Tweco FP-55 - Manual (Page 23)

Manual 0-2846 4-1 OPERATION
SECTION 4:
OPERATION
4.01 Introduction
This section identifies the front and rear components, and
describes the power supply operating controls and pro-
cedures.
4.02 Functional Overview
The Firepower FP-55 Power Supply provides operating
flexibility through the use of simple controls.
4.03 Operating Controls
This subsection provides specfic functional descriptions
of the power supply operating controls and indicators.
A. Front and Side Panels
1. Control Panel
All operator controls, except gas pressure adjustment,
are located on this panel: power ON/OFF switch,
RUN/SET switch; CURRENT control; LED indicators
for AC Power, TEMP, GAS, and DC.
A-02772
1
2
3
4
Figure 4-1 Front and Side Panel Connections
2. Torch Leads Input
Hole in the front panel to feed the torch leads through
to the internal bulkhead connections.
3. Work Cable and Clamp
20 ft. (6.1 m) work cable with clamp, factory installed.
4. Roll Handle/Torch Leads Wrap
The torch leads wrap around the handle for easy stor-
age. Factory installed torch & leads.
B. Control Panel
A-03641
1
20
25
30
35
40
4
5
6
7
2
3
A
Figure 4-2 Operating Controls
1. ON / OFF Power Switch
ON position supplies AC power to activate all sys-
tem control circuits. OFF position deactivates control
circuits.
2. RUN / SET Switch
RUN position is used for general torch operation.
Torch switch must be held. SET position used for set-
ting gas pressure and purging lines.
3. Current Control (A)
Adjustment to set the output current between 20-40
amps.
4. AC Power Indicator
Green indicator will blink ON-OFF for approximately
eight seconds and then stay ON after the ON/OFF
power switch is set to ON. Indicates operating power
is present in the unit.