Fanuc Power Mate i-D/H Maintenance Manual

B63175EN/03
7. TROUBLESHOOTING
451
930: CPU error has generated.
Alternatively, a FANUC I/O Link cable wire has broken, or the
power of the master or another slave has been switched off.
1) Base PC board or CPU card is faulty
An interrupt which will not occur during usual operation has
generated.
Peripheral circuit of the CPU may be abnormal. Change the base PC
board or CPU card. If operation is performed normally by power off
and on, noise may be a cause. Refer to Section. 2.14 Suppressing
Noise.
2) Memory module is faulty
Replace the memory module.
CAUTION
When the base PC board and memory module are
replaced, all the data stroed in memory is lost. Set data
again, referring to Chapter 3 INPUT AND OUTPUT OF
DATA.
3) FANUC I/O Link slave functions
Poor contact in connector JD1A or JD1B
The power for the I/O Link master unit is off.
The power for another I/O Link slave unit is off.
7.26
ALARM 930
(CPU ERROR)
Causes and Remedies

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