Lincoln Electric SVM157-A Welder User Manual


 
TROUBLESHOOTING AND REPAIR
F-23F-23
POWER MIG 200
TYPICAL OUTPUT VOLTAGE WAVEFORM - MACHINE LOADED
(MAX TAP G)
10.0 V 5 ms
0 Volts
This is a typical DC output voltage wave-
form generated from a properly operat-
ing machine. Note that each vertical
division represents 10 volts and that
each horizontal division represents 5
milliseconds in time. The machine was
loaded with a resistance grid bank.
NOTE: Scope probes connected at
machine output terminals: (+)
probe to electrode, (-) probe to
work.
Volts/Div.................................10V/Div
Horizontal Sweep.................5 ms/Div
Coupling........................................DC
Trigger....................................Internal
SCOPE SETTINGS
MACHINE LOADED TO 200 AMPS AT 22 VDC
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