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MITSUBISHI CNC
Appendix 2 Explanation of Alarms
P432 No spec: Start position return
Details
Start position return (G29) was commanded though it is out of specifications.
Remedy
- Check the specifications.
P433 No spec: R-position check
Details
Reference position check (G27) was commanded though it is out of specifications.
Remedy
- Check the specifications.
P434 Compare error
Details
One of the axes did not return to the reference position when the reference position check command
(G27) was executed.
Remedy
- Correct the program.
P435 G27 and M commands in a block
Details
An M command was issued simultaneously in the G27 command block.
Remedy
- Place the M code command, which cannot be issued in a G27 command block, in separate block
from G27 command block.
P436 G29 and M commands in a block
Details
An M command was issued simultaneously in the G29 command block.
Remedy
- Place the M code command, which cannot be issued in a G29 command block, in separate block
from G29 command block.
P438 G52 invalid during G54.1
Details
A local coordinate system command was issued during execution of the G54.1 command.
Remedy
- Correct the program.
P450 No spec: Chuck barrier
Details
The chuck barrier on command (G22) was specified although the chuck barrier is out of specifications.
Remedy
- Check the specifications.
P451 No spec: Stroke chk bef travel
Details
Stroke check before travel (G22/G23) was commanded though it is out of specifications.
Remedy
- Check the specifications.
P452 Limit before travel exists
Details
An illegal command, which places the axis travel start/end point in the prohibited area or moves the
axis through the prohibited area, was detected when Stroke check before travel (G22) was
commanded.
Remedy
- Correct the coordinate values of the axis address commanded in the program.
596
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Troubleshooting
