ABB ACS880 Drive
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Jun 11, 2024 12:18 pm
Cause : FBA B communication comes when cyclical communication between drive and fieldbus adapter module B or between PLC and fieldbus adapter module B is lost.
The fault code 7520 in your ABB ACS880 drive indicates a communication fault between the drive and an external device connected through the Fieldbus interface (FBA). This fault specifically points to a communication break detection issue.
- Check status of fieldbus communication.
- Check settings of parameter group 50 Fieldbus adapter (FBA).
- Check cable connections.
- Check if communication master is able to communicate.