LEADER SOLAR TD4815F MPPT Solar Charge Controller User Manual

LEADER SOLAR TD4815F MPPT Solar Charge Controller

FAQs

• Q: What should I do if the controller displays an error message?
  • A: If the controller shows an error message, refer to the user manual for troubleshooting steps. If the issue persists, contact customer support for assistance.
• Q: Can the controller be used for household solar systems?
  • A: Yes, the controller is suitable for various applications including household solar systems, field monitoring, and solar RVs.

PRODUCT INFORMATION

Dear users, Thank you for choosing our product!

Important Safety Instructions: Please keep this manual for future review.
This manual contains all instructions for the safety, installation, and operation of the Maximum Power Point Tracking (MPPT) controller (“the controller” as referred to in this manual).

General Safety Information

1. Read carefully all the instructions and warnings in the manual before installation.
2. No user-serviceable components inside the controller. Don’t disassemble or attempt to repair the controller.
3. Mount the controller indoors. Avoid exposure to the components and do not allow water to enter the controller.
4. Install the controller in a well-ventilated place. The controller’s heat sink may become very hot during operation.
5. Suggest installing appropriate external fuses/breakers.
6. Make sure to switch off all PV array connections and the battery fuse or breakers before controller installation and adjustment.
7. Power connections must remain tight to avoid excessive heating from loose connections.

Explanation of symbols

• To enable users to use the product efficiently and ensure personal and property safety, please read related literature accompanying the following symbols.
• Please read the literature accompanying the following symbols.
• Tips: Indicate recommendations that can be referred to.
• IMPORTANT: Indicates a critical tip during the operation, if ignored, may cause the device to run in error.
• CAUTION: Indicates potential hazards, if not avoided, may cause the device damaged.
• WARNING: Indicates the danger of electric shock; if not avoided, it would cause casualties.

General Information

Overview

• The MPPT controller is based on phase synchronous rectification technology and an advanced MPPT control algorithm, and adopts a co-negative design, with LCD displaying running status.
• The MPPT control algorithm can minimize the maximum power point loss rate and loss time, quickly track the maximum power point of the PV array and obtain the maximum energy from solar modules under any conditions, and can increase the ratio of energy utilization in the solar system by 20%-30% compared with a PWM charging method.
• The MPPT controller owns a self-adaptive three-stage charging mode based on a digital control circuit. This function can effectively prolong the battery’s lifespan and significantly improve the system’s performance.
• Limiting the charging power and reducing charging power functions ensure the system is stable with over PV modules in a high-temperature environment.
• With comprehensive electronic fault self-detecting functions and powerful electronic protection functions built inside the controller, component damage caused by installation errors or system failures can be avoided to the greatest extent possible.
• The utility/generator dry contact to connect external devices conveniently composes a hybrid power system easily.
• The isolated RS485 port with standard MODBUS communication protocol and 5V power supply makes it easy to expand the application. The controller can be widely used for various applications, e.g., solar RV, household system field monitoring, etc.

Features

With the advanced dual-peak or multi-peak tracking technology, when the solar panel is shadowed or part of the panel fails resulting in multiple peaks on the I-V curve, the controller is still able to accurately track the maximum power point.

• Advanced MPPT technology, with an efficiency no less than 99.5%
• Maximum DC/DC conversion efficiency of 98%
• Ultra-fast tracking speed and guaranteed tracking efficiency
• Advanced MPPT control algorithm to minimize the MPP loss rate and loss time
• Wide MPP operating voltage range
• Limit charging power & current over-rated range. When the solar panel power exceeds a certain level and the charging current is larger than the rated current, the controller will automatically lower the charging power and bring the charging current to the rated level.
• Support the lead-acid, gel, flooded with the needed Temp. compensation and support lithium batteries starting from solar panel
• Real-time working record function
• Load dry contact to control the external load switch
• Auto-control of utility and generator dry contact design to compose a hybrid power system easily
• Power reduction automatically over the temperature range
• TVS lighting protection.

Characteristics

1. LED

2. LCD with backlight

3. Screw Hole(M3)

4. RTS interface(2)

5. RJ45 Port(5VDC/200mA)(3)

6. Mounting Hole

7. Battery positive polarity terminals⑴

8. Battery negative polarity terminals⑴

9. Solar Panel negative polarity terminals⑴

10. Solar Panel positive polarity terminals⑴

11. Return

12. Down

13. OK

14. up

15. Menu

16. The controller is designed with a common negative polarity. The negative polarity of the PV and the battery is located on the same busbar.

