Error description 237-180B2

Error message

180B2 Error in communication with UM 3xx at %1

Cause of error

Telegrams were lost during transmission of the actual current values from the UM to the CC.
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-
- Internal system error

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