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JNGE Power JN-MPPT User Manual

Solar charge controller
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JN-MPPT Solar Charge Controller User Manual
Ⅰ. Product Characteristics
1. Product overview
Thank you for choosing JN-MPPT buck type solar sontroller.
This series of products are based on polyphase synchronous rectifier technology and sharing-one-
cathode design. Adopting the advanced dual core processor architecture and MPPT control algorithm,
it has features such as high response speed, high reliability and high standard of industrialization etc.
With the MPPT control algorithm, can quickly track the maximum power point of pv array and get
real-time access to the biggest energy of solar panels in any environment. With polyphase
synchronous rectifier technology, JN-MPPT series are guaranteed to keep a high conversion
efficiency in any charging power environment. Compared with most of the BUCK products, JN-
MPPT series raise the utilization ratio of the solar system largely. Besides, with standard RS485
communication interface, can easily realize multiple devices in parallel, to the greatest extent, to
meet the demand of different monitoring function. It can be widely used in communication station,
household system, street lamp system and field monitoring system etc.
With comprehensive electronic fault self-test function and powerful electronic protection function,
can avoid system components damage in the greatest degree due to installation errors.
2. Product features
• Advanced MPPT maximum power point tracking technology, and tracing efficiency not less than
99.5%. Compared to common PWM algorithm, it achieves 15% -20% more efficiency.
• Using high quality imported components and advanced power conversion circuit, the maximum
conversion efficiency can reach more than 98%; full-load efficiency can reach 97%.
• Aluminum metal for structure, can be used in all kinds of harsh conditions.
• R&D with the latest technology, can realize the multiple devices in parallel through the RS485
communication interface.
• With Polyphase synchronous rectifier technology, can achieve high conversion efficiency even in
low power charging environment.
• Combination of various tracking algorithm, can track the maximum power point quickly.
• Dual wave and multiple wave tracking technology, when the panels are in partial shade or when a
single panel is damaged, can still track the maximum power point accurately.

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Summary of Contents for JNGE Power JN-MPPT

  • Page 1 With polyphase synchronous rectifier technology, JN-MPPT series are guaranteed to keep a high conversion efficiency in any charging power environment. Compared with most of the BUCK products, JN- MPPT series raise the utilization ratio of the solar system largely.
  • Page 2 • Four sections of charging ways: MPPT charge- equalizing charge- improving charge- floating charge. • 12/24/48V automatic identification function. • Support for data storage, storage time can be up to 10 years. • With current-limiting charging mode, when the input power of the photovoltaic panels is too large, the charging current exceeds the rated current of the controller.
  • Page 3 utilization rate of the energy by 15% ~ 20% (due to the influence of the environment and all kinds of energy losses, concrete numerical value is likely to change). Picture 1 MPPT maximum power point tracking curve Due to different light conditions and temperature, the power of photovoltaic panels will have corresponding change.
  • Page 4 controller judges that the battery is full and goes straight to the floating charge. If the battery voltage is lower than the “ascension back charge voltage”, the charging process should be MPPT, (equalizing charge), improving charge and floating charge. And a improving charge happens during every charge.

  • Page 5: Equalizing Charge

    ensure the battery to maintain in full-energy state. In this stage, load can get nearly all of the solar power. But if the load exceeds the electricity that solar energy system can provide, the controller will not be able to keep the battery voltage matched with the floating charge voltage. When the battery voltage reduces to “improving back charge voltage”, the controller system will exit the floating charge stage and back to the quick charge stage (MPPT charge).
  • Page 6 Picture4 Surface layout diagram B. Led Light function There are 3 LED lamps in sequence on the display panel, respectively fault alarm lamp (red), the charging indicator lamp (yellow) and the load indicator lamp (green). Function definition shows in the table below. LED Lamp Condition Definition...
  • Page 7 Dual flashing Equalizing charge Constantly on Output smoothly light controll and time control normally closed load Alarm at indicator flashing Battery over discharge, the same lamp slowly load off time (green) Alarm at flashing Battery over charge, the same quickly load off time C.
  • Page 8 Picture 5 Display layout diagram When the system is powered on, the controller enters into standby mode, the battery icon and the load icon light up, and related data occur in certain area (corresponding to the monitoring fields, battery voltage is displayed as default setting when open). When load works, load icon lights up, at the same time, the arrow between the battery and the load starts running.
  • Page 9 discharge can be set. recover Field lights up, battery over charge voltage can be set. Over charge when the battery is over charge, the field flashes. Over charge Field lights up, battery over charge recovery voltage OVD-R recover can be set. Floating Field lights up, battery floating charge voltage can be Float...
  • Page 10 There are four buttons on the controller. Buttons definition are, respectively, set (SET), down (DOWN), up (UP), exit (ESC). Functions are as follows: In standby mode, when press the DOWN button, the data of battery voltage (V battery), photovoltaic panels voltage (V PV), the charging current (I charge) and discharging current (I Load) will switch at the corresponding time in the display area;...

