DBM20A 24V/12V System Standard (with optional IBS-DBD Display)
For a better understanding of how the system is programmed read first the Programming the system steps on page 6. Otherwise it can be that the system has to be reinstalled.
Read aswell the notes for the mounting and wiring extension on page 8 before to start 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 23.8V 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 25.3V. The DC/DC Charging automatically starts when Main voltage is higher than 26.2V.
- If needed connect the light blue IGN wire on Car Ignition (Terminal 15), otherwise leave unconnected.
- Connect IBS-DBD as shown above (red on plus main, blue on plus aux and black on GND)
- Connect all black GND wire.
- Connect now the red wire (+main) (ATTENTION: system is starting up -> refer to page 6 Programming the system). (Continue installation only after System has switched to Stand-By mode)
- Connect the blue wire (+aux) at last.
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)!
- Red (+main) wire always on main battery with 24V!