Maintenance 8. Trouble Shooting
RC180 Rev.17 239
9615
Initialization communication of the main and
servo CPU failure.
Check for noise. Replace the DMB.
Check the noise countermeasures.
Replace the DMB.
9616
Communication of the main and servo CPU
Reboot the controller. Check for
noise. Replace the DMB.
Check the noise countermeasures.
Replace the DMB.
9617
Communication of the main and servo CPU
Reboot the controller. Check for
noise. Replace the DMB.
Check the noise countermeasures.
Replace the DMB.
9618 Servo long time command overrun.
Check the noise countermeasures.
9619 Servo long time command check sum error.
Check the noise countermeasures.
9620
System watchdog timer detected a failure.
Reboot the controller. Check for noise.
Check the noise countermeasures.
Replace the DMB.
9621 Drive unit check failure.
Check the noise countermeasures.
RAM failure of the servo CPU. Reboot the
controller. Check for noise. Replace the
Check the noise countermeasures.
Replace the DMB.
9623
Failure of the redundant circuitry for the
emergency stop or the safeguard. Check
Check the noise countermeasures.
Replace the DMB.
9624
Low voltage of the main circuit power
Check the power
supply voltage. Reboot the controller.
Check the noise countermeasures.
Replace the DMB.
9625
Control relay contact of the main circuit
power supply is welded closed. Replace
Replace the DMB.
9630
Servo real time status failure.
Check sum error.
Check the noise countermeasures.
9632
Servo real time status failure.
Servo free running counter error
Check the noise countermeasures.
9633
Servo real time status failure.
Servo CPU communication error.
Reboot the controller.
Replace the DMB.
Check the noise countermeasures.
Irregular motion control interruption was
Reboot the controller.
Replace the DMB.
Check the noise countermeasures.
9700
Servo control gate array failure. Check the
DMB.
Check the short-circuit and improper
connection of the peripheral equipment wiring.
(Emergency and I/O connectors)
Replace the DMB.
Replace the additional axis unit.