Issue:
Getting InFD Fault on the Altivar Process Drive.

Product Line:
Altivar Process Drive System (ATV660, ATV960, ATV680, ATV980)

Environment:
All serial numbers for Altivar Process Drive

Cause:
Drive is displaying an Internal Error 13

Resolution:
An InFD is an Internal Error 13 (Differential Current Deviation Error).
Possible Causes:

• One or more bricks are not operating
  • List of bricks in the Altivar Drive Systems (ATV660, ATV680, ATV960, ATV980)
    • Rectifier Brick
    • Inverter Brick
    • Filter Brick
    • Active Front End (AFE) Brick
• Current transformer of the bricks are damaged
  • The current transformer are located on the Inverter Brick.
  • Inverter Brick may have to be replaced.

Remedies:
*Only authorize personnel should perform these task*

• Check Power Board to Invert Brick cable.
  • Check pin connections
  • Reseat
• Measure U/V/W phase currents of each brick on the paralleling choke to identify the brick with less output current.
• Manually test IGBT on each Brick with a multimeter.
  • Open Motor choke connections when performing test.

Released for:Schneider Electric Egypt and North East Africa