External Fault (LI/Bit)

What does EPF1 mean?

An external fault detected from a logic input (LI) or a local link. This indicates that an external safety device, sensor, or interlock has triggered a fault condition, causing the drive to stop. The specific cause depends on the connected device and its state.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Verify wiring and connections for the external fault input for breaks or shorts.

2. 4

   Ensure the external fault signal is configured as active high or active low correctly in the drive parameters.