Hotstart Function (Used With Rutile And Cel Processes); Softstart Function (Used With Basic Process); Anti-Stick Function - Fronius TransPocket 2500 Operating Instructions Manual

HotStart func-
tion (used with
I (A)
rutile and Cel
117A
processes)
90A
Example of HotStart function
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 cur-
rent is limited to 250 A.
SoftStart func- The SoftStart function is intended for basic electrodes. Ignition takes place at a
tion (used with low welding current. Once the arc is stable, the welding current continues to rise
basic process)
until it reaches the welding current command value.
I (A)
90A
30A
Example of SoftStart function
Anti-stick func- As the arc becomes shorter, the welding voltage may drop so far that the rod
tion
electrode will tend to stick.
The anti-stick function prevents the electrode from burning out. If the rod elec-
trode 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 continued without difficulty.
26
1,5 s t
t
Benefits:
-
Improved ignition properties, even
when using electrodes with poor
ignition properties
- Better fusion of the base material
during the start-up phase, meaning
fewer cold-shut defects
- Largely prevents slag inclusions
Benefits:
- Improved ignition properties for
electrodes that ignite at low weld-
ing currents
- Largely prevents slag inclusions
- Reduces welding spatter