HYXIPOWER 1MSWG1 HYX 1 in 1 Micro Inverter User Manual

HYXIPOWER 1MSWG1 HYX 1 in 1 Micro Inverter

2023 ZHEJIANG HYXI TECHNOLOGY CO., LTD. All rights reserved. This document cannot be copied fully or partially, transferred, or distributed in any form without the prior written permission of ZHEJIANG HYXI TECHNOLOGY CO., LTD ( hereinafter referred to as “HYXIPOWER” ).

TRADEMARKS

and other HYXIPOWER trademarks are the trademarks or registered trademarks of HYXIPOWER All other trademarks mentioned herein are the properties of their respective owners

Safety Instructions

HYX-M300-SW, HYX-M400-SW, and HYX-M500-SW series microinverters can 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:

• Life and personal safety of operators or third parties.
• Other property of the operators or third parties.

Important Safeguards and Warnings

To ensure the installation and operation safety of 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.

Safety Instruction

• Only qualified professionals can install and replace the microinverter.
• The electrical installation of microinverter must comply with local electrical regulations.
• Read all instructions and warning signs in this manual before installing and using the microinverter.
• To avoid scalding, do not directly contact the shell of the microinverter, and the shell temperature can reach 80 ℃ .
• Before disconnecting the microinverter from the solar module, the AC side power grid must be disconnected first.
• If the microinverter does not work normally, contact after sales services of HYXIPOWER. Unauthorized destruction or opening of the microinverter will not be covered by warranty.

Symbol Description

Symbols Used in the Manual

DA NGER

• 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.

NO TICE

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

Other Symbols

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 the radio, take the following measures to eliminate the influence:

• Relocate the receiving antenna away from other devices.
• ncrease the distance between the microinverter and the antenna.
• Use metal or concrete materials to separate the microinverter from the antenna.
• Consult a local supplier or skilled radio technician.

Product Introduction

Photovoltaic On-Grid System

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

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, a photovoltaic on-grid power generation system and a photovoltaic monitoring system. photovoltaic on-grid power generation system includes photovoltaic modules, micro inverter, AC cable and other accessories. Microinverter is the core product of 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 photovoltaic system no matter 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 micro-inverter, 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 .

1-in-1 Microinverter System

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

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

Communication Technology

HYX-M500-SW microinverter series adopts a new wifi 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 Hxyi Cloud.

Product Features

• Maximum output power 500W.
• Module-level MPPT, the peak conversion efficiency reaches 96.7%.
• IP67 enclosure, 6000V surge protection for higher reliability.

Inverter Size and Terminal Instruction

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.

CAUTION

• 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.

Mircoinverter System Installation Accessories

• The above accessories are not included in the product package and need to be purchased separately.

Customer Needs to Provide Tools

Installation Procedures

How to Make a T-Junction Bus

• Step 1: Prepare several sections of T-junction connecting wires according to the number of micro-inverters to be installed on site.
• Step 2：Removing the T-junction cable at the end.
  • Use the T-knot removal tool to remove the lower cover.
  • Loosen the inner screw, unscrew the nut, and remove the cable.
  • Install a T-junction bus end plug at the end of the T-junction.
  • Insert the lower T-junction cover back into place and make sure it is secure.
• Step 3: T-junction and bus connection
  • Prepare the AC cable by stripping the ends
  • Insert the AC cable into the T-junction connector at the correct hole position.
  • Tighten the screws, and then the nuts.
  • Insert the lower T-junction cover back into place, making sure it is secure.
• Step 4: Secure the T-junction cable
  • Put the T-junction connecting wire on the guide rail and fix it with cable tie.

CAUTION

• 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.

Microinverter Installation

• Step 1: Mark the installation position of the microinverter on the bracket according to the layout of the photovoltaic modules.
• Step 2: Fix the microinverter on the bracket with M825 screw, then lock the screw(The inverter indicator panel should face the bracket).

CAUTION

• Install the microinverter and all DC connections under the PV module to avoid direct sunlight, rain 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.

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.

Connect PV module

• Step 1: Install the PV module above the microinverter.
• Step 2: Connect the DC output cable of the PV module with the input side of the microinverter.

CAUTION

• Ensure that the output current and voltage of the PV modules are consistent with the inverter.
• The 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.

Draw Installation Map

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

Operate and Power On

• Step 1: Close the main grid circuit breaker.
• Step 2: Close the AC circuit breaker of each microinverter branch, and the system will automatically generate power after about 2 minutes.
• Step 3: Set up a monitoring system on the Hyxipower Smart PV Cloud Platform.

Configure the Gateway

• Step 1: Two ways of microinverter configuer network

Method 1: before login

• A: Open the app and click “More”.
• B: Click the “Wi-Fi Config”.

Method 2: After login

• A: Log in to the app and click the “Me”.
• B: Click the “Tool”.
• C: Click the “Wi-Fi Config”
• 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.

