closed signal was lost during spindle rotation, M-axis rotation, or C-axis rotation.
7->Axis movement command was executed when the side cover was not closed.
Or, side cover closed signal was lost during axis movement.
8->Turret index command was executed when the side cover was not closed.
Or, side cover closed signal was lost during turret indexing.
9->Side cover was not closed during NC operation.
NC was operated when the side cover was not closed.
10->Turret index command was executed using the turret index pushbutton on the sub operation panel when the left/right side cover was not closed.

1794 Rear cover interlock
[Code]
1->Rear cover closed signal was lost in auto mode or MDI mode.
2->In manual interrupt mode, rear cover closed signal was lost during spindle rotation.
Or, spindle rotation command was executed when the rear cover was not closed.
3->Turret index command was executed using the turret index pushbutton on the main operation panel when the rear cover was not closed.
4->Main spindle rotation or axis movement was executed when the rear cover was not closed.
5->Turret index command was executed using the turret index pushbutton on the sub operation panel when the rear cover was not closed.

1795 Side cover open/close limit switch failure
[Code]
1->For mechanical lock side cover specification, the switch confirmation input of the side cover mechanical lock open/close is faulty.
(Both open signal and close signal are ON).

1796 Turret index clutch operation failure
For single-motor compound turret specification, after the turret clamp output, the turret index clutch engagement confirmation was not OFF after the turret clamp confirmation monitoring time had elapsed.
Or, in manual mode or MDI mode during M-tool spindle rotation, the index clutch engagement confirmation OFF signal continued for longer than the turret clamp confirmation monitoring time.

1797 Mode switch failure
Switch input signals continuously remained all ON or all OFF.
[Code]
None->Production mode/setup mode/test mode switches were all OFF for more than 0.5 s.
1->Interlock ON/OFF switch input signals were all ON or all OFF for more than 0.5 s.
2->Steady rest valid/invalid selector switch input signals were all ON or all OFF for more than 0.5 s.
3->Loader interlock/teach/OFF switch input signals were all ON or all OFF for more than 0.5 s.
4->Manual interrupt ON/OFF/inhibit mode switches were all OFF for more than 0.5 s.
5->Chuck cylinder selector switch input signals were all ON or all OFF for more than 0.5 s.
6->Chuck pedal selector switch input signals were all ON or all OFF for more than 0.5 s.
7->Two or more operation mode switch inputs were ON at the same time, or all three signals were OFF for more than 1 s.
8->Unloader interlock ON/OFF switch input signals were all ON or all OFF for more than 0.5 s.
9->Chuck type selector switch input signals were all ON or all OFF for more than 0.5 s.
10->Chuck process selector switch input signals were all ON or all OFF for more than 0.5 s.
11->Unloader ON/OFF switch input signals were all ON or all OFF for more than 0.5 s.
12->B-turret index ON/OFF input signals were all ON or all OFF for more than 0.5 s.
13->Bar feeder loop ON/OFF input signals were all ON or all OFF for more than 0.5 s.
14->Specified tool ON/OFF input signals were all ON or all OFF for more than 0.5 s.
15->In adjustment operation mode, the machine is not in a status ready for adjustment operation (manual mode, loader OFF, manual door closed).
16->The chuck unclamp ON/OFF switch input signal remained
ON or OFF for 0.5 s or longer.
[Probable Fault Cause]
Defective switch, incorrect wiring, or switch operation error.
[Measures to Take]
Operate the switch again.
Check the switch input signal.
Replace the defective switch.

1798 Steady rest clamp empty
[Code]
1->With the steady rest clamp confirmation specification, the steady rest clamped empty (during steady rest close command,
open end/close end confirmation was ON and open confirmation was ON).

1799 Sensor cover 0
An attempt was made to open or close the sensor cover when it
cannot be opened or closed.
When the sensor cover was not closed,
a spindle rotation command (M03, M04) or
M-tool rotation command (M13, M14) was executed.
[Code]
1->The sensor cover open/close command was designated
when the spindle stop request condition
was not satisfied:
2->The sensor cover open/close command was designated
when the M-tool spindle was rotating:
3->The sensor cover open/close command was designated
when the C-axis was rotating.
4->The sensor cover open/close command was designated
when the turret was not at the Z-axis
stroke end.
5->The tool breakage sensor was not at the closed
position when the spindle was rotating.
Or, a spindle rotation command was designated when the tool breakage sensor cover was not at the closed position.
6->The tool breakage sensor cover was not at the closed
position when the M-spindle was rotating.
Or, an M-spindle rotation command was designated when the tool breakage sensor cover was not at the closed position.
7->The tool breakage sensor cover was not at the closed position
during axis movement or C-axis movement.
Or, an axis movement or C-axis movement command was designated
when the tool breakage sensor cover was not at the closed
position.
8->The tool breakage sensor cover was not at the closed
position during turret indexing.
Or, a turret indexing command was designated when the tool breakage sensor cover was not at the closed position.