Operation
ORBIMAT 180 SW
| Operating instructions
40
orbitalum tools
GmbH, D-78224 Singen, www.orbitalum.com, Phone +49 (0) 77 31 792-0
(17.09.18) OW_ORBIMAT_180SW_BA_850060202_00_EN
1. Using the "
go further to gas pre purge time
" > "
go further to start delay time
" " buttons, select, adjust and save param-
eters.
– or –
1. In the main menu, select "
Manual/Adjust programming
" > "
Adjust parameters
".
2. Select, highlight, adjust and save parameters.
3. Press softkey 1 ("
Weld
") or softkey 2 ("
Test
").
The machine is ready to start.
8.3.8
Adjusting welding current and transition times ("Slope")
The weld currents in the individual sectors are the process parameters which are changed most often in practice to
achieve optimum and even weld seam formation. If the seam is welded unevenly or insufficiently, adjust the energy be-
ing applied.
To prevent changes in voltage from being sudden, and thus a possible visible change in the seam, a value can be speci-
fied for a transition time starting with sector 2. The value is a percentage value of the sector time in which a linear cur-
rent transition from (current) value of the previous sector follows the current value of the current sector.
Example
• Current of 50 A (HP) in sector 1 and 45 A (HP) in sector 2
• Sector time in level 2 of 10 sec.
• Slope of 10%
Process sequence
• The sector is welded up to the end with 50 A (HP or LP as programmed).
• Within 10% of the sector time (meaning 10% of 10 sec = 1 sec), the current is reduced linearly from 50 A to 45 A.
• For the remaining sector time in sector 2 (= 9 sec), the current remains constant at 45 A.
Auto programming uses these linear transitions. This reduces the number of sectors. The effects to be compensated for
by a change in current (e.g. heating of the pipes during welding) do not have a sudden character and can be compen-
sated for better using transitions.
Alternatively, it is also possible by adjusting the weld speed. With different weld speeds, however,
the seam appearance changes ("scaling") if the high- and low-pulse times are not adjusted in the
same proportion.
Recommendation for standard applications
X
The method of a constant weld speed within a procedure "recommended" by auto programming is retained.
X
To achieve an even seam with proper weld penetration, adjust the current setting in the individual sectors.
For minor adjustments:
X
Change only the high-pulse current.
– or –
X
Change both currents in the same direction to obtain the desired "pulse effect".
1. In the main menu, select "
Manual/Adjust programming
" > "
Adjust parameters
".
2. Select the desired sector.
The respective selected sector is highlighted in color to the right in the display. The angular degrees of this sector is
specified.
3. Select, highlight, adjust and save the "
HP current
", "
LP current
" and "
Slope
" parameters.
4. Press softkey 1 ("
Weld
") or softkey 2 ("
Test
").
