Power unit communication fiber fault

ABB Electrical Error vfd

Model: ACS880 | Code: FF74

Applicable Systems
AC500 AC590 ACS580 ACS880

Symptoms

Power unit communication via fiber optic link failed.

Possible Causes

Fiber optic cable damaged, connector dirty, or power unit interface board fault.

Troubleshooting Steps

Clean fiber connectors, inspect fiber cable for damage, replace if needed.

How to Reset

Fix fiber and reset

Common Replacement Parts

  • Fiber optic cable

Related ABB Fault Codes

Source: ABB ACS880 fault manual

Category: Electrical