Installation Manual

Electrical & Electronic Application And Installation Manual
Production Release Version 1.0
Page 198
Figure 14.1 Inducement Reduced Time / Performance Configuration
14.3.3.2 Level 3 Engine Idle Down or Shutdown
The Engine Idle Down or Shutdown option provides configurability of the
engine response once a L3 Inducement has been activated. The default
setting for all engines delivered from Perkins is Reduced Performance.
14.3.4 Repeat Occurrence and Final Inducement Handling
Both Tier 4 Final and Stage IV emissions regulations require specific system
reactions to repeat occurrences and persistent failure of an emissions critical
component or system. These requirements are covered within the Perkins
World Wide inducement strategy as detailed in the following sections.
14.3.4.1 Final Inducement handling
In the event of an emissions system fault reaching a Level 3 severity the
following actions will take place;
• Level 3 criteria must be active for 20sec before any Inducement is
activated.
• After 20sec the engine will proceed to the selected level 3 inducement
i.e. one of the following;
- 5-min cool down at low idle / 50% Torque reduction then shutdown,
or
- Idle only operation at no load
14.3.4.2 Repeat Fault Occurrence Handling
For All emission critical failures covered by the inducement strategy other than
DEF level, there is a requirement for repeat occurrences of faults to be
monitored.
To meet the legislation requirements Perkins engines will monitor for a repeat
occurrence of a fault for 40hrs after the fault condition is healed. If a system
fault occurs within the same category within 40hrs the times for warning and
inducements as shown in sections 14.3.2.1 to 14.3.3.3 will be reduced
(indicated by the Inducement Time Repeat Occurrence row).