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Section E-1 Section E-1
COMMANDER 400
Theory of Operation .............................................................................................................Section E
General Description...............................................................................................................E-2
Battery, Starter, Engine, Rotor and Stator .............................................................................E-2
Exciter Feedback, Control Board, Local and Remote Control ..............................................E-3
Weld Winding, Output Bridge, Output Choke and CV Capacitors ........................................E-4
SCR Operation ......................................................................................................................E-5
Induction Generators .............................................................................................................E-6
TABLE OF CONTENTS
-THEORY OF OPERATION SECTION-
ENGINE ROTOR
MECHANICAL
ROTATION
EXCITER
WINDINGS
WELD
WINDING
S
SCR/DIODE
OUTPUT
BRIDGE
OUTPUT
CHOKE
CV
CAPACITO
RS
SHUNT
POSITIVE
TERMINAL
CV
TERMINAL
TERMINAL
NEGATIVE
EXCITER
CAPACITORS
115/230VAC
RECEPTACLE
14 PIN
AMPHENOL
6 PIN
AMPHENOL
EXCITER VOLTAGE
FEEDBACK
BOARD
ENGINE
PROTECTION
BOARD
CURRENT/ MODE
SELECTOR
SWITCH
BATTERY
STARTER
ALTERNATOR
SHUTDOWN
SOLENOID
IDLER
SOLENOID
SENSORS
ENGINE
FINE
OUTPUT
CONTROL
BY-PASS
PC
BOARD
METER
CV
BOARD
MAIN
CONTROL
BOARD
REMOTE
SWITCH
42VAC
12VDC
SCR GATE SIGNALS
115VAC
FEEDBACK
F
E
E
D
B
A
C
K
FIGURE E.1 – COMMANDER 400 BLOCK LOGIC DIAGRAM