greater than the rated charging power of the controller If the input power exceeds the rated charging power of the
controller, the controller will charge the battery according to the rated charging power of the controller. The actual
operation power of PV array meets the following conditions:
When the actual operating power of the PV array is less than the rated charging power of the controller,
the controller operates at the maximum power point of the PV array.
If the power of the PV array is greater than the rated charging power of the controller, the operation
time at full power of the controller will be extended, so more energy can be obtained to charge the
battery.
Attention：When the input wiring of PV array is correct and the actual power is more than 2
times of the rated power of the controller, the controller may be damaged. When the input
of PV array is reversed and the current actual power is more than 1.5 times of the rated
power of the controller, the controller will be damaged.
4．Fixation of controller
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. If it is to be sealed installation, please ensure
that the box can be reliably cooled.
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, at least 150 mm up and down to allow for
cooling and cable connection.
4) The mounting holes distance is
176mm*226mm
，diameter of hole is 5mm.
5) Aluminum fins for natural cooling, we strong suggest hanging installation, this is better for air flow
cooling effect.
5．Controller Connection
Before connecting, make sure that the system voltage matches with the selected products, and
whether the open circuit voltage and maximum power of the PV array are within the reasonable
range of the controller.
The following order of connection please do not free change
,
The controller has the function of
automatic identification of battery voltage. The battery should be connected first, otherwise it
may cause system voltage identification error.
All terminals are in tight status after factory, in order to well connected, please loose all terminals
at first.
If there is a short circuit at the terminal of the controller, it may cause fire or explosion! Please
operate with caution! It is strongly recommended to add air switches or fuses between the
battery and the controller and between the solar panel and the controller, and disconnect all air
switches or fuses before wiring (the air switch or fuse shall be selected according to 1.5 ~ 2
times of the rated current of the controller)
In order to avoid fault installation, please refer to below procedure
1) As shown in the figure, connect the positive wire of the battery to battery positive terminal of the
controller(terminal 8), and the negative wire to battery negative terminal of the controller(terminal 7). The
connecting wire between the battery and the controller shall be as short as possible, and the recommended
distance is between 30cm and 100cm.
2) As shown in the figure, connect the positive wire of photovoltaic array to PV positive of the
controller(terminal 5), and the negative wire to PV negative of the controller(terminal 6).
3) Insert the standard external temperature sensor of the controller into terminal 10 of the controller. The
controller collects the temperature of the battery through the temperature sensor to compensate the
