CUTMASTER 102
Manual 0-4998
SERVICE
5-13
4. Open conductor in torch leads
a) Check continuity
5. Defective Main PCB 1.
b) Measure voltage between J2-2 connector on Main
PCB 1 to test point GND1 for 12VDC. If voltage is
present, replace Main PCB 1.
6. Defective Logic PCB 3.
a) Replace Logic PCB 3.
K. 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 Ventilation 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 Supply
Specifications section 2.04 for duty cycle informa
-
tion.
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.
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 voltage is not
present.
5. Defective Logic PCB 3.
a) Change Logic PCB 3.
L. AC LED ON, TEMP, GAS, DC LED's are OFF,
FAULT Indicator is flashing. MIN PRESSURE
LED is flashing.
1. Gas supply not connected to unit.
a) Connect gas supply to unit.
2. Gas supply not turned ON.
a) Turn gas supply ON.
3. Gas supply pressure too low.
a) Set gas supply pressure to 95-120 psi.
4. Air Pressure Control Regulator set too low.
a) Adjust AIR PRESSURE CONTROL to set pressure
as specified in section 4.02 Setting Operational
Pressure.
5. Faulty Pressure Transducer.
a) Adjust pressure Regulator to maximum. Measure
voltage on Logic PCB 3 between J3-1 to J3-2.
If voltage is more than 2VDC, replace Pressure
Transducer.
6. Faulty Logic PCB 3.
a) Replace Logic PCB 3.
M. INTERNAL ERROR. FAULT Indicator and 90
PSI LED 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.
1. Faulty Logic PCB 3.
a) Replace Logic PCB 3.
N. MAX PRESSURE ERROR. MAX pressure LED
is ON.
1. Gas pressure set too high.
a) Reduce gas pressure.
2. Pressure Regulator set too high.
a) Adjust Pressure Regulator.
2. Defective Pressure Transducer.
a) Adjust pressure Regulator to minimum. Measure
voltage on Logic PCB 3 between J3-1 to J3-2.
If voltage is more than 4 VDC, replace Pressure
Transducer.
3. Defective Logic PCB 3.
a) Replace Logic PCB.
Содержание CUTMASTER 102
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