TP-6126 8/02 19Section 3 Setup and Test
3.3 Controller Main Logic Board
Hazardous voltage.
Will cause severe injury or death.
Disconnect all power sources before
opening the enclosure.
DANGER
NOTICE
Electrostatic discharge damage. Electrostatic discharge
(ESD) damages electronic circuit boards. Prevent
electrostatic discharge damage by wearing an approved
grounding wrist strap when handling electronic circuit boards
or integrated circuits. An approved grounding wrist strap
provides a high resistance (about 1 megohm), not a direct
short, to ground.
The controller’s main logic board is mounted in a plastic
housing on the inside of the transfer switch enclosure
door. It is not necessary to open the cover to access the
DIP switches or the PC connector on the circuit board.
Figure 3-6 shows the locations the DIP switches and
connectors on the main logic board.
3
GM21079
1. Hinges
2. Access openings to DIP switches and PC connection
3. Latch
1
2
Figure 3 -5 Controller Housing
GM21364
1. I/O board connection (P3)
2. User interface connections
3. DIP switches
4. Serial port for PC connection (P6)
5. Preferred source switch connection (P7)
6. Supervised transfer switch connection (P8)
7. Programmed-transition interface board (PTIB) connection
(factory connection) (P9)
8. Ground wire
9. Contactor harness connection
10. Serial number decal
11. Terminal strip (inputs, output, Modbus connections) (TB1)
1
3
4
5
6
7
9
11
10
8
2
Figure 3 -6 Controller Board Component Locations
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