• LCD Solar Controller - Instruction Manual in English

    Please check out whether the product model is the same as the one on the packaging when open the pack.

    Containing :

    • a set of host machine
    • a copy of manual
    • a pack of desiccant

     

    I. MODEL AND SPECIFICATIONS

    Model : SY-SLCD

    Input voltage : DC 12V/24V, DC 36V, DC 48V, DC 96V

    Output voltage : DC 12V/24V, DC 36V, DC 48V, DC 96V,

    2USB Output voltage : DC 5V/1.5A

    Operating temperature -25C to 55C

     

    II. DESCRIPTION OF PRODUCTION FUNCTIONS

    The product is multi-functional LCD solar controller with clock display and seven operating modes that are charging mode, light control mode, light and time delay control mode, universal control mode, manual control mode, timing control mode and testing mode. Among them, testing mode is only applicable to the factory test.

    Charging control is applicable to any mode, as long as the charging condition is reached, it can charge immediately.

    Discharge control varies as different control modes change, under the trouble-free condition, specific instructions as follows :

    1. charging mode : in any case, never discharge,

    2. light control mode : when the controller detects nights, it will delay ten minutes then start to discharge; when it detects daytime, it will delay ten minutes then stop discharging.

    3. light and time delay control mode : when the controller detects nights, it will delay ten minutes then start to discharge and count down, if the timer stops at zero, discharge will stop. The longest durection of delay is 23:59.

    4. Universal control mode : under the trouble-free condition, it always keep discharging.

    5. Manual control mode : it uses  for discharging or not.

    6. TIming control mode : it opens or closes the discharge regularly.

    7. Test mode : it is the same as light and time delay control mode but only loses ten minutes of time delay.

    8. The controller still discharges under low voltage protection. Touch-holding the  for 5 seconds, discharge continues to output. But discharge is only stopped by hand. Notice that this performance may damage the battery, be careful with it.

     

    III. DISPLAY AND OPERATION INSTRUCTIONS

    1. Display Screen

    (1) Full Screen

    (2) Battery Work Status Dispay Area Instructions

    Battery charging state and voltage indication. When the battery is charging, 4 rails will display dynamically if the four rails are in static state, it is showing the current battery level.

    The display of batter voltage and discharge current toggles at intervals of 5 seconds.

    (3) The Operating Status Area of Solar Panel

    When the solar panel displays, it means charging status, when it doesn't display it means stopping charging.

    It displays charge current.

    (4) Load Output Status and the Parameters Displaying Area

    When the battery discharges, the load icon light is on; when not discharge, the light is off

    When °C is displayed, 4 numerical values displayed is controller's temperature;

    when % is displayed, 4 numerical values displayed is electric quantity of the battery;

    when 'Time' is displayed, four numerical values displayed is timing start time of timing control mode;

    when 'Time OFF' is displayed, 4 numerical values is the timing stop time of timing control modeor light and time delay control mode. 

    (5) Mode Controlling Display Area

    'Operate Mode Select' keeps on : it means that the area is the alternative area of controlling mode.

    'Charging' keeps on, it means that the controller is in charging mode.

    'Light Control' keeps on, i tmeans that the controller s in light control mode.

    'Light Control amd Delay' keeps on, it means that the controller is in light start and time delay stop control mode.

    'Universal Control' keeps on, it means that the controller is in universal control mode.

    'Manual' keeps on, it means that the controller is in manual control mode.

    'Timing' keeps on, it means that the controller is in manual control mode.

    'Test' keeps on, it means that the controller is in test mode.

    (6) Normal and Fault Display Area

    'OK' keeps on, it means that the controller is in normal state.

    'Fault' flickers, it means that the controller detects the abnormalities of battery's voltage, discharge current or controller's temperature. When the battery's voltage is abnormal, 'Fault' flickers, in the meantime, the value of voltage also flickers. When the discharge current is too large, 'Fault' flickers, meanwhile, abnormal current value also flickers. When the controller's temperature exceeds 75°C, 'Fault' flickers and the value of temperature also flickers.

