Rockwell Automation 20Y PowerFlex 700H, 700S, and 700AFE Drive Fan Systems, Frames 9...14 - Manual (Page 33)

Rockwell Automation Publication PFLEX-IN029B-EN-P - August 2014 33
PowerFlex 700H and 700S Drives - Frame 9 Procedures Chapter 1
Main AC Fan Inverter Circuit Board Assembly (20-VB00299) Removal
and Installation
See Checking the Main AC Fan Inverter Circuit Board Diagnostic LEDs on page
268 for test procedures used to determine if the circuit board requires
replacement.
Follow these steps to replace the main AC fan inverter circuit board.
1. Review the General Precautions on page 17 .
2. Remove power from the drive. See Remove Power from the Drive on page
23 .
3. Remove the lower protective cover from the drive. See Remove the Lower
Protective Cover on page
24 .
4. Remove the main AC fan inverter capacitor bracket. See Removing the
Main Fan Inverter Capacitor Bracket on page
25 .
5. Reach into the fan inverter compartment and disconnect the isolation
transformer wires from X4 and X5 on the fan inverter board.
6. Disconnect the wires from connector X8 on the fan inverter board.
7. Disconnect the wires from connector X2 on the fan inverter board. Retain
these wires for reuse.
IMPORTANT Mark the existing isolation transformer wires so that you can identify
them later in this procedure.