Lincoln Electric COMMANDER 400 SVM133-B - Manuel (Page 131)

TROUBLESHOOTING & REPAIR
F-77 F-77
COMMANDER 400 Retur
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NORMAL SOLENOID PULL & HOLD COIL WAVEFORMS
The scope pictures above are typical
waveforms seen directly across the
pull and hold terminals on both the
Idle and Shutdown solenoids when
they are operating normally.
Note: Voltages across the shutdown
solenoid coils may be slightly lower
than these waveforms since the
engine alternator may not be running.
SCOPE SETTINGS
Volts/Div.......................2V/Div.
Horizontal ..............100ms/Div.
Coupling.............................DC
Trigger.........................Internal
2 V 100 ms 100 ms
2 V 100 ms