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

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)