Plc Interruption Impossible; Restart Posn Return Disabled; Zero Point Return Interruption; Excessive No. Of Reverse Block - Mitsubishi Electric M800 Series Manual

M800/M80/E80/C80 Series Alarm/Parameter Manual
1 Operation Errors (M)
M01

PLC interruption impossible

Details
After the cycle start, the "PLC interrupt" signal was turned ON during buffer correction, program restart, arbi-
trary reverse run, tool retract and return, high-speed high-accuracy control II, NURBS interpolation or single
block stop at the middle point of G28/G29/G30.
Remedy
By turning OFF the "PLC interrupt" signal, or by resetting the NC the error can be cancelled.
M01

Restart posn return disabled

Details
Restart position return was attempted in a mode where the return is disabled.
Remedy
Correct the program restart position.
M01

Zero point return interruption

Details
Compound type fixed cycle program was interrupted with manual zero point return, and cycle start was carried
out without carrying out reset.
Remedy
Cancel the program execution by reset.
M01

Excessive no. of reverse block

Details
During the reverse run in arbitrary reverse run, any one of the part systems reverse-ran for 20 blocks.
Remedy
This error is cancelled by forward run.
M01 Illegal mode in prg check mode
Details
Any of the following modes has been turned ON during the manual arbitrary reverse run mode.
MDI interruption mode
Manual/automatic simultaneous valid (MAE1 to 8)
Arbitrary feed mode (PTP)
Arbitrary reverse control mode (RVMD)
Manual speed command enabled
High-speed simple program check mode (SMLK)
Remedy
The error can be cancelled by turning OFF the error-causing mode.
M01 Too many active axes per sys
Details
High-accuracy control has been executed in a part system which has 9 or more enabled control axes, except
for a slave or synchronous axis.
Remedy
Reduce the number of enabled control axes (except for a slave axis and synchronous axis) of the part sys-
tem to 8 or less through synchronous control, control axis synchronization across part systems, or mixed
control before executing high-accuracy control.
M01 Pre-intrpl variable accel err
Details
The parameter "#12060 VblAccPreInt" (Variable-acceleration pre-interpolation acceleration/deceleration
ON) is set to "1" and the parameter "#8090 SSS ON" is set to "0".
Remedy
To enable the variable acceleration pre-interpolation acceleration/deceleration, set the parameter "#8090
SSS ON" to "1".
To disable the variable acceleration pre-interpolation acceleration/deceleration, set the parameter "#12060
VblAccPreInt" to "0".
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