12 0 337 KB
CHERPILLAR”
3412
9XFl -UP
Industrial
FORM NO. SENR4657-01 FOR USE IN SERVICE MANUAL: 3412 industrial Engine, SENR4655
Engines
_-_---------~~~^
-----
---_
-- -_--_ _.,- .
~--._-.-
--
COOLANT TEMPERATURE SENSOR
.
_..~~.. .~
.--
RACK POSITION SENSOR
ENGINE SPEED SENSOR
RACK SOLENOID
SHUTOFF SOLENOID
3412 PEEC SCHEMATIC VOLTAGES SYSTEM VERSION: PEEC 2.5 Operating Voltage = 8.0 + .4 V Reference Voltage = 5.0 + .25 V
0 22 aa ,od mzo + 00 1
LJ ii!=a >>a: @JvIZ< ++cJcl ]! I I
Rack Position Sensor Ignition ON Only: .3 V < Rack < 2.0 V Engine Running (constant speed): .3 V < Rack < 5.0 V
ZY,JYXQc33 0Ul>CL30LDa
PERSONALITY MODULE
I&&&&L MMMnnnMM bNbbr-r-r-b 99999999
Control Group (Transducer) 1.53 V < Oil Pressure no upper limit 0.75 < Boost Pressure < 5.0 V 0.75 < ATM Pressure < 5.0 V
7
I I I I I I I I C’ E I +o ICI2 ooaaa -w
J7 P7 UZ> 000
Liz+
I I W-N c-c bbN 999
OS&:, --cr-r-Tub a.099
Shutoff Solenoid Pull-In Voltage > 4.5 V 1.5 V < Hold-In Voltage < 2.5 V Hold-In Current = 1.3 A
wEI-+I -laaan
+m I
Throttle Position Sensor 24 V Operating 5% < PWM < 95% 100 Hz < PWM Frequency < 1000 Hz
ECM
I LLJO
n k
is 4 wwz zaa
a
r;,
gii
00~0 v)
TRANSDUCER MODULE
lAoa+
I I I I
YvaJ
zmzaob---oO w+oamao+
-I I I I I I I I I I I I I I I I :pJ&-;L;I;;; --------
r-bNbr-bbb 99999999 p%EEsq;:
z
+ &’
aw tan OELJ>
zrrsJhdx3a t3m0tn3no
- --
I-
wwn uu
GW
z
ant-
aEz
+ _J&h>o 000 -t-oazmz utoamccc3+w
I I I I I I I I I
2a3xuJ>az
E 2
Rack Solenoid .O to 3.6 V f 0.3 V Across Leads
-I
,I>
E
t-
is
2 m t
Engine Speed Sensor Frequency < 460 Hz
L
z
I
lllllllll uaJxxxa3z
nmm>
mon3n~0mc3
mmsa3nom0
tL4A.i
&&.&&r;r&L
&&;&&L&J&I
--cc-ccc-
00000000N
xx: 999-0
bbbbbbbbb
Nbbb?-r-r-b-
999999999
999999999
Coolant Temperature Sensor 0.3 V < Temperature < 4.7 V
Pr, JL,
wmooa
hhh rrr3 YYa nmm +i
l9Nb a-09
‘cHo”NoT%: SENSOR J12
,INPUT
ELECTRONIC CONTROLS WIRING DIAGRAM
(b-20mA)
P12
ESS
ES\6 E’;‘,’ I I 6
0
0
0
7
8
iOl1
‘i
0
0
c,rd pu wii
I& 00000
: !
:L.
IL,
c
K
EZ,>iC
HI’~
I
FUEL
PRESSURE SWITCH
TERMINAL BOARD TS2I
-FPS
WTTC-
TSZ3
OPTC-
T’,26
/
WTS
TS77-TCD
A
I
r TX:2
SSMPU A
Gh
B
RD
CBK
TI
A
i‘\\s,
T y> 7, c’
-I-
+24V A -24V
wt.’
[ ‘< 5 5
~ClPiA-~t~311~, >y\
OPS
P n 0 LI
ABBREVIATIONS Cl c2 DL ESS K PEEC SSMPU TC WTS FPS
Converter Converter Diagnostic Lamp Electronic Speed Switch Hourmeter Oil Pressure Sensor Electronic Control Speed Switch Mag Pick Up Throttle Control Water Temp Sensor Fuel Pressure Switch
rc
i L. il
1 I-
ECM
Br m
I! /I, /I, !, /I, /I, I, rji
t f,ti
h
IA
J
(5 AMP)
P2 12v
J2
24/12 V DC CONVERTERS
rlt F I
A t ‘,‘,v
PFFC
f
Tf r
I 12
T’hfi
I?
I’,!,’
1
(lOAMP)
VOLTS TO 24 VOLT LINE
REMOTE JUNCTION BOX WIRING DIAGRAM
(GROUND)
J