BYGD Solar Charger Controller User Manual

June 6, 2024
BYGD

BYGD-Solar-Charger-Controller-LOGO

BYGD Solar Charger Controller

Dear customer,
Thank you for purchasing our product. Please read the following instructions carefully before first use and keep this user manual for future reference. Pay particular attention to the safety instructions. If you have any questions or comments about the device, please contact the customer line.

www.alza.co.uk/kontakt

Importer |
+44 (0)203 514 4411
Alza.cz a.s., Jankovcova 1522/53, Holešovice, 170 00 Praha 7, www.alza.cz

Important Safety Warning

  •  Make sure not to cause any short circuit when connecting the solar controller.
  •  Children should not be aware of the dangers of electrical equipment. Please place the charger in a place where children cannot reach.
  •  Do not touch the exposed conductor on the DC side without protective measures.
  •  Ensure good ventilation, put the charger in a dry place, do not put the charger in a corrosive, salty, flammable and explosive gas, high temperature, rain and damp environment.
  •  Please do not attempt to disassemble or modify any part not described in this manual. Disassembling or modifying this product may cause serious accidents. Internal inspection, modification or repair should be handled by the distributor of this product or the qualified service personnel designated by the manufacturer.
  •  Solar panel open circuit voltage is too high (especially 24V and 48V systems), please be careful.
  •  The battery power is high, and any conductor is prohibited to short-circuit between the positive and negative electrodes of the battery. It is recommended to add a fuse between the battery and the controller. (Slow motion type, the operating current of the fuse should be 1.5 times the rated current of the controller.)

The main function

  •  Automatic identification of system voltage, 12V/24V/48V automatic identification.
  •  Humanized LCD screen display, man-machine interface two-key operation.
  •  Technical parameters modified according to battery customization.
  •  High-efficiency and intelligent PWM three-stage charging mode.
  •  The load control mode can be selected, and the timer function of the night street light can be reset.
  •  Work storage function: record the total running time of the system, record the running error timer, and record the number of times the battery is fully charged. And can query the charge and discharge capacity.
  •  Reliable overvoltage protection, short circuit protection, overload protection, overcharge protection, over-discharge protection, and reverse connection protection.
  •  Precise temperature compensation, automatic correction of charge and discharge voltage improve battery life.
  •  Solar panels, batteries, and solar charge controller anodes are all connected together, and a negative MOSFET series control circuit is adopted.

Recommendations

  •  The controller can adjust the charging voltage by detecting the ambient temperature so that the controller is as close to the battery as possible.

  •  It is recommended that the system current density of the cable is less than
    3A/mm2.

  •  Use multiple strands of copper wire as much as possible to connect firmly to the terminal. Loose power connections and/or wire corrosion may cause resistance connections, melt wire insulation, burn surrounding materials, and even cause a fire.

  •  The battery should be fully charged every month. Otherwise, the battery will be destroyed.

LCD Features of graphic symbols

BYGD-Solar-Charger-Controller-FIG-1

  1.  The default night display of the controller: When the controller detects that the input voltage of the solar panel is less than the voltage of the sensor identification point, this graphic symbol is on.
  2.  The default daytime display of the controller: When the controller detects that the input voltage of the solar panel exceeds the voltage of the sensor identification point, this graphic symbol is on.
  3.  Photovoltaic array parameter indication: This graphic symbol is displayed when the solar panel data is displayed. For example, the voltage of solar panels.
  4.  Battery parameter indication: When the battery parameter is displayed, this graphic symbol is displayed. For example, battery voltage, and battery temperature.
  5.  Load parameter indication: When the load parameter is displayed, this graphic symbol is displayed.
  6.  System voltage: When the LCD displays different system voltages, the controller will automatically adjust the technical parameters.
  7.  Numerical display area.
  8.  Timer setting function.
  9.  Load and switch graphic symbols.
  10.  Unit symbol value.
  11.  Warning: When a fault occurs, this graphic symbol will flash.
  12.  Load status indicator: load is on, load is off.
  13.  Output power indication: When there is output at the load end, this graphic symbol flashes.
  14.  Battery capacity indicator: When the battery is in different capacities, the corresponding capacity will be displayed in a bar.
  15.  Charging status indication: When the controller is charging, the indicating arrow is on, the floating charge is flashing, and it is not displayed when it is not charging.

