Drives Service & Support > PowerFlex 70 > Fault Finder

Fault Number : 29

Fault Display : Analog In Loss

Fault Name : Analog In Loss

Fault Type : 1 - Auto-Reset Run & 3 - User Configurable

Fault Description : An analog input is configured to fault on signal loss. A signal loss has occurred.

Corrective Action : This fault is configured with parameters 324 & 327[Anlg In 1, 2 Loss]. These are set to disabled by default in the drive. If either parameter is configured for setting number 1 "Fault", and a signal loss is detected on Analog in 1 or Analog in 2, then the drive will give this fault.

Make sure that the signal being used for Analog in 1 or Analog in 2 is functional. Make sure the signal is present on terminals 14 - 21 depending on if the Analog signal is voltage or current based.

Check Parameter 90 [Speed Ref A Sel] or parameter 93 [Speed Ref B Sel] for proper setting. Parameter 93 [Speed Ref B Sel] is used only when a digital input 1-6 is set for Speed Sel 1 (Option 15). Parameter 96 [TB Man Ref Sel] may also call an analog input to be used. This parameter is used when a Digital Input 1-6 is set for Auto/Manual (Option 18).