SEW 8221715.10

Common Fault Codes

F01

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

F02

Overvoltage on the DC bus. The DC link voltage has exceeded the maximum permissible threshold, often caused by regenerative energy not being dissipated.
Check braking resistor connection and condition. Verify deceleration ramp settings are not too aggressive. Ensure the supply module is correctly sized for the application load.

F03

Undervoltage on the DC bus. The DC link voltage has dropped below the minimum operating threshold.
Check mains supply voltage and connections. Verify supply module is functioning correctly. Inspect fuses and contactors in the supply circuit.

F07

Motor overtemperature. The motor thermal model or PTC/KTY sensor has detected excessive motor temperature.
Allow motor to cool before restarting. Check motor load cycle and reduce if necessary. Verify motor cooling system is operational and sensor wiring is intact.

F08

Drive overtemperature. The internal heatsink temperature of the axis module has exceeded the permissible limit.
Check ambient temperature and cabinet ventilation. Ensure cooling fans are operational. Reduce output frequency or load, or derate the drive for higher ambient conditions.

F14

Encoder or feedback system fault. A signal error has been detected on the feedback interface, such as loss of encoder signal or implausible position values.
Check encoder cable for damage, correct shielding, and secure connections. Verify encoder supply voltage. Replace encoder or feedback cable if fault persists.

F43

Communication timeout on the fieldbus interface. The axis module has lost communication with the master controller within the configured watchdog time.
Check fieldbus cable connections and network topology. Verify master controller is active and transmitting cyclic data. Review watchdog timeout settings in the drive parameters.

Safe Torque Off Fault

The STO safety function has been triggered or a discrepancy has been detected in the STO input channels, preventing drive enable.
Verify the STO input signals are correctly applied and the safety circuit is intact. Check wiring to the STO terminals. If the safety circuit is healthy, reset the fault and re-enable the drive.