8
Step 9: Remove the front cover from the drive.
Insert a screwdriver into the slot and release the retaining lever.
Then swing the cover away from the drive and remove it.
Use an appropriate meter to verify the absence of AC line voltage
at the drive terminals (U1, V1,W1) and measure the DC voltage at
terminals (Uc+, Uc-) before servicing the unit..
Step 10: Disconnect the Power Wiring.
If wiring is not clearly marked (as shown in the picture at the
right), use tags to identify each wire for later reconnection to the
proper terminals.
Disconnect ac input leads at terminals U1, V1 and W1. The pic-
ture to the right shows the R1 Frame terminal block. The loca-
tion and layout of power terminals for R2, R3 and R4 frames are
similar.
Summary of Contents for ACH400 Series
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