73B0

Emergency ramp failed

ABB · ACS880 Primary Firmware

What does 73B0 mean?

The motor has not stopped within the maximum allowed time after an emergency stop command (Off1 or Off3 mode) was issued. This indicates a failure in the emergency braking sequence, which could lead to unsafe operation if the system cannot stop as expected. The drive trips and coasts to a stop.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Inspect the motor and mechanical load for any issues preventing rapid deceleration.

Source: ABB ACS880 Primary Firmware
View Official PDF