Error description 237-180B1
Error message
180B1 Time exceeded during communication with UM 3xx at %1
Cause of error
The described UM 3xx did not react to a communication request from the CC in time.
Possible causes
- Electromagnetic noise or faulty electrical contacts of the 24V supply voltage
- Electromagnetic noise or faulty electrical contacts of the DC-link voltage
- Electromagnetic noise or faulty electrical contacts in the motor cabling
- Electromagnetic noise or faulty electrical contacts in the brake cabling
- Contamination or poor optical coupling of the HFL
Error correction
- Check the machine and wiring for correct shield connection and grounding
- Check the power cables for correct clamping
- Check the HFL for correct routing, and also for contamination and correct clamping
- Exchange the UM 3xx inverter
- Exchange the CC 3xx controller unit
- Generate a service file and inform your service agency