Perform output waveform test, Check the output voltage, Waveforms . if waveforms are – Lincoln Electric POWER MIG SVM165-A User Manual
Page 85: Output voltage, Waveforms, Check the ocv and output, Voltage waverforms, Troubleshooting & repair, Typical output voltage waveform - machine loaded
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TROUBLESHOOTING & REPAIR
F-39
F-39
POWER MIG 350MP
SCOPE SETTINGS
Volts/Div.....................20V/Div.
Horizontal Sweep ..2.0 ms/Div.
Coupling.............................DC
Trigger.........................Internal
TYPICAL OUTPUT VOLTAGE WAVEFORM - MACHINE LOADED
MACHINE LOADED TO 250 AMPS AT 26 VDC
This is a typical DC output voltage waveform generated from a properly operating machine. Note that
each vertical division represents 20 volts and that each horizontal division represents 2.00 milliseconds in
time.
NOTE: Scope probes connected at the machine output terminals: (+) probe to electrode, (-) probe to work.
20.0 V
2.0 MS/DIV
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