Step 4: prepare for the replacement – 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
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Filter Capacitor Replacement Kit SK-L1-CAP2-D650 for PowerFlex 700L Frame 3A 480V AC Drives
Step 3: Verify that DC Bus
Capacitors are
Discharged
a. Using a confidence-tested AC voltmeter, verify that AC power is no
longer present on the line side of the drive enclosure's main incoming
circuit breaker.
b. Visually inspect the drive to insure no lamps or indicators are
illuminated.
Step 4: Prepare for the
Replacement
a. Read and follow the lock out, tag out, and safety verifications previously
described.
b. Open the door of the drive. Refer to
and note the locations of
the hardware in the existing Filter Capacitor Assembly.
Figure 1 - Existing Filter Capacitor Assembly in Drive
ATTENTION: DC Bus capacitors retain hazardous voltages after input power has
been disconnected. After disconnecting input power, wait five (5) minutes for
the DC bus capacitors to discharge and then check the voltage with a voltmeter
to ensure that the DC bus capacitors are discharged before touching any internal
components. Failure to observe this precaution could result in severe bodily
injury or loss of life.
IMPORTANT
Prior to the removal and installation process, it is highly recommended that the
left side panel of the enclosure be removed to gain proper access to the
capacitor bank assembly. If the left side panel cannot be removed, please call
Technical Support for assistance at 1-440-646-3434.
1 μF Capacitor Ground
Lead Connection
Power Wires
(3x, not shown)
Capacitor Bank
Hardware (6x)
Surge Trap (SPD) Ground Wire Connection
(follow wire to the surge trap)
Bleeder Resistors (3x)
Resistor Mounting
Hardware (6x)
Tab Connectors (3x)
Neutral Bus Plate