External Trip

What does E12 mean?

This fault is triggered by an external safety or protection device connected to an intelligent input terminal configured as 'EXT' (option code 12). It signifies that an external condition requires the inverter to stop its output immediately, acting as a general-purpose interrupt to the drive's operation.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Once the external condition is resolved, reset the inverter using the Stop/Reset key on the keypad or the [RS] input terminal (option code 18) to clear the trip state.

2. 4

   Confirm that the 'EXT' input wiring is correctly installed and not inadvertently activating the trip.