Per the manual the CALIBRATION FAIL trip is a signal calibration fault occurring in the drive.
Generically, if the drive sees more than ~42 volts on the armature when it is powering up the failure occurs. This can occur for several reasons. They overwhelming lead to a drive issue that requires a spare part, field service, or RMA.
For checks to further diagnose per Parker Manufacturing, try the following:
- As an oddity before beginning... double check the wiring on your inputs and output terminals.
- If you have 24V source entering into a drive output terminal then the calibration fail alarm may appear. Obvious advisement is to remove the 24V source from entering through the drive output and fix your wiring per what your application demands. This is not a repeatable symptom, extraneous noise is suspected in this case in addition to other factors. But if the wiring is nominal is then vetted to be nominal the issue may alleviate, then test functionality of your output to ensure it has not been damaged. Then continue through the following checks.
- Cycle power on the drive. If the issue disappears, operation should continue as normal and noise is suspected.
- Disconnect your motor from the drive. If the issue persists at power startup without a motor connected, that's a drive issue.
- With a multi meter, and with the motor disconnected:
- Check for shorts between an armature terminals A+ / A- to ground. If there is a short between an armature terminal and ground, that's a drive issue.
- Check for shorts between A+ and A-. If there is a short between them, that's a drive issue.
If it only occurs with a motor connected:
- Check for shorts in your motor, across the armature. If there's a short, that's a motor issue to fix first.
- Check for an open relative to ground on the armature leads. It should be open relative to ground. If not, you've a shorted motor to fix first.