M0160.docx | Rev 1.3 | Last modified 19/05/2020 | © Remote Control Technologies Pty Ltd
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Appendix
ETR Idle Timer / EPS / Fire Control Unit Diagram (478i)
Figure 5 Drawing 478i – ETR idle timer/EPS/fire controller external wiring diagram
RD-4
OR-4
PU-4
BK-4
BK-4
YL/BU-4
PU-4
OR-4
EPS
(3565)(3747)
(9200)(9301)
FIRE CONTROL
(5884)
1
2
3
4
5
6
7
8
9
10
11
12
AUX CONTROL
1 2
1 2
OR-4
YL/BU-4
OR
BR
PU
YL
1
2
3
4
1
2
3
4
YL/BU-4
R
C
S
B
PU-4
PU-4
RD-4
RD-4
IDLE TIMER CONTROLLER
(11450)
1
2
3
4
5
6
7
8
9
10
11
12
IDLE TIMER
11450
AUX CONTROL
PU-4
YL/BU-4
OR-4
RD-4
BK-4
1
2
3
4
5
6
7
8
!
www.rct.net.au
N12596
1 SHOT O'RIDE
SHUTDOWN
BYPASS
POWER ON /
CYLINDER PRESSURE OK
SYSTEM FAULT /
CYLINDER PRESSURE LOW
SYSTEM DISCHARGE /
ENGINE SHUTDOWN
WARNING
WHEN FIRE UNIT IS ACTIVATED
SIREN WILL OPERATE AND ENGINE WILL
SHUT DOWN AFTER TIME DELAY
PANEL
TEST
FIRE STATUS PANEL
SYSTEM
TEST
WARNING
Machine may return to idle
or shutdown on fault
PROTECTION SYSTEMS
COOLANT LEVEL
OIL PRESSURE
ENGINE TEMP
OIL LEVEL
AUX OUTPUT
SEE NOTE 1
OR-4
YL/BU-4
OR
BR
PU
YL
TO M
ACHI
NE
1
2
3
4
1
2
3
4
R
C
S
B
PU-4
RD-4
RD-4
8
7
6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
J
K
L
A
B
C
D
E
F
G
H
I
J
K
L
8
7
6
5
4
3
2
1
A4
COPYRIGHT - ALL RIGHTS RESERVED
This drawing is the property of REMOTE
CONTROL TECHNOLOGIES PTY LTD (RCT),
and is not to be copied or used in whole or in
part for any purpose without the express
authority of RCT. The drawing is to be returned
to RCT, on demand.
ENERGISED TO RUN
(ETR) IDLE TIMER
(11450)/EPS/FIRE
CONTROLLER
CIRCUIT TO SUIT
CATERPILLAR
MACHINES
EXTERNAL WIRING
www.rct.net.au
UNCONTROLLED DOCUMENT
REV
1
DWG No
478i
STATUS
NTS
SCALE
Released
SHEET
1 of 1
BY
EY
DRN CW
DATE 21/05/13
APPD DAS
DATE 21/05/13
STOCK
CODE ----
PART
NO
----
3rd ANGLE
PROJECTION
ALL DIMENSIONS IN MILLIMETERS
NOTE 1. FOR OFF HIGHWAY TRUCKS (OHT) AND OTHER MACHINES
THAT USE THE C TERMINAL OF THE IGNITION SWITCH;
ENSURE THAT BOTH "AUX CONTROL" WIRES FROM THE
CONTROLLERS ARE CONNECTED AS SHOWN. NOTE THAT THE
C TERMINAL IS DISCONNECTED FROM THE KEY SWITCH
WHEN AUX CONTROL WIRE IS USED AS SHOWN BELOW.
NOTE 2. WHERE THE YELLOW / BLUE AND ORANGE WIRES JOIN,
USE A 2 PIN DEUTSCH PLUG TO MAKE THIS CONNECTION.
NOTE 3. THE IGNITION SWITCH CONNECTIONS ARE MADE BY USING
DEUTSCH PLUGS TO INTERFACE DIRECTLY INTO THE
CATERPILLAR IGNITION SWITCH CONNECTOR PLUG.
NOTE 4. THE IDLE TIMER, EPS AND FIRE CONTROLLER MUST BE
CONNECTED IN THE ORDER AS SHOWN, TO FACILITATE
CORRECT SHUTDOWN PRIORITY SEQUENCE.
NOTE 5. A DIODE IS INSTALLED AS INDICATED WHEN AN EPS
SYSTEM IS INSTALLED.
THE FIRE CONTROLLER RED WIRE CAN BE CONNECTED TO THE
ORANGE WIRE OF THE PRESSURE SWITCH TERMINAL TO AVOID THE
FIRE CONTROLLER TIMING OUT AFTER SIX (6) SECONDS WHEN THE
IGNITION IS SWITCHED OFF.
REV ZONE
DESCRIPTION
BY
DATE
1 L1-J7,
H5
Reordered wires,
removed glands and
wiring from EPS and
replaced 7650 with 5884,
MT 16/12/14
