CONTROL FUNCTIONS (CONT’D) Application Interface Outline (Cont’d) Operational limitations in failure situations Operational limitations are applied to the engine when alarms or failures shown in the table on the bottom of this page occur. These limitations can be changed depending on properties of the machine to which the engine is installed. The table below shows mapping flags to be used for limiting the engine operation.
Flag setting 6 5 4 3 2 1 0
Limitation Speed limit
Output limit Engine stop
1800min-1 1500min-1 No limit 1800min-1 1500min-1 No limit
92% 92% 92% No limit No limit No limit
The table below shows alarms and failures at which operational limitations are applied to the engine, and flags for the limitations. No. *2) 2 7 9 20 21 23 24 25 26
Failure item Accelerator sensor failure *1) Backup speed sensor activation EGR valve failure ECU overheat alarm Oil pressure low alarm Reserve Air cleaner blockage alarm Oily water separator alarm Coolant temperature alarm
Default flag 1 2 5 (Unchangeable) 0 0 Å| 0 0 0
*1)See "Application interface outline" for details on accelerator sensor setting. The applied speed limit at the time of accelerator sensor failure has the different map from the other failure speed limit, so that the special speed at the time of accelerator sensor failure can be set. *2) shows the number inside.
10-40-53 101 of 182
E55W, E60, E80 Electronic Control System Manual
