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F-39

F-39

TROUBLESHOOTING & REPAIR

NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM (115VAC SUPPLY)

HIGH IDLE – NO LOAD – OUTPUT CONTROL AT MAXIMUM

15.8 ms

CH1

0 volts

50 volts

5 ms

This is the typical auxiliary output voltage generated from a properly operating machine. Note that each vertical division represents 50 volts and that each horizontal division rep- resents 5 milliseconds in time.

Note: Scope probes connected at machine 115VAC receptacle.

SCOPE SETTINGS

Volts/Div

50V/Div.

Horizontal Sweep

5 ms/Div.

Coupling

DC

Trigger

Internal

 

 

RANGER 10-LX

Page 93
Image 93
Lincoln Electric SVM120-A Normal Open Circuit Voltage Waveform 115VAC Supply, High Idle no Load Output Control AT Maximum