Installation Notes

Controller fixed

  1.  The controller should be installed in a well-ventilated place, avoid direct sunlight, high temperature, and do not install where water can enter the controller.
  2.  Please select the correct screws to fix the controller on the wall or other platforms. Screw M4, the diameter of the screw cover is less than 10mm.
  3.  Please reserve enough space between the wall and the controller for cooling and cable connection.

BYGD-Solar-Charger-Controller-FIG-3

Controller connection

  1.  All terminals are in a fastened state after leaving the factory, in order to connect well, please loosen all terminals first.
  2.  Please do not change the following wiring sequence at will, otherwise, it will cause system voltage identification failure.
  3.  As shown in the figure, first connect the battery to the correct pole of the controller. To avoid short circuit, please screw the battery cable to the controller in advance, and then connect the battery pole. If your connection is correct, the LCD will display battery voltage and other technical data. If the LCD screen does not display, please check the fault. The shorter the cable length between the battery and the controller, the better. Suggest 30CM -100CM.

WARNINGS
If the controller terminals are short-circuited, it may cause fire or explosion. be careful. (It is strongly recommended to connect a fuse 1.5 times the rated current of the controller on the battery side)

If the battery is connected in reverse, the output of the controller will have the same polarity as the battery. Please do not connect any load to the controller at this time, otherwise the load and the controller will be damaged.

As shown in the figure, connect the solar panel and the controller correctly. If the connection is successful and the sun is sufficient, the LCD will display the sun’s graphics and the arrow from the sun to the battery will be displayed. The voltage of solar panels under sunlight is very high, and high voltage can cause injury or damage to the controller. As shown in the figure, the load is correctly connected to the controller. In the 48V system, the reverse connection of the solar panel will destroy the solar charge controller. In order to avoid the load voltage damage, please use the button to approach the output of the controller first, and then connect the load to the controller. The controller does not provide load reverse connection protection, please be careful, the load reverse connection will damage the bulb.

About connecting the solar system to the ground
Please note that the negative pole of the solar charge controller battery is connected to the shell, which can be used to connect the device negative to the ground system.

Warning : For some equipment positive-to-ground connection systems, such as solar communication systems and portable solar systems, please do not connect the equipment ground wire to the control system casing directly at this time, otherwise it will cause a short circuit.

Operation and instructions

Main interface
After the controller is powered on, there will be a 1s initialization interface, enter the main interface.

BYGD-Solar-Charger-Controller-FIG-5When there is no operation in the main interface for the 20s, the main interface will switch automatically when the battery voltage, solar panel voltage, load current, charging current, ambient temperature, and other interfaces are maintained for 3s. Long press ” “on the main interface for more than 5s to accelerate automatic exchange. Release the button to stop the speed.

BYGD-Solar-Charger-Controller-FIG-6

Press ” ” under the main interface to turn on or off the load output.

Long press “ ” and ” “and hold on the main interface for more than 5s, and the working storage interface opens, automatically displaying the number of working days, the number of insufficient battery times, the number of full batteries, and the number of overcurrent protection.

BYGD-Solar-Charger-Controller-FIG-8

Press ” ” key to enter the next menu of the main interface.

BYGD-Solar-Charger-Controller-FIG-9

Accumulated charging power (AH)
This parameter is the charge AH counter, which shows the total power generation capacity of the solar panel. Press  ” and hold for more than 5s in this interface, the  counter will return to zero.

Accumulated Charging Power (AH)

Cumulative discharge power (AH)
This parameter is the discharge AH counter, which shows the power consumption of the load. In this interface, press ” “and hold for more than 5s, the counter can return to zero.

BYGD-Solar-Charger-Controller-FIG-12

Float voltage setting
This parameter is the high voltage disconnect (HVD) voltage. (Increase the boost voltage by 0.6V based on HVD) At this time, the controller starts the PWM function (HVD) to limit the boost.

