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The unit power supply board converts 115V AC input into regulated +5V DC and ±12V DC control voltages. These control voltages are routed through the power stage interface board to provide power to all the printed circuit boards.The power stage interface board is used as the chief interface between the main control board and other boards of the system.
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This board is responsible for distributing power and control signals to and from the main control board, gate interface board, field-pulse transformer board, feedback board, and unit power supply. |
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119524 119522 129708-01 Description: |
Ensure that power to the Drive is removed.The Power Stage Interface Board is located on the front side of the 2nd swing down cabinet in. |
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Loosen the two thumb screws at the top of the first swing down panel, and carefully swing the complete panel down toaccess the PSI Board. |
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Disconnect all ribbon cables and wire connectors (J2 - J14 andTB2) at the Power Stage Interface Board. All potentialconnections that may need to be disconnected are identified. |
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