DKG-307 User Manual V-37 (01.03.2012)
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The unit offers possibility of updating the firmware in the field. The firmware is updated through
the RS-232 serial port using Rainbow or a special DOS program.
The unit will go to firmware download mode with a special command from the PC program. In
download mode, the display of the unit will show “DL V1.00”
During firmware update process, the progress is visible through a percentage counter on the
screen.
The firmware update operation will take around 3 minutes.
After completion of the update a special command will set back the unit to normal operation
mode.
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.
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