Tweco 150XL CE PAK Master - Manuel (Page 30)

OPERATION 4-2 Manual 0-2826
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 Panel Bulkhead
The Torch Panel Bulkhead 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
Stud used to secure the torch lead shield ring lug.
6. Control Cable Connector
Connector is no longer used. Use connector located on
Rear Panel.
A-02881
2 1
3
4
5
6
Figure 4-3 Torch Bulkhead Panel
D. Rear Panel
1. Primary Power EMI Input Filter, Cable and Strain
Relief
The factory installed EMI Input Filter Assembly
is mounted to the rear panel of the power supply.
A strain relief is supplied to secure the shielded
primary input AC power cable to the EMI Input
Filter Assembly. The input cable is routed through
the strain relief and is connected to input termi-
nals of an input filter. The shielded input power
cable requires two ground connections outside of
the Power Supply:
• Power ground for the cable
• Shielded cable cover ground
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.
3. Secondary Gas Pressure Regulator/Filter Assem-
bly
Pressure Regulator to adjust the secondary input
gas pressure to the Power Supply. The Pressure
Regulator has a built-in air line filter.