HYXIPOWER M300/400/500-SW Micro Inverter User Manual

1. Safety Instructions

HYX-M300-SW, HYX-M400-SW, HYX-M500-SW series microinverters efficiently convert direct current into alternating current that meets the requirements of the power grid and feed the power into the power grid. They are designed and tested in strict accordance with relevant national safety standards.

The installation, trial operation, operation and maintenance of the inverter must comply with relevant safety regulations. Incorrect operation or use will endanger:

Important Safeguards and Warnings

To ensure the installation and operation safety of the inverter and reduce the risk of electric shock, this manual uses the following safety symbols to mark some danger indications and safety precautions. Safeguards and Warnings in the specific operation process will also be explained in detail in the corresponding chapters.

This manual contains important instructions to be followed when installing and maintaining the microinverter. Users should read this manual thoroughly before installing or debugging the microinverter.

For safety, the technicians responsible for the installation, operation and maintenance of this microinverter must have corresponding qualifications, received relevant training and master relevant skills. Installation, operation and maintenance must strictly follow the instructions contained in this manual.

1.1 Safety Instruction

1.2 Symbol Description

1.2.1 Symbols Used in the Manual

DANGER: Indicates dangerous conditions that might cause fatal electric shock risk, serious personal injury or fire.

CAUTION: To avoid potential safety hazards, the corresponding instructions must be strictly followed.

NOTICE: This operation is prohibited, and relevant personnel should stop the operation.

1.2.2 Other Symbols

Symbol Description
⚠️ Caution: When the device is running, do not step within 0.2 m of its periphery.
High Voltage: The high voltage generated by the microinverter can endanger life.
?️ High Temperature: The microinverter will generate heat during operation. Do not touch the metal surface.
? Reading Manual: Read the user's manual carefully before installation, operation and maintenance.
CE CE: The microinverter meets EU low voltage standard.
♻️ Discarding: Do not treat the microinverter as domestic garbage.

1.3 Radio Wave Interference Statement

After testing, this microinverter meets the requirements of CE and EMC and is free from electromagnetic interference. This product might cause electromagnetic interference if it is improperly installed.

You can turn off the microinverter and then start it again to detect whether the radio is interfered by the inverter. If the inverter interferes with radio, take the following measures to eliminate the influence:

2. Product Introduction

2.1 Photovoltaic On-Grid System

The on-grid system diagram of HYX-M500-SW series microinverter is as follows:

A textual description of the diagram shows a PV module connected to a microinverter. The microinverter is connected to a meter, which is then connected to the grid. A load is also shown connected to the grid. The microinverter has connections for PV module, AC branch connector, and antenna. The diagram also indicates the cable used for the miniature inverter with color coding: PE (Green-yellow), N (Blue), L (Brown).

2.2 Microinverter

HYX-M300-SW, HYX-M400-SW, HYX-M500-SW series are 1-in-1 microinverters, which can connect one photovoltaic module. They are module-level photovoltaic inverters with module-level monitoring function.

The whole system consists of two parts: photovoltaic on-grid power generation system and photovoltaic monitoring system. The photovoltaic on-grid power generation system includes photovoltaic modules, microinverter, AC cable, and other accessories. The microinverter is the core product of the photovoltaic power generation system, and it has independent maximum power point tracking (MPPT) control, which can maximize the energy output of the whole solar array and maximize the power generation performance of the photovoltaic system, regardless of how the array is arranged or when it encounters unsatisfactory conditions such as shadow occlusion, dirt accumulation, illumination deviation, or mismatch in practical application.

In addition, microinverters do not require the consistency of photovoltaic modules like central and series inverters. Each microinverter transformer can be easily mounted on the rack below the panel. The panel-side low-voltage DC line can be directly connected to the microinverter, eliminating the danger of high-voltage DC voltage.

Remote monitoring platform:

The operating data and working status of the inverter are transmitted through the wireless router, and the user is provided with module-level monitoring through the Web or App application to realize remote operation and maintenance.