17. Connect an RTS (Remote Temperature Sensor) to remotely detect the battery temperature. The sampling distance is no longer than 20m.

    • If the temperature sensor is short-circuited or damaged, the controller will charge at the default temperature setting of 25℃.(no temperature compensation)

18. When connecting the controller to external devices, only one of the RJ45 ports can be used. when connecting multiple controllers in parallel, RJ45 ports are for cascade use.
    1| VCC(+5V)
    ---|---
    2
    3| B-
    4
    5| A+
    6
    7| GND
    8

Maximum Power Point Tracking Technology

• Due to the nonlinear characteristics of the solar array, there is a maximum energy output point (Max Power Point) on its curve.
• Traditional controllers, with switch charging technology and PWM charging technology, can’t charge the battery at the maximum power point, so can’t harvest the maximum energy available from the PV array, but the solar charge controller with Maximum
• Power Point Tracking (MPPT) Technology can lock on the point to harvest the maximum energy and deliver it to the battery.
• The MPPT algorithm of our company continuously compares and adjusts the operating points to attempt to locate the maximum power point of the array. The tracking process is fully automatic and does not need user adjustment.
• As the Figure 1-2, the curve is also the characteristic curve of the array, the MPPT technology will ‘boost’ the battery charge current through tracking the MPP.
• Assuming 100% conversion efficiency of the solar system, in that way, the following formula is established:
• Normally, the VMpp is always higher than VBat, Due to the principle of conservation of energy, the IBat is always higher than IPV. The greater the discrepancy between VMpp &VBat, the greater the discrepancy between IPV& IBat.
• The greater the discrepancy between the array and battery, the bigger the reduction of the conversion efficiency of the system, thus the controller’s conversion efficiency is particularly important in the PV system.
• Figure 1-3 is the maximum power point curve, the shaded area is the charging range of a traditional solar charge controller (PWM Charging Mode), it can diagnose that the MPPT mode can improve the usage of the solar energy resource.
• According to our test, the MPPT controller can raise 20%-30% efficiency compared to the PWM controller. (Value may be fluctuant due to the influence of the ambient circumstance and energy loss.)
• In actual application, as shading from cloud, tree, and snow, the panel may appear Multi-MPP, but in actually there is only one real Maximum Power Point. As the below Figure 1-3 shows:
• If the program works improperly after appearing Multi-MPP, the system will not work on the real max power point, which may waste most solar energy resources and seriously affect the normal operation of the system.
• The typical MPPT algorithm, designed by our company, can track the real MPP quickly and accurately, improve the utilization rate of the array and avoid the waste of resources.

Battery Charging Stage

• The controller has a 3 stages battery charging algorithm (Bulk Charging, Boost Charging, and Float Charging) for rapid, efficient, and safe battery charging.

1. Bulk Charging
   In this stage, the battery voltage has not yet reached boost voltage, the controller operates in constant current mode, delivering its maximum current to the batteries (MPPT Charging).

2. Boost Charging

   • When the battery voltage reaches the boost voltage set point, the controller will start to operate in constant charging mode, this process is no longer MPPT charging, and in the meantime, the charging current will drop gradually, the process is not the MPPT charging.
   • The Boost stage maintains 2 hours in default. When the accumulated time reaches to 2hours, the charging mode will turn to Float charging.

3. Float Charging

   • After the boost voltage stage, the controller will reduce the charging current to the Float Voltage set point. This stage will have no more chemical reactions and all the charge current transforms into heat and gas at this time.
   • Then the controller reduces the voltage to the floating stage, charging with a smaller voltage and current. It will reduce the temperature of the battery and prevent the gassing and charging of the battery slightly at the same time.
   • The purpose of the Float stage is to offset the power consumption caused by self-consumption and small loads in the whole system while maintaining full battery storage capacity.
   • In the Float charging stage, loads can obtain almost all power from solar panels. If loads exceed the power, the controller will no longer be able to maintain battery voltage in the Float charging stage.
   • If the battery voltage remains below the Recharge Voltage, the system will leave the Float charging stage and return to the Bulk charging stage.

