User manual
DKG-307 User Manual V-01.03 
(14.02.2006)
      - 5 - 
2. INPUTS AND OUTPUTS 
RS-232 SERIAL PORT: This connector provides serial data input and output for various purposes like remote 
monitoring and remote programming. 
EXTENSION CONNECTOR: This connector is intended for the connection to output extension modules. The 
optional relay extension module provides 8 programmable 16A relay outputs. The unit allows the use of up to 
2 I/O extension modules. 
Term  Function  Technical data  Description 
1  GENERATOR CONTACTOR 
Relay output, 16A-AC
This  output  provides  energy  to  the  generator 
contactor. If the generator phases do not have 
acceptable  voltage  or  frequency values,  the 
generator contactor will be  de-energized.  In 
order  to  provide  extra  security,  the  normally 
closed  contact  of  the  mains  contactor  should 
be serially connected to this output.  
2  U 
3  V 
4  W 
Generator phase 
inputs, 0-300V-AC 
Connect the generator phases to these inputs. 
The  generator  phase  voltages  upper  and 
lower limits are programmable. 
5  GENERATOR NEUTRAL 
Input, 0-300V-AC  Neutral terminal for the generator phases. 
6  MAINS NEUTRAL 
Input, 0-300V-AC  Neutral terminal for the mains phases. 
7  T 
8  S 
9  R 
Mains phase inputs, 
0-300V-AC 
Connect the mains phases to these inputs. 
The mains voltages upper and lower limits are 
programmable. 
10  MAINS CONTACTOR 
Relay output, 16A-AC
This  output  provides  energy  to  the  mains 
contactor.  If  the  mains  phases  do  not  have 
acceptable  voltages,  the  mains  contactor  will 
be  de-energized.  In  order  to  provide  extra 
security, the normally closed contact of the 
generator  contactor  should  be  serially 
connected to this output. 
11  GROUND 
O VDC  Power supply negative connection. 
12  BATTERY POSITIVE 
+12 or 24VDC  The  positive  terminal  of  the  DC  Supply  shall 
be  connected  to  this  terminal.  The  unit 
operates  on  both  12V  and  24V  battery 
systems. 
13  SPARE SENDER INPUT 
Input, 0-5000 ohms  No connection to this terminal. 
14  OIL PRESSURE SENDER 
Input, 0-5000 ohms  Analogue  oil pressure sender  connection.  Do 
not connect the sender to other devices. The 
input has programmable characteristics and 
connects to any kind of sender. 
15  COOLANT TEMP. SENDER 
Input, 0-5000 ohms  Analogue  high  temperature  sender 
connection.  Do  not  connect  the  sender  to 
other  devices.  The input  has  programmable 
characteristics and  connects to any  kind of 
sender. 
16  CHARGE 
Input and output  Connect the charge alternator’s D+ terminal to 
this  terminal.  This  terminal  will  supply  the 
excitation current and measure the voltage of 
the charge alternator. 










