Tweco CE PAK Master 150XL Without Latch Circuit - Manual (Page 34)

OPERATION 4-2 Manual 0-2696
3. RUN/SET Switch
RUN position is used for torch operation. SET po-
sition used for setting gas pressure and purging
lines.
4. AC Power Indicator
Once ON/OFF power switch is set to ON, green
indicator will blink ON then OFF for approxi-
mately eight seconds and then stay ON. Indicates
operating power is present in the unit.
5. TEMP Indicator
Normally OFF. Yellow indicator will come ON
when the internal temperature sensors detect tem-
peratures above normal limits. The unit should be
allowed to cool before continuing operation.
6. GAS/Coolant Flow OK Indicator
This is both a gas pressure and coolant flow indi-
cator.
A green indicator ON means the input gas pres-
sure is set to 40 psi (2.8 bar) or higher, and there is
adequate coolant flow of greater than 0.5 gpm
The Indicator will be OFF when the pressure falls
below 40 psi (2.8 bar) or there is not enough cool-
ant flow (less than 0.5 gpm) caused by damaged
hose(s), clogged filter(s), etc.
7. DC Indicator
Green indicator will come ON while the torch
switch is pressed.
C. Torch Bulkhead Panel
The Torch Bulkhead Panel is located under the Access
Panel.
1. Plasma (+) Gas Lead Connection
Left-hand thread fitting to connect the torch
plasma lead to the unit.
2. Secondary Gas Lead Connection
Fitting to connect the torch secondary lead to the
unit.
3. Coolant Supply (-) Lead Connection
Fitting to connect the torch coolant supply lead to
the unit.
4. Coolant Return Lead Connection
Left-hand thread fitting to connect the torch cool-
ant return lead to the unit.
5. Torch Lead Shield Stud (see NOTE)
Stud used to secure the torch lead shield ring lug.
NOTE
Used with Shielded Torch Leads only.
6. Control Cable Connector
Connector used to interface the Torch Control Cable
to the unit. In Hand Torch applications interfaces
the Torch Switch to the unit. In Machine Torch
applications interfaces either Remote Hand Pen-
dant Control Cable (unshielded Torch Leads) or
CNC Control Cable (shielded Torch Leads).
A-02881
2 1
3
4
5
6
Figure 4-3 Torch Bulkhead Panel
D. Rear Panel
1. Primary Input Power Cable Strain Relief
Primary input power cable strain relief for the pri-
mary power cable capable of handling the input
voltage designed for this unit. Refer to Section
6.06, Parts List for available cable sizes.
2. Plasma Gas Pressure Regulator/Filter Assembly
Pressure Regulator to adjust the plasma input gas
pressure to the Power Supply. The Pressure Regu-
lator has a built-in air line filter.