Included accessories

• The above-included accessories are packed in a plastic bag and a box, Please check after opening the package.
• The manufacturer may adjust the standard Bluetooth module without prior notice.
• Do not insert the same model terminals into different interfaces. Otherwise, the controller will be damaged.

Installation Instructions

General Installation Notes

• Please read the entire installation instructions to get familiar with the installation steps before installation.
• Be very careful when installing the batteries, especially flooded lead-acid batteries. Please wear eye protection, and have fresh water available to wash and clean any contact with battery acid.
• Keep the battery away from any metal objects, which may cause a short circuit of the battery.
• Explosive battery gases may come out from the battery during charging, so make sure the ventilation condition is good.
• Ventilation is highly recommended if mounted in an enclosure. Never install the controller in a sealed enclosure with flooded batteries! Battery fumes from vented batteries will corrode and destroy the controller circuits.
• Loose power connections and corroded wires may result in high heat that can melt wire insulation, burn surrounding materials, or even cause fire. Ensure tight connections and use cable clamps to secure cables and prevent them from swaying in mobile applications.
• Lead-acid batteries and lithium batteries are recommended, for other kinds please refer to the battery manufacturer.
• Battery connection may be wired to one battery or a bank of batteries. The following instructions refer to a singular battery, but it is implied that the battery connection can be made to either one battery or a group of batteries in a battery bank.
• Multiple models of controllers can be installed in parallel on the same battery bank to achieve a higher charging current. Each controller must have its solar module(s).
• When selecting connection wires for the system, follow the criterion that the current density is not larger than/mm2.

PV Array Requirements

1. Serial connection (string) of PV modules
   • As the core component of a PV system, the controller could be suitable for various types of PV modules and maximize converting solar energy into electrical energy.
   • According to the open circuit voltage (VOC) and the maximum power point voltage (VMpp) of the MPPT controller, the series number of different types of PV modules can be calculated. The below table is for reference only.
   • Table 2-1-1 _PV 150V****

     ---

System voltage

| 36 cell Voc ＜ 23V| 48 cell Voc ＜ 31V| 54 cell Voc ＜ 34V| 60 cell Voc ＜ 38V
---|---|---|---|---
Max.| Best| Max.| Best| Max.| Best| Max.| Best
12V| 4| 2| 2| 1| 2| 1| 2| 1
24V| 6| 3| 4| 2| 4| 2| 3| 2
48V| 6| 5| 4| 3| 4| 3| 3| 3

System voltage

| 72 cell Voc ＜ 46V| 96 cell Voc ＜ 62V| Thin-Film Module Voc ＞ 80V
---|---|---|---
Max.| Best| Max.| Best
12V| 2| 1| 1| 1| 1
24V| 3| 2| 2| 1| 1
48V| 3| 2| 2| 2| 1

• Table 2-1-2 _PV 200V****

  ---

System voltage

| 36 cell Voc ＜ 23V| 48 cell Voc ＜ 31V| 54 cell Voc ＜ 34V| 60 cell Voc ＜ 38V
---|---|---|---|---
Max.| Best| Max.| Best| Max.| Best| Max.| Best
12V| 4| 2| 3| 1| 2| 1| 2| 1
24V| 6| 3| 4| 2| 4| 2| 3| 2
48V| 8| 5| 5| 4| 5| 3| 4| 3

System voltage

| 72 cell Voc ＜ 46V| 96 cell Voc ＜ 62V| Thin-Film Module Voc ＞ 80V
---|---|---|---
Max.| Best| Max.| Best
12V| 2| 1| 1| 1| 1
24V| 3| 2| 2| 1| 1
48V| 4| 3| 2| 2| 2

• NOTE: The above parameter values are calculated under standard test conditions (STC (Standard Test Condition)： Irradiance 1000W/m2, Module Temperature 25℃, Air Mass1.5.)

