Rockwell Automation 20L-RESPRE-A1 PowerFlex 700L Frame 3A and 3B Input Filter Precharge Resistor Kit - Manual (Page 3)

PowerFlex® 700L Frame 3A and 3B Input Filter Precharge Resistor Kit (20L-RESPRE-A1) 3
Step 1: Removing Power
from the Complete Drive
1. Turn off and lock out complete drive input power. Wait 5 minutes.
2. Verify that there is no voltage at the complete drive’s input power
terminals.
3. Remove the lower front cover of the power module. Loosen the two (2)
captive screws and pull the cover off the power module. Set the cover
aside to be reinstalled later.
4. Measure the DC bus voltage at the DC+ TESTPOINT and DC-
TESTPOINT sockets on the front of the power module chassis. The
voltage must be zero.
!
ATTENTION: To avoid an electric shock hazard, verify that the
voltage on the bus capacitors has completely discharged before
performing any work on the complete drive cabinet. After
removing power, wait 5 minutes for the power module bus
capacitors to discharge. Remove the lower front cover of the
power module. Measure the DC bus voltage at the DC+
TESTPOINT and DC- TESTPOINT sockets on the front of the
power module. The voltage must be zero.
Remove power before making or breaking cable connections.
When you remove or insert a cable connector with power
applied, an electrical arc may occur, which can cause personal
injury or property damage by:
• sending an erroneous signal to your system’s field devices,
causing unintended machine motion
• causing an explosion in a hazardous environment
Electrical arcing causes excessive wear to contacts on both the
module and its mating connector. Worn contacts may create
electrical resistance.
L1 L2 L3
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