DDEC VI ELECTRONIC CONTROLS APPLICATION AND INSTALLATION
5.16
LIMITERS
The CPC supports two optional programmable engine limiters: Limiter 0 (LIM0) and Limiter 1
(LIM1). These Limiters are each associated with a digital input. When the input is switched to
ground, the limiter becomes active. If more than one Limiter input is grounded at the same time,
the Limiter with the lowest limitation parameter setting will prevail.
The CPC can also limit the minimum and maximum engine speeds.
5.16.1
OPERATION
When the appropriate input is grounded, Limiters can decrease the speed/load/torque from the
setting of the Common Limiter parameters, but cannot increase them beyond the Common
Limiter settings.
Each Limiter can set:
□
Maximum engine speed (speed limiting applications)
□
Minimum engine speed (switched high idle applications)
□
Maximum engine torque (torque limiting applications)
□
Road speed limit (alternate road speed limit)
□
Maximum vehicle acceleration
“Maximum Engine Speed” will limit the upper engine speed all the time. Limiter switches can
further limit the maximum engine speed if programmed. “Minimum Engine Speed” de
fi
nes the
lower limit of engine speed operation . Limiter switches can increase the limit if programmed and
installed.
All information subject to change without notice.
(Rev. 01/07)
5-97
7SA827 0701
Copyright © 2007 DETROIT DIESEL CORPORATION
