OPERATION 28 Manual 0-2470
4.01 OPERATING CONTROLS (continued)
INDICATOR
1. ON/OFF Switch
2. RUN/SET Switch
3. AC Indicator
4. TEMP Indicator
5. PIP (Parts-In-Place)
Indicator
6. GAS Indicator
7. DC Indicator
8. PILOT Indicator
9. Corner Slowdown
Adjustment
10. Current Control
11. Pressure Gauge
12. Pressure Control
FUNCTION
ON position supplies AC power to activate all system control circuits. OFF
position deactivates control circuits.
RUN position is used for torch operation. SET position is used for setting gas
pressure and purging lines.
Green LED light indicates AC input power is present in the system when the
ON/OFF switch is in ON position.
Green LED light indicates proper operating temperature range. Red light
indicates overheating; unit must be allowed to cool.
Yellow LED light indicates proper torch assembly. Light goes out if the shield
cup is not fully seated against the PIP pins in the torch body.
Yellow LED light (with RUN/SET switch in SET position) indicates gas pressure
is above the minimum (42 psi or 2.9 BAR) to the torch. Light goes out in RUN
position until torch is activated.
Yellow LED light indicates adequate DC power output for main arc when the
torch is activated.
Yellow LED light indicates pilot arc circuit is activated. Light goes out when
main arc is established and comes back on if the main arc is interrupted and
pilot arc restarts.
Sets corner slowdown (CSD) output to a percentage of main output. Minimum
output during CSD is 15 amps. Turn fully clockwise for maximum output (100%
of main current) during CSD. See Corner Slowdown Operation, page 29.
Selects output current.
Displays input pressure to the torch.
Adjusts pressure from the regulator. Pull knob out and turn clockwise to
increase pressure to desired level.
Table 4-A Operating Controls
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