Bryant ASPAS1BBA015 Manuale Utente Scaricare il pdf (Pagina 73)

Page 73

SECTION 4.1

DESCRIPTION AND COMPONENTS

DC CONTROL

PART 4

J1 PIN WIRE CIRCUIT FUNCTION

1 4 Field boost current to rotor (about 9-10 volts DC).

2 86 Low oil pressure shutdown. Automatic shutdown occurs when Wire 85 is grounded by loss of oil

pressure to the LOP.

3 23 Switched to ground for Transfer Relay (TR) operation.

4 194 12 VDC output from the circuit board for transfer relay, present in AUTO or MANUAL operation.

5 56 Energized (12 volts DC) by circuit board's crank relay (K1) to crank the engine.

6 18 Engine shutdown. Circuit is grounded by circuit board action to ground the engine

7 14 12 VDC output for engine run condition. Used for fuel solenoid (FS), battery charge relay (BCR),

and hourmeter if equipped.

8 66A AC input to the board for crank terminate and overspeed protection.

9 239 B+ input when SW1 is in the MANUAL position.

10 15A B+ input into the board for source voltage when SW1 is in the AUTO or MANUAL position.

11 17 B+ output to SW1 for manual start operation.

12 15 12VDC source voltage for the circuit board. Also runs timer for exerciser.

13 0 Common ground.

14 225 Transformer reduced "Utility" source sensing voltage.

15 224 Transformer reduced "Utility" source sensing voltage.

16 NOT USED

17 NOT USED

J2 PIN WIRE CIRCUIT FUNCTION

1 NOT USED

2 85 High temperature oil engine safety.

3 351 Input set exercise. Signal to ground to set.

4 NOT USED

5 NOT USED

225194 151886 15A66A

2244235614 17 0

239

229

15B

351

OFF

SPARE

50 Hz OPERATION

REMOTE NOT AUTO

20 VAC SENSE TRANSFORM

J1 CONNECTOR

J2 CONNECTOR

456

8 9 10 11

13 14

16 17

Figure 3. Circuit Board

1 2 ... 68 69 70 71 72 73 74 75 76 77 78 ... 143 144

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Bryant ASPAS1BBA015 Manuale Utente Pagina 73

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