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