DKG-119J User Manual V-32
(09.07.2012)
- 23 -
Volvo engines equipped with
EMS-II
engine control unit have the engine speed selectable
through the J1939
– CANBUS. The unit offers the possibility to the user to switch between the primary
and secondary speed using the programming menu.
If the program parameter
Volvo Speed Toggle
is increased, the unit will freeze for a few
seconds and switch the engine to 1800 rpm, which is generally the secondary speed. When the
parameter is decreased, the speed is set to the primary speed, which is generally 1500 rpm.
Please note also that a fine adjustment of the engine speed in the ± 8 % range may be done
using the program parameter
J1939 Speed Adjust
.
In engine control mode, the unit is supposed to control an engine without alternator.
The engine control mode is activated by a program parameter in the
Controller
Configuration
group.
When the
Engine Control Mode
is activated:
-the unit will not display genset AC parameters (volts, amps, kW and pf).
-genset voltage and frequency protections are disabled. However engine rpm protections will
be active.
It is strongly recommended to enter correct low and
high rpm limit values in order to enable engine speed
protection.
Daha önceki parametre değerlerine geri dönüş
mümkün değildir.
6.22 Engine Control Mode
The unit must be in OFF mode when speed is
switched, otherwise the switching will not be
performed.
6.21 Changing the Default Engine Speed in Volvo Engines
