Lincoln Electric SVM112-B service manual Positive Voltage Sensing Polarity

Models: SVM112-B

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B-19

B-19

OPERATION

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Use the ELECTRODE SENSE LEAD KEY to select either the - output terminal or the electrode sense (67) lead for the positive voltage reference.

The work sense (21) lead is used only in rare circum- stances. For most installations, use the WORK SENSE LEAD KEY to select the - output terminal for negative voltage reference. Consult the factory if use of the work sense (21) lead is desired.

The two wire feeders can only be connected in the same manner, either by the Positive Polarity or the Negative Polarity setup.

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FIGURE B.10

POSITIVE VOLTAGE SENSING POLARITY

Power

Control Cable (includes 67 lead)

 

Wave

Electrode Sense Lead

67

-

+

Wire Feeder

Block

Electrode Cable

Work Cable

FIGURE B.11

NEGATIVE VOLTAGE SENSING POLARITY

Power

Control Cable (includes 67 lead)

Wave

Electrode Sense Lead

 

 

 

 

67

-

+

Wire Feeder

Block

Electrode

Cable

Work Cable

POWER WAVE 450

Page 31
Image 31
Lincoln Electric SVM112-B service manual Positive Voltage Sensing Polarity