Victor CUTMASTER 102 - Page 64

CUTMASTER 102
SERVICE Manual 0-4998
5-18
Code displayed after START signal is activated,
during main transfer
1. Ferrite on Ribbon cable between Logic PCB J1 and
Main PCB J2 broken or loose
2. Ferrite on harness between J13 on Main PCB to J4 on
40A PCB broken or missing.
3. WiresSEC1andSEC2routedtooclosetoU2on40A
PCB
4. 40A PCB needs to be replaced if earlier than rev AD
C. SHORTED TORCH FAULT. FAULT indicator
and 85 PSI LED are flashing at 5 cycles per
second.
This mode is a non-latched mode.
1. While using an Automation Torch at current settings
above 40 amps, the tip has contacted the work piece.
a) Checkstandoffheight
2. Air restriction in torch resulting in low voltage during
pilot.
a) Checktorchconsumablesforwearordebris.
3. Low voltage during cutting due to torch or consumable
problem.
a) Checktorchconsumablesforwearordebris.
In all three cases, to reset the machine, remove the START
signal.
D. AC LED ON, TEMP LED OFF, GAS LED ON,
gas flowing, DC LED ON, Fault Indicator OFF,
No arc in torch.
1. Defective Main PCB 1.
a) InstalljumperonMainPCB1betweentestpoint
GND1 to terminal TIP1.
b) ApplySTARTsignal.IfPilotstarts,replaceMain
PCB 1.
E. AC LED ON, TEMP LED OFF, GAS LED ON,
gas flowing, DC LED ON, Fault Indicator OFF,
Pilot Arc is intermittent.
1. Defective Main contactor W1.
a) CheckW1perPrePower-Upchecks.
2. Defective Logic PCB 3
a) Measurefor12VDConMainPCBbetweentest
Point GND1 to J2-8. If 12VDC is present, replace
Logic PCB 3.
3. Defective Main PCB 1.
a) ReplaceMainPCB1.
F. INTERNAL ERROR. Fault Indicator and 90 PSI
Indicators are flashing.
1. There has been a microprocessor problem.
a) TurnON/OFFSWITCHtoOFFpositionandthenturn
to ON position to clear the error.
2. Defective Logic PCB 3.
a) ReplaceLogicPCB3.
G. Fans MOT 1-3 do not turn ON after a START
signal is activated.
1. Defective Logic PCB 3.
a) MeasurevoltageatJ1-14toJ1-25onLogicPCB
3 for 12VDC. The voltage should drop to less than
2VDC after a START signal is active. If the voltage
remains at 12VDC replace the Logic PCB 3.
NOTE
When the unit is turned ON the cooling fans MOT
1-3 will remain OFF. (In earlier units MOT 1 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 tem-
perature condition occurs, the fans will continue
to run while the condition exists and for a ten (10)
minute period after the condition is cleared.
2. Measure for 12VDC on the Logic PCB 3 between J7-1
to J7-2 after the START signal is activated. If voltage
is not present replace Main PCB 1.
H. Fan MOT 1 does not turn ON after START
signal is activated. (MOT 2 & MOT 3 do turn
ON)
1. Defective Main PCB 1
a) TurnSW1toOFFposition.TurnSW1backtoON
position and measure for 12VDC between J7-1 to
J7-2 before START signal is activated. If no voltage
is present, replace Main PCB 1.
2. Defective MOT 1
a) Checktobesurethereisnophysicalobstructions
preventing MOT 1 fan blades from turning. Replace
MOT 1.
I. Either MOT 2 or MOT 3 do not turn ON after
START signal is activated.
1. Fan wires not connected to 40A PCB 5
a) Checkandreconnectto40APCB5.
2. Defective fan.
a) Checktobesurethereisnophysicalobstruc-
tions preventing fan blades from turning. Replace
respective fan.