2.3 1-in-1 Microinverter System

The DC side can choose a microinverter series according to the number of connected photovoltaic modules. As shown below:

Diagrams illustrate 1-in-1, 2-in-1, and 4-in-1 configurations. The manual focuses on the 1-in-1 series.

This series of HYX-M500-SW has outstanding performance in the 1-in-1 series, with an output power up to 500VA. Each microinverter can be connected to one photovoltaic module. It has independent MPPT and module-level data monitoring functions, high power generation, and easy and convenient maintenance features.

2.4 Communication Technology

HYX-M500-SW microinverter series adopts a new Wi-Fi wireless communication solution. Wi-Fi communication solution: It operates in the 2.4GHz frequency band, and the transmission distance is weaker than the Sub-1G frequency band. It does not need additional communication equipment and can directly communicate with Hyxi Cloud.

2.5 Product Features

2.6 Inverter Size and Terminal Instruction

A diagram shows the dimensions of the microinverter: Width 188mm, Height 255mm, Depth 178mm. It also indicates connection points: A: AC Branch Connector, B: Antenna, C: DC terminal. The overall dimensions including the cable are shown as 557mm.

3. Installation

Each microinverter is installed on a mount just below the solar module panel. The low-voltage DC line on the panel side of the solar module can be directly connected to the microinverter, but it must be protected from direct sunlight, rain, snow, ultraviolet rays, etc. A clearance of at least 20mm should be left around the microinverter enclosure to ensure ventilation and heat dissipation.

  • The instructions in the manual must be followed when moving and placing the device.
  • Mishandling of equipment may result in minor, serious injury or contusion.
  • The cooling fins of the device must be left uncovered to ensure sufficient internal cooling of the device.

3.1 Microinverter System Installation Accessories

Accessories provided include: T-junction cable, T-junction bus end plug, M8*25 bolt (self-preparation), T-junction bus connector, T-junction removal tool, T-junction branch line port protection cover. Note: These accessories are not included in the product package and need to be purchased separately.

3.2 Customer Needs to Provide Tools

Tools required: Wire stripper, wire nippers, screwdriver, multimeter, marker, cable tie, dust mask, goggles, safety shoes, safety gloves, tape measure, hexagon wrench.

3.3 Installation Procedures

3.3.1 How to Make a T-Junction Bus

  • Nut tightening torque: 2.5±0.5N·m, Screw tightening torque: 0.8±0.1N·m. Do not over-tighten. Do not damage the sealing ring in the T-junction connector during assembly and disassembly.
  • Do not contact T-junction bus connectors with water directly.
  • Use a professional tool to uninstall the T-junction bus connector.

3.3.2 Microinverter Installation

  • Install the microinverter and all DC connections under the PV module to avoid direct sunlight, rain, and snow, etc.
  • Leave ≥ 20mm space between the microinverter and PV module for ventilation and heat dissipation.
  • Screw tightening torque: 9N·m, do not over-tighten.
  • Do not carry AC cables during transportation.

3.3.3 Connect Microinverter with T-junction

Insert the output AC feeder connector of the microinverter into the T-junction bus connector until hearing a "click" sound. Ensure that the installation is tight.

3.3.4 Connect PV module

  • Ensure that the output current and voltage of the PV modules are consistent with the inverter.
  • Operating DC voltage range of the PV module must be within the input voltage range of the microinverter.
  • The maximum Voc of the PV module shall not exceed the maximum input voltage of the microinverter.
  • DC output power of PV module shall not exceed 1.5 times that of the AC output power of the microinverter.

3.3.5 Draw Installation Map

Tear off the serial number label of the microinverter and affix the serial number label on the corresponding position according to the installation map for quick identification during maintenance.

A diagram shows a microinverter with its serial number label being placed onto a grid-based installation map.

3.3.6 Operate and Power On

3.3.7 Configure the Gateway

Step 1: Two ways of microinverter configure network.

