Microinverter FAQ
Basic FAQ
What is a microinverter?
Microinverter refers to an inverter that can track the maximum power point of each photovoltaic module individually, and then integrate it into the AC grid after inversion to achieve fine adjustment and monitoring of the output power of each photovoltaic module. Microinverters are mainly used in small and medium-sized power stations such as distributed and photovoltaic buildings, and the power is generally below 5kW.
What are the advantages of microinverters compared to traditional inverters?
Safety
In the traditional string system, components are connected in series. There is a DC high voltage of 600-1000V in the DC loop. The DC high voltage is easy to arc and cause open flames, and is accompanied by a high temperature of 4000 degrees. At this high temperature, steel structures soften, walls crack, and glass melts, causing buildings to catch fire and collapse. Micro-inverter technology adopts a fully parallel circuit design. There is no voltage superposition between components. The DC voltage is less than 60 volts (not higher than the maximum output DC voltage of the component). This completely solves the fire risk caused by high-voltage DC arcing. At the same time, It also solves the problem of high voltage direct current from the roof hindering rescue operations when a house catches fire.
More power generation
Photovoltaic power stations installed on roofs inevitably suffer from factors such as occlusion, attenuation, shadows, dust, mud, bird droppings, etc., which cause a serious reduction in the power of individual components. In traditional systems, modules are connected in series and then connected to the DC input of the string inverter. The failure or power drop of one of the photovoltaic panels will greatly reduce the power output of the string of modules. In the microinverter system, there are no series or parallel connections between components. The microinverter has an independent MPPT for each component to ensure that each photovoltaic panel outputs at its maximum power. When the output power of one of the photovoltaic panels drops seriously, it will not Affects the maximum power output of other photovoltaic panels.
Flexible expansion and transformation
In a system using a micro-inverter, the inverter is integrated with the photovoltaic components, allowing for modular design and plug-and-play. The micro-inversion is small in size and does not occupy any installation space independently. It is easy to configure and make full use of space and can adapt to applications in different installation directions and angles. In addition, the use of micro-inverters makes roof expansion and transformation easier, and it is highly flexible. The number of inverters can be selected completely according to the expansion needs.
What is the difference between maximum short circuit current and maximum input current?
The maximum allowable current measured when the positive and negative poles are short-circuited is the maximum short-circuit current, and the maximum operating current refers to the maximum output current value that allows the string to operate.
Are microinverters compatible with all solar panels?
BENY microinverters are compatible with standard solar panels.
How long is the service life of a microinverter?
BENY microinverters are designed to have the same lifespan as solar panel systems, approximately 25 years.
Installation FAQ
LED Light of micro inverter does not light (DC power supply is abnormal)
Problem 1: DC power supply not supplying power or cable not connected in place.
Solution: Check the DC cable or re-plug it.
Problem 2: Module damaged.
Solution: Measure the DC voltage of the module, if there is no voltage, try replacing a module.
Problem 3: Damaged micro inverter.
Solution: Contact suppliers to replace
Microinverter flashing red light
Problem 1:AC cable is not connected in place.
Solution: Check or re-plug the AC cable and measure the AC port voltage to make sure it is within the micro inverter operating range.
Problem 2:Grid undervoltage / Grid overvoltage.
Solution: In case of an unexpected alarm, the grid voltage may be temporarily abnormal. The microinverter will automatically resume when the grid voltage returns to normal.
Problem 3: PV under-undervoltage.
Solution: Check whether the specifications of the PV module meet the requirements of the micro-inverter parameters or whether there is any blockage on the surface, and if the voltage is less than 22V, it cannot start.
Problem 4: PV under-overvoltage.
Solution: Check whether the specifications of PV modules meet the requirements of microinverter parameters, the voltage should not be bigger than 60V, otherwise the machine will be damaged.
Problem 5: The microinverter is damaged.
Solution: Contact suppliers to replace.
Other abnormality
Log in the monitoring background, check the relevant faults, refer to the corresponding faults on the user manual , and contact BENY to deal with faults.
Can't find an answer?
Don't hesitate to get in touch with us atbenyshop@beny.com
APP FAQ
Microinverter Wi-Fi cannot connect.
Not adding the device.Add the microinverter to the power station first and try to connect again.
Microinverter doesn't have wi-fi signal.
DC power is not supplied or the cable is not connected properly (The light of Micro inverter light means that DC connection is normal). Check the DC cable or re-plug it.
Poor communication quality of PLCC Micro inverter.
Scenario 1: LINE and LOAD terminals of the filter are reversed.Check the direction of filter installation
Scenario 2: The gateway and Microinverter are not connected to the LINE side of the filter. Check the installation position of the microinverter and gateway .
Micro Inverter works normally but there is no data upload.
Scenario 1: The serial number of the device is entered incorrectly. Check the serial number of the device.
Scenario 2: Not doing AP Distribution Network.Doing AP Distribution Network, you can refer to instructional video.
Scenario 3: Wi-Fi module is damaged. Contact dealer for replacement.
Wi-Fi communication quality is poor.
Router is too far away from the microinverter.Shorten the distance between micro inverter and router.
Can't add devices under power station/gateway.
Entering the serial number of device falsely and repeatedly.Check the serial number of the equipment or contact the dealer.
Data display abnormality.
Contact BENY to solve the problems when abnormal situation occur.
Microinverter Networking Instructions
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