OPERATION | ||
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4-Step Restart Enabled (DIP Switch 4 = ON)
Same as step 1.
Same as step 2.
3.Press and hold the TIG torch trigger when the main part of the weld is complete. The machine will now decrease the output current at a controlled rate (downslope), until the Start/Crater current is reached. This Start/Crater current can be main- tained as long or as short as necessary.
FIGURE b.10
(1) | (2) | (3) | (4) | (3A) |
TORCH
BUTTON
OUTPUT
CURRENT
GAS | ÐÐGAS ONÐÐ |
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This sequence has an automatic restart so welding will continue after this step. If the weld is completely finished, use the following sequence instead of step 3 described above.
3A. Quickly press and release the TIG torch trigger. The machine will now decrease the output cur- rent at a controlled rate (downslope), until the Start/Crater current is reached and the output of the machine is turned OFF. After the arc is turned OFF the postflow time will start.
4.Release the TIG torch trigger. The output current will again increase (upslope) to the welding current, like in step 2, to continue welding. When the main part of the weld is complete go to step 3.
As shown in figure B.11, after the TIG torch trigger is quickly pressed and released from step 3A, it is possible to press and hold the TIG torch trigger another time to end the downslope time and main- tain the output current at the Start/Crater current. When the TIG torch trigger is released the output will again increase (upslope) to the welding current, like in step 4, to continue welding. When the main part of the weld is complete go to step 3.
FIGURE b.11
(3A)(4)
TORCH
BUTTON
OUTPUT
CURRENT
ÐÐGAS ONÐÐ
GAS
As shown in figure B.12, again after the TIG torch trigger is quickly pressed and released from step 3A, it is possible to quickly press and release the TIG torch trigger a second time to end the downs- lope time and stop welding.
FIGURE b.12
(3A)
TORCH
BUTTON
OUTPUT
CURRENT
ÐÐGAS ONÐÐ
GAS