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THEORY OF OPERATION
GENERAL DESCRIPTION
The PIPELINER® 200 is a heavy duty, engine driven,
DC arc welding power source capable of providing con-
stant current output for stick welding or DC TIG weld-
ing. Also, a total of 1750 watts of auxiliary power is
available at the 120VDC receptacle. The PIPELINER®
200 is manufactured with all copper windings.
E-2 E-2
PIPELINER® 200
FIGURE E.2 — GENERAL DESCRIPTION
NEGATIVE
OUTPUT
T
ERMINAL
SWITCH
-
SELECTOR
90 Min.
Max
GENERATOR
ARMATURE
BRUSHES
&
COMMUTATOR
ENGINE
IDLER
S
OLENOID
INTERPOLE
COILS
RESIDUAL
MAGNETISM
G
ENERATOR
FIELD CONTROL
S
HUNT
FIELD
SERIES
F
IELD
ARMATURE
EXCITER
D
C
ARMATURE
SHAFT
_
+
SERIES
COILS
TO
ENGINE
CONTROL/PROTECTION
MODULE
POSITIVE
OUTPUT
TERMINAL
+
S
HUNT
FIELD
COILS
15 AMP
FUSE
R
ECEPTACLE
120VDC
M
ECHANICAL
COUPLING
1
2 VOLT
BATTERY
ENGINE
P
ERKINS DIESEL
FROM CURRENT
SENSING P.C. BOARD
I
DLER
SWITCH
IDLER/ENGINE
P
ROTECTION
P.C. BOARD
ENGINE
FAILURE
L
AMP
E
NGINE
H
OUR
METER
F
UEL
PUMP
FUEL
SOLENOID
O
IL
GAUGE
OIL
S
ENSOR
SWITCH
TEMP.
SENSOR
S
WITCH
TEMP.
GAUGE
S
TARTER
MOTOR
ENGINE
ALTERNATOR
GLOW PLUGS
TO
BATTERY
IGNITION
SWITCH
+
-
C
urrent
Sensing
P.C. Board
ENGINE
ALTERNATOR
12 VOLT
BATTERY
MAP
S
ENSOR
WATER
&
AIR TEMP.
SENSOR
OIL
PRESSURE &
WATER TEMP.
SENSOR
THROTTLE
PLATE
MOTOR
FUEL
PUMP
FUEL
INJECTORS
FROM CURRENT
SENSING P.C. BOARD
IDLER
SWITCH
ENGINE
FAILURE
LAMP
ENGINE
HOUR
METER
RPM
C
ONTROL
ENG. IGNITION
CIRCUITRY
STARTER
MOTOR
ZENITH
THROTTLE
BODY
CONTROLLER
G.M.
GASOLINE
ENGINE
O
IL
GAUGE
WATER
GAUGE
ENGINE
IGNITION
SWITCH
COUPLEDTO
GENERATOR
ENGINE
ALTERNATOR
E
NGINE
S
PEED
S
ENSOR
ENGINE
SPEED
ACTUATOR
FROM CURRENT
SENSING P.C. BOARD
IDLER
S
WITCH
ENGINE
PROTECTION
L
AMP
ENGINE
HOUR
METER
RPM
CONTROL
STARTER
MOTOR
E
NGINE
C
ONTROL
U
NIT
(
ECU)
KUBOTA
DIESEL
E
NGINE
OIL
GAUGE
GLOW PLUGS
OIL
S
ENSOR
S
WITCH
TEMP.
SENSOR
SWITCH
TEMP.
GAUGE
START
RELAY
ENGINE
IGNITION
SWITCH
C
OUPLED TO
GENERATOR
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