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What should I check for if I have no display on an Altivar drive?

FA242537

26 February 2021

Issue:
Troubleshooting steps if there is no display on an Altivar drive.

Product Line:
Altivar Drives

Environment:
All serial numbers for Altivar Drives

Cause:
N/A

Resolution:
Perform this basic steps
Check line voltage by measuring L1, L2, L3 on the drive itself
Check DC Bus by measuring PA to PC and PO to PC  (most drives)
Reseat terminal card (ATV61/71 only)
Remove cable from Modbus port if present
Check +24 to COM and +10 to COM (DC voltage only)