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1)
As figure, first connected the battery to controller correct poles. In order to avoid
short circuit, please screw the cable of battery to the controller in advance, then
connected to battery poles secondly. If your connection is correct, the LCD
displaying will show battery voltage and other technical data. If LCD no displaying,
please check the fault. The length of cable between battery and controller as
shorter as possible. Suggest to 30CM -100CM.
If short circuit happened on the terminals of controller, it will be result in fire or
explode. Please be careful. (We strongly suggest to connecting a fuse at the
battery side 1.5time of rated current of controller.)
2)
As figure, connected solar panels with controller correctly, if the connection is
successful and sunshine is full, the LCD will show solar panel and an arrow from solar
panel to battery will be light, we have below suggestions about solar panels
connection.
Risk of electric shock, please pay attention to protection
The max input voltage from solar panel could reach 100v, please try to use
series connection in order to simplified cables.
In series connection could get down the current of solar panel, reduce
sectional area of cable and voltage drop.
For example: 17V 120Wx2 solar panels charge 12V battery, if we use PWM
controller, we have to in parallel connection, the solar panel array voltage is
17V, current is 14A, current density is 3A/mm
2
sectional area 5 mm
. If we in series connection solar panels array
voltage is 34V, current is 7A, At this time we need sectional area of
2
cable 2.5 mm
, half conductor area reduced than parallel connection.
3)
As figure, connected loads with controller correctly. In order to avoiding injury from
load voltage, please close to the output of controller with button at first, then
connected the load on the controller. The controller do not offer reverse
connection protection for load, so please take care, reverse connection for output
will be destroy loads.
Attention: If users want to connect inverter or inrush starting current
loads, please connected them with battery directly, do not connected
them with controller, or the controller load can not be start or
destroy.
2
. So we need
4) Insert type external temperature sensor: external temperature sensor used for
temperature compensation, please closed to battery as nearer as possible, if the
temperature sensor do not plug in, the controller will default 25℃.
5) RS485 communication interface: Monitored by professional wire and host computer.
(optional）
6) USB output： USB could offer 5V， Max 1000mA for mobile, laptop, MP3 and so on. (40A
not available USB output at the moment）
Warning: Please do not connect USB loads to anywhere, the USB output negative
poles is in series with Load negative poles.
About ground connection of solar system
Please noted, this solar charge controller designed by all positive
connection, all components inside the controller are positive combined
together. If your solar system needs ground connection, please let
positive ground connection.
Warning: For some force to ground connected system, such as solar communication
system, portable solar system, they are negative ground connected, at this time
please do not positive connected, or can cause short circuit.
Battery Charging Process
This controller has 3stages charging mode, bulk, boost, float, through fast high efficiency
safety charging mode, effectively prolong the service life of the battery.
Bulk charging ： Fast charging stage, the voltage of battery is not reach to full
1
charged set point. (Float point or Boost point), the controller will be work at MPPT
mode. In process of Maximum Power of solar panel charging.
Boost charging：Each time the battery voltage less than 12.6V, the controller will
2
auto boost charging one time. When the boost voltage reach to set point, the
controller will join into constant voltage charging mode instead of MPPT mode,
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