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Troubleshooting & repair, Normal open circuit voltage waveform – Lincoln Electric MULTI-WELD SVM151-A User Manual

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TROUBLESHOOTING & REPAIR

F-29

F-29

MULTI-WELD 350

This is the typical CC open circuit out-
put voltage generated from a properly
operating machine. Note that each
vertical division represents 50 volts
and that each horizontal division rep-
resents 5 µs in time.

SCOPE SETTINGS

Volts/Div.....................50V/Div.
Horizontal Sweep ......5 µs/Div.
Coupling.............................DC
Trigger.........................Internal

NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM

CC MODE – INPUT VOLTAGE APPLIED 75 VDC

0 volts

0 volts

50V

5µs