Method 1: before login

Screenshots show the app interface for Wi-Fi configuration.

Method 2: After login

Screenshots show the app interface for Wi-Fi configuration after login.

Step 2: Choose Wi-Fi connection method, then Search for microinverter WiFi: MI-XXXXXXXXXXX, enter the Wi-Fi default password: 12345678.

Step 3: Choose nearby Wi-Fi and enter the password.

Step 4: Click "Start To Configure The Wi-Fi", wait to configure the network countdown.

  • If multiple devices need to be connected, repeat the same steps.

4. Fault Clearance

Only qualified professionals can implement the following troubleshooting operations when the microinverter solar system is not working properly.

4.1 Status indication and error reporting

4.1.1 Start indicator

When the DC side of the microinverter is powered on for the first time:

4.1.2 Operating indicator

Light Status Meaning Light Status Meaning
Green Light on Normal Red Light on Ground fault
Green Fast flashes (1s gap) Communication Fault Red Fast flashes (1s gap) Fault
Green Slow flashes (3s gap) PV input fault Red Fast flashes (2s gap) AC fault

4.1.3 Alarm Troubleshooting

Fault code Fault description Solution
3073 PLL Phase lock 1. It may be a short-time grid abnormality when occurs occasionally. It will resume work without manual intervention after the grid is normal.
2. Check AC connection when the fault occurs frequently.
3. Contact the distributor if the cable connection and power grid are normal.
3074
3075
PV1-PV4 Circuit undervoltage
PV1-PV4 Circuit overvoltage
1. If the input voltage is too high, ensure that the input voltage of PV module is not higher than the maximum input voltage of the microinverter.
2. If the input voltage is low or zero, ensure that the component is properly connected.
3. Contact the distributor if the component voltage is within the normal range.
3076 PV1-PV4 over-current 1. If the input current is too high, ensure that the input voltage of PV module is not higher than the maximum input voltage of the microinverter.
2. Contact the distributor if the component voltage is within the normal range.
3091 PV-1 & PV-2 terminal connection fault 1. Check if the terminal connect to the PV module.
2. Check if the port is properly connected if connection is fine.
3092 PV-3 & PV-4 terminal connection fault 1. Occasionally, it may be a short-term power grid abnormality. When the power grid is normal, it will resume work without manual intervention.
2. If all the microinverters in the power station have frequent islanding alarms, please contact the power bureau to confirm whether there is indeed an islanding phenomenon and solve it.
3. If the problem still cannot be solved, please try to contact the equipment manufacturer or dealer.
3082 Island protection 1. Check whether the wiring on the input side of the microinverter is normal.
2. Check whether the modules (junction box) are normal.
3083 Insulation resistance 1. Check whether the ambient temperature of the microinverter exceeds the maximum allowable temperature.
2. If the ambient temperature exceeds the allowable temperature, please improve the installation environment. If the environment is normal, please contact the dealer or equipment manufacturer.
3084 Device overheating 1. Occasionally, it may be a short-term power grid abnormality. When the power grid is normal, it will resume work without manual intervention.
2. If it occurs frequently, please confirm whether the grid voltage is normal. If the whole station alarms, please contact the local power bureau to solve the problem or adjust the instantaneous fluctuation limit of the grid voltage through the monitoring platform after obtaining the consent of the power bureau.
3086 The grid voltage fluctuates too much instantaneously 1. Occasionally, and the microinverter works normally without manual intervention.
2. It keeps appearing and cannot be recovered, the microinverter cannot work normally, Please contact your dealer or device.
3087
3088
3090
EEPROM data corruption
EEPROM data corruption
Flash data corruption
1. If the input DC current is too high, please ensure that the input photovoltaic module current is not higher than the maximum input current of the microinverter.
2. If the module current is within the normal range for three days and the microinverter does not work, please contact the dealer or equipment manufacturer.
3097
3098
3099
3100
PV1-PV4 Primary side hardware overcurrent
PV1-PV4 absorption capacity overvoltage
Inverter bridge 1 hardware overcurrent
Inverter bridge 2 hardware overcurrent
1. If the input DC voltage is too high, please ensure that the input photovoltaic module voltage flow is not higher than the maximum input voltage of the microinverter.
2. If the module voltage is within the normal range for three days and the microinverter does not work, please contact the dealer or equipment manufacturer.
3094 Remote shutdown 1. Confirm whether the anti-backflow is enabled.
2. If the anti-backflow is not enabled, please contact the dealer or equipment manufacturer.
/ Firmware error 1. Please confirm whether the upgraded firmware is correct, and re-upgrade.
2. Please confirm whether the communication between the microinverter and the platform is normal, and re-upgrade when connected to the grid.
3. If the fault still exists, please contact the equipment manufacturer or dealer.
/ Low power generation 1. If it occurs occasionally, it may be a short-term power grid abnormality. When the power grid is normal, it will resume work without manual intervention.
2. If all the microinverters in the power station have frequent islanding alarms, please contact the power bureau to confirm whether there is indeed an islanding phenomenon and solve it.
3. If the problem still cannot be solved, please try to contact the equipment manufacturer or dealer.

