ESG CE ROHS 20A Solar Charge Controller 12V 24V PWM Charge Controller
1. Product overview
The controller is suitable for the automatic control of charging and discharging process
in the off-grid solar system (independent system). The battery charging and discharging
process of the controller is optimized, which can prolong the life of the battery and
improve the performance of the system. The comprehensive function of self testing and
electronic protection function can avoid the installation errors and system failures which
can cause the controller damage.
2. Installation size and connection:
Use CPU processor superior speed performance
l The high precision A/D sampling to ensure the accuracy of sampling
l The excellent EMC design
l The intelligent temperature drop current
l The 12V/24V automatic identification system voltage or 48V battery voltage
l The efficient tandem PWM charging mode, extend battery life, improves the system
performance.
l The imported MOSFET as power switch, low loss, high reliability
l It has wide applicability, automatic recognition of day / night
l The LCD display and keypad interface, complete menu display and operation
l The humanized design of browsing interface, easy operation
l The complete set and modify control parameters
l The load control mode and intelligent memory function of diversity, enhance the
flexibility of the output load
l Use of temperature compensation charging control algorithm, automatic adjustment
of the parameters of charge and discharge system, improve the service life of the
battery
l The light controller battery input filter, invoice of the battery voltage spike light
damage to the equipment
l Use of RS-232 communication, the communication speed and communication
protocol compatibility are very well
l Standard RJ45 interface equipment that can be used for connecting the liquid crystal
display unit or PC monitor software and communication peripherals, it is convenient
for the user view the controller’s running data, modify the controller control
parameters
l The controller with over temperature, over discharge, overload, short circuit
protection function
l The photovoltaic array and reverse battery protection function
l The 5V DC output, can supply power for the mobile phone or digital products
3.Feature description
A. temperature sensor: the collection of the machine temperature, to prevent the
machine over temperature, over temperature protection and reduce current.
B. liquid crystal display: monitoring interface of system parameters.
C. combination keys: 2 or 4 combination keys to complete the control of all the operation
of the controller.
D.RS232 communication interface: connect remote PC monitoring software.
E. load terminal: connect load output.
F. battery terminal: connect battery.
G. photovoltaic array terminal: connecting photovoltaic array input.
H. external temperature sensor: collection of battery temperature and battery charging
temperature compensation.
4. Protection function
Short circuit of photovoltaic array
PV array input side short circuit, when the short circuit status cleared, the charge will
automatically continue.
Load overload
If the load current is more than 1.2 times of the current of the controller, the controller will
disconnect the load. When an overload occurs, the controller will reduce the load to
auto-recovery
Load short circuit
When the load short-circuit (more than 2 times the rated load current), the controller will
automatic protection, automatic recovery after the termination of short circuit.
Solar panel of reverse connection
Solar panel reverse,the controller will not be damaged, will continue to work normally
after the wiring error correction.
Battery polarity reverse protection
Battery polarity reverse , the controller will not be damaged,it just burn the fuse, replace
the fuse, will continue to work after the wiring error correction.
Internal temperature sensor damage or fault protection
Internal temperature sensor short circuit or damage, the controller will be charged or
discharged when the temperature is 25 degrees, in order to prevent over charging or over
l Overheat protection
Automatic protection is carried out by detecting whether the temperature of the heat sink
is more than 90. When the temperature of the heat sink exceeds 75 degree, the controller
automatically reduces the current by half, and the controller automatically restores the
normal charging and discharging operation when the temperature is reduced to 75.
l High voltage surge protection
The controller can only protect the high voltage surge of small energy, and in the frequent
lightning area, it is recommended to install the external lightning arrester.
5.LCD display parameters:
V float: battery float voltage setting
V Bcv: battery enhance charging set
V ecv: battery equilibrium charging set
I charge: charging current
V battery: battery voltage
L-CON-V: control voltage setting
I loat: load current
VPV: PV panel voltage
ERROR: fault tips
V under: battery under voltage setting
V under-R: battery under pressure recovery settings
V Ovd: battery overvoltage setting
V ovd-r: battery overvoltage recovery settings
Time: time control of the first time period, when the Time=24h, is home model.
Time1: time control of second time period. time of off light setting.
Time2:time control of third time period. time of turn on light setting.
Figure 3. LCD display and parameter description diagram
6. Technical parameters:
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7.Product Show
8.Overall appearance size chart
K 12V/24V/48V 10A-30A Solar Controller with LCD and led display
9. Production Line
10.About us
11. Certificate
12.Related Products
ESG-K 12V/24V/48V 10A-30A Solar Controller with LCD and led display
