
APPENDIX
B–63835EN/03
A. ALARM LIST
539
Number ContentsMessage
176 IMPROPER G–CODE IN G107
(M series)
Any of the following G codes which cannot be specified in the cylindrical
interpolation mode was specified.
1) G codes for positioning: G28,, G73, G74, G76, G81 – G89,
including the codes specifying the rapid traverse cycle
2) G codes for setting a coordinate system: G52,G92,
3) G code for selecting coordinate system: G53 G54–G59
Modify the program.
IMPROPER G–CODE IN G107
(T series)
Any of the following G codes which cannot be specified in the cylindrical
interpolation mode was specified.
1) G codes for positioning: G28, G76, G81 – G89, including the
codes specifying the rapid traverse cycle
2) G codes for setting a coordinate system: G50, G52
3) G code for selecting coordinate system: G53 G54–G59
Modify the program.
181 FORMAT ERROR IN G81 BLOCK
(Hobbing machine, EGB) (M series)
G81 block format error (hobbing machine)
1) T (number of teeth) has not been instructed.
2) Data outside the command range was instructed by either T, L, Q or
P.
3) An overflow occurred in synchronization coefficient calculation.
Modify the program.
182 G81 NOT COMMANDED
(Hobbing machine) (M series)
G83 (C axis servo lag quantity offset) was instructed though synchro-
nization by G81 has not been instructed. Correct the program. (hobbing
machine)
183 DUPLICATE G83 (COMMANDS)
(Hobbing machine) (M series)
G83 was instructed before canceled by G82 after compensating for the
C axis servo lag quantity by G83. (hobbing machine)
184 ILLEGAL COMMAND IN G81
(Hobbing machine, EGB) (M series)
A command not to be instructed during synchronization by G81 was
instructed. (hobbing machine)
1) A C axis command by G00, G27, G28, G29, G30, etc. was
instructed.
2) Inch/Metric switching by G20, G21 was instructed.
185 RETURN TO REFERENCE POINT
(Hobbing machine) (M series)
G81 was instructed without performing reference position return after
power on or emergency stop. (hobbing machine) Perform reference
position return.
186 PARAMETER SETTING ERROR
(Hobbing machine, EGB) (M series)
Parameter error regarding G81 (hobbing machine)
1) The C axis has not been set to be a rotary axis.
2) A hob axis and position coder gear ratio setting error
Modify the parameter.
187 HOB COMMAND IS NOT ALLOWED Error in the modal state when G81.4 or G81 is specified
1. The canned cycle mode (G81 to G89) is set.
2. The thread cutting mode is set.
3. The C–axis is under synchronous, composite, or superimposed
control.
190 ILLEGAL AXIS SELECT In the constant surface speed control, the axis specification is wrong.
(See parameter No. 3770.) The specified axis command (P) contains an
illegal value.
Correct the program.
194 SPINDLE COMMAND IN
SYNCHRO–MODE
A contour control mode, spindle positioning (Cs–axis control) mode, or
rigid tapping mode was specified during the serial spindle synchronous
control mode. Correct the program so that the serial spindle synchro-
nous control mode is released in advance.