Brake Tripped on Fault or Not Engaged

What does Brk Fault mean?

This fault indicates that the mechanical brake has either tripped due to a fault (e.g., not releasing during start/run) or failed to engage during a stop command. This is critical in applications requiring load holding, such as hoisting. If the brake does not engage or release correctly, it can lead to uncontrolled load movement, posing significant safety risks and potential equipment damage.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Inspect the circuit breaker feeding the mechanical brake circuit for tripping or malfunction.

2. 4

   Check the mechanical brake itself, especially if the acknowledge signal is wired from a limit switch, for proper operation and wear.

3. 5

   Inspect the brake contactor for proper operation, auxiliary contact function, and signs of arcing or wear.