Tweco 15XC CE Merlin PAK - Manual (Page 35)

Manual 0-2529 3 - 1 OPERATION
SECTION 3: OPERATION
3.1 OPERATING CONTROLS
Function
ON position activates all system control circuits.
OFF position deactivates control circuits.
RUN position is used for torch operation.
SET position is used for setting gas pressures.
PURGE position is for purging the plasma gas line.
Selects output current from 50 to 150 amps (see Cutting
Speeds (page 3-26) for applications on various materials
and thicknesses). Current control is disabled when Remote
Operator Control Panel is used.
Green light indicates AC power is being supplied to the
system when the ON/OFF switch is in ON position.
Green light indicates proper operating temperature. Red
light indicates overheating. Unit must be allowed to cool.
In SET position, yellow light in SET mode indicates gas
pressure switches are satisfied when gas is flowing to the
torch. Light goes out in PURGE or RUN mode.
Yellow light indicates adequate coolant pressure.
Yellow light indicates proper coolant conductivity. Light
out indicates excessive coolant conductivity (resistivity less
than 0.1 M
Ω
). Replace coolant and de-ionizer cartridge.
Yellow light indicates main contactor closure supplying
voltage to the power supply output and cutting current is
available. Torch switch must be closed.
Yellow light indicates pilot arc contactor closure. Light
goes out when cutting arc is established and comes back
on if cutting arc is interrupted.
Control Indicator
1. ON/OFF Switch
2. RUN/SET/PURGE
Switch
3. Current Control
4. AC Power Indicator
5. TEMP Indicator
6. GAS Indicator
7. Coolant Pressure Indicator
8. Coolant Conductivity
Indicator
9. DC Indicator
10. PILOT Indicator
Figure 3-A PAK 15XC Operating Control Panel
OFF
ON RUN
PURGE
SET
A-00887
AMPS
50
75
150
125
100
AC TEMP GAS PRES.
COOLANT
COND. DC PILOT
1 2
3
4
5 6 7 8
9
10