Lincoln Electric IDEALARC CV-300 - Manual (Page 65)

F-26 TROUBLESHOOTING & REPAIR F-26
IDEALARC CV-300
5ms 20V
0 Volts
CH1
This is not the typical output voltage wave-
form. The output capacitors were discon-
nected to simulate a faulty capacitor bank.
Note the absence of “filtering” in the wave-
form. Note that each vertical division repre-
sents 20 volts and each horizontal division
represents 5 milliseconds in time.
Note: Scope probes connected at machine
high inductance output terminals.
Volts/Div . . . . . . . . . . . . . . . . .20 V/Div.
Horizontal Sweep . . . . . . . . . .5 ms/Div.
Coupling . . . . . . . . . . . . . . . . . . . . .DC.
Trigger . . . . . . . . . . . . . . . . . . .Internal.
SCOPE SETTINGS
ABNORMAL OPEN CIRCUIT WELD VOLTAGE WAVEFORM
NO LOAD - CAPACITOR BANK NOT FUNCTIONING
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