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30A 48V PWM Solar System Charge Controller
Function
1. LED digital display and one-key operation, easy to use
2. The improved 3-section computing method can weekly give the battery a Balanced charging. It can stop the battery from being unbalancing and vulcanizing and let the battery been used for more time.
3. the controller is equipped with the serial PWM charging main circuit with additional 3%~6% efficiency than the non-PWM circuit which can work for more time and increase the using period of the system.
4. Controller has three load work ways and can be easily used in varies streetlights and monitors.
5, Visualized LED display which can let the users get to know the conditions of solar power and storage battery.
6. Overcharge, over discharge and overload protection; Electronic short circuit protection; Reverse connect preventing protection.
7. Lightning prevention
Controller panel figure
Wiring figure
Installation and usage
1,Installation should be fixed and the sizes are as follows:
2,Outline size and Installation size:
3,Wire preparation: make sure the wire lengthen firstly. Reduce the length of the wire as much as possible after the assurance of the installation allocation in order to decrease the electrical loss.
4,Connect the battery firstly, pay attention to the pole and do not connect inversely. The indicator light of the controller will make no indication if the batteries are connected wrongly and the internal components of the controller will not be damaged. If connected rightly, BATTERY indicator light should indicate.
5,Connect the wires of solar-cell panel secondly, pay attention to the pole and do not connect inversely. CHARGE indicator light will light or flash due to charging after 10s if the sunshine exists. If not, check the connection. Notice: solar-cell panel should be located outside and in faced with sunshine.
6,Connect the load line lastly; connect the LED illuminant or DC load line to the output electrical pole of controller. Pay attention to the pole and do not connect inversely in case of breaking the equipment.
Indication instruction of LED light
LED | Status | Function |
Charge | off | At night or battery is failed to connect |
light normally | Balanced charge | |
slow flash | Float charge | |
double flash | Daytime (no charge) | |
BATTERY | Red lamp in double flash | (<11.0V); ×2/24V Under voltage (<11.0V); ×2/24V |
Green lamp in double flash | (11V~12.0V) ; ×2/24V Under voltage warning (11V~12.0V) ; ×2/24V | |
Green lamp in slow flash | (12.0V~13.0V) ; ×2/24V Normal voltage (12.0V~13.0V) ; ×2/24V | |
Green lamp lights normally | (>13.0V) ; ×2/24Vbattery voltage (>13.0V) ; ×2/24V | |
PRORECTION | Red lamp in slow flash | Load line in under voltage or high voltage protection |
Red lamp in double flash | Load line short circuit protection | |
Red lamp lights for long time | Load line over load protection | |
Dot light loop | The voltage of electric automatic identifying battery in the controller in medium |
Technology qualification
System voltage | 12V/24V Auto |
System current | 15A/20A |
No-load loss | <10mA |
Solar energy input voltage | <55V |
Over voltage protection | 16.5V; ×2/24V |
Over voltage recovery | 15.0V; ×2/24V |
Balance charge voltage | 14.6V; ×2/24V(25°C) time maintenance 1H |
Increase charge voltage | 14.4V; ×2/24V(25°C) time maintenance 1H |
Float charge voltage | 13.8V; ×2/24V(25°C) |
Charging return voltage | 13.3V; ×2/24V(25°C) |
Discharge protection voltage | 11.1V; ×2/24V |
Discharge protection voltage | 12.8V; ×2/24V |
Temperature compensation | -4.0mv/°C/2V |
Daytime identifying voltage | 7.0V; ×2/24V |
Night identifying voltage | 3.0V ×2/24V |
Over-load, short-circuit protection | 1.5 times rating current 30S 1.5 times rating current 10S overload current protection ≥3 times rating current short circuit protection |
Work temperature | -25°C to +60°C |
Protection degree | IP30 |
Outline size | 141.5mm*84mm *23.6 mm |
weight | 0.35kg |
General safety and usage advice
Advice for safety
1. The battery saves large amount of energy, do not let it in short circuit in any case. We suggest to connecting the battery wire with fuse. (Slow motion type, in accordance with rating of the controller.).
2. Battery can produce combustible gas. Keep it away from the spark, fire or the flame which is without protection. Make the battery storage ventilated.
3. Do not touch or short-circuit the wire or terminal for some wires or terminals can produce the rating voltage which is two times of the battery. Insulation tools should be used when in operation.
4. Make sure to keep the children away from the battery and controller.
5. Please observe the manufacture's safety advice.
Range of use
Controller is only applicable to the system which is solar energy with 12V/24V rating voltage. Battery is in plumbic acid with liquid openings or be sealed (by VRLA valve) and can also be ferrous phosphoric acid lithium. Note the type before you buy it.
30A 48V PWM Solar System Charge Controller with LED display