Press ” ” to join the float voltage menu. Long press the ”  ” key ≥ 5S, the interface parameter is flash, here is the setting state. Release the button and press the “ ” key to add data and press the  ” key to subtract data. After completing the required technical data, long-press the  ” key again, ≥5S, the parameters will be saved and enter the setting state. If there is no operation for 20s, it will automatically return to the main interface.

Load reconnect voltage

Low voltage recovery operating voltage (LVR)
When the battery voltage is low, the controller stops supplying power to the load. If the controller needs to reconnect the output, the battery voltage must be higher than the LVD voltage or press the ” ” key to release. The procedure is the same as (c).

Low voltage disconnection voltage
When the battery voltage is low, the load output will be cut off. When the controller detects that the battery voltage is less than the LVD point, the cut-off function will work immediately. At the same time, the state of the controller is locked. The user must charge the battery, when the battery voltage is higher than the LVD voltage or press the ” ” key to release. The load output will return. The procedure is the same as (c). The default data of the above three parameters a, b, c are fully considered by the designer according to the actual usage. Users generally do not need to adjust. Please refer to the recommendations of the battery supplier, otherwise, the battery will be damaged or irreparably damaged.

Load working mode selection
Control the default loading 24 hours work. When the load working time is set to 24 hours, the load will maintain a 24-hour trouble-free working state. When the load working time is set to: s23H, it means there is a load start timer or sensor function. If the battery capacity is sufficient, start loading at sunset. The load will work at the hour set by the timer or stop working until sunrise.
The procedure is the same as (c). When the load joins the timer or sensor mode, if the reset working time exceeds the actual night time, the load output will be turned off at sunrise, although the working time has not reached the set hour. For example, if the local actual night time is 10 hours, the user resets the night work time to 12 hours, but the output will be automatically turned off after 10 hours, and the remaining time will return to zero. The load of the next sunset signal will work normally.

Load sharing settings
This parameter is used to set the load discharge capacity. When the load capacity (AH) reaches the set value, the load will automatically shut down and the set value will return to zero. Please manually start the load or reset the consumption capacity of the load. The default consumption capacity of the load is unlimited. The procedure is the same as (C).

System voltage selection

  • This parameter is suitable for customers’ wide-range voltage requirements. The default display “UT0” system voltage 12/24/48v auto.
  • When the battery voltage is between 9V-15V, the controller automatically switches to 12V system work; when the battery voltage is between 18-30V, the controller automatically switches to 24V system work; when the battery voltage is between 36V-60V, the control system automatically switches to 48V operation.
  • If the system voltage is set to “1”, the controller will always work in the 12V version. The battery voltage is invalid. Reset data will work after reconnecting.
  • If the system voltage is set to “2”, the controller will always work in the 24V version. The battery voltage is invalid. Reset data will work after reconnecting.
  • If the system voltage is set to “3”, the controller will always work in the 48V version. The battery voltage is invalid. Reset data will work after reconnecting.

Protection function
Battery low voltage protection (LVD)When the battery voltage is less than 11V, the LVDprotection is activated. The output is cut off and the battery symbol and warning flash. Please increase the charging current or charging time. When the battery voltage is greater than 12.6V, the protection is turned off. Load output and return or press ” ” on the main interface to force unlock. 24V system is voltage x 2,48V system is voltage x 4.


Battery over-voltage disconnect (OVD)
When the battery voltage is greater than 16.5V, the overvoltage protection is activated. When the load is cut off, the load and warning symbols flash at the same time. When the battery voltage drops to 15V, the protection is disconnected. The output of the load is returned. 24V system is voltage x 2,48V system is voltage x 4.

Overcurrent protection
When the load is short-circuited or overloaded, the output is disconnected, and the load symbol and warning flash. Please confirm whether the load terminals are short-circuited and reduce the load power. After the 30s, the controller will automatically restart to unlock, or press “on the main interface.

High voltage disconnect protection (HVD)
When the battery is charged to 13.8V, the PWM function is activated, the charging symbol flashes, and the battery voltage has been limited. 24V system is voltage x2, 48V system is voltage x4.

