Troubleshooting & repair – Lincoln Electric VANTAGE 400 User Manual
Page 131
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NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM (115VAC SUPPLY)
MAX CONTROL POT - HIGH IDLE - NO LOAD
TROUBLESHOOTING & REPAIR
F-83
F-83
VANTAGE® 400
This is the typical DC 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 milliseconds in time.
NOTE: Scope probes are connected
at weld output terminals.
SCOPE SETTINGS
Volts/Div.....................50V/Div.
Horizontal Sweep .....5 ms/Div.
Coupling.............................DC
Trigger.........................Internal
0 volts
50V
5ms
CH1
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