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

Page 127

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TROUBLESHOOTING & REPAIR

F-73

F-73

COMMANDER 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 connected at
“STICK” welding output terminals.

SCOPE SETTINGS

Volts/Div.....................50V/Div.
Horizontal Sweep .....5 ms/Div.
Coupling.............................DC
Trigger.........................Internal

NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM (STICK)

MAX TAP – MAX CONTROL POT – HIGH IDLE – NO LOAD

0 volts

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