Common faults and treatment

Failure

phenomenon

| possible reason| Solution
---|---|---
No LCD display after connecting with battery| Low battery voltage Reverse battery connection Disconnect| Please confirm the battery voltage and connect the controller to the battery correctly.
The solar panel is full of sunlight and vertical, and there is no solar sign and charging sign on

the LCD panel.

| Solar panel connection open circuit, short circuit or reverse connection| Please check whether the solar panel cable is connected correctly and firmly.
LVD display LVD controller| The battery is too discharged| Please check whether the system design is reasonable. If there is a discharge capacity greater than the charge capacity.
Controller display HVD| Battery voltage is too high| Please cut off the solar panel first to see if the voltage drops to a normal level. If the fault is

not over, please cut off the battery with the controller

and reconnect it.

Controller shows over current protection| The load is short circuit, overload or high peak power| Please check whether the load cable has a short circuit, the power design of the load is over-rated, and the peak power of the load

is too high.

Technical Parameters

Model| PV2410U| PV2420U| PV2430U                PV2440U| PV2450U| PV2460U| PV4860U
---|---|---|---|---|---|---
System

voltage

| | | 12V/24V

12V/24V/48V

| | |
Maximum input voltage

of solar panel

| | | ****

50V

| | |
Standby loss| | | ≤50| | |
Maximum charging

current

| 10A| 20A| 30A                        40A| 50A| 60A| 60A
Maximum

discharge current

| 10A| 20A| 30A                        40A| 50A| 60A| 60A
| 120W/12V| 240W/12V| 480W/12V               480W/12V| 600/12V| 800/12V| 800W/12V
Maximum power of

solar panel

| 240W/24V| 480W/24V| 960W/24V               960W/24V| 1200/24V| 1600/24V| 1600W/24V

3200W/48V

Battery Low

Voltage Protection

| | 11.0V ADJ 9V……. V; x2/24V x4/48V|
Battery discharge recovery

(LVR)

| | 12.6V ADJ 11V………… V; x 224V; x4/48V|
Float| | 13.8V ADJ 13V….. V; x224V; x4/48V|
Fast charging| | 14.4V; x2/24V; x4/48V When the battery voltage is

Lower than 12V, start boosting and charging for 2 hours

Battery overvoltage

protection

| | 16.5V; x2/24V; x4/48V|
Overcurrent

protection

| | Yes, restart every two minutes|
Charging type| | PWM|
Temperature

compensation

| | -24 Mv/°C ft is 12V system; x2/24V; x4/48V|
Operating

temperature

| | -20°C-+55°C|
Terminal size| | 20~3 AWG 25mm2|
Stripping

length

| | 16mm|
Waterproof

level

| | IP30|
Product Size| 1689242mm| 19210944mm   200127.555.1mm|
Package Size| 18210048mm| 21012050mm   22113566mm|
USB| | 5V 2.1A|
Weight| 0.3KG| 0.4KG| 0.7KG
Qty| 40pcs| 30pcs| 24pcs

Warranty Conditions
A new product purchased in the Alza.cz sales network is guaranteed for 2 years. If you need repair or other services during the warranty period, contact the product seller directly, you must provide the original proof of purchase with the date of purchase.
The following are considered to be a conflict with the warranty conditions, for which the claimed claim may not be recognized:

  •  Using the product for any purpose other than that for which the product is intended or failing to follow the instructions for maintenance, operation, and service of the product.

  •  Damage to the product by a natural disaster, the intervention of an unauthorized person or mechanically through the fault of the buyer (e.g., during transport, cleaning by inappropriate means, etc.).

  •  Natural wear and aging of consumables or components during use (such as batteries, etc.).

  •  Exposure to adverse external influences, such as sunlight and other radiation or electromagnetic fields, fluid intrusion, object intrusion, mains overvoltage, electrostatic discharge voltage (including lightning), faulty supply or input voltage and inappropriate polarity of this voltage, chemical processes such as used power supplies, etc.

  •  If anyone has made modifications, modifications, alterations to the design or adaptations to change or extend the functions of the product compared to the purchased design or use of non-original components.

References

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