A1312 to F1317 Slot C AI1, AI2, AI3 Cable Disconnection Analog input signal (AI1, AI2, or AI3) set to 4 to 20 mA mode is out of range. fault in WEG CFW900 Drive
These codes indicate a Slot C Analog Input Cable Disconnection. This means the 4-20mA signal on an expansion analog input dropped below the safe threshold.
Cause:
- Analogue input loop cable is broken (the read value remained under 2 mA for longer than 5 seconds).
- Poor contact at the signal connection terminal blocks.
Remedy:
Check loops for physical line breaks. Clean and secure terminal connections.
