Rockwell Automation SK-L1-CAP2-D650 Filter Capacitor Kit SK-L1-CAP2-D650 for PowerFlex 700L Fr. 3A 480V AC Drives User Manual

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Rockwell Automation Publication 20L-IN015A-EN-P - February 2012

Filter Capacitor Replacement Kit SK-L1-CAP2-D650 for PowerFlex 700L Frame 3A 480V AC Drives

Step 5: Remove the

Existing Filter
Capacitor Assembly

a. After power has been removed from the drive, the filter capacitor bank

should discharge via the bleeder resistor discharge network. Wait five
(5) minutes to fully discharge.

b. Carefully check for zero (0) volts between each of the three (3)

Capacitor Bus Bars (input power) and the Neutral Bus Plate at the
stake-on connectors using a confidence-tested DC voltmeter.

c. Gain access to the left side of the enclosure. Remove and retain the

hardware that secures the left side panel to the enclosure, and remove
the panel and set it aside.

d. Cover any components under the capacitor bank to protect them from

any dropped hardware.

e. Place a piece of rigid cardboard or something similar on top of the three

(3) Bus Bars connected to the contactors to prevent any damage to the
Bus Bars or their protective coating.

f. Using access from the left side of the enclosure, locate the three (3)

power wires coming from the back of the capacitor bank assembly that
are attached to the inductors. Remove the hex nuts securing the power
wires to the inductors. Retain the hardware.

g. Remove the six (6) screws that are securing the three (3) bleeder

resistors to the sheet metal panel. Discard the hardware.

h. Remove the grounding screw that is securing the ground lead from the

surge trap (SPD) to the sheet metal panel. Discard the hardware.

i. Remove the grounding screw that is securing the ground lead from the

1 μF Capacitor to the sheet metal panel. Discard the hardware.

j. Remove the hardware that is securing the capacitor bank assembly to

the mounting panel and carefully remove the capacitor bank assembly
from the enclosure. Once removed, remove the hardware that is
securing the three (3) power wires to the back of the capacitor bank
assembly. Note the location of each of the wires. Retain the hardware
and the wires.

ATTENTION: Upon removing the assembly and hardware, sharp edges may be
encountered. Use work gloves to protect your hands.