    2. Operating Instructions

    (1)  Numerical Values and Mode Adjustment. 

          Setting/Confirmation,

          Displacement and Impulse Start/Stop

    (2) Time Setting : when charged, it immediately enter time setting state, local output and the first one (the first one to the left) of the four values in the parameters display area flicker, it means that this place is changeable. Press  to adjust, press  for displacement adjustment. If time needs adjusting again, then long press  for 5 seconds to enter time setting state

    (3) Mode Adjustments : Press , the current control mode can flickers, then press  to get the needed control mode, then press  again to confirm.

    (4) Display stop time adjustment of light control + display stop control mode : When 'Light' Control and Delay' is chosen and confirmed, it will automatically pop up the delay stop time parameters, the operational approach is the same as time setting operaations, load output and the display area of all parameters will show 'Time OFF', after adjusting, then press   to get back to the display mode. If delay stop time parameters needs modifying again, directly press 2 times of  to enter delay stop time parameters adjustment.

    (5) The Adjustment of Start Time and Stop Time of Timing Control Mode

    When 'Timing' control mode is chosen and confirmed, it iwll automatically pop out time parameters start, the operational approach and time setting are the same, load output and the display area of all parameters will show 'TIme ON'. After adjusting start time and press , it will automatically enter stop time parameters adjustment, load output and the display area of all parameters will show 'Time OFF', after finishing adjustment, press  to get back to display mode.

    IV. PROTECTION PARAMETERS

    1. Voltage Protection Instructions

    12V Battery : When using 12V battery, if the battery's voltage is below 10.5V, it will delay 6 seconds under low voltage protection, the value of voltage flickers, 'Fault' flickers, discharge stops.

    When voltage gets back to 11.5V, it gets back to normal.

    When voltage is above 16.0V, the value of voltage flickers, 'Fault' flickers, discharge stops.

    When voltage recovers back to 15.0V, it returns to normal.

    24V Battery : When using 24V battery, if the battery's voltage is below 21.0V, it will delay 6 seconds under low voltage protection, the value of voltage flickers, 'Fault' flickers, discharge stops.

    When voltage gets back to 23V, it gets back to normal.

    When voltage is above 32.0V, the value of voltage flickers, 'Fault' flickers, discharge stops.

    When voltage recovers back to 30.0V, it returns to normal.

    36V Battery : When using 36V battery, if the battery's voltage is below 31.5V, it will delay 6 seconds under low voltage protection, the value of voltage flickers, 'Fault' flickers, discharge stops.

    When voltage gets back to 34.5V, it gets back to normal.

    When voltage is above 48.0V, the value of voltage flickers, 'Fault' flickers, discharge stops.

    When voltage recovers back to 45.0V, it returns to normal.

    48V Battery : When using 48V battery, if the battery's voltage is below 42V, it will delay 6 seconds under low voltage protection, the value of voltage flickers, 'Fault' flickers, discharge stops.

    When voltage gets back to 46V, it gets back to normal.

    When voltage is above 64.0V, the value of voltage flickers, 'Fault' flickers, discharge stops.

    When voltage recovers back to 60.0V, it returns to normal.

    2. Discharge Current Protection Instructions

    When discharge current is above 150% of rated current, it starts protection immediately, the value of protection current flickers, 'Fault' flickers, discharge stops.

    When discharge current is around 110%-150% of rated current, it will delay 10 seconds for protection, the value of protection current flickers, 'Fault' flickers, discharge stops.

    When discharge current is around 100% of rated current, it will delay 10 seconds for protection, the value of protection current flickers, 'Fault' flickers, discharge stops.

    3. Charging Protection Instructions

    When using 12V battery, if battery's voltage is below 13.0V, it will start to charge, if the voltage is above 14.8V, it will stop charging.

    When using 24V battery, if battery's voltage is below 26.0V, it will start to charge, if the voltage is above 29.6V, it will stop charging.

