Installation Manual

Electrical & Electronic Application And Installation Manual
Production Release Version 1.0
Page 190
14.2.4 Engine Overspeed
14.2.4.1 Engine Overspeed Monitoring Mode Operation
The engine ECM will automatically monitor engine speed to protect the engine
from exceeding a pre-defined maximum value. This function is employed to
protect both the engine and the drivetrain components from high engine
speeds. The Engine Overspeed function can be configured at both Severity
L1 and Severity L3.
Once the engine ECM detects that the engine speed has exceeded one or
more of the defined threshold limits a corresponding event code is raised as
shown below. In addition engine fuelling is cut in an attempt to reduce engine
speed.
Service
Tool
Description
J1939
Description
Status
SPN
(J1939)
FMI
(J1939)
Event
Code
Engine
Action (If
Enabled)
Engine
Overspeed
Engine Speed
Severity L1 190 15 E362-1 Warning
Lamp Only
Table 14.11 engine Overspeed Monitoring
14.2.4.2 Engine Overspeed Monitoring Mode Configuration
Using the Perkins EST service tool the following parameters can be
configured.
The Maximum engine overspeed limit is set within the ECM software and
cannot be adjusted however the trigger points for both Severity L1 and
Severity L3 can be configured below this value within the following range
shown below.
Engine Range
Trip Threshold Min
Trip Threshold Max
1206F
Trip Threshold Max
1204F
All 2600rpm 3000rpm 3300rpm
Table 14.12 engine Overspeed Monitoring Mode Configuration
14.2.4.3 Engine Overspeed Monitoring Mode Installation
No installation is required for the engine overspeed monitoring function.