HYXIPOWER M300-SW User manual

User Manual
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M300/400/500-SW
MICRO
INVERTER

HYX-M300/400/500-SW User Manual
© 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.
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HYX-M300/400/500-SW User Manual Contents
Contents
1. Safety Instructions...........................................................................................................................................1
󵹂󵽤󵹂.................................................................................................................................................................1
󵹂󵽤󵹃 ...........................................................................................................................................................󵹃
󵹂󵽤󵹃󵽤󵹂......................................................................................................................................󵹃
󵹂󵽤󵹃󵽤󵹃.................................................................................................................................................................󵹃
󵹂󵽤󵹄..........................................................................................................................󵹃
2. Product Introduction...................................................................................................................................... 4
󵹃󵽤󵹂󵾧........................................................................................................................................4
󵹃󵽤󵹃 .......................................................................................................................................................................4
󵹃󵽤󵹄󵹂󵾧󵾧󵹂...........................................................................................................................................5
󵹃󵽤󵹅 .........................................................................................................................................5
󵹃󵽤󵹆...............................................................................................................................................................5
󵹃󵽤󵹇...........................................................................................................................󵹇
3. Installation......................................................................................................................................................... 7
󵹄󵽤󵹂 ......................................................................................................7
󵹄󵽤󵹃 .............................................................................................................................7
󵹄󵽤󵹄....................................................................................................................................................8
󵹄󵽤󵹄󵽤󵹂󵾧.................................................................................................................................8
󵹄󵽤󵹄󵽤󵹃............................................................................................................................................9
󵹄󵽤󵹄󵽤󵹄󵾧 ..............................................................................................................10
󵹄󵽤󵹄󵽤󵹅..................................................................................................................................................10
󵹄󵽤󵹄󵽤󵹆.................................................................................................................................................11
󵹄󵽤󵹄󵽤󵹇..............................................................................................................................................11
󵹄󵽤󵹄󵽤󵹈...............................................................................................................................................11
4. Fault Clearance...............................................................................................................................................13
󵹅󵽤󵹂 ......................................................................................................................13
󵹅󵽤󵹂󵽤󵹂..................................................................................................................................................................13
󵹅󵽤󵹂󵽤󵹃......................................................................................................................................................13
󵹅󵽤󵹂󵽤󵹄 ...............................................................................................................................................13
󵹅󵽤󵹂󵽤󵹅󵾧󵽯󵽰 ....................................................................................................󵹂󵹇
5. Maintenance Guide........................................................................................................................................17
󵹆󵽤󵹂 ...................................................................................................................................................... 17
󵹆󵽤󵹃......................................................................................................................................... 17
󵹆󵽤󵹄................................................................................................................................................... 17
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HYX-M300/400/500-SW User Manual
󵹆󵽤󵹅󵾱󵾱........................................................................................................................................................18
6. Human-Computer Interaction ....................................................................................................................19
󵹇󵽤󵹂Installing the App .............................................................................................................................................................19
󵹇󵽤󵹃.............................................................................................................................................................19
󵹇󵽤󵹄..........................................................................................................................................................19
7. Appendix ..........................................................................................................................................................20
󵹈󵽤󵹂 ................................................................................................................................................󵹃󵹁
󵹈󵽤󵹃 .................................................................................................................................................................󵹃󵹂
󵹈󵽤󵹄................................................................................................................................................................ 󵹃󵹃
󵹈󵽤󵹅 ....................................................................................................................................................... 󵹃󵹄
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Contents

HYX-M300/400/500-SW User Manual
1
1. Safety Instructions
HYX-M300-SW, HYX-M400-SW, HYX-M500-SW series microinverters can efficiently convert

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.
󵼝󵼝
󵼝
relevant skills. Installation, operation and maintenance must strictly follow the instructions
contained in this manual.
󵹂󵽤󵹂
• 󵼜
• 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
󵹉󵹁󶃴 󵼜
• 󵼝
grid must be disconnected first.
• If the microinverter does not work normally, contact after sales services of
󵼜
covered by warranty.
1. Safety Instructions

HYX-M300/400/500-SW User Manual
󵹃
󵹂󵽤󵹃
󵹂󵽤󵹃󵽤󵹂
• Indicates dangerous conditions that might cause fatal electric shock risk, serious
󵼜
•  󵼝
followed.
• This operation is prohibited, and relevant personnel should stop the operation.
󵹂󵽤󵹃󵽤󵹃
󵹂󵽤󵹄
󵼝
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:



 

󵼝󵹁󵽤󵹃󵼜

The high voltage generated by microinverter can endanger life.

The microinverter will generate heat during operation. Do not touch the metal
surface.

Read the user’s manual carefully before installation, operation and maintenance.

The microinverter meets EU low voltage standard.

