The low voltage disconnect charge controller is used to manage power at sites that are configured with one or more solar panels. The correct wiring configuration is shown below. The LVD should disconnect the load (usu. the DAS) when the battery drops to around 11.5 volts. The load should be reconnected when the battery voltage goes above 13.0 volts.

• Minimizes DAS error messages as it continually reboots and tries to spin the disk at a site where the voltage is too low to spin the disk, but will still allow the DAS to operate.
• Prevents sulfation damage to the batteries due to the battery being held in a deeply discharged state for any extended length of time.

Because of the nature of the LVD, if the batteries are below 13 volts when wired up the the charge controller, the LVD will be activated (ie: NO power to the load). This will be indicated by the activated LED being on. Once the solar panels are charging the batteries, the LVD can be reset by disconnecting the batter(y/ies) momentarily.

You can use the LVD charge control assembly in a non solar site as well just for the disconnect ability. If you need to reset the LVD, you will need to fool the LVD into thinking that is has some sort of charging system. One way that we have tested for doing this is to use two 9 volt transistor batteries wired in series to obtain 18 volts. This 18 volts can be connected in place of the solar panel array just long enough to reset the LVD (see above). Once the LVD is reset, the transister batteries should be disconnected.