Rockwell Automation GV3000/SE AC Drive AutoMax Network Communication Board, M/N 2AX3000 - Manual (Page 42)

Installation 2-33
Unless otherwise indicated, keep all hardware that is removed. You will need it for
reassembly. This includes screws, lock washers, and rivets.
Important: Read and understand the warning labels on the outside of the drive
before proceeding.
Step 1. Shut Down the Drive
Step 1.1 Disconnect, lock out, and tag all incoming power to the drive.
Step 1.2 Wait five minutes for the DC bus capacitors to discharge.
Step 1.3 Disconnect all faceplate wiring.
Step 1.4 2 to 15 A drives: Remove the cover by removing the cover screw on the
faceplate of the drive. See figure 2.17.
24 to 30 A drives: Remove the cover by removing the cover screw on the
faceplate of the drive. Then remove the front panel by removing the two
screws on the faceplate of the drive. See figure 2.18.
Important: The cover is connected to the drive by the keypad/display cable. To
disconnect the cover, use a screwdriver to slide the cable out of the
connector.
Step 2. Verify That the DC Bus Capacitors are Discharged
Step 2.1 Use a voltmeter to verify that there is no voltage at the drive’s AC input
power terminals (R/L1, S/L2, T/L3). Refer to figure 2.17 or 2.19 for the
location of these terminals.
Step 2.2 Ensure that the DC bus capacitors are discharged. To check
DC bus potential:
a. Stand on a non-conductive surface and wear insulated gloves.
b. Use a voltmeter to measure the DC bus potential at the DC bus power
terminals ((–)45, (+)47)) shown in figure 2.17 or 2.19.
Step 2.3 24 to 30 amp drives: Reattach the front panel after checking the DC bus
potential.