Do not treat the microinverter as domestic garbage.
1. Safety Instructions

HYX-M300/400/500-SW User Manual
3
• 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.
1. Safety Instructions

HYX-M300/400/500-SW User Manual
4
2. Product Introduction
󵹃󵽤󵹂󵾧
󵾱󵾧󵹆󵹁󵹁󵾧󵼞
󵹃󵽤󵹃
HYX-M300-SW, HYX-M400-SW, HYX-M500-SW series are 1-in-1 microinverters, which can
󵼜󵾱󵾧
level monitoring function.
󵼝󵾱
󵼜󵾱
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
󵽯󵽰󵼝

array is arranged or when it encounters unsatisfactory conditions such as shadow occlusion,
dirt accumulation, illumination deviation or mismatch in practical application.
󵼝
and series inverters. Each microinverter transformer can be easily mounted on the rack below
󵼜󵾱󵾱󵼝
󵾱󵼜
󵼞
The operating data and working status of the inverter are transmitted through the wireless
󵼝󵾱
󵼜
󵹃󵼜

HYX-M300/400/500-SW User Manual
5
󵹃󵽤󵹄󵹂󵾧󵾧󵹂
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
󵹆󵹁󵹁󵼜󵼜
󵾱󵼝󵼝
and convenient maintenance features.
󵹃󵽤󵹅
HYX-M500-SW microinverter series adopts a new wifi wireless communication solution.
󵾧󵼞󵹃󵽤󵹅󵼝
󵾧󵹂󵼜
󵼜
󵹃󵽤󵹆
• Maximum output power 500W.
• 󵾱󵼝󵹊󵹇󵽤󵹈󶀡󵼜
• 󵹇󵹈󵼝󵹇󵹁󵹁󵹁󵼜
󵹂󵾧󵾧󵹂󵹃󵾧󵾧󵹂󵹅󵾧󵾧󵹂
󵹃󵼜

HYX-M300/400/500-SW User Manual
󵹇
󵹃󵽤󵹇
󵽒󵽒󵽒
󵹃󵼜

HYX-M300/400/500-SW User Manual
7
3. Installation
󵼜
󵾱
microinverter, but it must be protected from direct sunlight, rain, snow, ultraviolet rays, etc.
󵹃󵹁
ventilation and heat dissipation.
• The instructions in the manual must be followed when moving and placing the
device.
• 󵼝󵼜
• The cooling fins of the device must be left uncovered to ensure sufficient internal
cooling of the device.
󵹄󵽤󵹂
󵹄󵽤󵹃

Image 
󵾧
󵹉󵼨󵹃󵹆󵽯󵽰
󵾧
Image 
󵾧
󵾧
󵾧
protection cover
*The above accessories are not included in the product package and need to be purchased separately.
3. Installation

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8
󵹄󵽤󵹄
󵹄󵽤󵹄󵽤󵹂󵾧
•  󵹂󵼞   󵾧 
󵾱󵼜
• 󵹃󵽒󵾧󵼜
•
• 󵹄󵼞󵾧
Use the T-knot removal tool to remove the
lower cover.
Loosen the inner screw, unscrew the nut,
and remove the cable.
󵾧
󵾧󵼜
󵾧
place and make sure it is secure.
Prepare the AC cable by stripping the ends. 󵾧
connector at the correct hole position.
Tighten the screws, and then the nuts. 󵾧
place, making sure it is secure.
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• 󵹅󵼞󵾧
󵾧󵼜
• 󵽒󵹃󵽤󵹆󶀍󵹁󵽤󵹆󵼥󵽔󵽒󵹁󵽤󵹉󶀍󵹁󵽤󵹂󵼥󵽔
󵾱󵼝  󵾧 
assembly and disassembly.
• 󵾧󵼜
• 󵾧󵼜
󵹄󵽤󵹄󵽤󵹃
• Step 1: Mark the installation position of the microinverter on the bracket according
to the layout of the photovoltaic modules.
• 󵹃󵼞󵹉󵼨󵹃󵹆󵼝
screw(*The inverter indicator panel should face the bracket).
•   
direct sunlight, rain and snow, etc.
•  󶀋󵹃󵹁  
heat dissipation.
• 󵼞󵹊󵼥󵽔󵾱󵼜
• Do not carry AC cables during transportation.


3. Installation

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󵹄󵽤󵹄󵽤󵹄󵾧
󵾧
until hearing a "click" sound. Ensure that the installation is tight.
󵹄󵽤󵹄󵽤󵹅
• 󵹂󵼞󵼜
• 󵹃󵼞
microinverter.
• 
the inverter.
•    
range of the microinverter.
• 
of the microinverter .
•   󵹂󵽤󵹆 
power of the microinverter.

3. Installation

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󵹄󵽤󵹄󵽤󵹆
Tear off the serial number label of microinverter and affix serial number label on the

maintenance.
󵹄󵽤󵹄󵽤󵹇
• Step 1: Close the main grid circuit breaker.
• 󵹃󵼞󵼝
󵹃󵼜
• 󵹄󵼞󵼜
󵹄󵽤󵹄󵽤󵹈
Step 1: Two ways of microinverter configuer network
Method 1: before login
A: Open app and click the "More".
󵼞󵿂󵾧󵿂󵼜
3. Installation

HYX-M300/400/500-SW User Manual
󵹂󵹃
Method 2: After login
A: Log in to the app and click the "Me".
󵼞󵿂󵿂󵼜
󵼞󵿂󵾧󵿂
Step 2：󵾧󵼝󵼞󵾧
󵼝󵾧󵼞󵹂󵹃󵹄󵹅󵹆󵹇󵹈󵹉󵼜
Step 3：󵾧󵼜
Step 4：󵿂󵾧󵿂󵼝
countdown.
• If multiple devices need to be connected, repeat the same steps.

