Cause : Live zero error- This warning or fault only appears if programmed in P 9.5.6.2 Live Zero Timeout Function. The signal on 1 of the analog inputs is less than 50% of the minimum value programmed for that input. Broken wiring or a faulty device sending the signal can cause this condition.

• Check connections on all the analog input terminals. Control card terminals 33 and 34 for signals, terminal 35 common.
• Check that the drive programming and switch settings match the analog signal type.
• Perform an input terminal signal test.