Installation Manual
Electrical & Electronic Application And Installation Manual
Production Release Version 1.0
Page 128
10.2.4.3 Intake Air Shutoff Valve Installation
The intake air shutoff valve is controlled by the engine ECM using an electrical
solenoid. The solenoid requires electrical connection to the engine ECM as
shown in figure 10.3.
Figure 10.3 Intake Air Shutoff Valve Installation Wiring
10.2.5 Overspeed Verify Switch
The overspeed verify switch compliments the Air Intake Shutoff feature. The
overspeed verify switch allows the user to verify that the shutoff feature is
operating correctly without exceeding or reaching the engine overspeed
speed limit. The switch input allows the user to test the air intake shutoff
feature at 75 percent of the engine speed limit. The switch is a normally open
switch. When the switch is closed and the actual engine speed is equal to or
exceeds 75 percent of the pre-programmed engine limit the air intake shutoff
feature is activated. Figure 10.4 shows the Wiring required for this feature to
be activated.
Figure 10.4 Overspeed Verify Switch Installation Wiring
10.2.6 Datalink stops
As with the remote stop button, described above, the datalink stop is not fail
safe and does not meet the requirements of emergency stop legislation so
should not be relied on to assure the safety of machine operators or other
personnel.
Datalink stops may be used in the following circumstances;
•
Immobilisers
•
Machine protection strategies
•
Automatic machine features (e.g. idle shutdown timer)
•
Stopping machines by radio control or other telemetry. Geo-fencing is a
particular application, where a machine will not operate outside defined
map coordinates
It is recommended that if such features are implemented, then they are clearly
documented and communicated to the final users and owners of the machine.
If this is not done then there may be complaints that the engine is stopping
unexpectedly.
49
2A ACTUATOR DRIVER RETURN
53
AIR SHUTOFF SOLENOID
36
SWITCH INPUT RETURN
50
FAN REVERSE SWITCH /
OVERSPEED VERIFY SWITCH
OVERSPEED VERIFY SWITCH