Rockwell Automation 20Y PowerFlex 700H, 700S, and 700AFE Drive Fan Systems, Frames 9...14 - Manual (Page 145)

Rockwell Automation Publication PFLEX-IN029B-EN-P - August 2014 145
PowerFlex 700H and 700S Drives - Frame 13 Procedures Chapter 5
Removing the Main AC or DC Fan Power Supply Assemblies (Inverter
Only)
You must remove the main fan power supply assemblies from the drive in order to
test and/or replace the AC or DC fan power supply circuit board, AC fan
inverter output transformer, and/or AC fan inverter capacitor. Follow these steps
to remove the main fan inverter assemblies. See Isolating a Faulty Fan Inverter on
page
265 for test procedures used to determine if the fan inverter assembly
requires replacement.
Follow these steps to remove and replace a main fan inverter assembly.
1. Review the General Precautions on page 17 .
2. Remove power from the drive. See Remove Power from the Drive on page
134 .
3. Move the control frame, and remove the screens, airflow plates, and
protective covers from the drive. See Move the Control Frame, and
Remove the Screens, Airflow Plates, and Protective Covers on page
135 .
4. Remove the main fan assembly from the drive. See Remove the Main Fan
Assembly on page
143 .
5. Disconnect the fan power supply wires from the bottom of the fuse holder.
Note that the red wire (+DC) is connected to the left side terminal and
the black wire (-DC) is connected to the right side terminals.
5