    When using 36V battery, if battery's voltage is below 39.0V, it will start to charge, if the voltage is above 44.8V, it will stop charging.

    When using 48V battery, if battery's voltage is below 52.0V, it will start to charge, if the voltage is above 59.2V, it will stop charging.

    ATTENTION

    1. Do not set the product on fire in case of the permanent damage of the product.

    2. Do not use this product in high temperature and wet environment.

    3. Do not dismantle this product in case of damage.

    4. Do not make the output a short circuit in case of danger.


  • Re-Writing The Rules Of Lithium-Ion Batteries

    Ultrafast spectroscopy has revealed that components of the electrolyte play a much more important role in battery performance than previously thought.

    Read more from Asian Scientist Magazine at: https://www.asianscientist.com/2017/04/tech/lithium-battery-electrolyte-solvation-shell/

    AsianScientist (Apr. 5, 2017) – Using ultrafast spectroscopic methods, researchers from the Center for Molecular Spectroscopy and Dynamics at the Institute for Basic Science (IBS) have challenged the existing theory on ion diffusion in the widely used lithium rechargeable batteries.

    Published in Nature Communications, this study reveals the interactions between lithium ions and electrolytes, organic molecules that surround the lithium ions and conduct electricity.

    Although most of our electronic devices like mobile phones, laptops and electric vehicles use lithium rechargeable batteries, what is going on inside them is not actually fully understood. In a typical commercial lithium rechargeable battery, lithium ions dissolved in electrolytes move from the positive to the negative pole of the battery when the battery is charging, migrating in the opposite direction when the battery is in use. The lithium ion mobility determines the performance of the lithium rechargeable battery, and determines how rapidly they can charge and discharge.

    Lithium ions, however, do not migrate alone: they are surrounded by electrolytes that facilitate the journey from one pole to the other. Currently, the electrolytes in our lithium rechargeable batteries are typically composed of a mixture of ethylene carbonate (EC), dimethyl carbonate (DMC), and diethyl carbonate (DEC) in equal concentration.

    It is believed that lithium ions associate mainly with EC, forming the so-called ‘solvation shell’ or ‘solvation sheath,’ while DMC and DEC just enhancing the movement of these shells between the batteries’ poles, like lubricants. However, while most of the previous studies focused on the static properties of the bond between electrolytes and lithium ions, this study clarifies the dynamics of the bonding.

    Like in a motion picture, where a series of still images displayed rapidly one after the other create the effect of movements, IBS scientists took successive shots to analyze the formation and breaking of these bonds. However, while movies are typically filmed and displayed at 24 still images per seconds, these measurement ‘shots’ were taken at time intervals of just femtoseconds or 1/1,000,000,000,000,000 of a second.

    Thanks to a tool called two-dimensional infrared spectroscopy, the team measured how lithium ions bind to the oxygen atoms of DEC and found that these bonds break and form in a matter of 2-17 picoseconds. The timescale is similar for DMC. This means that DMC and DEC are more than just lubricants, they are also part of the solvation shell together with EC and may play an active role in transporting lithium ions to the battery’s pole.

    “It was believed that EC makes a rigid shell around lithium ions during the migration between electrodes. However, this study shows that the solvent shell is not that rigid, it is constantly restructured during the ion transport,” explained Professor Cho Minhaeng. “For this reason, revising the existing lithium ion diffusion theory is inevitable.”

    The research team is working on a follow-up study to establish a new theory of the lithium ion diffusion process and it is building a new ultra-high-speed laser spectroscopy instrument that can observe the chemical reaction as well as film it on top of the rechargeable batteries’ electrodes.

    The article can be found at: Lee et al. (2017) Ultrafast Fluxional Exchange Dynamics in Electrolyte Solvation Sheath of Lithium Ion Battery. ——— Source: Institute for Basic Science.

    Disclaimer:

    This article does not necessarily reflect the views of AsianScientist or its staff.

     

    Read more from Asian Scientist Magazine at: https://www.asianscientist.com/2017/04/tech/lithium-battery-electrolyte-solvation-shell/



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