Figure 9.5 - Dc Bus Voltage Terminals (200-400 Hp Drives) - Reliance electric 2V4160 Hardware Installation And Troubleshooting Manual

POWER CONNECTIONS
PULL SHIELD TABS IN AND ROTATE SHIELD OUT
CONNECT USING 350MCM TWO HOLE TERMINAL LUGS
TORQUE TO 325IN-LBS
GND DB DC-
DC+ U V
DANGER
D-C BUS CAPACITORS RETAIN HAZARDOUS VOLTAGES
AFTER INPUT POWER HAS BEEN DISCONNECTED.
WAIT FIVE (5) MINUTES FOR THE D-C BUS
CAPACITORS TO DISCHARGE AND THEN CHECK THE
VOLTAGE WITH A VOLTMETER THROUGH THE ACCESS
SLOTS SHOWN ABOVE. VOLTAGE MUST BE 50 VOLTS
OR LESS PRIOR TO SERVICING.
BM
ALLOW 6 INCH RADIUS SERVICE LOOP
WITH INTERCONNECTION WIRING FROM
CONTROL BOARD WIRING TRAY TO
J1 CONNECTOR ON REGULATOR BOARD.
Troubleshooting the Drive
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Initial DC Bus Measuring Points (Inner Door Closed)
(When the bus voltage is 50 VDC or less, the inner
door may be opened and the voltage measured on
the DC bus bars as shown below.)
W R S T
Power Module Interface Board
+
DC Bus Bar Measuring Points (Inner Door Open)
-
Figure 9.5 – DC Bus Voltage Terminals (200-400 HP Drives)
- +
DANGER
DANGER
D-C BUS CAPACITORS RETAIN HAZARDOUS VOLTAGES
AFTER INPUT POWER HAS BEEN DISCONNECTED.
WAIT FIVE (5) MINUTES FOR THE D-C BUS
CAPACITORS TO DISCHARGE AND THEN CHECK THE
VOLTAGE WITH A VOLTMETER THROUGH THE ACCESS
SLOTS SHOWN ABOVE. VOLTAGE MUST BE 50 VOLTS
OR LESS PRIOR TO SERVICING.
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