Fanuc Power Mate i-D/H Maintenance Manual

B63175EN/03
7. TROUBLESHOOTING
463
For pattern A, the possible faulty locations are as follows:
1) The optical cable that connects the slave indicated by bits 12 to 15 of
the mode information and the preceding slave is faulty. Alternatively,
one of the slaves connected by that optical cable is faulty.
2) The power supply voltage applied to the above amplifier is low.
3) The axis control card in the CNC is faulty.
For pattern B, the possible faulty location is as follows:
1) The optical cable that connects the slave indicated by bits 12 to 15 of
the mode information and the next slave is faulty. Alternatively, one
of the slaves connected by that optical cable is faulty.
2) The power supply voltage applied to the above amplifier is low.
For pattern C, the possible faulty location is as follows:
1) The slave indicated by bits 12 to 15 of the mode information is faulty.
Alternatively, the power supply voltage applied to that slave is low.
If alarm 462 or 463 is issued, the axis number at which a problem is
present is indicated in the alarm message. In this case, the possible faulty
locations are as follows:
1) One of the optical cables or one of the slaves that are located between
the axis number indicated in the alarm message and the CNC is faulty.
2) The axis control card in the CNC is faulty.
When an alarm is issued, display the amplifier setting screen of the FSSB
setting screen. Only the slaves that can be recognized by FSSB are
displayed.
The possible faulty locations are as follows:
1) The optical cable that connects the last slave that can be recognized and
the next slave is faulty. Alternatively, one of the slaves connected by
that optical cable is faulty.
2) The axis control card in the CNC is faulty.
It is revealed that an optical cable for FSSB may break. If the alarm is
considered to be due to an optical cable, refer to SERVICE
TECHNICAL REPORT(SR No. 1998233, KB No. F16/0641) Title:
Problem in Optical Cables (Optical Fiber Cables for Extensions) for the
i Series, and replace the cable with a newtype optical fiber cable
supplied as the permanent measures against the problem. When the same
unit has another optical fiber cable not yet replaced by a newtype optical
cable, there is a high possibility that the optical cable is also damaged.
So, together with the defective cable, replace all the other optical cables
that have not yet been replaced by newtype optical fiber cables.
D Required action for
alarms 462 and 463
D Required action for
alarm 5136
D Action to be taken when
the alarm is due to an
optical cable

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