Overview, continued, Contactor control board, Millennium systems – GE Industrial Solutions GPS 4812_24 User Manual
Page 62: Vector systems
Galaxy Power System 4812/24
8 - 2 Circuit Boards
Issue 9 Januray 2008
Overview, continued
Contactor Control
Board
Contactor control boards provide four functions:
•
Monitor and report shunt voltage to the controller
•
Monitor and report contactor status to the controller
•
Operate the contactor based on controller commands
•
Operate or block the contactor based on maintenance switch
settings
Millennium
Systems
Each initial and supplemental cabinet in a Millennium system has a Bay
Interface Card (BIC) that attaches to the cabinet’s terminal board (BLJ).
The BIC provides controller access to alarm monitoring, battery
voltages, battery currents, and temperature probes in the cabinet through
the serial rectifier bus. See Figure 12-3.
Vector Systems
The initial cabinet contains the Vector controller, which consists of a
GCM3 control board mounted on the BLJ terminal connection board.
Supplemental cabinets do not require a GCM3 control board or BIC. See
Figure 12-5.