Rockwell Automation Publication 7000-UM202D-EN-P - May 2018 51
Power Component Definition and Maintenance Chapter 2
Figure 37 - Motor Filter Capacitor
Replacing Filter Capacitors
See Publication 7000-IN010, “Handling, Inspection, and Storage of Medium
Voltage Line Filter Capacitors”.
1. Isolate and lock out all power to the drive.
2. Note the location of all the cables and mark them accordingly.
3. Remove the four power connections to the terminals, and the single
ground connector from the drive to the capacitor frame, 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. The bracket
fits into a slot in the assembly.
5. Remove the capacitor from the drive.
WARNING: Allow 5…10 minutes for motor capacitors to safely discharge
voltage prior to opening cabinet doors.
ATTENTION: To prevent electrical shock, disconnect the main power before
working on the drive. 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.
IMPORTANT Capacitors can weigh as much as 100 kg (220 lbs). Use two or more people to
remove a capacitor.
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