Troubleshooting & repair, Normal open circuit voltage waveform (wire cv tap) – Lincoln Electric COMMANDER 400 SVM133-B Manuel d'utilisation

Page 130

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TROUBLESHOOTING & REPAIR

F-76

F-76

COMMANDER 400

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

NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM (WIRE CV TAP)

MAX CONTROL POT – HIGH IDLE – NO LOAD

0 volts

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