ABB ACS550 Drive
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Jun 21, 2024 6:52 am
Cause : IO COMM comes when the drive is encountering issues communicating with another device over a fieldbus network.
The A2005 alarm code on your ABB ACS550 drive indicates a fieldbus communication error . This means the drive fieldbus communication has timed out.
Check for and correct:
- Fault setup (3018 COMM FAULT FUNC and 3019 COMM FAULT TIME).
- Communication settings (Group 51: EXT COMM MODULE or Group 53: EFB PROTOCOL as appropriate).
- Poor connections and/or noise on line.