Thermal Dynamics CUTMASTER 102 Service Manual

cutmaster 102
SERVICE 5-16 Manual 0-4998
3. Defective Main PCB
a) Replace Main PCB
If gas DOES flow out of SOL1 when the unit is in SET
mode, reconnect SOL1 to the ATC connector.
4. Defective torch solenoid.
a) Measure the coil terminals of the torch mounted
gas solenoid SOL2 for 24vac. If present, re-
place SOL2.
5. Defective Main PCB 1.
a) Measure on Main PCB between J2-20 to GND1
for less than 2VDC.
If voltage is 12VDC replace Main PCB 1
b) Measure on Main PCB between J2-11 to GND1
for less than 2VDC. If voltage is less than
2VDC replace Main PCB
6. Defective Logic PCB 3.
a) Measure on Main PCB 1 between J2-11 to GND1
for less than 2VDC. If voltage is 12vdc, replace
Logic PCB 3.
Q. Cannot adjust gas pressure.
1. Inlet gas pressure is too low
a) Increase inlet gas pressure to 95-120 psi
2. Faulty regulator.
a) Replace Regulator.
3. Faulty Pressure transducer. (Air flow changes but
display does not)
a) Measure on Main PCB between J2-11 to GND1
while adjusting thePressure regulator from
Min to Max. VOltage should adjust from 0-
4.5VDC. If voltage does not change, Replace
the Pressure Transducer.
4) Faulty Logic PCB 3.
a) Replace PCB 3.
5.08 Pilot Arc Problems
A. AC LED on, TEMP LED off, GAS LED on.
Nothing happens when torch switch or
remote switch is closed ( Or CNC START
signal is active) No gas flow, DC LED OFF.
1. Problem in the torch and leads switch circuit (or
remote pendant or CNC signal missing
a) For hand torches, Check continuity of torch
switch circuit at ATC pins 3 & 4.
Negative / Plasma Lead
4 Torch Switch
3 Torch Switch
2 PIP
1 PIP
Pilot Lead
Art # A-08124
b) For machine torches using a remote pendant,
Check continuity of Pendant switch circuit
c) Check CNC START signal
2. Defective Logic PCB
a) Jumper on Main PCB between J2-16 and test
point GND1. If gas does not flow, replace
Logic PCB
b) With START signal active, measure voltage
on Main PCB between test points GND1 to
I_DMD1 for 1.4VDC. Replace Logic PCB if
voltage is not present.
3. Defective Main PCB
a) With START Signal active, measure voltage
on Main PCB between test points GND1 to
I_DMD1 for 1.4 VDC. Replace Main PCB if
voltage is present.

Thermal Dynamics CUTMASTER 102 Specifications

General

Brand	Thermal Dynamics
Model	CUTMASTER 102
Category	Welding System
Language	English