External interlock

What does ALARM 60 mean?

An external interlock signal has been activated, causing the frequency converter to trip. This typically originates from a safety device or process control, indicating a condition that requires intervention before normal operation can resume to prevent injury or damage.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Reset the frequency converter via serial communication, digital I/O, or by pressing the [Reset] key after the interlock condition is cleared.