HotStart function
(used with rutile
and Cel pro-
cesses)
117A
I (A)
90A
1,5 s
t
Example of HotStart function
Benefits:
-
Improved ignition properties, even
when using electrodes with poor igni-
tion properties
-
Better fusion of the base material dur-
ing the start-up phase, meaning fewer
cold-shut defects
-
Largely prevents slag inclusions
Mode of operation:
The welding current is raised to a specific value for 1.5 seconds. This value is around
30% higher than the set welding current
Example: 90 A was set on the adjuster.
The HotStart current is 90 A + 30% = 117 A
IMPORTANT!
If the welding current is set to 192 A or higher, the HotStart current is lim-
ited to 250 A.
SoftStart function
(used with basic
process)
The SoftStart function is intended for basic electrodes. Ignition takes place at a low weld-
ing current. Once the arc is stable, the welding current continues to rise until it reaches
the welding current command value.
I (A)
90A
30A
t
Example of SoftStart function
Benefits:
-
Improved ignition properties for elec-
trodes that ignite at low welding cur-
rents
-
Largely prevents slag inclusions
-
Reduces welding spatter
Anti-stick func-
tion
As the arc becomes shorter, the welding voltage may drop so far that the rod electrode
will tend to stick.
The anti-stick function prevents the electrode from burning out. If the rod electrode
begins to stick, the power source switches the welding current off after 1 second. After
the rod electrode has been lifted off the workpiece, the welding operation can be contin-
ued without difficulty.
25
EN
