8
Service
Fault table standard
Operating Instructions – MOVIMOT
®
flexible
259
Subfault: 42.3
Description: Standard lag error
Response: Output stage inhibit
Cause
Measure
A lag fault has occurred outside a positioning pro-
cess.
Incorrect encoder connection.
Check the connection of the encoder.
Position encoder inverted or not installed cor-
rectly at the track.
Check the installation and connection of the posi-
tion encoder.
Wiring faulty.
Check the wiring of encoder, motor, and line
phases.
Acceleration ramps too short.
Extend acceleration ramps.
P component of position controller too small.
Set P component of position controller to a larger
value.
Incorrectly set speed controller parameters.
Check controller parameters.
Value of lag error tolerance too small.
Increase the lag error tolerance.
8.6.30
Fault 44 Subcomponent power section
Subfault: 44.2
Description: Overcurrent phase U
Response: Remote – critical fault
Cause
Measure
Overcurrent phase U.
– Rectify the short circuit.
– Connect a smaller motor.
– Increase the ramp time.
– In the event of a defective output stage, contact
SEW‑EURODRIVE Service.
Subfault: 44.3
Description: Overcurrent phase V
Response: Remote – critical fault
Cause
Measure
Overcurrent phase V.
– Rectify the short circuit.
– Connect a smaller motor.
– Increase the ramp time.
– In the event of a defective output stage, contact
SEW‑EURODRIVE Service.
29128668/EN – 12/2019
