PWM Mode
Solar Charge Controller Manual
ADD
：
No.99 Yonghe Rd,High-Tech Zone,Hefei,Anhui
Phone
：
0551-65372576
http://www.hfjnge.com
- 12 -
4.4.4
、
Device connection to PC upper computer or APP (WIFI or GPRS mode), please refer to
corresponding upper computer user manual and APP user manual respectively
；
explain
PC upper computer or APP (WIFI or GPRS mode) are optional accessories,
equipment single communication can only take one way, can not use several
communication modes at the same time
！
5.Equipment parameters
5.1 Protection function
5-1 Protection function reference table
：
Protection
function
Explain
Photovoltaic array
short circuit
Short circuit at input end of photovoltaic array, controller does not charge. The
display shows that photovoltaic input voltage is 0V. When short circuit is cleared,
charging will continue automatically
PV module
polarity reversal
When polarity of pv module is reversed, controller will not charge. display screen
shows pv input voltage is 0V, controller will not be damaged. After correcting wiring
error,controller will return to normal operation.
PV Under voltage
protection
When charging voltage of photovoltaic array is lower than rated input voltage range
of controller, PV undervoltage alarm can be checked through upper computer or
APP, charging of battery group can be stopped.
PV Over voltage
protection
When charging voltage of photovoltaic array exceeds rated input voltage range of
controller,red alarm light flashes, PV over-voltage alarm can be detected through
upper computer or APP, controller stops charging battery.
Reverse polarity
of battery
When battery polarity is reversed, controller will not work and will not be damaged.
After correcting wiring error, switch will continue to work normally
Battery
undervoltage
protection
When battery voltage is lower than set undervoltage value, it will automatically stop
load output to prevent the battery from excessive discharge and damage.
Battery overload
protection
When battery voltage is lower than set undervoltage value, display screen displays
Under and ERROR alarm and automatically stops load output to prevent battery
from being damaged due to excessive discharge.
Battery
overvoltage
protection
When battery voltage reaches overvoltage protection set value, it will automatically
stop charging battery to prevent battery from overcharging and damage.
Night protection
Because battery voltage is larger than photovoltaic module voltage at night,
automatic protection prevents battery voltage from discharging through photovoltaic
module;
Equipment
overheating
protection
Controller is equipped with a temperature sensor inside. When temperature is
higher than set value, charging work will be stopped.
High voltage
surge
This controller can only protect high voltage surge with small energy. It is
recommended to install external lightning arrester in area with frequent lightning.