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Phoenix 351, 401, 451, 551 Expert puls FDW - EWM Hightec ...

Phoenix 351, 401, 451, 551 Expert puls FDW - EWM Hightec ...

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Design and function<br />

MIG/MAG welding<br />

5.10.3.3 Burn-back<br />

NOTE<br />

Prevents fusing of the wire electrode in the weld pool.<br />

Back-burn set too high:<br />

• Large ball formation of the wire electrode (poor re-ignition)<br />

• Wire electrode sticks in the gas nozzle.<br />

Back-burn set too low:<br />

• Wire electrode sticks in the weld pool.<br />

Welding machine<br />

Operating<br />

element<br />

A<br />

Action Result Display<br />

1 x<br />

n x<br />

Select program sequence mode<br />

Select "RUECK" parameter using the<br />

and<br />

"Down" buttons (left)<br />

"Up"<br />

Program steps<br />

RUECK 2-500<br />

V<br />

M A<br />

Job Nr<br />

Hold<br />

n x<br />

Adjust the selected parameter using the<br />

and "Down" buttons (right)<br />

"Up"<br />

RUECK 2-500<br />

3 x<br />

Machine returns to Display mode<br />

Wire feed unit<br />

m/min<br />

38<br />

099-004833-EW501<br />

10.07.2012

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