Specifications

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Some specifics
The microprocessor is the heart of the controller. The battery level is constantly checked by the
microprocessor and compared to the active mode’s (Float, Bulk or Equalize) set point to determine how much
(if any) current should flow into or out of the batteries. As the battery’s level of charge increases, so does the
voltage of the battery (the battery’s level of charge can be determined by the voltage of the battery.) As the
charge level increases the controller may use very short pulses of energy to “top off” or maintain the charge at
the optimum level. These pulses of energy will be of varying lengths as required. This charging algorithm is
referred to as pulse width modulation (or PWM), and when properly controlled, offers a very suitable method of
charging deep cycle batteries to ensure good battery health and longevity.
Settings are of course user changeable! By simply turning the set point potentiometers with a small
screwdriver, you can quickly adjust the trip point for the float or bulk mode. (Equalize mode is about 7% higher
then the bulk mode).
Two very powerful 230A mosfets ensure plenty of reserve capacity above the rated 60 amps this controller has
been designed to handle. The mosfets are arranged in such a manner that they can handle currents in either
direction; that is, they can perform in the capacity of a solar charge controller or a diversion mode controller.
The controller automatically determines the proper mode of operation. If the controller senses that there is
voltage on the “Solar/Diversion” terminal then it assumes that the controller has been wired in the solar mode.
If there is no voltage present on this terminal, then the diversion mode will instead be chosen. This terminal is
checked often by the microprocessor to ensure the controller selects the proper mode. If no connection has been
made to the “Solar/Diversion” terminals, then the mode may be either.
The controller can handle surges in excess of 80 amps; however, sustained high amperage currents will cause
the unit to heat up rapidly. It is recommended that you use the controller to control currents that will not exceed
the 60 amps of solar energy under the best of charging conditions. If using the controller in the diversion mode,
you should not use a diversion load (or useful load) that causes the controller to dissipate more than 60 amps.
Inductive loads (like motors) can draw very large currents at startup and shut down. If you will be using a motor
as a load, please do not exceed 50 amps of current to insure the mosfets are not damaged due to high turn on/off
surges. We have included protection against transients on the PCB; however, it is better to properly size the load
to prevent undue stresses.
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st
a note about amperage and voltage – This controller has a very high amp rating! 60 Amps, this is a lot
of current; please take all applicable safety precautions to ensure your safety and to prevent injury or
death from electrocution or fire.
This controller is suitable for operation in a 24-volt system, which may have charge and overcharge
voltages exceeding 60 volts.
60+ volts at these amperages can be LETHAL! – It only takes a micro-amp and the right
(or wrong conditions) at higher voltages to kill you! Don’t take chances!
Disconnects should always be available that do not require you to open a box or enclosure to activate or
disengage.
About wire size -- 60 amps is a lot of current! – Ensure you have selected an adequate size wire for the
amperage you will be controlling. Undersized wire can result in high heat build up in the wire and connections
possibly leading to a fire. Use extreme caution when installing or servicing this controller. Always
disconnect the energy source before servicing this unit.