Normal Open Circuit Voltage Waveform (115Vac Supply - Lincoln Electric BULLDOG SVM208-A Service Manual

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NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM (115VAC SUPPLY)

1 Period = 16.2 ms @ 3700 rpm
TROUBLESHOOTING AND REPAIR
HIGH IDLE – NO LOAD
20 volts
This is the typical AC output voltage
generated from a properly operating
machine. Note that each vertical divi-
sion represents 50 volts and that
each horizontal division represents 5
milliseconds in time.
Note: Scope probes connected at
machine 115 VAC receptacle.
SCOPE SETTINGS
Volts/Div.....................50V/Div.
Horizontal Sweep .....5 ms/Div.
Coupling.............................DC
Trigger.........................Internal
BULLDOG® 140
CH1
0 volts
5ms
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