Rockwell Automation 8720MC Drives Integration Manual - Manual (Page 60)

Publication 8720MC-IN002A-EN-P — December 2002
3-6 Troubleshooting Your 8720MC Servo Drive
DriveHardFault
(EEprom Init)
Base driver board hardware Failure Fatal error - replace base driver board
DriveHardFault
(CPLD Load)
Control board hardware Failure Fatal error - replace control board
DriveHardFault
(IDMA Load)
Control board hardware Failure Fatal error - replace control board
DriveHardFault
(CAN Init)
Control board hardware Failure Fatal error - replace control board
DriveHardFault
(SERCOS Init)
Control board hardware Failure Fatal error - replace control board
DriveHardFault
(Task Init)
Control board software error Fatal error - replace control board
DriveHardFault
(Objects Init)
Control board software error
Recall parameters, save to non volatile memory, recycle
power or reset the drive. If this fails to produce positive
results replace the control board.
DriveHardFault
(NV Mem Init)
Control board software error
Recall parameters, save to non volatile memory, recycle
power or reset the drive. If this fails to produce positive
results replace the control board.
MotFeedbackFault
(Fdbk Watch dog)
The feedback processor has faulted Fatal error - replace control board
MotorOvertempFault
(Motor 1 Overtemp)
The motor over temperature switch has
tripped Allow motor to cool down and investigate the cause of
the motor overload.
DriveHardFault
(SCANport Comm)
The controlling HIM has lost communication
with the drive. Investigate the SCANport cable and make sure it is
properly connected
SERCOSFault
(SERCOS Ring Flt))
The SERCOS ring is not active after being
active and operational. Check that the fiber-optic cable is present and
connected properly.
(No Fault)
No fault message appears in the fault que
when there are no faults
No action is needed
Fault Message RSLogix
(HIM)
Probable Cause/Drive Response Corrective Actions