3. Installation

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13
4. Fault Clearance

micro inverter solar system is not working properly.
󵹅󵽤󵹂
󵹅󵽤󵹂󵽤󵹂
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.
󵹅󵽤󵹂󵽤󵹃
󵹅󵽤󵹂󵽤󵹄
  
3073 PLL Phase lock
󵹂󵼜󵾱
when occurs occasionally. It will resume work
without manual intervention after the grid is
normal.
󵹃󵼜
󵼜
3. Contact the distributor if the cable
connection and power grid are normal.
3074
3075
󵹂󵾧󵹅
󵹂󵾧󵹅
1. If the input voltage is too high, ensure that

than the maximum input voltage of the micro
inverter.
󵹃󵼜󵼝
that the component is properly connected.
3. Contact the distributor If the component
voltage is within the normal range.
󵹄󵹁󵹈󵹇 󵹂󵾧󵹅󵾱
1. If the input current is too high, ensure that

than the maximum input voltage of the micro
inverter.
󵹃󵼜
voltage is within the normal range.
󵹅󵼜
 Status 
Green

(1s gap) Normal
Slow flashes
(3s gap) 
Slow flashes
(5s gap) 
 Status 
Red
Light on Ground fault

(1s gap) 

󵽯󵹃󵽰 AC fault

HYX-M300/400/500-SW User Manual
14
  
3091
󵹄󵹁󵹊󵹃
󵾧󵹂󶃢󵾧󵹃
connection fault
󵾧󵹄󶃢󵾧󵹅
connection fault
󵹂󵼜
module.
󵹃󵼜
connection is fine.
󵹄󵹁󵹉󵹃 Island protection
󵹂󵼜󵼝󵾱
grid abnormality. When the power grid is
normal, it will resume work without manual
intervention.
󵹃󵼜
󵼝
the power bureau to confirm whether there is
indeed an islanding phenomenon and solve it.
3. If the problem still cannot be solved, please

dealer.
3083 Insultation resistance
1. Check whether the wiring on the input side
of the microinverter is normal.
󵹃󵼜󵽯󵽰
are normal.
3084 Device overheating
1. Check whether the ambient temperature
of the micro inverter exceeds the maximum
allowable temperature.
󵹃󵼜
allowable temperature, please improve the
installation environment. If the environment
is normal, please contact the dealer or
󵼜
󵹄󵹁󵹉󵹇 The grid voltage fluctuates
too much instantaneously
󵹂󵼜󵼝󵾱
grid abnormality. When the power grid is
normal, it will resume work without manual
intervention.
󵹃󵼜󵼝
whether the grid voltage is normal. If the
whole station alarms, please contact the local

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

1. Occasionally, and the microinverter works
normally without manual intervention.
󵹃󵼜
recovered, the microinverter cannot work
normally, Please contact your dealer or
device.
󵹅󵼜

HYX-M300/400/500-SW User Manual
15
  
3097 󵹂󵾧󵹅
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.
󵹃󵼜
range for three days and the microinverter
does not work, please contact the dealer or
󵼜
3098
3099
3100
󵹂󵾧󵹅
overvoltage
Inverter bridge 1 hardware
overcurrent
󵹃
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.
󵹃󵼜
range for three days and the microinverter
does not work, please contact the dealer or
󵼜
3094 Remote shutdown
󵹂󵼜󵾱
enabled.
󵹃󵼜󵾱󵼝

manufacturer.
/
1. Please confirm whether the upgraded
󵼝󵾱󵼜
󵹃󵼜
between the microinverter and the platform
󵼝󵾱
the grid.
3. If the fault still exists, please contact the
󵼜
/ 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.
󵹃󵼜󵾱
󵼝
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

dealer.
󵹅󵼜

HYX-M300/400/500-SW User Manual
󵹂󵹇
󵹅󵽤󵹂󵽤󵹅󵾧󵽯󵽰
If the microinverter fails, please troubleshoot according to the following steps:
• Step 1󵽒
specified in the technical parameter table of the user manual.
• 󵹃󵼞󵼜󵼝
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.
•  󵹇󵼞  
specified in the technical parameter table of the user manual.
• Step 7: If the problem persists, please call Hyxipower's customer support number.
󵼞
• 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 micro inverter ). If the
󵼝󵼜
• 󵼝
grid ( disconnect the power switch ) must be cut off during maintenance, while
shielding or isolating photovoltaic modules.
• 󵼝
otherwise it may cause corrosion or generate static electricity.
• 󵼜
maintenance.
• 󵼜
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