Rockwell Automation GV3000/SE V.6 Regulator Board 0-56921-6xx, 413338-6BU, 0-56940-6xx, 814.61.00 - Manual (Page 22)

3-2 GV3000/SE Drive Version 6 Regulator Board Installation Instructions
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. Remove the cover by loosening the four cover screws.
Important: Read and understand the warning labels on the inside of the drive before
proceeding.
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).
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 shown in figure 3.1.
Step 3. Remove the Keypad Bracket from the Drive
Step 3.1. Record the wiring to the Regulator board terminal strip.
Step 3.2. Disconnect the wiring from the Regulator board terminal strip.
Step 3.3. Drives with option boards only: Record the wiring connections to the option
board terminals. Disconnect this wiring from the option board terminal strip.
Step 3.4. Loosen the thumb screw on the left side of the keypad bracket. Hold the
bracket on the left and lift it up and to the left to separate it from the keypad
support bracket.
Figure 3.1 – DC Bus Voltage Terminals (7.5 to 10 HP @ 460 VAC Drives)
!
ATTENTION: The drive contains printed circuit boards that are
static-sensitive. An anti-static wristband should be worn by any person
who touches the drive components, connectors, or wiring. Erratic
machine operation and damage to, or destruction of, equipment can
result if this precaution is not followed.
W/T3 V/T2 U /T1
+
S/L2 1 0V 1 0 COM
Motor Leads
AC Power
Input Leads
DC Bus
Volts
R/L1 T/L3
– + –