Oscilloscope waveforms, Troubleshooting & repair, Normal open circuit weld voltage waveform – Lincoln Electric WELDANPOWER SVM 113-A User Manual
Page 69
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TROUBLESHOOTING & REPAIR
F-31
F-31
WELDANPOWER 125
CH1
0 volts
5 ms
50 volts
SCOPE SETTINGS
Volts/Div.....................50V/Div.
Horizontal Sweep.....5 ms/Div.
Coupling ............................DC
Trigger .........................Internal
This is the typical output voltage gen-
erated from a properly operating
machine. Note that each vertical
division represents 50 volts and that
each horizontal division represents 5
milliseconds in time.
Note: Scope probes connected at
machine output terminals.
NORMAL OPEN CIRCUIT WELD VOLTAGE WAVEFORM
HIGH IDLE – NO LOAD – OUTPUT CONTROL AT MAXIMUM
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