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| OPERATION |
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4 Step Synergic Operation: |
| 1 | 2 | 3 4 5 | 6 7 8 | 910 |
Without Start/Crater/Burnback functions active |
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Waveform Functionality:
1.Trigger is pulled and released; Preflow sequence begins and runs until Preflow timer expires.
2.
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| WFS vs. Work point (Output) Waveform |
3. Arc established; Weld sequence begins. |
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| = solid line represents WFS | |||||
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4. Trigger pulled; Weld sequence continues. |
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| Note: This can be done anytime between Step 3 and | Additional Comments: | |||||||
| 5. |
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5. Trigger | released; Postflow sequence begins and |
| • To achieve a Hot Start routine, the values in step 2 (Run- | ||||||
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| runs until Postflow timer expires. |
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| In and Strike) can be set such that work point (output) is | |||
6. End of sequence. |
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| set to a desired level, while the Weld work point level will | ||||
1 | 2 | 3 | 4 | 5 | 6 |
| be set to a normal or nominal level for the particular | ||
| process. | ||||||||
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| Example Strike Value: 350A |
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| Strike Time: 0.1 sec. |
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| Weld Value: 170A |
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| When the process is initiated, the work point will jump to | |
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| Strike work point of 350A with the set | |
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| the trigger is released, the work point will jump to 170A in | |
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| WFS vs. Work point Waveform |
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| the 0.1 seconds and the Weld sequence will begin, travers- | |||
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| = solid line represents WFS |
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| ing through the rest of the sequence using the functions set | ||
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| forth. | ||||||||
4 Step Synergic Operation: |
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| COLD FEED/GAS PURGE SWITCH | |||||
With Start/Crater/Burnback functions active |
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Waveform Functionality: |
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| The Wire Drive has a Cold Feed/Gas Purge Switch located | |||||
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| near the gun connector. This is an up/down | ||||||
1. Trigger is pulled and released; | Preflow sequence begins | momentary toggle switch. | |||||||
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| and runs until Preflow timer expires. |
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2. | When held in the up position, the Wire Drive will feed wire, | ||||||||
3. Arc established; Work point moves to set value in Start | but neither the power source nor the gas solenoid will be | ||||||||
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| sequence. |
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| energized. When cold feeding, the feed speed can be adjust- | |||
4. Trigger released; Step 4 to 5 is start time set in Start | ed by rotating the WFS encoder knob on the Control Box. | ||||||||
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| sequence to get to Weld sequence. |
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| Adjusting the cold feed will not affect the run in or welding | ||||
5. Weld sequence begins and runs until trigger is pulled. | wire feed speed. When the cold feed switch is released, the | ||||||||
6. Trigger pulled and held; Crater sequence begins. Work | cold feed value is saved. | ||||||||
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| point, WFS move to set value in Crater sequence in the |
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| amount of time set within Crater sequence. |
| When this switch is held in the down position, the gas sole- | |||||
7. Work point, WFS Crater values held until trigger is | noid valve is energized, but neither the power source nor the | ||||||||
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| released. |
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| drive motor will be energized. | ||
8.Trigger released; Burnback sequence begins and runs until Burnback timer expires.
9.Postflow sequence begins and runs until Postflow timer expires.
10.End of sequence.
