Checking out the drive with input power off, 4 checking out the drive with input power off – Rockwell Automation GV3000/SE AC Bookshelf Drive Hardware Ref, Installation, and Troubleshooting User Manual
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10-4
GV3000/SE AC Bookshelf Drive Hardware Reference, Version 6.06
10.4 Checking Out the Drive with Input Power Off
Use the following procedure to check the drive circuitry with power off:
Step 1. Disconnect, lock out, and tag all incoming power to the drive.
Step 2. Wait five minutes for the DC bus capacitors to discharge.
Step 3. 24 to 43 A drives only: Remove all wiring from the face of the drive. Then
remove the drive’s cover and front panel.
Figure 10.3 – DC Bus Voltage Terminals (43 Amp Drives)
PE L1 L2 L3
45 47 48 U V W
28-31
*AC Input Power
Terminals
(L1, L2, L3)
*DC Bus
Measuring Points
(-)45, (+)47
*Terminals are located
behind the cover and
front panel.
!
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 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.