EN
3.0
DESCRIPTION OF FRONT PANEL CON-
TROLS
3.1
FRONT PANEL 350A C
Picture 1.
1
5
6
7
8
9
1 - Welding system selector:
In position
press the torch button to start welding, and re-
lease to stop.
In position
press the torch button to deliver gas; on re-
lease, wire feed and current are activated; press again to stop wire
feed and current and release to shut off the gas supply.
In position
the welder operates in timed mode; press the
torch button to start the welding phase, which stops automatically
after the time interval as set on the timer potentiometer.
2 - Machine ON indicator lamp
3 - Machine overheating indicator lamp
4 - Wire feed speed control -potentiometer
5 - Spot welding time control potentiometer, from 0.3 to 10 sec-
onds (operating only with selector (Ref. 1 - Picture 1 Page 5.) set
to position
6 - Wire feed motor acceleration time control potentiometer.
7 - Control potentiometer to regulate time during which welding
power is maintained after the relative shutdown signal. In practice,
at the end of welding, if this time is too short, the wire remains
stuck in the bath or protrudes too far from the torch contact tube;
otherwise, if the control time is too long, the wire remains stuck in
the torch contact tube, often causing damage to the latter.
8 - Euro torch connector
9 - Quick connectors for ground clamp
10 - Power switch.
11 - Welding voltage adjustment switch.
INTERNAL PANEL CONTROLS
- Auxiliary circuit safety fuses
- Wire feed gearmotor
DESCRIPTION OF FRONT PANEL CONTROLS
2
3
4
10
11
3.2
FRONT PANEL 350A S AND 350A S(W)
Picture 2.
13
11
16
11 - Welding tension regulation commutator
12 - Earth cable socket
13 - Control transformer protection fuse
14 - Pulling set protection fuse
15 - ON lamp
16 - Power button and regulator commutator
4.0
USE WITH CORED WIRE. (FILCORD 353C)
Equipment allows polarity changeover for welding with special
cored wire types. Polarity is indicated by wire specification.
Polarity DC-
Picture 3.
Polarity DC+
Picture 4.
5 EN
14
15
12