Live zero error

What does ALARM 2 mean?

The signal on one of the analog inputs is less than 50% of the programmed minimum value. This condition, appearing if parameter 6-01 Live Zero Timeout Function is programmed, often indicates broken wiring or a faulty sensor/device sending the analog signal, risking incorrect operation or control.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Perform an input terminal signal test to confirm proper signal reception.