Installation Manual

Electrical & Electronic Application And Installation Manual
Production Release Version 1.0
Page 217
Electrical Wiring
It is recommended that a 4 position ignition keyswitch is used on all machines
installed with the Delayed Engine Shutdown feature. The 4
th
position of the
ignition key switch must be wired back to the engine User Defined Shutdown
input via a relay. It is also recommended that a DES Active indicator is wired
from the ECM J1 pin 48 to an instrument cluster to ensure that the operator is
made aware that the engine is currently in a cool down state.
Figure 16.7 DES Installation Wiring 4 position Key Switch
More information regarding the ISO symbol and message can be found in
section 13.0.
In the event of the 4 position key switch being unsuitable for the application
then a means of operating the User Defined Shutdown input to override DES
must be provided to the operator. This can be achieved by using a specific
User Defined Shutdown switch or J1939 message as shown in Figure 16.8.
Parameter
PGN
SPN
State
Engine Aux Shutdown
Switch
F001 970 00 (OFF) 01 (ON)
Figure 16.8 User Defined Shutdown Integration Options