Victor CUTMASTER 102, Service Manual

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CUTMASTER 102
SERVICE Manual 0-4998
5-12
If not correct, replace Main PCB 1.
5. Defective Ribbon cable.
a) Check continuity of the ribbon cable connecting
between the Main PCB 1 and the Logic PCB 3.
6. Defective Logic PCB 3.
a) Replace Logic PCB 3.
H. PARTS-IN-PLACE (PIP) FAULT. The FAULT
Indicator and 70 PSI LED flashing, After 20
seconds fan MOT 1 turns ON.
1. Shield Cup loose
a) Hand tighten the shield cup to close the PIP switch.
2. Torch not properly connected to power supply
a) Insure torch ATC is securely fastened to unit.
3. Problem with torch and leads PIP circuit
a) Disconnect the Torch from the unit and check
continuity of torch PIP circuit at ATC pins 1 & 2. If
open, check torch and leads for open lead or PIP
switch.
Negative / Plasma Lead
4 Torch Switch
3 Torch Switch
2 PIP
1 PIP
Pilot Lead
Art # A-08124
Torch Lead Connector
4. Defective Logic PCB 3
a) Measure the voltage on Main PCB 1 between J2-17
to test point GND1 for 12VDC. If the voltage is less
than 2VDC, replace Logic PCB
5. Defective Main PCB 1
a) Replace Main PCB 1
I. START ERROR FAULT. The FAULT Indicator
and 75 PSI LED flashing.
1. Start signal is active when SW1 is turned to ON posi-
tion.
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 3
a) Measure voltage at Main PCB 1 between J2-16 to
test point GND1 for 12VDC. If voltage is present,
replace Logic PCB 3.
5. Defective Main PCB 1.
a) Replace Main PCB 1.
J. 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_AC
Spring-Loaded
Lower End Fitting
Full Compression
Spring-Loaded
Lower End Fitting at Reset /
Full Extension