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DBM20A 12V/12V-System with IBS-DBS and Relay

Extra functions and applications with IBS-DBS

It is necessary to have a micro controlled version of the IBS-DBS to get all the extra functions. There has to be the light blue µC-sign on the cover of the IBS-DBS. Extra functions for analogue DBS systems are described on this page (‘DBS analogue versions’).

DBS software version 8.1

This version is fully DBM20A compatible.

  1. Link Start:
    Vehicle can be started from Aux battery by pushing Link-Button from IBS-DBS.

  2. Automatic Winch Support:
    The DBM20A recognises Winch usage and switches to Relay Support Mode for optimal load sharing on both batteries.

  3. Manual Winch Support/Link:

    Activation of 30 minutes manual Link by pushing Link-Button (on DBS) once.

    By pushing Link Button twice within 3 seconds the 2 hours manual Link can be activated.

    Manual reset by pushing Auto button on DBS.

  4. Solar Charge:
    With installed solar panel on Aux battery the Main battery will be charged as well when Aux voltage is higher than 13.5V.

  5. Fast Charge:
    When the car is started the alternator first charges both Main and Aux battery (Fast Charge) and then the DBM20A switches to DC/DC Charge to get a 100% full Charge as configured.

  6. RBM function:
    Relay Booster Module Function for Link Start when a low Main battery is detected.

 

DBS software version 2.2 to 8.0

These versions are partly DBM20A compatible.

Extra functions 1 Link start, 2 automatic Winch support, 4 solar charge, 5 FastCharge, aswell as 6 RBM function work as described in ´DBS software version 2.2 to 8.0´.

3 manual Winch support/Link:

Engine has to be turned off:

30 minutes Link can be activated by pushing Link-Button of DBS for 6 seconds until the DBS beeps. Or for activating the 2 hour Link go through following steps within 3 seconds: push Link -> push Auto -> push Link for 6 seconds until it beeps (on DBS).

Now start the engine.

For reseting respectively to get back to normal functionality of the DBM20A it is necessary to push Auto button for another 6 seconds until it beeps.

DBS analogue versions

The analogue version are not compatible with the DBM20A.

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 as well 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 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 25mm2) 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 6 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) at 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)!

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