Issue:

ATV61/71 Drive display screen is blank.

Product Line:

ATV61/71 AC Drive

Environment:

All

Cause:

n/a

Resolution:

If remotely mounted, try connecting to the face of the drive.

Check +10v to com and +24v to 0v.

Measure the input voltage to the drive, at L1, L2 and L3.

Check the DC Bus (PA/+ to PC/-) on the bottom of the drive, near line and load terminals. You should read {Line Voltage x 1.414} around 680v dc, if 460v system, or 340v dc, if 230v system.

If line voltage (measured on the L1,L2,L3 terminals of the drive is correct, but DC bus

voltage is low/zero, then there is likely an internal issue in the in the drive. Perform

a static check on the inputs to confirm.

Released for:Schneider Electric Malaysia