Safety Circuit Fault

What does E.SAF mean?

This fault indicates a malfunction in the inverter's safety circuit or an open circuit in the lines between S1 and SC, or S2 and SC. This is a critical safety system fault, preventing the inverter from operating until the safety circuit integrity is restored. It ensures the machine cannot start under unsafe conditions.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Inspect the wiring between S1/S2 and SC for any breaks, loose connections, or damage.

2. 4

   Ensure the safety relay module, if used, is functioning correctly and has no internal faults, checking its status indicators.