A1106 / F1107 fault in WEG CFW900 Drive

A1106 / F1107 Slot A enc. A cable disconnection Encoder channel A signal is not detected correctly. fault in WEG CFW900 Drive

These codes indicate a Slot A Encoder Channel A Cable Disconnection. This means the drive lost the primary positioning pulse signal from the encoder.
Cause:

  • Broken or disconnected signal cable.
  • Encoder connection error.
  • Encoder has no power supply.

Note: This check can be disabled by setting parameter C5.n.6.2 (where n is the slot index where the accessory is installed).

Remedy:

Verify the physical and electrical integrity of the encoder channel A cabling. Check terminal connections and verify the encoder auxiliary power supply voltage.