Tweco 38 CutMaster - Manual (Page 26)

OPERATION 4-2 Manual 0-2964
B. Control Panel
A-03283
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1
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A
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7
1. ON / OFF Switch
Controls input power to the power supply. Up is ON, down is OFF.
2. RUN / SET Switch
RUN (up) position is for general torch operation. SET (down) position is for setting gas pressure and purging
lines.
3. (A) Output Current Control
Sets the desired output current. If the overload protection (fuse or circuit breaker) on the input power circuit
opens frequently, either reduce cutting output, reduce the cutting time, or connect the unit to more adequate
input power. Refer to Section 2 for input power requirements.
4. AC Indicator
Steady light indicates power supply is ready for operation. Blinking light indicates unit is in protective interlock
mode. Shut unit off, shut off or disconnect input power, correct the fault, and restart the unit. Refer to Section 5
for details.
5. TEMP Indicator
Indicator is normally OFF. Indicator is ON when internal temperature exceeds normal limits. Shut unit OFF; let
the unit cool before continuing operation.
6. GAS Indicator
Indicator is ON when adequate input gas pressure is present.
7. DC Indicator
Indicator is ON when DC output circuit is active.