PWM Solar Charge Controller with LCD Display 20A ,12/24/36/48V,VS2048BN
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Solar Controller Descriptions
ViewStar series solar controller is our new generation controller for off-grid solar system. It can be widely used with various applications, such as street light, solar home system or small power station etc.
Features
·Excellent EMC design
·32 bit MCU with high speed
·High efficient Series PWM charging
·Four battery type options: Sealed, Gel, Flooded, and USER
·Intelligent lighting and timer control for solar lighting system
·12 bit A/D high-precision sampling to ensure accuracy
·Use MOSFET as electronic switch
·Full control parameters setting and modification, diversified load control mode
·Humanized design of browser interface, undertake every operating conveniently
·Temperature compensation
·Adopt graphics dot-matrix LCD screen and HMI (human-machine interface) with 4 buttons,integrated menu displaying and operation
·Energy statistics function
·RS485 ports with MODBUS communication protocol
·Optional PC monitoring software and remote meter for real-time monitoring and battery management parameter setting
·Field upgradable firmware
Electronic Protections:
·PV short circuit protection
·PV reverse polarity protection
·Battery overcharge protection
·Battery over discharge protection
·Battery reverse polarity protection
·Load overload protection
·Load short circuit protection
·Overheating protection
Specification:
Model | VS2048BN | VS3048BN | VS4548BN | VS6048BN |
Nominal system voltage | 12/24/36/48V auto work | |||
Rated battery current | 20A | 30A | 45A | 60A |
Rated load current | 20A | 30A | 45A | 60A |
Max. battery voltage | 64V | |||
Equalize charging voltage | Sealed: 14.6V, Flooded: 14.8V, User-defined: 9~17V | |||
Boost charging voltage | Gel: 14.2V, Sealed: 14.6V, Flooded: 14.8V, User-defined: 9~17V | |||
Float charging voltage | Gel /Sealed /Flooded: 13.8V, User-defined: 9~17V | |||
Low voltage reconnect voltage | Gel /Sealed /Flooded: 12.6V, User-defined: 9~17V | |||
Low voltage disconnect voltage | Gel /Sealed /Flooded: 11.1V, User-defined: 9~17V | |||
Self-consumption | ≤15mA(12V); ≤10mA(24V); ≤9mA(36V); ≤8mA(48V) | |||
Grounding | Common negative | |||
Temp. compensation | -3mV/°C/2V | |||
Relative humidity | 10%~90% Non-condensation | |||
Communication | RS485 / RJ45 interface | |||
LCD temperature | -20°C ~ +70°C | |||
Working temperature | -25°C ~ +55°C | |||
Humidity | ≤95% N.C. | |||
Enclosure | IP30 | |||
Overall dimension | 200x103x58mm | 201x109x59mm | 205x119x67mm | 205x174x64mm |
Terminals | 16mm2 | 35mm2 | 35mm2 | 35mm2 |
Net weight | 0.7kg | 0.9kg | 1.2kg | 1.5kg |
- Q:How does an MPPT solar controller differ from a PWM controller?
- An MPPT (Maximum Power Point Tracking) solar controller and a PWM (Pulse Width Modulation) controller are two different types of charge controllers used in solar power systems. The main difference between these two controllers lies in their charging techniques and efficiency. A PWM controller is simpler and more basic compared to an MPPT controller. It works by rapidly turning the solar panel's output on and off, allowing the battery to be charged intermittently. This results in a fluctuating charging current, where the panel output voltage is reduced to match the battery voltage. As a result, the solar panel operates at a lower voltage than its maximum power point, leading to some power loss. On the other hand, an MPPT controller is more advanced and efficient in maximizing the power output of the solar panel. It uses a sophisticated algorithm to continuously track the maximum power point of the panel, adjusting the voltage and current to ensure that the panel operates at its optimum output. By doing so, an MPPT controller allows the solar panel to deliver its maximum power to the battery, resulting in higher charging efficiency and overall system performance. Moreover, an MPPT controller can handle higher input voltage from the solar panel, which enables the use of longer wiring distances and allows for more flexibility in system design. It also works well in conditions where the solar panel's output voltage is significantly higher than the battery voltage. In summary, while a PWM controller is a simpler and more cost-effective option, an MPPT controller offers superior charging efficiency, better utilization of the solar panel's power, and the ability to handle higher voltage inputs. Therefore, an MPPT controller is generally recommended for larger, more complex solar power systems, where optimizing energy harvest and maximizing system performance are of utmost importance.
- Q:How does a solar controller prevent overvoltage damage to the batteries?
- A solar controller prevents overvoltage damage to the batteries by continuously monitoring the voltage levels from the solar panels. When the voltage exceeds a certain threshold, the controller regulates the charging process by either reducing the charging current or temporarily disconnecting the panels from the batteries. This ensures that the batteries are not subjected to excessive voltage, protecting them from potential damage.
