Lincoln Electric POWER MIG 255 SVM144-B - Manual (Page 70)

POWER MIG 255
TROUBLESHOOTING & REPAIR F-32 F-32
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0 VOLTS
20.0 V 5 ms
MACHINE LOADED TO 250 AMPS AT 26 VDC
TYPICAL OUTPUT VOLTAGE WAVEFORM - MACHINE LOADED
This is a typical DC output voltage waveform
generated from a properly operating
machine. Note that each vertical division
represents 20 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 . . . . . . . . . . . . . . . . . . 20 V/Div
Horizontal Sweep . . . . . . . . . . 5 ms/Div
Coupling . . . . . . . . . . . . . . . . . . . . . . DC
Trigger . . . . . . . . . . . . . . . . . . . . Internal
SCOPE SETTINGS