4.1.4 On-Site Inspection (qualified installers only)

If the microinverter fails, please troubleshoot according to the following steps:

DANGER:

  • Do not attempt to repair the microinverter; if troubleshooting fails, return it to the factory for a replacement.
  • Do not disassemble and repair the microinverter by yourself! In order to ensure safety and insulation performance, users are prohibited from repairing internal parts.
  • Do not replace the AC input harness (AC tap cable on the microinverter). If the wire is damaged, the equipment should be scrapped.
  • Unless otherwise specified, the connection between the equipment and the power grid (disconnect the power switch) must be cut off during maintenance, while shielding or isolating photovoltaic modules.
  • Do not use rags made of filamentous or corrosive materials to clean the equipment, otherwise it may cause corrosion or generate static electricity.
  • Do not repair the product without authorization. Qualified parts must be used for maintenance.
  • Each branch line should be equipped with a circuit breaker.

5. Maintenance Guide

5.1 Routine maintenance

  1. Only authorized personnel are allowed to perform maintenance operations and are responsible for reporting abnormal conditions.
  2. Wear personal protective equipment for maintenance operations.
  3. In normal operation, check the environment. Make sure that the environment does not meet the normal working requirements of the microinverter due to time changes, and ensure that the microinverter is not exposed to harsh weather and is not covered by foreign objects.
  4. Do not disassemble the microinverter or open the case for maintenance. In order to ensure safety and insulation integrity, the design of the microinverter does not allow the case to be opened for maintenance.

5.2 Microinverter Replacement

The following steps shall be followed when replacing the failed miniature inverter converter on site:

5.3 Storage and transport

In order to facilitate transportation and subsequent handling, HHYXIPOWER packaging adopts a special design to protect each component. When transporting equipment, especially by road, protect components from severe moisture, shocks, vibrations, etc.

After receiving the microinverter, please check whether the outer packaging is damaged. If the outer packaging appears damaged, call the carrier immediately.

After unpacking, please check whether the appearance of the inverter is damaged and whether the accessories are complete. In case of damage to the microinverter or missing parts, please contact the supplier or authorized dealer of Hxyi to apply for repair/replacement and consult the relevant procedures. The storage temperature of the microinverter should be maintained between -40° C to +85° C.

5.4 End-of-life Disposal

If the device is no longer in use or needs to be stored for a long time, please make sure that the packaging is intact. Store the device in a well-ventilated indoor area that will not cause damage to device components.

6. Human-Computer Interaction

6.1 Installing the App

Method 1

Method 2

Scan the following QR code to download and install the App according to the prompt information:

[QR code for app download]

6.2 APP User manual

For more information on using the HYXiPower APP, please refer to the user manual "HYXiPower APP".