- Q:Can a solar controller be used with solar panels of different temperatures?
- Yes, a solar controller can be used with solar panels of different temperatures. Solar controllers are designed to regulate the charging process of batteries connected to solar panels, regardless of the temperature of the panels. The controller monitors the voltage and current from the solar panels and adjusts the charging parameters accordingly. This ensures that the batteries are charged efficiently and safely, regardless of the temperature conditions. However, it is worth noting that extreme temperatures, whether hot or cold, can affect the overall performance and efficiency of the solar panels themselves.
- Q:What is the maximum operating temperature of a solar controller?
- The maximum operating temperature of a solar controller typically depends on the specific make and model, but it is commonly around 40 to 60 degrees Celsius.
- Q:How does a solar controller handle variations in solar panel cleaning frequency?
- A solar controller does not directly handle variations in solar panel cleaning frequency. Its main function is to regulate and optimize the charging and discharging of the battery in a solar power system. However, a well-maintained and clean solar panel will generally provide more efficient energy conversion, which can lead to improved battery charging. Therefore, it is recommended to clean solar panels regularly to maximize their performance and overall system efficiency.
- Q:How does a solar controller handle battery under-voltage disconnect recovery?
- The regulation of charging and discharging for batteries connected to a solar power system is the responsibility of a solar controller. The solar controller plays a crucial role in managing the recovery process for battery under-voltage disconnect. When the battery voltage drops below a predetermined threshold, the under-voltage disconnect feature in the solar controller activates. This feature disconnects the battery to prevent complete discharge, which can cause irreversible damage. If the battery voltage falls below the under-voltage disconnect threshold, the solar controller initiates a recovery process. The specific method used may vary depending on the controller model and its capabilities. However, the general principle is to disconnect any loads connected to the battery to prevent further discharge and allow the battery to recharge. During this recovery process, the solar controller continuously monitors the battery voltage. It waits until the battery voltage reaches a safe level for reconnection, which is typically higher than the under-voltage disconnect threshold. This ensures that the battery has adequately recovered before reconnection. Once the battery voltage reaches the safe level, the solar controller automatically reconnects the loads, allowing the system to resume normal operation. This safeguards the battery from deep discharge while enabling it to continue powering the connected loads. It's important to note that users can often customize or adjust the settings and parameters for under-voltage disconnect recovery based on their preferences and system requirements. This flexibility enables users to optimize the performance and protection of their solar power system to meet their specific needs. In conclusion, a solar controller manages battery under-voltage disconnect recovery by disconnecting loads, monitoring battery voltage, and automatically reconnecting loads once the battery has sufficiently recovered. This process safeguards the battery and ensures the smooth operation of the solar power system.
- Q:Can a solar controller be used in off-grid applications?
- Yes, a solar controller can be used in off-grid applications. In fact, it is an essential component of off-grid solar systems as it helps regulate the charging and discharging of the battery bank, ensuring optimal performance and preventing overcharging or deep discharging. The solar controller also helps protect the batteries from damage caused by various factors such as excessive voltage, temperature fluctuations, and overcurrent.
- Q:How does a solar controller prevent voltage instability in the system?
- A solar controller prevents voltage instability in the system by regulating the flow of electricity from the solar panels to the batteries. It monitors the voltage and ensures that it stays within a safe and optimal range by adjusting the charging or discharging rate accordingly. This prevents overcharging or undercharging of the batteries, which can lead to voltage instability and potential damage to the system.
- Q:Can a solar controller be used with solar-powered refrigeration systems?
- Yes, a solar controller can be used with solar-powered refrigeration systems. A solar controller is a device that regulates the voltage and current coming from solar panels to ensure the efficient charging and discharging of batteries. It helps to maximize the performance of the solar panels and protect the batteries from overcharging or discharging. In a solar-powered refrigeration system, the solar controller can be used to manage the power flow from the solar panels to the batteries that store the energy. It ensures that the batteries are charged properly during daylight hours and that the refrigeration system operates efficiently when the sun is not shining. By using a solar controller, solar-powered refrigeration systems can effectively harness solar energy and provide reliable cooling without relying on the grid or fossil fuels.
- Q:Can a solar controller be used with solar-powered indoor cultural facilities?
- Yes, a solar controller can be used with solar-powered indoor cultural facilities. A solar controller helps regulate and optimize the charging and discharging of batteries connected to solar panels. It ensures that the solar energy is efficiently stored and utilized, which can be beneficial for powering various electrical systems and equipment in indoor cultural facilities that rely on solar power.
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PWM Solar Charge Controller with LCD Display 20A ,12/24/36/48V,VS2048BN
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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