cutmaster 102
SERVICE 5-14 Manual 0-4998
H. START ERROR FAULT. The FAULT
Indicator and 75 PSI LED flashing.
1. Start signal is active when SW1 is turned to ON
position.
a) 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. Problem in the torch and leads switch circuit
a) Check continuity of torch switch circuit at ATC
pins 3 & 4. See previous illustration.
3. Short in CNC cable
a) Check continuity
4. Defective Logic Pcb (PCB3)
a) Measure voltage at Main PCB between J2-16
to test point GND1 for 12VDC. If voltage is
present, replace Logic PCB
5. Defective Main PCB 1.
a) Replace Main PCB 1.`
I. TIP MISSING FAULT. The FAULT Indicator
and 80 PSI LED is flashing. Gas solenoid
cycles on and off.
1. Torch Shield Cup is loose.
a) Tighten shield cup by hand. Do not over
tighten.
2. Torch tip, electrode, or start cartridge missing.
a) Turn off power supply. Replace missing
part(s).
3. Start Cartridge is stuck.
a) Turn off power supply. Bleed down the system.
Remove the shield cup, tip,start cartridge and
electrode. Check the lower end unit of the
start cartridge for free movement. Replace
the cartridge if the lower end unit does not
move freely.
Art # A-08064
Spring-Loaded
Lower End Fitting
Full Compression 1/8”
Spring-Loaded
Lower End Fitting at Rest /
Full Extension
4. Open conductor in torch leads
a) Check continuity
5. Defective Main PCB 1.
b) Measure voltage at Main Pcb between J2-2
to test point GND1 for 12VDC. If voltage is
present, replace Main PCB 1.
6. Defective Logic PCB 3.
a) Replace Logic PCB 3.
J. AC LED on, yellow TEMP LED is on, red
FAULT Indicator is flashing all three fans
turn on.
1. Air flow through unit is restricted.
a) Provide adequate airflow. See Ventillation
Clearance Requirements section 2.04.
2. Exceeded duty cycle of the power supply.
a) Allow unit to remain on, but at idle, with fan
running to cool power supply. See Power Sup-
ply Specifications section 2.04 for duty cylcle
information.
NOTE
When the unit is turned on the cooling fans
MOT1 & MOT2 will remain off. (In earlier units
MOT1 will turn on for .one (1) second and then
turns off) The fans will turn on when a START
signal ( Torch Switch, Remote Pendant switch, or
CNC START) is active and will remain on for ten
(10) minutes after the START signal is removed.
If an over temperature condition occurs, the fans
will continue to run while the condition exists
and for a ten (10) minute period after the condi-
tion is cleared.
3. Defective 40A PCB 5.
Measure for 12VDC on the 40A PCB 5 between
J4-4 to J4-10. Replace 40A PCB 5 if voltage is
not present.
4. Defective Main PCB 1.
a) Measure for 12VDC on Main PCB 1 between
J2-21 to TP GND1. Replace Main PCB 1 if volt-
age is not present.
5. Defective Logic PCB 3.
a) Change Logic PCB 3.
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