Troubleshooting & repair – Lincoln Electric IDEALARC DC 1000 SVM123-A User Manual
Page 82
F-42
TROUBLESHOOTING & REPAIR
F-42
TYPICAL OUTPUT VOLTAGE WAVEFORM - MACHINE
LOADED - 500 AMP OUTPUT TERMINAL
CONSTANT VOLTAGE INNERSHIELD MODE
IDEALARC DC-1000
Volts/Div. . . . . . . . . . . . . 20 V/Div.
Horizontal Sweep . . . . . 2 ms/Div.
Coupling . . . . . . . . . . . . . . . . . DC
Trigger . . . . . . . . . . . . . . . Internal
SCOPE SETTINGS
This is the typical DC open circuit volt-
age waveform generated from a proper-
ly operating machine. Note that each
vertical division represents 20 volts and
that each horizontal division represents
2 milliseconds in time. The machine
was loaded with a resistance grid bank.
The grid bank meters read 400 amps at
36 VDC.
Note: Scope probes connected at
machine ouput terminals: (+) probe to
positive 500 amp terminal, (-) probe to
negative terminal.