Checking Out The Drive With Input Power Off; Figure 10.3 - Dc Bus Voltage Terminals (43 Amp Drives) - Reliance electric GV3000/SE Hardware Reference, Installation, And Troubleshooting Manual

10.4 Checking Out the Drive with Input Power Off

10-4
*AC Input Power
Terminals
(L1, L2, L3)
*DC Bus
Measuring Points
(-)45, (+)47
Figure 10.3 – DC Bus Voltage Terminals (43 Amp Drives)
Use the following procedure to check the drive circuitry with power off:
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.
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.
45 47 48 U V W
PE L1 L2 L3
28-31
GV3000/SE AC Bookshelf Drive Hardware Reference, Version 6.06
*Terminals are located
behind the cover and
front panel.