APPENDIX
A-6
Manual 0-2972
Main Power PC Board Signals
J1-1
+12vdc to Logic PCB
J1-2
+12vdc to Logic PCB
J1-3
Ground
J1-4
Ground
J1-5
Logic Low = - W1 on Signal
J1-6
Ground
J1-7
RUN / RAPID AUTO RESTART /SET Signal Logic
Low for SET
J1-8
Logic Low = PS1 Closed=Pressure OK
to Logic PCB
J1-9
Logic Low = TS1 (or TS2) Closed = Overtemp
J1-10
Ground
J1-11
Ground
J1-12
Ground
J1-13
28VAC A
J1-14
Logic Low = Gas on Signal from Logic PCB
J1-15
Logic Low = CSR Signal to Logic PCB
J1-16
Ground Signal
J1-17
Logic Low = DC OK Signal from Logic PCB
J1-18
Logic Low = OVERTEMP signal from Logic PCB
J1-19
Logic Low = AC OK signal from Logic PCB
J1-20
Return
J1-21
Logic Low = torch switch signal to Logic PCB
J1-22
+12 vdc to Logic PCB
J1-23
Pot High
J1-24
Pot Wiper
J1-25
Pot Low
J1-26
Gate Drive B Return from Logic PCB
J1-27
Gate Drive B from Logic PCB
J1-28
Gate Drive A Return from Logic PCB
J1-29
Gate Drive A from Logic PCB
APPENDIX 4: MAIN POWER PC BOARD LAYOUT
Art #A-03751
Fuse
(F1)
E1
E2
E3
E12
E11
E22
E35
E4
E13
E15
E16
E5
E20
E7
E19
E8
E21
E18
E10
E9
J1
J2
J5
J9
J3
J23
J4
J22
TP5
TP1
E23
E25
E26
E24
E28
E31
E32
E28
E30
E29
E33
TP13
IGBT
E38
E40
E39
E41
Output
Diode
E6
E27
E37
E43
E42
E36
E17
J21
E34
J20
E14
J26
J8
LT1
J18
J19
TP2
TP10
TP18
TP14
