SEW 8236186.10

Common Fault Codes

F01

Overcurrent fault: The output current has exceeded the permissible peak current limit, indicating a possible short circuit, motor winding fault, or excessive load.
Check motor wiring for short circuits or ground faults. Verify motor parameters are correctly programmed. Inspect load for mechanical blockage.

F02

Overvoltage on DC bus: The DC bus voltage has exceeded the maximum permissible level, typically caused by regenerative energy during deceleration or supply voltage spikes.
Check supply voltage levels. Verify deceleration ramp settings and consider extending ramp time. Inspect braking resistor or energy recovery unit if fitted.

F03

Undervoltage on DC bus: The DC bus voltage has dropped below the minimum threshold, indicating a supply failure or insufficient power supply module capacity.
Check input supply voltage and connections. Verify power supply module rating is adequate for the axis configuration. Check for blown fuses or tripped circuit breakers.

F05

Heat sink overtemperature: The power module heat sink temperature has exceeded the permissible limit, caused by inadequate cooling, blocked ventilation, or excessive load cycle.
Check cabinet ventilation and cooling fans. Verify ambient temperature is within specification. Reduce duty cycle or check for overload conditions.

F07

Encoder or feedback system fault: A signal error has been detected on the motor feedback interface, indicating cable damage, connector fault, or encoder failure.
Inspect feedback cable for damage or loose connections. Verify correct encoder type is configured in parameters. Replace encoder or feedback cable if signal is absent or corrupted.

F10

Communication timeout: The fieldbus communication between the MOVIAXIS module and the master controller has been interrupted or lost.
Check fieldbus cable connections and termination resistors. Verify master controller is active and transmitting. Check fieldbus address settings on the module.

F14

Motor overtemperature: The motor thermal model or PTC/KTY sensor has detected that the motor winding temperature exceeds the permissible limit.
Allow motor to cool before restarting. Check motor load and duty cycle. Verify motor cooling (fan or forced ventilation) is operational. Check PTC/KTY sensor wiring.

F25

Position following error: The actual motor position has deviated from the demanded position beyond the configured tolerance window, indicating mechanical overload or incorrect tuning.
Check for mechanical obstruction or excessive load. Review servo gain and position controller tuning parameters. Verify encoder feedback is functioning correctly.