2. Maximum PV array power
   • The MPPT controller has the function of current/power-limiting, that is, during the charging process, when the charging current or power exceeds the rated charging current or power, the controller will automatically limit the charging current or power to the rated charging current or power, which can effectively protect the charging parts of the controller, and prevent damages to the controller due to the connection of some over-specification PV modules.
   • The actual operation of the PV array is as follows:
   • Condition 1:
     • Actual charging power of PV array ≤ Rated charging power of the controller
   • Condition 2:
     • Actual charging current of PV array ≤ Rated charging current of controller
     • When the controller operates under “Condition 1” or “Condition 2”, it will carry out the charging as per the actual current or power; at this time, the controller can work at the maximum power point of PV array.
     • WARNING: When the power of PV is not greater than the rated charging power, but the maximum open-circuit voltage of PV array is more than 200V(at the lowest environmental temperature), the controller may be damaged.
   • Condition 3:
     • Actual charging power of PV array＞Rated charging power of controller
   • Condition 4:
     • Actual charging current of PV array＞Rated charging current of controller
     • When the controller operates under “Condition 3” or “Condition 4”, it will carry out the charging as per the rated current or power.
     • WARNING: When the power of PV module is greater than the rated charging power, and the maximum open-circuit voltage of PV array is more than 200V(at the lowest environmental temperature), the controller may be damaged.

According to the “Peak Sun Hours diagram”, if the power of PV array exceeds the rated charging power of the controller, then the charging time as per the rated power will be prolonged so that more energy can be obtained for charging the battery. However, in the practical application, the maximum power of PV array shall be not greater than 1.5 x the rated charging power of the controller. If the maximum power of PV array exceeds the rated charging power of the controller too much, it will not only cause the waste of PV modules, but also increase the open-circuit voltage of PV array due to the influence of environmental temperature, which may make the probability of damage to the controller rise. Therefore, it is very important to configure the system reasonably. For the recommended maximum power of PV array for this controller, please refer to the table below:

Table 2-2 Maximum power of PV array for this controller

Wire Size

• The wiring and installation methods must conform to all national and local electrical code requirements.
• PV Wire Size Since PV array output can vary due to the PV module size, connection method, or sunlight angle, the minimum wire size can be calculated by the Isc＊ of the PV array.
• Please refer to the value of Isc in the PV module specification. When PV modules connect in series, the Isc is equal to a PV module’s Isc.
• When PV modules connect in parallel, the Isc is equal to the sum of the PV module’s Isc. The Isc of the PV array must not exceed the controller’s maximum PV input current. Please refer to the table below:
• NOTE: All PV modules in a given array are assumed to be identical.
• Isc=short circuit current(amps) Voc=open circuit voltage.

Table 2-3 PV array must not exceed the controller’s maximum

These are the maximum wire sizes that will fit the controller terminal

1. The wire size is only for reference. Suppose a long distance exists between the PV array and the controller or between the controller and the battery. In that case, larger wires shall be used to reduce the voltage drop and improve the system performance.
2. The recommended wire for the battery is that its terminals are not connected to any additional inverter.

Mounting

• Warning: risk of explosion! Never install the controller and an open battery in the same enclosed space! Nor shall the controller be installed in an enclosed space where battery gas may accumulate.
• Warning: danger of high voltage! Photovoltaic arrays may produce a very high open-circuit voltage. Open the breaker or fuse before wiring, and be very careful during the wiring process.
• Note: when installing the controller, make sure that enough air flows through the controller’s radiator, and leave at least 100mm of space both above and below the controller to ensure natural convection for heat dissipation. If the controller is installed in an enclosed box, make sure the box delivers a reliable heat dissipation effect.

Installation Procedure

• Step 1: Choose the installation site Do not install the controller at a place that is subject to direct sunlight, high temperature or water intrusion, and make sure the ambient environment is well-ventilated.
• Step 2: Place the controller in a proper position, use a screwdriver to fit screws in the mounting hole.
• CAUTION: If the controller is to be installed in an enclosed box, it is important to ensure reliable heat dissipation through the box.
• Step 3: wire Connect the system in the order of ❶ battery ❷ PV array per Figure 2-2, “Schematic Wiring Diagram”. and disconnect the system in the reverse order❷❶

1.  **Single controller**
2.  **Connection in parallel**
  *  **CAUTION:** While wiring the controller do not close the circuit breaker or fuse and make sure that the leads of “+” and “-” poles are connected correctly.
  *  **CAUTION:** A fuse whose current is 1.25 to 2 times the rated current of the controller, must be installed on the battery side with a distance from the battery not greater than 150 mm.
  *  **CAUTION:** If an inverter is to be connected to the system, connect the inverter directly to the battery.

