Tweco PAK Master 150XL - Manual (Page 29)

Manual 0-2864 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, RUN/SET and STAN-
DARD/LATCH switches
• CURRENT control
• LED indicators for AC Power, TEMP, GAS/
Coolant, and DC.
A-03047
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 Clamp
Work cable with clamp (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. For drag cutting applications
set the control between 30 - 35 amps. The unit has
an automatic fold-back circuit that limits current
to 35 amps during drag cutting.
2. ON/OFF Power Switch
ON position supplies AC power to activate all sys-
tem control circuits. OFF position deactivates con-
trol circuits.
SET SET
RUN RUN ON ON
OFF OFF
TEMP TEMP
AC
GAS
DC
A
120 30
75
50 100
CURRENT CURRENT
1
2 3
4
5
6
7
A-03048
8
LATCH
STANDARD
Figure 4-2 Control Panel