- 39 -
10. OPERATION (continued)
10.1.13 ARC SPOT setting ( )
For arc spot processing, set the CRATER FILL. key [5] to ARC SPOT. Then, upon depression
of the Arc SPOT TIME key [5], the indicator LED located on the upper left corner of the setting
key turns ON and the set value appears on the right digital display with the unit indicator LED
for “sec. (sec)” turned ON. In this state, the arc spot time may be adjusted in the range
between 0.1 and 10 sec. by the use of the parameter adjusting knob [4].
Depression of the arc spot time setter key or the parameter selection key [3] will bring you
back to the previous parameter setting stage last adjusted.
In the modes other than arc spot, the arc spot time key may not be selected.
Torch Switch
ON (ON)
OFF
Output Current
(Slope ON)
Possible adjustable parameters;
Arc spot time, Down slope time, Welding current, Crater current
Output Current
(Slope OFF)
٨
The current once provided with the torch switch turned ON will be held supplied during arc
spot period (including down slope period if the slope setting is ON) even if the torch switch is
turned OFF.
٨
For arc spot process, it is possible to turn OFF arcing even during arc spot period if the torch
switch is turned OFF.
See Section 10.1.17,
“Internal functions” for further details.
Crater Current
Setting
Controlled by
Torch Switch
Arc Spot Period
Down slope
Period
Welding
Current
Arc Spot Period
Welding
Current
Possible adjustable
parameters;
Arc spot time, Welding current
t