ABB · ACS880
Communication between the drive and an option module has been lost. This means the functionality provided by that specific option module is unavailable. The drive may continue to operate but without the features of the affected module.
Click steps to track your progress.
Power down the drive completely (main power disconnect). Physically remove the option module, inspect its pins for damage, and firmly reinsert it into its slot.
Verify the drive's `P70.01` (Option Module 1 presence) and related parameters to confirm the drive recognizes the module after power-up.
Check the option module's LED indicators (if present) for status or fault codes to diagnose its internal state.
Verify that the drive firmware version is compatible with the option module's firmware version, referring to the manufacturer's compatibility matrix.
Temporarily swap the option module with a known-good identical module to isolate whether the issue is the module or the drive's slot.