13
B. TIG-Welding
1. Position of poti
h
defines the duration of up-slope, while time of down-slope is set at poti
m
.
2. Depending on the position of switch
i
, the machine can be operated in 2- or 4-stroke mode:
2-stroke mode
Symbol
1. Press torch- or foot-switch
=
Welding
2. Release torch- or foot-switch
=
End of welding and gas post-flow
4-stroke mode
Symbol
1. Press torch- or foot-switch
=
Gas pre-flow and HF
2. Release torch- or foot-switch
=
Welding with current up-slope
3. Press torch or foot-switch
=
Current down-slope
4.Release torch- or foot-switch
=
End of welding and gas post-flow
C. TIG-pilot arc welding
Welding process runs as with Plasma welding
D. MMA Welding
1. Hot-Start
When switch-potentiometer
h
is in position 0, current drops down immediately from maximum value of
power supply to preset value.
2. Soft-Start
When switch-potentiometer
h
is turned clockwise, soft-start function is switched on. Up-slope time
from basic current to preset welding current is infinitely variable.
Starting up / Welding
Summary of Contents for PLASMAWELD 202
Page 24: ...24 Wiring diagram...
