Firepower, a Thermadyne Company FIREPOWER FP-82 - Manual (Page 57)

Manual 0-2871 A-3 APPENDIX
APPENDIX 3: LOGIC PC BOARD LAYOUT
TP12
TP5
TP6 TP10
TP8
TP4 TP3
TP7
TP2 TP1
D20
D21
TP9
D32
D37
A-03156
Logic Board Signals
P1-1 +12 vdc from Main PCB
P1-2 +12 vdc from Main PCB
P1-3 DC Common
P1-4 DC Common
P1-5 W1 ON Signal
P1-6 Tip Sense
P1-7 RUN/SET signal logic low for SET
P1-8 Pressure good signal (Logic low)
P1-9 OVERTEMP signal (Logic low)
P1-10 Inrush done signal from Main PCB
P1-11 CD Enable signal from Main PCB
P1-12 CD Enable signal from Main PCB
P1-13 Open
P1-14 Gas ON signal to Main PCB
P1-15 Logic low CSR signal
P1-16 Logic low PILOT ON signal
P1-17 Logic low DC OK signal
P1-18 Logic low OVERTEMP signal
P1-19 Logic low AC OK signal
P1-20 Return for torch switch
P1-21 Logic low = torch switch signal
P1-22 +12 vdc
P1-23 to current control pot
P1-24 Current control
P1-25 Current control return
P1-26 Gate drive B return
P1-27 Gate drive B signal
P1-28 Gate drive A return
P1-29 Gate drive A signal
P1-30 (-) out signal
P1-31 Current sense
P1-32 Current sense
P1-33 Current sense return
P1-34 Current sense return
P1-35 DC Common
P1-36 DC Common
TP-1 Common
TP-2 CSR (Logic low)
TP-3 Converter enable
TP-4 Gate Drive B
TP-5 Demand Signal
TP-6 Output voltage sense
TP-7 DC ok (Logic low)
TP-8 Gate Drive A
TP-9 Fault (Logic low)
TP-10 Tip sense
Indicators:
D20
CD ON
D21 INV ON
D32 SW ON
D37 DRAG ON