ABB 7520 fault code meaning

ABB / 7520

Series: ACS880

Fieldbus adapter B communication

drive

Meaning: Fieldbus adapter B communication loss function. The cyclic communication signal between the AC drive and fieldbus adapter module B, or between PLC and fieldbus adapter module B, has been lost.

Possible causes

Source: ACS880 Basic Control Program Firmware Manual P477

Series: DCS880

FBA B communication. Before the first data set is received, only

DC drive

Meaning:

Possible causes

Source: DCS880 Firmware Manual_3ADW000474R P363