Troubleshooting
The following table describes possible faults and the measures to remedy them. There can be a large number of different reasons for a fault, depending on the particular conditions in your system. The fault causes described below are mostly those which directly influence the motor. Peculiarities which show up in the control behavior can usually be traced back to an error in the parameterization of the servo drives. Information about this can be found in the documentation for the servo drives and the commissioning software.
For multi-axis systems there may be further hidden reasons for faults.
Error | Possible cause | Measures to remove the cause of the fault |
|---|---|---|
Motor does not move | Servo drive not enabled | Supply ENABLE signal |
Motor phases in wrong sequence | Swap the motor phases | |
Brake not released | Check brake control | |
Drive is mechanically blocked | Check mechanism | |
Motor runs away | Motor phases in wrong sequence | Check the commutation offset |
Motor oscillates | Break in the shielding of the feedback cable | Replace the feedback cable |
Amplification to high | Use the motor default values | |
Error Message: Output stage fault | Motor cable has short circuit or earth leakage | Replace motor cable |
Motor has short circuit or earth leakage | Replace motor | |
Error Message: Feedback | Connector is not properly plugged in | Check the plug connector |
Break in cable, cable crushed or similar | Check cables | |
Internal error | Read out the error messages | |
Brake does not grip | Required holding force | Check the design |
Brake faulty | Replace the motor brake |