  • Page 11: Alarm Reset

    Press SET button again, Time1 icon lights up. You can set the length of the second Time control (that is, the light closing-time) by the UP and DOWN buttons. Press SET button again to save the data. Press SET button again, Time2 icon lights up. You can adjust the length of the third Time control ( that is, the second light working-time) by the UP and DOWN buttons.
  • Page 12 rings intermittently, load is shut the buzze. When Press the ESC button for 3 seconds, the load will resume normal work. 4. Protection Controller is equipped with battery reverse connection protection, photovoltaic panels reverse connection protection, controller over temperature protection, battery over temperature protection, over current protection, and photovoltaic panels over voltage protection etc..

  • Page 13: Installation Instructions

    human body. During operation, please use insulating tools and make sure that your hands are dry. J. There are a lot of energy in storage battery. In any case please avoid of the battery short circuit. It is suggested that the fuse or breaker should be series connected to the battery. K.
  • Page 14 A. Installation notes • Before installation, please read the installation section to be familiar with the installation steps. • In the vicinity of the battery avoid placing metal objects in case of battery short circuit. • During charging battery may produce acid gas, please ensure good ventilation environment. •...
  • Page 15 Picture 8 Diagram of controller terminal • Remove two terminal-cover screws on the side of the controller and then remove the cover (show as the picture 7) • Connect the battery positive and negative electrode cable, load cable and photovoltaic board cable in turn (show as the picture 8).
  • Page 16 • All the wires should not be twisted together. The power line should be equipped with the related wiring terminals. Communication line should be far away from the power line in order to prevent interference of communication signal transmission. • When the device needs to be moved, please make sure that all the connections are tight. The virtual connection may lead to heat accumulation or even a serious fire.
  • Page 17 Notes: the number of controllers can be 1~n (n≦99) Picture 10 Wiring diagram of controllers in parallel operation Ⅳ. Product parameters 1. System parameters table Notes: The following parameters are based on the 12V, n represents the integer multiple of the 12V (2, 4) Parameters Default The parameter values (and adjustable range)
  • Page 18 Conversion ﹥96% efficiency Over voltage 16～17V，×nV 16V,×nV (over charge) Over voltage 15～15.5V, ×nV 15V,×nV recovery Charging limit 15.5～16V, ×nV 15.5V,×nV voltage Equalizing charge 15～15.5V, ×nV 15.2V,×nV voltage Boost charge 14～15V, ×nV 14.4V,×nV voltage Boost charge 12.3～13.5V，×nV 13.2V,×nV recovery Floating charge 13.2～14.0，×nV 13.8V,×nV voltage...
  • Page 19 When the temperature reaches 75 ℃ charging current is Over temperature limited to half of the rated current, When the temperature protection reaches 90 ℃ charging and load are shut off Working -20℃～50℃ temperature Storage -40℃～80℃ temperature 10% ～ 90% Non-condensate Humidity Weight Size...
  • Page 20 Picture 12 24V System conversion efficiency curve C. 48V System conversion efficiency (Battery voltage is 48V) Picture 13 48V System conversion efficiency curve Ⅴ. Installation dimensions - 19 -...

  • Page 21: Ⅵ. Packing List

    Picture 14 Diagram of installation dimensions Ⅵ. Packing list - 20 -...
  • Page 22 Items Quantity Notes JN-MPPT controller User manual Connection terminal Temperature probe Host computer CD Optional USB to RS232 cable Optional RS232 to RS485 module Optional Lotus terminal (5.08-2) - 21 -...