16
For a better understanding of how the system is programmed first read the Programming the system
steps on page 8. Otherwise the system may need to be reinstalled.
Read the notes for the mounting and wiring extension on page 11 before starting the installation.
Please read Instructions carefully prior to installation.
Choice of light blue connection
IGN
:
With alternators (smart alternators) that cut off charge temporarily, connect IGN wire to Car Ignition
(Terminal 15). When the alternator turns off, the DBM20A keeps charging until the Main voltage
drops below 11.9V or the alternator kicks in again.
With all other alternators do not connect the light blue (IGN), DBM20A stops charging when the
Main voltage drops below 12.7V. The DC/DC Charging automatically starts when Main voltage is
higher than 13.3V.
1.
If needed
connect the light blue IGN wire on Car Ignition (Terminal 15), otherwise leave
unconnected.
2. Connect IBS-DBS as shown above (red on plus main, blue on plus aux, black on GND).
3. Connect the relay with the green wire (terminal 86) and a GND wire (terminal 85).
4. Connect the power wires (minimal 25mm
2
) between
plus main and relay
and
plus aux and relay
.
5. Connect all black GND wires.
6. Connect now the red wire (+main) (
ATTENTION:
system is starting up -> refer to page 8
Programming the system
).
(Continue installation only after System has switched to Stand-By
mode)
7. Connect the green wire of DBS to the yellow Link/Prog wire of the DBM20A.
8. Connect the blue wire (+aux)
last
.
If relay wasn’t found due to missing aux connection while programming follow the steps in
Relay not
found – what now?
Notice
For a safe installation it is necessary to install the fuses in the red wire path (+ main: 30A) and in
the blue wire path (+ aux: 30A)!
