Tweco 150XL CE PAK Master - Manuel (Page 29)

Manual 0-2826 4-1 OPERATION
SECTION 4:
OPERATION
4.01 Introduction
This section provides a description of the Power Supply
operating controls and procedures. Identification of the
Front and Rear Panel components is followed by operat-
ing procedures.
4.02 Operating Controls
This subsection provides specific functional descriptions
of the Power Supply operating controls and indicators.
A. Front and Access Panel
1. Control Panel
All operator controls, except gas pressure adjust-
ment, are located on this panel and include:
• Power ON/OFF and RUN/SET switches
• CURRENT control
• Indicators for AC Power, TEMP, GAS/Cool-
ant, and DC.
A-02866
1
2
3
4
5
Figure 4-1 Front and Access Panels
2. Access Panel
A panel to gain access to the bulkhead area con-
taining the torch connections.
3. Torch Leads Input
Rubber Boot and hole in the front panel to feed
the torch leads through to the internal bulkhead
connections.
4. Work Cable and Ring Lug
Work cable with ring lug (factory installed).
5. Lifting Eye
Used to lift the Power Supply with cable and hook.
B. Control Panel
1. Current Control
Adjustment to set the desired output current be-
tween 30-120 amps. The unit has an automatic
fold-back circuit that limits current to 35 amps if
torch tip contacts the workpiece.
2. ON/OFF Power Switch
ON position supplies AC power to activate all sys-
tem control circuits. OFF position deactivates con-
trol circuits.
SET
RUN ON
OFF
TEMP
AC
GAS
DC
A
120 30
75
50 100
CURRENT
1
2 3
4
5
6
7
A-02078
Figure 4-2 Control Panel
3. RUN/SET Switch
RUN position is used for torch operation. SET po-
sition used for setting gas pressure and purging
lines.