Tweco 75XL Plus PAK Master - Manuel (Page 31)

Manual 0-2807 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 specfic functional descriptions
of the Power Supply operating controls and indicators.
A. Front and Side Panel
1. Control Panel
All operator controls, except gas pressure adjustment,
are located on this panel. Power ON/OFF and RUN/
SET/LATCH switches; CURRENT control; indicators
for AC Power, TEMP, GAS, and DC.
1
2
3
4
A-02748
Figure 4-1 Front and Side Panel Connections
2. Access Panel
A panel for access to the bulkhead area containing
the torch connections.
3. Torch Leads Input
Hole in the front panel to feed the torch leads through
to the internal bulkhead connections.
4. Work Cable and Ring Terminal
Work cable with ring terminal (factory installed) for
connecting to work table.
B. Control Panel
A
CURRENT
15
20
25
30
35
60
55
50
45
40
TEMP
AC
GAS
DC
LATCH
SET
RUN ON
OFF
1
2
3
5 6 7
A-02456
4
or
A
A-03625
15
40
60
1
2
3
4
5
6
7
Figure 4-2 Operating Controls
1. Current Control (A)
Adjustment to set the desired output current between
15 to 60 amps. The unit has an automatic fold-back
circuit that limits current to 35 amps if torch tip con-
tacts 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.