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F-36

F-36

TROUBLESHOOTING & REPAIR

TYPICAL AC WELD OUTPUT WAVEFORM

MACHINE LOADED

CH1

0 volts

20 volts

5 ms

MACHINE LOADED TO 225 AMPS AT 25 VDC

This is the typical AC output voltage generated from a properly operating machine. Note that each vertical division represents 20 volts and that each horizontal division represents 5 milliseconds in time. The machine was loaded with a resistance grid bank.

Note: Scope probes connected at machine output terminals.

SCOPE SETTINGS

Volts/Div

20V/Div.

Horizontal Sweep

5 ms/Div.

Coupling

DC

Trigger

Internal

 

 

RANGER 8

Page 76
Image 76
Lincoln Electric SVM107-B service manual Typical AC Weld Output Waveform, Machine Loaded to 225 Amps AT 25 VDC