Troubleshooting & repair, Typical dc weld output voltage waveform – Lincoln Electric CLASSICII SVM125-A User Manual

Page 80

Advertising
background image

Retur

n to Section TOC

Retur

n to Section TOC

Retur

n to Section TOC

Retur

n to Section TOC

Retur

n to Master TOC

Retur

n to Master TOC

Retur

n to Master TOC

Retur

n to Master TOC

TROUBLESHOOTING & REPAIR

F-30

F-30

CLASSIC II

This is the typical DC output voltage
generated from a properly operating
machine. Note that each vertical divi-
sion 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.

SCOPE SETTINGS

Volts/Div.....................20V/Div.
Horizontal Sweep .....5 ms/Div.
Coupling.............................DC
Trigger.........................Internal

TYPICAL DC WELD OUTPUT VOLTAGE WAVEFORM

MACHINE LOADED – SELECTOR SWITCH AT MAXIMUM POSITION

CH1

0 volts

5 ms

20 volts

MACHINE LOADED TO 250 AMPS AT 40 VDC

Advertising