Error description 237-13048

Error message

13048 UM3: sequencer sync pulse outside the tolerance range %1

Cause of error

The synchronization pulse for an internal sequencer in the inverter was (too often) outside of the specified tolerance range.
Electromagnetic noise or faulty electrical contacts:
- of the 24 V supply voltage
- of the DC-link voltage
- in the motor cabling
- in the brake cabling
- Contamination or poor optical coupling of the HFL

Error correction

- Check the machine for correct shield connection and grounding
- Check the power cables for correct clamping
- Check the HFL for correct routing and clamping, and also for contamination
- Exchange the UM3
- Exchange the CC3
- Inform your service agency