01
Over-current in output stage
SEW Eurodrive · [PDF] Operating Instructions
What does 01 mean?
An excessive current flow has been detected in the inverter's output stage, indicating a potential short circuit. This can occur between motor phases, between a phase and ground, or within the motor winding itself. Such an event poses a significant risk of damage to the inverter's power components and potentially the motor.
Common Causes
- Short circuit on the inverter output.
- Short circuit between the inverter output and the motor cable.
- Short circuit within the motor winding.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Check the connection between the inverter output and the motor for short circuits using a multimeter (phase-to-phase and phase-to-ground resistance).
- 2
Perform a winding resistance test on the motor to check for internal short circuits.
- 3
Reset the fault by switching off the DC 24 V supply voltage to the inverter for at least 10 seconds.
Verified technical data. Last updated: March 2026
Related Faults
Source: [PDF] Operating Instructions