User manual
DKG-307 User Manual V-01.03 
(14.02.2006)
      - 3 - 
1. INSTALLATION 
1.1 Introduction to the Control Panel 
The unit is a control and protection panel used in gensets. It shows the measured values on its 
displays. The unit is designed to provide user friendliness for both the installer and the user. Programming 
is usually unnecessary, as the factory settings have been carefully selected to fit most applications. 
However programmable parameters allow the complete control over the generating set. Programmed 
parameters are stored in a Non Volatile Memory and thus all information is retained even in the event of 
complete loss of power. 
The measured parameters are: 
Mains voltage phase R to neutral 
Mains voltage phase S to neutral 
Mains voltage phase T to neutral 
Mains voltage phase R-S 
Mains voltage phase S-T 
Mains voltage phase T-R 
Gen voltage phase U to neutral 
Gen voltage phase V to neutral 
Gen voltage phase W to neutral 
Gen voltage phase U-V 
Gen voltage phase V-W 
Gen voltage phase W-U 
Gen current phase U 
Gen current phase V 
Gen current phase W 
Gen frequency 
Gen total KW 
Gen total cosΦ 
Battery voltage, 
Coolant temperature 
Oil pressure 
Gen frequency 
1.2 Mounting the Unit 
The unit is designed for panel mounting. The user should not be able to access parts of the unit 
other than the front panel. 
Mount the unit on a flat, vertical surface. The unit fits into a standard panel meter opening of 151x111 
millimeters. Before mounting, remove the retaining steel spring and connectors from the unit, then pass the 
unit through the mounting opening. The unit will be maintained in its position by the steel spring. 
Engine body must be grounded for correct operation of 
the unit, otherwise incorrect voltage and frequency 
measurements may occur. 
  The output of the current transformers shall be 5 Amperes. The input current rating of the current 
transformers may be selected as needed (between 10/5 and 9000/5 amps). Current transformer outputs shall 
be connected by separate cable pairs from each transformer, to related inputs. Never use common terminals 
or grounding. The power rating of the transformer should be at least 5 VA. It is recommended to use 1% 
precision transformers. 
  If analogue senders (e.g. temperature or oil pressure) are connected to the unit, it is not possible to 
use auxiliary displays, otherwise the unit may be destroyed. If temperature or oil pressure displays are already 
present on the generator control panel, do not connect the senders to the unit. The unit is factory programmed 
for  VDO  type  senders.  However  different  types  of  senders  are  selectable  via  programming  menu.  Please 
check the programming section. 
  The programmable  digital  inputs  are compatible  with  both ‘normally  open’ and  ‘normally  closed’ 
contacts, switching either to BAT- or BAT+. 
  The charge alternator connection terminal provides also the excitation current, thus it is not necessary 
to use an external charge lamp. 










