Owner manual

PowerFlex® DC Drive - Frame B Field Circuit Board 13
Step 4: Remove the
Existing Field Circuit Board
1. Remove the wires from connectors UF, UF1, VF and VF1.
2. Remove the six screws and washers that secure the Field board to the
Field SCR and Dual Diode Modules and remove the Field board.
Step 5: Install the New
Field Circuit Board
Install the new Field circuit board in reverse order of removal as detailed in
Step 4: Remove the Existing Field Circuit Board
on page 13.
• Tightening torque for the screws connecting the Field board to the Field
SCR and Dual Diode Modules is 2.5…4.0 N•m (22…35 lb•in).
• Inspect the existing X3 and XFCD cables for burn marks, cracks or loose
connectors. If necessary, replace the cables on the Field board with the
new cables provided.
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Remove screws
and washers
Remove wires
Remove screws
and washers