M0488a.docx | Rev 1.7 | Modified on 19/05/2020 | © Remote Control Technologies Pty Ltd
15 | 26
Typical Engine Protection System Schematic to suit 4-Function Water Cooled
Engines (390x)
Figure 4 Drawing 390x
– Typical engine protection system schematic
9
8
7
3
4
5
6
11
12
1
2
ENGINE TEMP
OIL PRESSURE
COOLANT LEVEL
ALARM
IDLE CONTROL
ETR CONTROL
START INPUT
NOT USED
NOT USED
8 - 30V SUPPLY
GROUND
YL-4
PK-4
WH-4
GN-4
BN-4
YL/BU-4
PU-4
OR-4
BK-4
ENGINE PROTECTION
SYSTEM CONTROL
T°
BK-4
YL-4
N/C
ENGINE
TEMPERATURE
SWITCH
P
OIL
PRESSURE
SWITCH
N/O
BK-4
PK-4
WH-4
L
COOLANT
LEVEL
PROBE
GROUND VIA
COOLANT
TO TANK
BK-4
GN-4
+
-
FAULT
ALARM
CAUTION
OUTPUT CURRENT
RATING
12AMP MAX
!
BK-4
BN-4
+
-
NOTE 1
THIS IS A TYPICAL ENGINE
PROTECTION SYSTEM SCHEMATIC
ILLUSTRATING ALL INPUTS AND
OUTPUTS. THIS SHOULD ONLY BE
USED AS A GUIDE AS DIFFERENT
MACHINES REQUIRE DIFFERENT
COMPONENTS.
FOR MORE INFORMATION PLEASE
CONTACT THE MANUFACTURER.
IDLE CONTROL
SOLENOID
CAUTION
OUTPUT CURRENT
RATING
12AMP MAX
!
BK-4
YL/BU-4
+
-
ETR RUN
SOLENOID
CAUTION
OUTPUT CURRENT
RATING
12AMP MAX
!
8 - 30VDC
PROTECTED
SUPPLY
(RECOMMENDED
10AMP
PROTECTION)
TO START
TERMINAL AT
KEY SWITCH
MACHINE
(FRAME)
GROUND
NOTE 2
IF NOT ALL FUNCTIONS ARE
REQUIRED, A BLANK LABEL IS PLACED
ON THE UNUSED FUNCTION AND THE
CORRESPONDING INPUT WIRE MUST
BE CONNECTED TO GROUND.
RD-4
GY-4
BK-4
C
A
B
OIL
LEVEL
SWITCH
+
S
-
10
OIL LEVEL
GY-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.
PANEL EPS 4
FUNCTION WATER
COOLED VER 2
EXTERNAL WIRING
www.rct.net.au
UNCONTROLLED DOCUMENT
REV
1
DWG No
390x
STATUS
NTS
SCALE
Released
SHEET
1 of 1
BY
SD
DRN
GT
DATE 08/03/10
APPD SD
DATE ----
STOCK
CODE
MH-EPS-4-01
PART
NO
9200
3rd ANGLE
PROJECTION
ALL DIMENSIONS IN MILLIMETERS
WIRE LEGEND
BK - BLACK
PK - PINK
BU - BLUE
PU - PURPLE
BN - BROWN
RD - RED
GN - GREEN
WH - WHITE
GY - GREY
YL - YELLOW
OR - ORANGE
TQ - TURQUOISE
REV ZONE
DESCRIPTION
BY
DATE
1
C2
Pins re-ordered
MT
23/09/15
