Hyundai Yanmar TNV Series Manual page 67

CONTROL SYSTEM
Disable
Utilizing features 1 and 2 above permits establishing an auto start/stop system that can be operated through
an external sequence. See Figure 2-38 for details. In the figure, a machine start recognition signal (E8) is
given from an external control device in place of the key switch.
E24 APP-IP1
E39
E40
ECU
E20
E8
Battery
The engine run signal goes on at engine start and goes off at engine stop. If it is not detected that the engine
has started, the start signal must be turned off within 160 seconds as a guideline. Otherwise, the starter tries
to start the engine repeatedly in intervals of 30 seconds.
2-48
START position
ON position
OFF position
Self-diagnostics
ON
OFF
Enable
Figure 2-37 External switch and starter disable/enable circuit
External controller (Ex.: PLC)
Run signal
• Goes off when the engine stops.
Start signal
• Must be tuned off when it is detected that the engine has started.
External
• Must be turned off within 160 seconds if it is not detected that the engine has started.
switch
CAN communication
Relay
(NO)
APP-OP1
S
Engine start
Starter
recognition
B
Figure 2-38 Connection diagram of an auto start/stop system
Ex: Safety pedal
Vcc
Vcc
E8
E7
E24
Starter Ena
manual SW Relay
ECU
NO
E20
E45, E47
12V
12V
TNV Application Manual
ON
OFF START
Key SW
B
S
Battery
Starting
motor
Run signal
Start signal