Operation Manual

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A7 TIG Orbital System 300© Kemppi Oy 2016 1615
OPERATING MANUAL
3.9 Completing the programming
Press Main to exit to Main Menu. Press Run to immediately
weld with new program.
Editing a weld program
• Move cursor to Edit. Press Select.
• Use the cursor to select an item. Modify with the
control knob.
Certain items may not be modied. The cursor will
bypass these items.
• Use Next to move through levels, editing them
as you go. The edited weld will overwrite the
original program if the same weld number is
selected.
3.10 Updating software
The controller unit’s application software can be
updated. Updates are not done regularly, and they are
recommended only when some new feature or bug x
is needed. Updating can be done via USB media. Consult
Kemppi workshop service for detailed instructions when
updating.
3.11 Welding
1. Create a new program or choose one from the
library.
2. Activate the Run/Ready screen.
• Screen shows the status of the weld head
position, AGC inhibit, and wire inhibit.
• Screen allows purge of backing gas and coolant.
Water and gas are purged with the same button. Make
your selection pressing the arrow up. Text on the bottom
right corner changes from purge to water and back to
purge.
3. Start welding by pressing the Arc On button.
3.12 Travel speed correction
Compared with the electrode tip, the weld head rotates
further away from the pipe surface. This makes the actual
rotation speed of the electrode tip slower than that of the
weld head.
• Correction factor = the weld head rotation
diameter divided by the electrode tip rotation
diameter
The factor may be small on large pipes, but it can
become signicant with small diameters, when modifying a
pre-established program to new pipe size.
In heavy wall pipe welding, the groove progressively lls
and electrode rotation diameter retracts closer to the
guide ring diameter. In these cases, you may need to
change the diameter in correction factor calculation. The
correction factor should be 17 mm + groove depth for the
given pass where 17 mm is the radial height of the guide
ring.