Thermal Dynamics CUTMASTER A40 User Manual

CUTMASTER A40
SERVICE 5-4 Manual 0-4978
5.05 Basic Troubleshooting Guide
!
WARNING
There are extremely dangerous voltage and power levels present inside this unit. Do not attempt to diagnose
or repair unless you have had training in power electronics measurement and troubleshooting techniques.
Problem - Symptom Possible Cause Recommended Action
ON/OFFSwitch
is ON but the A/C
Indicator does not
light
1. Primary power disconnect is in
OFFposition.
2. Primary fuses / breakers are
blown or tripped.
3.Faultycomponentsinunit.
1. Turn primary power disconnect switch to ON position.
2.a)Havequaliedpersoncheckprimaryfuses/breakers.
b)Connectunittoknowngoodprimarypowerreceptacle
3. Return to authorized service center for repair or replacement.
FAULTindicator
ashing,65PSI
indicatorashing
1.INPUTVOLTAGESELECTION
SWITCHsetforincorrectvoltage.
2. Primary input voltage problem.
3.Faultycomponentsinunit.
1.TurnOFFpowertounitthensetINPUTVOLTAGESELECTION
SWITCHtomatchprimaryinputvoltage.
2.Havequaliedpersoncheckprimaryvoltagetoinsureit
meetsunitrequirements.SeeSection2.04.
3. Return to authorized service center for repair or replacement.
TEMPERATURE
indicatorON.FAULT
indicatorashing.
1.Airowthroughoraroundthe
unit is obstructed.
2. Duty cycle of the unit has been
exceeded
3.Failedcomponentsinunit
1. Refer to clearance information – Section 2.04
2. Allow unit to cool.
3. Return to authorized service center for repair or replacement.
GASindicatorOFF,
FAULTandMIN
pressure indicators
ashing.
1. Gas supply not connected to
unit.
2. Gas supply not turned ON.
3. Gas supply pressure too low.
4.AIRPRESSURECONTROL
regulator set too low.
5.Failedcomponentsinunit.
1. Connect gas supply to unit.
2. Turn gas supply ON.
3. Set air supply inlet pressure to unit to 120 psi.
4. Adjust regulator to set air pressure - see Section 4.02.
5.Returntoauthorizedservicecenterforrepairorreplacement.
FAULTand70PSI
indicatorsashing.
1. Shield Cup loose.
2. Torch not properly connected to
power supply.
3. Problem in torch and leads PIP
circuit.
4.Failedcomponentsinunit.
1.Handtightentheshieldcupuntilitissnug.
2. Insure torch ATC is securely fastened to unit.
3. Replace torch and leads or return to authorized service center
for repair or replacement.
4. Return to authorized service center for repair or replacement.
FAULTand75PSI
indicatorsashing.
1. Start signal is active when ON/
OFFSWITCHisturnedtoON
position.
2. Problem in the torch and leads
switch circuit.
3.Failedcomponentsinunit.
1. Start can be active for one of the following:
•Handtorchswitchheldclosed
•Handpendantswitchheldclosed
•CNCSTARTsignalisactivelow
Release the START signal source
2. Replace torch and leads or return to authorized service center
for repair or replacement.
3. Return to authorized service center for repair or replacement.

Thermal Dynamics CUTMASTER A40 Specifications

General

Brand	Thermal Dynamics
Model	CUTMASTER A40
Category	Welding System
Language	English