6.3 System debugging

For system configuration and debugging, please refer to the user manual "HYXipower Local Debugging APP".

7. Appendix

7.1 Technical Specifications

Product Model HYX-M300-SW HYX-M400-SW HYX-M500-SW
General Data
Operating ambient temperature -40 to +65°C
Dimensions (W*H*D) 188*178*25mm
Enclosure rating IP67
Cooling Natural convection - No fans
Weight 1.66kg
Relative humidity 0-100% RH
Class of pollution PD3
Work environment Outdoor
Operating altitude 3000m
Features
Communication Built-in Wi-Fi
Monitoring Hyxi Cloud
Type of isolation Galvanically Isolated HF Transformer
Input (DC)
Typical module compatibility 240 - 450 W 360-600*W 400-700W
Min./Max. MPPT voltage 16-60V
Operating voltage range 16-60V
Max. input voltage 65V
Start-up input voltage 20V
Max. input current 16A
Max. short-circuit DC input current 20A
Number of MPP trackers 1
OVC category II
Max. backfilling current 0A
Output (AC)
Rated output power 300VA 400VA 500VA
Rated output current 1.30A 1.74A 2.17A
Rated output voltage 220/230/ 240 / 183~276V
Nominal frequency 50/45-55, 60 / 55 - 65Hz
Power factor (adjustable) >0.99 / 0.8 leading...0.8 lagging
THDI < 3%
Current (inrush) 1.8A
Max. output fault current 80A
Max. output overcurrent protection 14A
OVC category III
Protective class Class I
Max. current of AC cable 40A (10AWG), 30A (12AWG)
Efficiency
Peak efficiency 96.70%
Nominal MPPT efficiency 99.80%
CEC peak efficiency 96.30%
Night-time power loss < 30mW
Protection
Input reverse connection protection Yes
Output overcurrent protection Yes
Output overvoltage protection Yes
Anti-islanding protection Yes
Surge protection Type II

7.2 Wiring Diagram

Diagrams illustrate the wiring for 230VAC/400 VAC three-phase grounding and 230V single-phase grounding, showing connections between PV modules, microinverters, and a meter.

7.3 Installation Map

A template for a "Microinverter Installation Map" is provided, with fields for Sheet number, row/column labels (A, B, C, D), Azimuth, Tilt, Panel type, Customer Information, and DMU Serial No.

7.4 Contact Information

If you have any questions about this product, please contact HYXIPOWER. To provide faster and better after-sales service, please provide the following information:

Version: v1.0 2023

The manual is subject to change without notice while the product is being improved.

Zhejiang Hyxi Technology Co., Ltd.
9-10F, Building 3, Jiuyao Commercial Center, Zhuantang Sub-district,
Xihu District, Hangzhou, Zhejiang Province, China, 310008
support@hyxipower.com www.hyxipower.com

FCC Warning

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, pursuant to 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 in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

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

IC Warning

This device complies with Industry Canada's licence-exempt RSSs. Operation is subject to the following two conditions: (1) This device may not cause interference; and (2) This device must accept any interference, including interference that may cause undesired operation of the device.

This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.

Cet appareil est conforme aux CNR exemptes de licence d'Industrie Canada. Son fonctionnement est soumis aux deux conditions suivantes : (1) Ce dispositif ne peut causer d'interférences ; et (2) Ce dispositif doit accepter toute interférence, y compris les interférences qui peuvent causer un mauvais fonctionnement de l'appareil.

Ce matériel est complété par une exposition de rayonnements IC pour un environnement naturel. Ce matériel doit être installé et se faire avec une distance minimale de 20cm entre les radiateurs et les autres Your body shop.

Models: 1MSWG1 HYX 1 in 1 Micro Inverter, 1MSWG1, HYX 1 in 1 Micro Inverter, 1 Micro Inverter, Micro Inverter

File Info : application/pdf, 30 Pages, 2.78MB

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References

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