A090 alarm in WEG CFW900 Drive indicates an External Alarm. This means a peripheral safety or sensor switch connected to the digital inputs has triggered a warning state.
Cause:
External alarm via digital input.
- DI input wiring programmed to generate external alarms is open.
Note: Necessary to set the DI in parameter C7.10.1.
Remedy:
Check digital input terminal loops and secure connections to prevent open circuit alarms.
