Fanuc Power Mate i-D/H Maintenance Manual

B63175EN/03
7. TROUBLESHOOTING
443
Communication error has generated in serial spindle
Improper connection between the Power Mate and the serial spindle. The
following reason is considered.
Optical I/O Link
adaptor
Optocal cable
α series
spindle
amplifier
Power Mate
Power Mate
Spindle
amplifier
JA11
JA11
Base PC board is faulty.
A cable between the base PC board and optical I/O link adapter is
disconnected or shortcircuited.
Optical I/O link adapter is faulty.
Optical cable is disconnected.
Serial spindle amplifier is faulty.
Noise occurs.
CAUTION
When the base printedcircuit board is replaced, all data in
the memory will be lost because the memory module is
dismounted. Reset up the data by referring to Chapter 3.
7.19
ALARM 749
(SERIAL SPINDLE
COMMUNICATION
ERROR)
Causes and Remedies

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