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OPERATION | ||||
5. Output / Parameter Adjust Knob- Allows you to |
| 2 STEP DIAGRAM 1 | ||
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continuously adjust the current both in TIG and in Stick |
| (1) | ||
welding. Allows you to change the value, shown on |
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"Digital Display Item 6", of the parameter selected with |
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"Setup/Parameter select button Item 4". |
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6. Digital Display - displays currently set values for |
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each mode or welding parameter. |
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7. Local/Remote push button - Selects the welding |
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current adjusting system: |
| Possible variations of this standard sequence is shown | ||
• from front panel |
| in (2 step diagram 2). It is possible to press and hold | ||
• from remote control |
| the TIG torch trigger a second time during downslope | ||
The LED beside the symbol confirms the selection. | to restart. After the trigger is pressed the output current | |||
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| will increase to the welding current. This operation is | ||
8. Tig Trigger Sequences - |
| shown in (2 step diagram 2). | ||
For the |
| 2 STEP DIAGRAM 2 | ||
either the |
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(1) | (2) | |||
the Trigger Mode Push Button. |
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With the Trigger Mode switch in the |
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the following welding sequence will occur. This |
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sequence is shown in |
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1. Press and hold the Arc Start Switch to start the | |
sequence. | With the |
| sequence will occur. |
The machine will open the gas valve to start the flow |
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of the shielding gas. After a 0.5 second preflow time, | 1. Press and hold the Arc Start Switch to start the |
to purge air from the torch hose, the output of the | sequence. |
machine is turned ON. At this time the arc is started. |
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| The machine will open the gas valve to start the flow |
After the arc is started the output current will be | of the shielding gas. After a 0.5 second preflow time, |
increased from the start current to the welding cur- | to purge air from the torch hose, the output of the |
rent. Both the start current and increase, or upslope | machine is turned ON. At this time the arc is started. |
time are presettable. The default start current is 15 |
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amps and the default upslope time is 0.2 seconds. | After the arc is started the output current will be at |
| the Start current. This condition can be maintained |
2. Release the Arc Start Switch to stop welding. | as long or as short as necessary. |
The machine will now decrease the output current at |
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a controlled rate, or downslope time, until the Finish | If the Start current is not necessary, do not hold the |
current, (also commonly referred to as Crater | TIG torch trigger as described at the beginning of this |
Current) is reached and the output of the machine is | step. Instead, quickly press and release the trigger. |
turned OFF. Both the Downslope Time and the Finish | In this condition, the machine will automatically pass |
Current are can be preset. | from Step 1 to Step 2 when the arc is started. |
After the arc is turned OFF, the gas valve will remain | 2. Release the TIG torch trigger to start the main part |
open to continue the flow of the shielding gas to the | of the weld. |
hot electrode and work piece. The duration of this |
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postflow shielding gas is adjusted by the Postflow | The output current will be increased from the start |
Parameter. | current to the welding current. Both the start current |
| and increase, or upslope time are presettable. The |
| default start current is 15 amps and the default ups- |
| lope time is 0.2 seconds. |
