Step 1: remove power from the drive, Step 2: remove the protective covers – Rockwell Automation 20P PowerFlex DC Drive - Frame C Field Snubber Circuit Board User Manual
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PowerFlex® DC Drive - Frame C Field Snubber Circuit Board
3
Step 1: Remove Power 
from the Drive
1. Remove and lock-out all incoming power to the drive.
Step 2: Remove the 
Protective Covers
1. Disconnect the DPI cable from the HIM assembly (if present).
2. Loosen, but do not remove, the screws that secure the bottom cover to
the drive, then slide the cover down and off the drive chassis.
!
ATTENTION: Remove power before making or breaking cable 
connections. When you remove or insert a cable connector with 
power applied, an electrical arc may occur. An electrical arc 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
O
I
STS
PORT
MOD
NET A
NET B
Disconnect 
DPI cable
=
Tightening torque: 
1.5 N-m (13.3 lb.-in.)