• Step 4： Connect accessories

1. Connect the remote temperature sensor cable to the interface and place the other end close to the battery
2. Plug the external Bluetooth or WiFi module into the RJ45 interface and the indicator light on the module will be on.

• Step 5: Grounding
  • Tracer Dream 200V series are common-negative controllers. In negative terminals of the PV array, the battery can be grounded simultaneously. However, according to the practical application, the PV array and battery’s negative terminals can also be grounded.
  • For common-negative systems, such as the RV system, it is recommended to use a common-negative controller. If a common-positive controller is used and the positive electrode is grounded in the common-negative system, the controller may be damaged.
• Step 6： Power on the controller

1. After connecting all power wires solidly and reliably, check again whether the wiring is correct and if the positive and negative poles are reversely connected. After confirming that no faults exist, firstly switch on the breaker of the battery, then see whether the LED indicator light be on and the LCD screen displays information. If the LCD screen fails to display information, switch off the breaker immediately and recheck if all connections are correctly done.
2. If the battery functions normally, then connect the solar panel or switch on the breaker of the solar panel. If sunlight is intense enough, the controller’s charging indicator will light up or flash and begin to charge the battery.
  *  **Note:**
    1. If no remote temperature sensor is connected to the controller, the battery temperature value will stay at 25 °C.
    2. If an inverter is deployed in the system, directly connect the inverter to the battery.

Operation

Button

contact
Clear Fault| Press   the   “Return”  button(   ↺ ) on the charging power(AH) interface
Browsing Mode| Press the “UP”(▲)and”Down”(▼) button.
Working Record| Long press “MENU” and” UP”(▲)for more than 5 seconds
Setting Mode| Press the “UP”(▲)and” Down”(▼) buttons to browse, then press “OK” to enter the setting mode Press the” UP”(▲)and” Down”(▼) buttons to adjust the parameters. Long press the “OK” button. to save the setting parameters.if no operation for 10s or press“Return” button( ↺ ) to exit the setting mode.

Interface

1. Status Description
2. LED Indicator
   • Note: the LED screen has a sleep function to save power. When it is detected that the solar panel cannot be charged, the controller will dim the brightness of the display after a delay of 5 minutes.Press any key or Restart charging can wake up the LED screen again.
3. Fault Indication
4. Browse interface
5. If there is no operation within the 20s or after powered on within 10s in any interface. The main interface will cycle to display the battery voltage, PV voltage, charging current, battery type, and battery temperature every 3s.Long press the“UP”(▲)and” Down”(▼) can speed up the cycle display time.
6. At the main interface(cycle display), long press “MENU” and” UP”(▲) for more than 5S at the same time to enter the working record status,it can show times of low voltage, working days, times of over current and times of full charging. Press the “Return” button( ↺ )to return to the main menu.
7. At main interface(cycle display), Press the “MENU” button and enter menu interface. Press”↺ ” to exit from any interface.

Setting

1. Clear the charging power(AH) Operation:
   • Press the “Return” button( ↺ ) on the charging power(AH) interface and the value will be cleared.
2. Float Voltage Setting
   • Operation:
   • Step 1: At the main interface(cycle display), Press “UP”(▲)and” Down”(▼) to enter float voltage interface.
   • Step 2: Press the “OK” button and the value flashes, Now it enters the setting state.
   • Step 3: Press the “UP”(▲)and” Down”(▼) button to change the value.
   • Step 4: After setting, Long press the “OK” button(≥5S ) to save the new setting. Press the “Return” button( ↺ ) to exit without saving.If there is no operation within 20s, the controller will enter the main interface and cycle to display automatically.
3. Setting of boost voltage, low voltage reconnect voltage and low voltage disconnect voltage
   • Operation: At main interface(cycle display),Press the“UP”( ▲ )and”Down”( ▼ ) button to enter the relevant interface below：
   • The operation method of setting is the same as float voltage setting, Please refer to the above“(2)”
   • The following rules must be observed when modifying the parameter values in User
   1. Charging Limit Voltage >Boost Charging Voltage >Float Charging Voltage > Boost Reconnect Charging Voltage.
   2. Low Voltage Reconnect Voltage > Low Voltage Disconnect Voltage(BMS+0.2V)
   3. Boost Reconnect Charging voltage > Low Voltage Reconnect Voltage > Low Voltage Disconnect Voltage(BMS+0.2V)
   • Battery Voltage Control Parameters
   • Below parameters are in 12V system at 25 ºC, please double the values in 24V system and quadruple the values in 48V system
     Battery Type| SEL 24V2;48V4| GEL 24V2;48V4| FLD 24V2;48V4| LF4(LiFePO44S/12V) LF8 (LiFePO4 8S/24V2) LFG (LiFePO4 16S/48V4)| *LI3 (Li(NiCoMn)O2 3S/12V) LI6 (Li(NiCoMn)O2 6S/24V2)| LI7 (Li(NiCoMn)O2 7S/24V)**

