China off Grid MPPT RS485 Interface Controllers

parameter nameWeight and SizeModel no.JN-MPPT-MINIJN-MPPT-ALJN-MPPT-BLJN-MPPT-CLweight(kg)1.25Kg1.5kg2.3kg3.6kgSize L*D*H(mm)156*134*81mm186*146*81mm240*170*97mm340*208*95mm

Protection functioninstructionPV over voltage protectionWhen the PV array charging voltage exceeds the controller's rated input voltage range, charging will stop.Battery polarity reverse connectionWhen the polarity of the battery is reversed, the controller will not work and will not be damaged. After correcting the wiring error, re-open the opportunity to continue normal operation.Battery over discharge protectionWhen the battery voltage is lower than the set undervoltage value, the discharge of the battery will be automatically stopped to prevent the battery from being over-discharged and damaged.Battery overload protectionWhen the controller output current is greater than the set value, the load output will be automatically stopped to prevent the battery from being over-discharged and damaged.Battery over volatge protectionWhen the battery voltage reaches the overvoltage protection setting value, the battery will be automatically stopped to prevent the battery from being overcharged and damaged.Night anti-reverse protectionAt night, since the battery voltage is greater than the voltage of the photovoltaic module, the automatic protection prevents the battery voltage from being discharged through the photovoltaic module;Equipment overheat protectionThe controller has its own temperature sensor. When the temperature is higher than the set value, the charging will stop. When the temperature is lowered, it will automatically start to work.High voltage surgeThis controller can only protect high-voltage surges with low energy. In areas with frequent lightning, it is recommended to install an external lightning arrester.

ERRORIndicator status and alarm iconpossible reasonSolutionArray over voltageRed light, icon flashesMore PV arrays in seriesDisconnect the PV array, reduce the number of PV arrays connected in series, and ensure that the PV array open circuit voltage does not exceed the set value in the "Table 3-1 PV Electrical Parameters" table;Battery over voltage (overcharge)Red light on,OVDandflashes1. The controller overvoltage protection point is lower than the highest charging range;
2. The battery is aging or over-discharged;
3. The battery is over-discharged;
4. Large dynamic changes in load;1. Reset the battery overvoltage protection point through the device button or PC host computer or APP;
2. The battery needs to be replaced after aging;
3. Over-discharge requires manual setting of battery voltage level;
4. Reduce large dynamic changes in load;Battery under voltage (over discharge)Under and
flashesBattery voltage value is lower than the undervoltage protection setting1. Reduce or disconnect the load. If the alarm is released, the battery voltage returns to normal, indicating that the load power is too large or the battery voltage and capacity are low. It is easy to cause undervoltage protection with heavy load;
2. Disconnect the load controller and still alarm, the battery voltage does not return to the over-discharge recovery setting value, and the battery pack needs to be charged by PV or other means, so that the fault can be released after the battery pack voltage reaches the recovery point set value.The indicator light is off and the display is not displayed. Battery voltage is lower than device startup voltageHeat sink overheatingRed light on, flashes1. The ambient temperature is too high, the heat dissipation of the equipment is poor, and the fan is not well ventilated; 2. The fan is damaged.1. Check the installation environment of the equipment, remove the debris of the equipment, and ensure that the fan is ventilated smoothly; 2. The fan needs to be replaced if it is damaged.Charge currentRed light on,Icharge flashesCharging overcurrent protection check for abnormal current detection and malfunctionIf you restart it several times, if you can't solve it, you need to go back to the factory for repair;Over loadingRed light on, flashesLoad power is too large1. Reduce the load power;
2. Restart and release the fault;
3. Without excessive sensibility and capacitive load;Remark: The above fault phenomenon can not be turned on except the battery under voltage, other faults can refer to the fault information through the PC background or mobile APP;

parameter nameParameter value (and adjustable range)MODELJN-MPPT-MINIJN-MPPT-ALJN-MPPT-BLJN-MPPT-CLCurrent rating (A)1020303040503040506070506080100120Maximum charging current (A)1020303040503040506070506080100120PV maximum input power (12V) (W)150250400400500600400500600750850600750100012001450PV maximum input power (24V) (W)30050080080010001200800100012001500170012001500200024002900PV maximum input power (48V) (W)600100016001600200024001600200024003000340024003000400048005500PV maximum input power (96V) (W)--------------------------------Output maximum current A1015151520251520253035----------System identification voltage range v12V battery sysemDC9V-DC16V24V battery systemDC18V-DC32V48V battery systemDC42V-DC60V96V battery system96V is a stand-alone systemPV panel open circuit input voltage range v20V~100V(12V battery system)40V~145V(24V battery system)80V~145V(48V battery system)120V~250V (96V battery system)MPPT efficiency>99.5%Conversion efficiency>98%Operating modeThe default is the household mode 24H

Lead-acid batteriesSystem rated voltagev12V system(1 in series)24Vsystem(2in series)48Vsystem(4in series)96V system(8series)12VdefaultOver voltage (overcharge)(v)13~17V26~34V52~68V104~136V15.5VOver voltage return (v)13~17V26~34V52~68V104~136V15VCharge limit voltage(v)9~15V18~30V36~60V72~120V14.9VBoost charge(v)9~15V18~30V36~60V72~120V14.4VBoost charge return(v)9~15V18~30V36~60V72~120V13.9VFloat voltage (v)9~15V18~30V36~60V72~120V13.8VOver discharge (v)7~13V14~26V28~52V56~104V10.8VOver discharge return(v)9~15V18~30V36~60V72~120V13.1VTernary lithium battery (single section 3.7V)System rated voltagev12Vsystem(default 3 in series)24V system(default 6 in series)48Vsystem(default 12 in series)96Vsystem (d efault24seires)3in series default valueOver voltage (v)10.5~15V21~30V42~60V84~120V13.5VOver voltage return (v)10.5~15V21~30V42~60V84~120V12.6VCharge limit voltage(v)10.5~15V21~30V42~60V84~120V12.6VBoost charge(v)10.5~15V21~30V42~60V84~120V12.3VBoost charge return(v)10.5~15V21~30V42~60V84~120V12VFloat voltage (v)10.5~15V21~30V42~60V84~120V12.3VOver discharge (v)6~12V12~24V24~48V48~96V9.3VOver discharge return (v)6~13.5V12~27V24~54V48~108V10.5V Lithium LIFEPO4(single section 3.2V)System rated voltage12Vsystem(default 3 in series)24V system(default 6 in series)48Vsystem(default 12 in series)96Vsystemdefault24seires)3in series default valueOver voltage (v)9~12V18~24V36~48V72~96V11.7VOver voltage return(v)9~12V18~24V36~48V72~96V11.1VCharge limit voltage(v)9~12V18~24V36~48V72~96V11.1VBoost charge limit (v)9~12V18~24V36~48V72~96V10.8VBoost charge return(v)9~12V18~24V36~48V72~96V10.2VFloat voltage(v)9~12V18~24V36~48V72~96V10.8VOver discharge (v)6~9V12~18V24~36V48~72V8.4VOver discharge return(v)6~12V12~24V24~48V48~96V9.6VStorage temperature(ºC)-40ºC~80ºC Humidity(ºC)10% ~ 90% no condensation