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4-9. Balance/DIG Control
(CE Nameplate Only)
1 | 1 |
|
Balance Control Examples
Setting | Output Waveforms | Arc |
Balanced | 50% Electrode |
|
3 | Positive |
|
| 50% Electrode |
|
| Negative |
|
More Penetration | 32% Electrode |
|
|
| |
| Positive |
|
| 68% Electrode |
|
10 | Negative |
|
More Cleaning | 55% Electrode |
|
|
| |
| Positive |
|
| 45% Electrode |
|
0 | Negative |
|
|
|
1 Balance/DIG Control
Balance Control (AC GTAW):
Control changes the AC output square wave. Rotating the control towards 10 provides deeper pene- tration. Rotating the control towards 0 provides more cleaning action of the workpiece.
When the control is in the Balanced position, the wave shape provides equal penetration and cleaning action.
Application:
When welding on oxide forming ma- terials such as aluminum or magne- sium, excess cleaning is not neces- sary. To produce a good weld, only a minimal amount, approximately a
0.10in (2.5mm) of etched zone along the weld toes is required.
Set control to 7 and adjust as nec- essary. Joint configuration,
Arc rectification can occur when welding above 200 amps and/or while welding with helium gas. If this condition occurs, increasing the Balance control towards maximum penetration, may help to restabilize the arc.
DIG Control (AC And DC SMAW):
When set at 0,
When setting is increased, short- circuit amperage at low arc voltage increases.
Application:
Control helps arc starting or making vertical or overhead welds by in- creasing amperage at low arc volt- age, and reduces electrode sticking while welding.
Ref.
4-10. Preflow Time Control
(CE Nameplate Only)
1 | 1 |
1 Preflow Time Control
Use control to set length of time that gas flows
Application:
Preflow is used to purge the imme- diate weld area of atmosphere. Pre- flow also aids in consistent arc starting.