Tweco FP-82 - Manual (Page 23)

Manual 0-2870 4-1 OPERATION
SECTION 4:
OPERATION
4.01 Introduction
This section describes the power supply operating con-
trols and procedures, identifies the front and rear com-
ponents, and describes the operating procedures.
4.02 Product Features
A. Front and Side Panel Features
1. Control Panel
All operator controls, except gas pressure adjustment,
are on this panel.
A-02992
1
2
3
4
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 and work cable wrap around the
handle for easy storage.
5. Torch Bulkhead Panel
The torch bulkhead panel is under the power supply
cover.
• Pilot Lead Stud
Connects the pilot control wire on the torch to the
unit.
• Control Cable Connector
Connects the torch switch to the unit.
• Gas/Power Lead Connection
Connects the torch gas/negative lead to the unit.
B. Control Panel Features
A-03208
A
1
4
5
6
7
2
3
20
40
60
Operating Controls
1. ON/OFF Power Switch
ON (up) position supplies AC power to activate all
system control circuits. OFF (down) position deacti-
vates control circuits.
2. RUN/SET Switch
RUN (up) position is used for general torch opera-
tion. Torch switch must be held. SET (down) posi-
tion used for setting gas pressure and purging lines.
3. Current Control (A)
Adjustment to set the desired output current up to 40
amps (for drag cutting) or up to 60 amps (for standoff
cutting). Minimum output is approximately 15 amps.
At output settings over 40 amps, control circuitry in
the power supply automatically reduces output cur-
rent to 40 amps if the torch tip contacts the workpiece.