4–12 Component Test Procedures
Publication 1336 IMPACT-6.2 – March 1998
The Gate Driver Board is located between the Main Control Board
and the Main Chassis. If one or more Power Modules has been
replaced, you must test the Gate Driver Board.
Figure 4.5
Gate Driver Board Test
AB0339A
F3
VR2
VR3
VR5
VR6
VR1
VR4
F1
!
ATTENTION: Disconnect and lock out power from
the drive before disassembling the drive. Failure to
disconnect power may result in death or serious injury.
Verify bus voltage by measuring the voltage between
+DC and –DC on terminal block TB1. Do not attempt
to service the drive until the bus voltage has discharged
to zero volts.
Test 5 – Testing the Gate
Driver Board
AB Spares