Issue:
 What can cause a ILF fault on the ATV71 drive with an  VW3A3501  CIC card installed?

Product line:
Altivar ATV71

Environment:
All models, all serial numbers 

Cause:
If the CIC card is missing the external +24vdc pwr supply the drive will trigger an ILF fault after 1 sec of being powered up.      

Resolution:
Per the CIC installation manual document, atv71_controller_inside_EN_V3 page 10, it is recommend to add an external power supply part number ABL7RE2402 to the controller inside cards +24vdc and com terminals to resolve issue.