*LId (Li(NiCoMn)O2 14S/48V2)**

---|---|---|---|---|---|---
Over Voltage Disconnect|

16.0V

|

16.0 V

|

16.0 V

|

16.0V

| 17.0 V| 32.0V
Charging Limited Voltage|

15.0 V

|

15.0 V

|

15.0 V

|

14.8V

|

17.0 V

|

30.0V

Over Voltage Reconnect|

15.0 V

|

15.0 V

|

15.0 V

|

14.8V

|

17.0 V

|

30.0V

Boost charge| 14.4 V| 14.2 V| 14.6 V| 14.6V| 12.6V| 29.4V
Float charge| 13.8 V| 13.8 V| 13.8 V| 14.4V| 12.4V| 29.0V
Boost Restart Voltage|

12.6V

|

12.6V

|

12.6V

|

13.0V

|

11.5V

|

26.0V

Low voltage

reconnect

|

12.6V

|

12.6V

|

12.6V

|

12.6V

|

11.0V

|

25.2V

Low voltage

disconnect

|

11.0V

|

11.0V

|

11.0V

|

10.5V

|

9.0V

|

21.0V

4. Battery type
5. Support battery types**
   Lead-acid battery| Sealed(default)
   ---|---
   Gel
   Flooded
   User
   Lithium battery**| LiFePO4(LF4/12V;LF8/24V;LF16/48V)
   Li(NiCoMn)O2 (LI3/12V;LI6/24V;LI7/24V;LId/48V)
6. Setting the battery type via LCD
7. Step 1: At the main interface(cycle display), Press the “UP” (▲) and “Down” (▼) buttons to enter the battery type mode interface.
8. Step 2: Press the “OK” button once and the “SEL” flashes, then it enters the setting state.
9. Step 3: Press the “UP” (▲)and “Down” (▼) buttons to select the battery type below:
10. Step 4: Long press the “OK” button(≥5S) to save the new setting. Press the “Return” button( ↺ ) to exit without saving. If there is no operation within 20s, the controller will enter the main interface and cycle to display automatically.

Protections, Troubleshooting and Maintenance

Protection

PV current/power limiting protection| When the charging current or power of the PV array exceeds the controller’s rated current or power, it will be charged at the rated current or power.
NOTE: When the PV modules are in series, ensure that the open-circuit voltage of the PV array does not exceed the “maximum PV open-circuit voltage” rating. Otherwise the controller may be damaged.
---|---
PV Short Circuit| When not in PV charging state, the controller will not be damaged in case of a short-circuiting in the PV array.
PV Reverse Polarity| When the polarity of the PV array is reversed, the controller may not be damaged and can continue to

operate normally after the polarity is corrected.

Night Reverse Charging| Prevents the battery from discharging through the PV module at night.
Battery Reverse Polarity| Fully protected against battery reverse polarity; no damage will occur for the battery. Correct the wrong wiring to resume normal operation.

NOTE: Limited to the characteristic of lithium battery, when the PV connection is correct and battery connection is reversed, the controller will be damaged.

Night reverse charging protection| ****

Prevent the battery from discharging to the PV module at night.

