0.98(circuit exchange efficiency)=150W. It can be shown that the MPPT controller
could significantly improve the charging efficiency.
The MPPT point under changing light intensity and temperature of
environment. The MPPT controller could adjust the MPP timely according to
different conditions.
In practical application, if the solar panel has burnt cells or shadow effect, it may
led to the appearance of multi MPP, only one of which is actual MPP. As shown
below:
MPPT double peaks drawing
If the program handles improperly when multi MPP points appear, the solar system
would work in the wrong points rather than the actual MPP point. As a result, it
would waste the most of power from solar panel as well as 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 so as to improve
the utilization of solar array and avoid the waste of resources.
Important Safety Information
1
This controller is developed on the basis of the characteristic of solar panel. If using other
power supply instead of solar panel, the controller may work abnormally.
2
It is better to install controller indoor. If install the controller outside, please keep the
environment dry, avoid direct sunlight, and keep dustproof and waterproof.
3
The controller will be hot in the process of working. Please do not touch by
hand directly, keep the environment ventilated, and away from other heaters
and flammable.
4
Under the sunlight, the solar panel voltage will be very high (especially 24V/48V system).
Please avoid touching or terminal short circuit. Keep your hands dry, use insulating tool, and
stand on dry field when it need to be operated.
5
The battery has acidic electrolysis. Please put on goggles during installation. If you are
accidentally exposed to electrolysis, please rinse with water.
6
The battery has huge power. Forbid any conductor short circuit of the positive and negative
poles of battery. Suggest to adding a fuse between battery and controller. (Slow motion type,
and the action current of the fuse should be 1.5 times more than the rated current of the
controller)
7
Please install the controller in a place where children can not touch.
The suggestion of using
1
The controller could detect the environmental temperature to adjust the charging voltage.
Accordingly, the controller should be closed to battery as near as possible.
2
Recommend system current density of cables should be less than
3A/mm
2 .,
Unreasonable selection of cables will increase the system
consumption or even causing burning.
3
Try to use multi strand copper wire in order to connect with the
terminal more firmly. Loose power connection and/or corroded wires
may result in resistive connections that melt wire insulation, burn
surrounding materials or even cause fire.
4
Please keep the battery full charged frequently(one time each month at least), or the
battery will be destroyed.
5
This product has solar panel input limited power function, which means, theoretically, no
matter how much power input, the controller will limit the input power to operating under the
rated power. But please pay much attention to the following two points:
The short circuit of solar panel should be less than rated current of controller.
The lower the temperature, the higher the Open Circuit Voltage of solar panel. Please
ensure that in no case will the Open Circuit Voltage of solar panel array exceed 100V,
otherwise it will trigger protection or damage the controller.
Installation Instructions
Controller Fixed
1)
The controller should be installed in well-ventilated place. Avoid direct sunlight, high
temperature and place where water can easily 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 should be 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 of controller are 189mm*85mm
，
and the diameter of mounting
recess is 5mm
。
5) The controller has aluminum fins for natural cooling, so we strongly
suggest hanging installation for better air flow cooling effect.
Controller Connection
All terminals are in tight status after factory. In order to connect well,
please loose all terminals at first.
Please do not change the following order of connection. The controller has battery voltage
auto selection function, so battery should be connected at first, otherwise it will cause
system voltage recognition fault.
Before connection, please confirm the system voltage fit for your choosing controller, and
the open circuit of solar panel and maximum power are both at the using range of controller
as well.
