SEW 8214816.10

Common Fault Codes

F01

Overcurrent fault detected in the power stage of the axis module. The output current has exceeded the permissible peak threshold.
Check motor wiring for short circuits or ground faults. Verify motor parameters are correctly configured. Inspect the power stage for damage and replace the module if the fault persists after wiring checks.

F02

DC link overvoltage. The DC bus voltage has exceeded the maximum permissible level, typically caused by regenerative energy not being dissipated.
Check the braking resistor connection and condition. Verify the supply module is correctly sized for the regenerative load. Ensure the DC bus capacitors and braking chopper are functional.

F03

DC link undervoltage. The DC bus voltage has dropped below the minimum operating threshold, indicating a supply issue.
Check the input supply voltage at the supply module. Inspect fuses and contactors in the supply circuit. Verify that the supply module is correctly rated for the connected axis modules.

F05

Heat sink overtemperature. The thermal sensor on the power module has detected a temperature exceeding the safe operating limit.
Check that cooling airflow is unobstructed and the fan is operational. Verify ambient temperature is within specification. Reduce duty cycle or consider a higher-rated module if overtemperature recurs.

F07

Encoder or feedback system fault. A signal error has been detected on the encoder interface, indicating loss of feedback or signal corruption.
Inspect encoder cable for damage, correct shielding, and secure connections. Verify encoder supply voltage. Replace the encoder or feedback cable if signal integrity cannot be restored.

F14

Axis bus communication error. Communication between modules on the internal MOVIAXIS axis bus has been interrupted or lost.
Check the axis bus connectors between modules for secure seating. Inspect the bus rail for damage. Power cycle the system and verify module addressing. Replace faulty modules if communication cannot be restored.

F25

Safe Torque Off (STO) input activated or STO circuit fault detected. The safety function has been triggered or a wiring fault in the STO circuit is present.
Verify that the STO input signals are correctly applied and the safety circuit is intact. Check STO wiring for open circuits or incorrect voltage levels. Consult the safety wiring diagram and reset the safety function after resolving the cause.

F38

Motor overtemperature. The motor thermal sensor (PTC or KTY) has reported a temperature above the permissible limit.
Allow the motor to cool before restarting. Check that the motor is not mechanically overloaded. Verify the thermal sensor wiring and sensor type configuration in the drive parameters.