Battery Over

Voltage

| When the battery voltage reaches the over voltage disconnect voltage, it will automatically stop battery charging to prevent battery damage caused by over-charging.
Battery Over Discharge| When the battery voltage reaches the low voltage disconnect voltage, it will automatically stop battery discharging to prevent battery damage caused by over-discharging. (Any controller-connected loads will be disconnected. Loads directly connected to the battery will not be affected and may continue to discharge the battery.)
Controller Overheating| The controller is able to detect the temperature inside the battery. The controller stops working when its temperature exceeds 85 °C and restart to work when its temperature is below 65 °C.
TVS High Voltage Transients| The internal circuitry of the controller is designed with Transient Voltage Suppressors (TVS) which can only protect against high-voltage surge pulses with less energy. If the controller is to be used in an area with frequent lightning strikes, it is recommended to install an external surge arrester.

When the internal temperature is 75℃, the reducing power charging mode which reduce the charging power of 5% every increase 1 ℃is turned on. If the internal temperature is greater than 85℃, the controller will stop charging. When the temperature declines to be below 65 ºC, the controller will resume.

Troubleshooting

Maintenance

The following inspections and maintenance tasks are recommended at least two times per year for best performance.

• Make sure the controller is firmly installed in a clean and dry ambient.
• Make sure no block on airflow around the controller. Clear up any dirt and fragments on the radiator.
• Check all the naked wires to make sure insulation is not damaged by solarization, frictional wear, dryness, insects or rats, etc. Repair or replace some wires if necessary.
• Tighten all the terminals. Inspect for loose, broken, or burnt wire connections.
• Check and confirm that the LED is consistent with required. Pay attention to any troubleshooting or error indication. Take corrective action if necessary.
• Confirm that all the system components are ground-connected tightly and correctly.
• Confirm that all the terminals have no corrosion, insulation damage, high temperature, or burnt/discolored sign, tighten terminal screws to the suggested torque.
• Check for dirt, nesting insects, and corrosion. If so, clear up in time.
• Check and confirm that the lightning arrester is in good condition. Replace a new one in time to avoid damaging the controller and even other equipment.

WARNING： Risk of electric shock! Make sure that all the power is turned off before the above operations, and then follow the corresponding inspections and operations.

Technical Specifications

Electrical Parameters

100A/200V
Battery voltage range| 8～68V
Max. PV open circuit voltage| ② 138V

③ 150V

| ② 180V

③ 200V

MPP voltage range| (Battery voltage +2V)～ 108V| (Battery voltage +2V)～ 144V

Rated charge power

| 800W/12V

1600W/24V

3200W/48V

| 1000W/12V

2100W/24V

4200W/48V

| 1300W/12V

2600W/24V

5200W/48V

| 800W/12V

1600W/24V

3200W/48V

| 1000W/12V

2100W/24V

4200W/48V

| 1300W/12V

2600W/24V

5200W/48V

Self-consumption| ≤50mA(12V)/37mA(24V)/27mA(48V)
LVD| 11.0V ADJ 9V….12V；×2/24V；×4/48V
LVR| 12.6V ADJ 11V….13.5V；×2/24V；×4/48V
Float voltage| 13.8V ADJ 13V….15V；×2/24V；；×4/48V
Boost voltage| 14.4V ； ×2/24；×4/48V Battery Voltage less than 12.6V Start Boost changing for 2hours(Li-battery not)
MPPT tracking efficiency| ≥99.5%
Max. Conversion efficiency| ****

98%

Grounding| Common negative
Battery Type| Sealed(Default)/Gel/Flooded/LiFePO4/ Li(NiCoMn)O2/ User
Temperature compensate

Coefficient ④

| -4mv/℃/2V
Communication method| RS485(5VDC/200mA）
LCD backlight time| Default: 15S

1. When a lithium battery is used, the system voltage can’t be identified automatically.
2. At minimum operating environment temperature
3. At 25℃ environment temperature
4. When a lithium battery is used, the temperature compensation coefficient will be 0.

Environmental Parameters

The controller can work under full load in the working environment temperature, When the internal temperature is more than 80℃, the reducing power charging mode is turned on.

Mechanical Parameters

Mounting

Dimension(A*B)

| 130×200mm| 140×283mm| 140×283mm
Mounting hole size| Φ5mm
Weight| 3.2Kgs| 3.8Kgs| 3.9Kgs

Any changes without prior notice

FCC

This device complies with part 15 of the FCC Rules.

Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and
2. this device must accept any interference received, including interference that may cause undesired operation.

Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, under part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used following the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. Suppose this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on. In that case, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

RF warning for Mobile devices:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator & your body.

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