ROGUE MPT-3024, Installation Manual And Owner'S Manual, Page: 5 / 52

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1. Introduction and Overview
The Rogue MPT-3024 is a highly efficient 30 amp photovoltaic charge
controller that features a proprietary maximum power point tracking algorithm
for peak performance under a variety of atmospheric conditions. The MPT-
3024 constantly monitors the PV array’s output and automatically readjusts it
as necessary to extract the most power available from it at any given moment.
The array is never disconnected from the battery to make measurements, nor
are periodic sweeps of the array conducted while the controller is operating in
the power tracking stage. Either of these methods can result in more downtime
and less power being delivered to the batteries. Boost of over 40% may be
achieved with the MPT-3024 when the batteries are in a low state of charge,
the PV array is cold, and the sun is bright.
The MPT-3024 is based on a DC-DC buck converter topology. As such, it’s
capable of operating with a PV array input voltage that is higher than the
voltage of the battery it’s charging. The MPT-3024 will accommodate a 24-volt
nominal PV array with either a 12-volt or 24-volt battery bank, or a 12-volt
nominal PV array with a 12-volt battery bank. It will not operate with a PV array
that generates less voltage than that of the battery it’s charging. Output
current is electronically limited to 30 amps.
The MPT-3024 has been designed and built using only the highest quality,
most reliable components available, including ultra-low resistance MOSFETS;
long life, high-temperature capacitors; a 40-MHz microprocessor; and a
heavy-gauge, low resistance inductor. Additionally, the MPT-3024 senses
current without the use of resistive shunts. This results in an output gain of at
least 3 watts over conventional current shunt technology.
The MPT-3024 utilizes an advanced six-stage charge routine to ensure that
batteries are maintained properly for long life and minimal maintenance. All
setpoints are fully adjustable from the front panel and are stored in a
non-volatile memory that retains information even when the power is removed.
Setpoints may be retrieved, viewed, and altered on the LCD display at any time
during normal operation. Also included with the unit is a remote temperature
sensor that will alter the programmed setpoints based on the temperature of
the batteries being charged. This prevents overcharging when the batteries are
warmer, and undercharging when the batteries are cooler.