Adjusting Ignition Current, Final Current And Current Slope-Off; Adjusting The Pool Formation Time - Orbitalum ORBIMAT 300 SW Traduccion Del Manual De Instrucciones Originales

ORBIMAT 300 SW
8.3.6

Adjusting ignition current, final current and current slope-off

X Adjust the values specified by auto programming only in exceptional cases (for example with extremely thin-walled pipes).
Ignition current: Value specified during ignition. The ignition current is active only very briefly and affects the ignition
behavior itself. If the ignited arc is detected, the machine switches to the current programmed on level 1 within a few
tenths of a second.
Final current: Current level reached by the final slope-off immediately before switch-off of the arc at the end of the weld-
ing process. The value must be greater than 0. Otherwise, the arc will cut out before the end of the welding process.
X Ensure that the value (3 A) is not zero.
For extremely large arc gaps (LP tongs):
X If the arc cuts out at the end of current slope-off: Increase the value.
Slope-off time: Time from the end of the last-used weld sector to the switch-off of the arc. This is identified by an in-
creasingly narrower weld seam on the welded part.
The current slope-off is necessary to prevent a final crater (formed due to immediate switch-off) from being formed.
Is a longer or shorter run-out of the weld seam desired?
X Increase or decrease the value.
Abb. 11: Input field – Ignition current and pool formation time
8.3.7

Adjusting the pool formation time

Pool formation time: Start delay of the rotation motor so that a point weld penetration already exists at the beginning of
the rotation movement. The pool formation time must be adjusted if the starting point shows too much or too little weld
penetration. Adjustment of the pool formation time is made easier by observing, for example, the root formation inside
the pipe on a test piece. Ideally, the rotation should begin immediately after a visible formation of the melt pool inside
the pipe.
Increasing the weld current in the 1st sector affects the energy introduced to the melt pool during pool formation.
X Ensure that the weld current of the 1st sector is already used during pool formation.
1. Using the "go further to gas pre purge time" > "go further to start delay time" " buttons, select, adjust and save param-
eters.
(14.01.21) OW_ORBIMAT_300SW_BA _852060202_00_EN
1. Ignition current: Using the "go further to gas pre
purge time" > "go further to start delay time" " but-
tons, select, adjust and save parameters.
2. Final current and current slope-off: Using the " "go
further to gas post purge time" > "go back to weld seam
end" buttons, select, adjust and save parameters.
3. Press softkey 1 ("Weld") or softkey 2 ("Test").
– or –
1. In the main menu, select "Manual/Adjust program-
ming" > "Adjust parameters".
2. Select, highlight, adjust and save parameters.
3. Press softkey 1 ("Weld") or softkey 2 ("Test").
The machine is ready to start.
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