Rockwell Automation Publication 20P-TG004C-EN-P - September 2021
67
Access Procedures
Chapter 3
4.
Loosen the eight hexalobular screws that secure the protective plastic cover
to the control pan and remove the cover.
5.
Remove the switching power supply circuit board. See Remove the
Switching Power Supply Circuit Board on page
.
6.
Disconnect the (red and white) gate leads from connectors XP1 and XP2
at the top-left corner of the board. Refer to the pulse transformer board
layout on the following page.
7.
Disconnect the appropriate gate leads from the pulse transformer board:
•
For non-regenerative drives, each pair of (red and white) gate lead
cables from connectors KG1…KG6.
•
For regenerative drives, each pair of (red and white) gate lead cables
from connectors KG1…KG6 and KG01…KG06.
8.
Disconnect the cables from the following connectors: XUV, XCD_IO,
XUVW, XCD, XR, XTA, X3, X4 and XSPF. Also, carefully remove the
ribbon cable (from XR) from the cable standoff on the board.
9.
Remove the plug-in terminal block at the bottom of the pulse transformer
board.
IMPORTANT
Mark all connections and wires before removal to avoid incorrect
wiring during reassembly.
P F C - X X
FV1
FU1
=
4
4
Switching Power
Supply board
Tightening torque:
0.8 N
•
m (7 lb
•
in)
Pulse Transformer
board
T25
4
4
