CutMaster True Service Manual - Victor Technologies - Europe
CutMaster True Service Manual - Victor Technologies - Europe
CutMaster True Service Manual - Victor Technologies - Europe
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CUTMASTER 25mm<br />
I. START ERROR FAULT. The FAULT<br />
Indicator and 75 PSI LED flashing.<br />
1. Start signal is active when SW1 is turned to ON<br />
position.<br />
a) START can be active for one of the following:<br />
• Hand torch switch held closed<br />
• Hand pendant switch held closed<br />
• CNC START signal is active low<br />
Release the START signal source.<br />
2. Problem in the torch and leads switch circuit<br />
a) Check continuity of torch switch circuit at ATC<br />
pins 3 & 4. See previous illustration.<br />
3. Short in CNC cable<br />
a) Check continuity<br />
4. Defective Logic PCB 3<br />
a) Measure voltage at Main PCB 1 between J2-16<br />
to test point GND1 for 12VDC. If voltage is<br />
present, replace Logic PCB 3.<br />
5. Defective Main PCB 1.<br />
a) Replace Main PCB 1.`<br />
J. TIP MISSING FAULT. The FAULT Indicator<br />
and 80 PSI LED is flashing. Gas solenoid<br />
cycles on and off.<br />
1. Torch Shield Cup is loose.<br />
a) Tighten shield cup by hand. Do not over<br />
tighten.<br />
2. Torch tip, electrode, or starter cartridge missing.<br />
a) Turn off power supply. Replace missing<br />
part(s).<br />
3. Starter Cartridge is stuck.<br />
a) Turn off power supply. Bleed down the system.<br />
Remove the shield cup, tip,start cartridge and<br />
electrode. Check the lower end unit of the<br />
start cartridge for free movement. Replace<br />
the cartridge if the lower end unit does not<br />
move freely.<br />
4. Open conductor in torch leads<br />
a) Check continuity<br />
5. Defective Main PCB<br />
b) Measure voltage at Main Pcb between J2-2<br />
to test point GND1 for 12VDC. If voltage is<br />
present, replace Main PCB<br />
6. Defective Logic PCB<br />
a) Replace Logic PCB<br />
K. AC LED on, yellow TEMP LED is on, red<br />
FAULT Indicator is flashing.<br />
1. Air flow through unit is restricted<br />
a) Provide adequate airflow. See Ventillation<br />
Clearance Requirements section 2.04.<br />
2. Exceeded duty cycle of the power supply.<br />
a) Allow unit to remain on, but at idle, with fan<br />
running to cool power supply. See Power Supply<br />
Specifications section 2.04 for duty cylcle<br />
information.<br />
NOTE<br />
When the unit is turned on the cooling fans<br />
MOT1 &2 will remain off. (In earlier units MOT1<br />
will turn on for .one (1) second and then turns<br />
off) The fans will turn on when a START signal<br />
( Torch Switch, Remote Pendant switch, or CNC<br />
START) is active and will remain on for ten (10)<br />
minutes after the START signal is removed. If an<br />
over temperature condition occurs, the fans will<br />
continue to run while the condition exists and<br />
for a ten (10) minute period after the condition<br />
is cleared.<br />
3. Fan(s) not turning<br />
a) Measure voltage at plug between J7-1 to J7-<br />
2 and between J8-1 to J8-2 on Main Pcb for<br />
12VDC If voltage is present replace fan.<br />
4. Defective Main PCB<br />
a) Measure voltage at plug between J7-1 to J7-<br />
2 and between J8-1 to J8-2 on Main Pcb for<br />
12VDC. If voltage is missing at either receptacle,<br />
replace Main PCB.<br />
5. Defective Logic PCB<br />
a) Replace Logic PCB<br />
SERVICE 5-14 <strong>Manual</strong> 0-5081
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