The MPPT point under changing light intensity and temperature of environment, The MPPT
controller could adjust the MPP timely according to different conditions.
In application the solar panel have burnt cells or shadow effect, may cause multi MPP appearance,
but only one of these point is actual MPP as shown below.
MPPT double peaks drawing
When multi MPP points appear, if the program is not perfect, it will cause the solar system to work in
the non actual MPP points, waste most of power from solar panel, seriously affect the normal operation
of solar system. Our company’s MPPT controller could accurately track the actual MPP point in the
double peaks or multi peaks state, improve the utilization of solar array and avoid the waste of
resources.
Important Safety Information
①This controller is base on solar panel feature researching, if use other power supply instead of solar panel, the
controller may cause fault.
②It is better to install controller in the room, if install the controller outside, please keep the environment dry, avoid
direct sunlight and waterproof well.
③The controller will be hot in process of working, please keep the environment ventilation, away from flammable.
④The Voc of solar panels is high (especially 24V/48V system, please take care.
⑤The battery had acidic electrolysis, please put on goggles during installation. If you
accidentally exposed to electrolysis, please rinse with water.
⑥The battery has huge power, forbid any conductor short circuit the positive and negative poles of battery. Suggest
to adding a fuse between battery and controller. (Slow motion type, the action current of the fuse should be 1.5
times rated current of the controller)
⑦Please install the controller in a place where children can not touch.
The suggest of using
①The controller could detect the temperature of environment to adjust the voltage of
charging, so that the controller should be closed to battery as near as possible.
②Recommend system current density of cables less than 3A/mm2, Unreasonable cable selection will increase the
system consumption, even burning.
③Try to use multi strand copper wire in order to connecting with the terminal firmly. Loose power connection
and/or corroded wires may result in resistive connections that melt wire insulation, burn surrounding materials
or even cause fire.
④Please keep the battery full charged (one time each month at least), or the battery will be destroyed.
⑤This product have limited solar panel input power function, in theory, no matter how
much power of solar panel input, the controller will limited the input power under rated
power, but must pay attention to the following two points:
The short circuit of solar panel less than rated current of controller.
The Open Circuit Voltage of solar panel increased with decreasing temperature, please ensure in any case, the
Open Circuit Voltage of solar panel array will not exceed 100V, otherwise it will trigger protection or
damage to the controller.
Installation of Instruction
Controller Fixed
1) The controller should be installed well-ventilated place, avoid direct sunlight, high temperature and do not
install in location where water can enter the controller.
2) Please select correct screw to fix the controller on the wall or other platform. Screw M4 or M5, Screw cap
diameter less than 10mm.
3) Please reserve enough space between the wall and controller, to allow for cooling and cable connection.
4) The mounting holes distance is 189mm*85mm，diameter of hole is 5mm。
5) Aluminum fins for natural cooling, we strong suggest hanging installation, this is better for air flow cooling effect.
Controller Connection
All terminals are in tight status after factory, in order to well connected, please loose all terminals at first.
The following order of connection please do not free change, the controller have battery voltage auto selection
function, or cause system voltage recognition fault.
Before connection, please confirm the voltage of system fit for our controller, the open circuit of solar panel and
maximum power at the using range of controller.
In order to avoid fault installation, please refer to below procedure
1) As figure, first connected the battery to controller correct poles. In order to avoid short circuit, please screw the
