EF0
Option Board External Fault
Yaskawa · F7 Drive
What does EF0 mean?
An external fault condition has been detected by an installed option board. This indicates a problem originating from equipment connected to or monitored by the option board, rather than an internal Drive issue. If ignored, the external issue could damage the connected equipment or compromise system safety.
Complete Troubleshooting Guide
- 1
Investigate the external equipment or condition that is connected to the option board to identify the source of the fault.
- 2
Verify all Drive parameters related to the option board and its external fault configuration are correctly set.
- 3
Check the physical communication signals and wiring to and from the option board for integrity and proper connection.