Troubleshooting 10-9
1560D-UM051D-EN-P – February 2005
IGDPS Boards MV SMC units provided with optional stop capabilities (soft stop or pump
control) utilize isolated gate drive power supply (IGDPS) boards. These
boards provide a continuous source of power to the gate drive boards. The
IGDPS boards are fed from a 50 V DC power supply provided with the
MV SMC.
The circuitry for the IGDPS is encapsulated in epoxy. As a result the board
can not be field repaired and there are no internal test points or
adjustments available. If one of the six (6) isolated 20 V DC outputs fails,
the entire board must be replaced.
Output
Detail B
Detail B
Channel Number Labels
Input Connection Terminal
Output
Detail B
Detail B
Channel Number Labels
Input Connection Terminal
Detail B
Channel Number Labels
Input Connection Terminal
Figure 9.3 – IGDPS Board
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