CAUTION

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

Fault Clearance

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

Status indication and error reporting

Start indicator

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

• The green lights blinks briefly indicates startup success.
• The red lights blinks briefly indicates startup failure.

Operating indicator

Green

| Fast flashes

(1s gap)

| Normal
Slow flashes

(3s gap)

| Communication Fault
Slow flashes

(5s gap)

| PV input fault
Light| Status| Meaning
---|---|---

Red

| Light on| Ground fault
Fast flashes

(1s gap)

| Fault
Fast flashes (2s gap)| AC fault

Alarm Troubleshooting

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 micro inverter.

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 micro inverter.

2.   Contact the distributor If the component

voltage is within the normal range.

3091

3092

| PV-1 & PV-2 terminal

connection fault

PV-3 & PV-4 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.

3082

| ****

Island protection

| 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.

3083

| ****

Insultation resistance

| 1.  Check whether the wiring on the input side of the microinverter is normal.

2.   Check whether the modules (junction box)

are normal.

3084

| ****

Device overheating

| 1.  Check whether the ambient temperature of the micro inverter 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.

3086

| ****

The grid voltage fluctuates too much instantaneously

| 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.

3087

3088

3090

| ****

EEPROM data corruption EEPROM data corruption Flash data corruption

| 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.

3097

| ****

PV1-PV4 Primary side

hardware overcurrent

| 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.

3098

3099

3100

| ****

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 micro-inverters 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.

On-Site Inspection (qualified installers only)

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

• Step 1：Verify whether the grid voltage and frequency are within the range specified in the technical parameter table of the user manual.
• Step 2: Check the connection to the grid. Disconnect the AC side first, then the DC side. When the inverter is still working, it is forbidden to disconnect its DC side connection. Reconnect the DC side and observe whether the indicator light flashes green briefly three times.
• Step 3: Check the connection of each microinverter in the AC branch, and confirm whether each microinverter is powered by the public grid.
• Step 4: Make sure that each AC circuit breaker is functioning normally and is in a closed state.
• Step 5: Check the connection between the micro inverter and the DC side of the solar module.
• Step 6: Verify whether the DC voltage of the solar module is within the range specified in the technical parameter table of the user manual.
• Step 7: If the problem persists, please call Hyxipower’s customer support number.

Precautions for routine maintenance:

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.

CAUTION

• Do not replace the AC input harness ( AC tap cable on the micro inverter ). 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.

NOTICE

• Each branch line should be equipped with a circuit breaker.

Maintenance Guide

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 micro inverter 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.

Microinverter Replacement

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

• Step 1: Disconnect the power supply of the branch circuit AC side circuit breaker.
• Step 2: Disconnect the AC bus from the AC connector of the inverter.
• Step 3: Remove the PV modules from the rack.
• Step 4: Use the DC disconnect tool to disconnect the solar module and the DC connector of the microinverter.
• Step 5: Use the AC disconnect tool to disconnect the AC connectors of the failed microinverter and the adjacent microinverter.
• Step 6: Unscrew the fixing screws on the top of the micro-inverter and remove the device from the PV rack.
• Step 7: Install the new microinverter on the rack, and observe the blinking of the indicator light when the DC line is reconnected.
• Step 8: Connect the replacement microinverter’s AC cables to the AC bus.
• Step 9: Close the branch circuit breaker to verify the operation of the replacement microinverter transformer.

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.

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.

• When restarting equipment that has been out of service for a long time, a complete inspection of the equipment must be carried out.
• Capacitors, modules and other components contained in the micro inverter will pollute the environment, please dispose of them according to local regulations and laws.

Human-Computer Interaction

Installing the App

Method 1

Download and install the App through the following application stores:

• App Store (iOS).
• Google App market (Android, users other than mainland China ones).

Method 2

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

APP User manual

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

System debugging

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

Appendix

Technical Specifications

Input (DC)
Typical module compatibility| 240 – 450 ⁺ W| 360 – 600 ⁺ W| 400 – 700 ⁺ W
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 categorie| 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 categorie| Ⅲ
Protective class| Class Ⅰ
Max. current of AC cable| 40A（10AWG）, 30A（12AWG）
Efficieny
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
Product Model| HYX-M300-SW| HYX-M400-SW| HYX-M500-SW
---|---|---|---
General Data
Operating ambient temperature| -40 to +65℃
Dimensions (WHD)| 18817825mm
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 WiFi
Monitoring| Hyxi Cloud
Type of isolation| Galvanically Isolated HF Transformer

Wiring Diagram

Installation Map

Contact Information

If you have any questions about this product, please contact us !
In order to provide you with faster and better after-sales service, we need your assistance to provide the following information:

• Device model：
• Devise serial number：
• Fault code/name：
• Brief description of the fault phenomenon：

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 Statement

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:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into 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.

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.

References

• hyxipower.com

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