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TROUBLESHOOTING & REPAIR
NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM (WIRE CV TAP)
MAX CONTROL POT – HIGH IDLE – NO LOAD
0 volts
This is the typical DC open circuit output voltage generated from a properly operating machine. Note that each vertical division represents 20 volts and that each horizontal division represents 5 milliseconds in time.
Note: Scope probes connected at “WIRE” welding output terminals.
SCOPE SETTINGS
Volts/Div | 20V/Div. |
Horizontal Sweep | 5 ms/Div. |
Coupling | DC |
Trigger | Internal |
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