Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) - Classic Control - Manual (Page 306)

6-16 Component Definition and Maintenance
7000-UM150I-EN-P – June 2013 7000 “B” Frame
Filter Capacitor Replacement
1. Ensure there is no power to the equipment.
A T T E N T I O N A T T E N T I O N To prevent electrical shock, ensure the main
power has been disconnected before working on
the capacitor. Verify that all circuits are voltage
free using a hot stick or appropriate voltage-
measuring device. Failure to do so may result in
injury or death.
2. Note the location of all the cables and mark them accordingly.
3. Remove the 4 power connections to the terminals, and the single
ground connector from the drive to the capacitor frame. This is
located at the back top right corner of the capacitor.
4. Remove the front bracket that holds the capacitor in place. At
the rear of the capacitor, there is no hardware securing the
capacitor; it fits into a slot in the assembly.
5. Remove the capacitor from the drive. THESE CAPACITORS
CAN WEIGH AS MUCH AS 100 kg (200 lbs), SO YOU WILL
REQUIRE TWO PEOPLE TO REMOVE A CAPACITOR.
6. Install the new capacitor, sliding it back until it fits into the slot.
Fasten the front bracket.
7. Reconnect all the power cables and the ground connection.
These use M14 hardware, but should only be tightened to 30 Nm
(22 ft-lbs.) due to capacitor mechanical constraints. You may
want to fasten these connections before fully sliding the
capacitor into place depending on the available space.
8. There are instruction labels on each capacitor detailing how to
tighten the terminal connections. Please refer to these labels.
9. Reinstall the sheet metal that was removed, and complete one
final check to ensure connections are secure and correct.