Lincoln Electric CLASSICII SVM125-A - Manual (Page 45)

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Section E-1 Section E-1
CLASSIC II
Theory of Operation ............................................................................................................. Section E
General Description ...............................................................................................................E-2
Battery, Starter, Engine Alternator, and Protection Circuits ...................................................E-2
Engine, Generator Armature and Frame, Alternator Stator and Rotor ..................................E-3
Excitation (Flashing)........................................................................................................E-3
Auxiliary and Field Feedback Coils .................................................................................E-3
Interpole and Series Coil.................................................................................................E-3
Current Range Selector ..................................................................................................E-4
Fine Current Adjustment ................................................................................................E-4
Engine Idler Circuit ..........................................................................................................E-4
DC Generator Machines ........................................................................................................E-5
TABLE OF CONTENTS
-THEORY OF OPERATION SECTION-
NEGATIVE
OUTPUT
TERMINAL
POSITIVE
OUTPUT
TERMINAL
115 & 230VAC
RECEPTACLES
CURRENT
TRANSFORMER
FIELD
RECTIFIER
FLASHING
RESIDUAL
MAGNETISM
ALTERNATOR STATOR
ROTOR
SLIP
RINGS
ARMATURE
SHAFT
GENERATOR
ARMATURE BRUSHES
&
COMMUTATOR
GENERATOR
FRAME
SERIES
COILS
INTERPOLE
COILS
SHUNT
WINDINGS
GENERATOR
FIELD CONTROL
FIELD
MECHANICAL
COUPLING
REED
RELAY
CR2
SELECTOR
SWITCH
IDLER
BOARD
IDLER
SOLENOID
OIL
PRESSURE
SENSOR
OIL
TEMPERATURE
SENSOR
FUEL
SOLENOID
RELAY
CR1
ENGINE
ALTERNATOR
STARTER
MOTOR
BATTERY
ENGINE
PROTECTION
RELAY
IGNITION
SWITCH
ON LATER MODELS
PROTECTION AND IDLER CIRCUITS
ARE ON ONE PC BOARD
(NOT PRESENT
ON LATER MODELS)
FIGURE E.1 – CLASSIC II BLOCK LOGIC DIAGRAM