Thermal Dynamics 81 CUTMASTER Service Manual

Manual 0-2957 A-3 APPENDIX
APPENDIX 3: LOGIC PC BOARD LAYOUT
Logic Board Signals
P1-1 +12vdcfrom Main Power PCB
P1-2 +12vdcfrom Main PCB
P1-3 DC Com
P1-4 DC Com
P1-5 MC1 ON signal
P1-6 Tip Sense
P1-7 RUN/SET Signal Logic Low for SET
P1-8 Logic Low = PS1 Pressure Switch
closed = Pressure OK
P1-9 Logic Low = TS1 Closed = OVERTEMP
P1-10 Logic Low = CSR
P1-11 Logic Low = Gas ON
P1-12 Logic Low = DC OK
P1-13 Logic Low = OVTEMP
P1-14 Logic Low = AC OK
P1-15 Logic Low = Torch Switch
P1-16 Logic Low = Torch Switch Return
P1-17 Logic Low = +12vdc
P1-18 Logic Low = Pot High
P1-19 Logic Low = Pot High
P1-20 Pot Low
P1-21 Gate Drive B Return
P1-22 Gate Drive B
P1-23 Gate Drive A Return
P1-24 Gate Drive A
P1-25 - Out Sense
P1-26 Current Sense
P1-27 Current Sense
P1-28 Current Sense Return
P1-29 Current Sense Return
P1-30 DC Com
P1-31 DC Com
P1-32 Not Used
P1-33 I Sense
P1-34 Not Used
P1-35 Not Used
P1-36 TipVolts
INDICATORS:
D13 INV ON
D25 DRAG ON
D33 SWITCH ON
TEST POINTS:
TP-1 Common
TP-2 Current Demand Signal
TP-3 Converter Enable
TP-4 CSR (Logic Low)
TP-5 Not used
TP-6 Fault (Logic Low)
TP-7 DC OK (Logic Low)
TP-8 Tip Sense
TP-9 Current Sense
TP-10 Gate Drive A
TP-11 Gate Drive B
TP9
TP10
TP11
TP3
TP7
TP8
TP5
TP1
TP2
TP4
D13
TP6
Art # A-03654
D25
D33
P1-7
P1-9

Thermal Dynamics 81 CUTMASTER Specifications

General

Brand	Thermal Dynamics
Model	81 CUTMASTER
Category	Welding System
Language	English