Sungrow COM100A User manual

COM100ACommunication BoxUser
ManualCOM100A-V22-UEN-Ver14-
202308M-H-001733
User Manual
Communication Box
COM100A
COM100A-V22-UEN-Ver14-202308

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All Rights Reserved
All Rights Reserved
No part of this document can be reproduced in any form or by any means without the prior
written permission of Sungrow Power Supply Co., Ltd (hereinafter "SUNGROW").
Trademarks
and other Sungrow trademarks used in this manual are owned by
SUNGROW.
All other trademarks or registered trademarks mentioned in this manual are owned by their
respective owners.
Software Licenses
• It is prohibited to use data contained in firmware or software developed by SUNGROW,
in part or in full, for commercial purposes by any means.
• It is prohibited to perform reverse engineering, cracking, or any other operations that
compromise the original program design of the software developed by SUNGROW.

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About This Manual
This manual gives instructions mainly on the transport, storage, installation, electrical
connection, and regular maintenance of the product, yet not all-encompassing regarding all
details. You may visit www. sungrowpower. com or the website of the equipment
manufacturer for more information.
Declaration
To ensure safe use of the product, please read through the below information carefully:
1 This manual is intended for personnel who are responsible for product installation or
other work on the product. Users must have certain electrical and mechanical expertise,
and be familiar with the electrical and mechanical schematics and the characteristics of
electronic components. SUNGROW shall not be held liable for any personal injury or
economic loss arising from the installation carried out by non-qualified personnel or not
in compliance with the safety instructions specified in this manual.
2 All pictures, marks, and symbols in this manual are owned by SUNGROW. No part of
this manual may be reproduced by any non-internal staff without the prior written
authorization of SUNGROW.
3 The manual may be updated and revised from time to time, however, there still might be
slight deviation from the real product or errors. In such cases, the actual product you
have purchased should take precedence. You can find the latest version of user manual
on the company's website, or reach your sales for it.
4 To ensure the safety of the installation personnel, the product, and the system, be sure
to follow the safety instructions specified in this manual when installing the product.
SUNGROW shall not be held liable for any personal injury or economic loss arising from
failure to follow the instructions specified in this manual.
5 If maintenance on or alteration to this product is needed, please contact SUNGROW
customer service in advance. The copyright of this user manual belongs to SUNGROW,
and any rights not expressly granted are reserved. The content herein is subject to
change without notice and may deviate from the actual up-to-date product.
Target Group
This manual is intended for qualified technical persons who are responsible for installation,
electrical connection, and other relevant work on the product.
Installation can only be done by qualified technical persons. Qualified technical persons
must:
• Have certain electrical wiring, electronic, and mechanical expertise, and be familiar with
electrical and mechanical schematics;
• Have received professional training in the installation and commissioning of electrical
equipment;
• Be able to respond quickly to dangers or emergencies that may occur during the process
of installation and commissioning;

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• Read through this manual carefully and have a good understanding of the relevant
safety instructions;
• Be familiar with applicable local standards and relevant safety regulations on electrical
systems.
How to Use This Manual
Read through this manual carefully before using the product, and keep it properly in an
easy-to-reach place.
The manual may be updated and revised from time to time, however, there still might be
slight deviation from the real product or errors. In such cases, the actual product you have
purchased should take precedence. You can find the latest version of the manual at
support.sungrowpower.com or reach your sales for it.
Symbols in the Manual
To ensure the safety of life and property for users when using the product and to improve the
efficiency of product use, the manual provides relevant safety information, which are
highlighted by the following symbols.
Symbols used in this manual are listed below. Please review carefully for better use of this
manual.
Indicates an imminently hazardous situation which, if not avoided, will result in
death or serious injury.
Indicates a moderately hazardous situation which, if not avoided, will result in
death or serious injury.
Indicates a slightly hazardous situation which, if not avoided, may result in minor
or moderate injury.
Indicates a potential hazard which, if not avoided, will result in device malfunction
or property damage.
Indicates supplementary information, emphasis on specific points, or tips related
to the use of the product that might help to solve your problems or save your time.

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Contents
All Rights Reserved .....................................................................................................I
About This Manual......................................................................................................II
1 Safety Instructions ............................................................................................1
1.1 Safety Signs on the Product ............................................................................1
1.2 General Safety Instructions .............................................................................2
1.3 Packaging, Transport, and Storage Safety........................................................4
1.4 Installation Safety ...........................................................................................5
1.5 Electrical Safety .............................................................................................7
1.6 Operation Safety ............................................................................................8
1.7 Maintenance Safety........................................................................................8
1.8 Disposal Safety ............................................................................................10
2 Product Description ........................................................................................ 11
2.1 Function Introduction .................................................................................... 11
2.2 Main Features .............................................................................................. 11
2.3 Dimensions.................................................................................................. 11
3 Mechanical Installation ..................................................................................13
3.1 Installation Notices .......................................................................................13
3.2 Inspection before Installation .........................................................................13
3.3 Location Requirements .................................................................................14
3.4 Installation Method .......................................................................................14
3.4.1 Wall Mounting.....................................................................................15
3.4.2 Ground Mounting ................................................................................16
3.4.3 Pole Mounting (optional) ......................................................................17
4 Electrical Connection .....................................................................................18
4.1 Electrical Connection Notices ........................................................................18
4.2 Waterproof Terminal Description ....................................................................19
4.3 Internal Structure..........................................................................................19
4.4 Preparation Before Connection......................................................................21
4.5 Electrical Connection Steps...........................................................................22
4.5.1 Grounding ..........................................................................................22
4.5.2 RS485 Communication Terminal Connection ........................................24

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4.5.3 Optical Fibre (Optional)........................................................................25
4.5.4 AC 220V Connection...........................................................................26
4.5.5 PLC Port Connection...........................................................................27
4.6 Communication Methods ..............................................................................30
5 Commissioning ...............................................................................................31
5.1 Operation Notices.........................................................................................31
5.2 Inspection before Commissioning ..................................................................31
5.3 Commissioning Steps ...................................................................................31
6 Troubleshooting and Maintenance ..............................................................33
6.1 Maintenance Notices ....................................................................................33
6.2 Troubleshooting ...........................................................................................33
7 Appendix A: Related Parameters ................................................................35
8 Appendix B: General Information .................................................................36
8.1 Quality Assurance ........................................................................................36
8.2 Contact Information ......................................................................................36

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1Safety Instructions
Be sure to read through this manual carefully before proceeding with the transport, storage,
installation, operation, use, and maintenance of the device. All work should be done by
strictly following the safety instructions mentioned in this manual to ensure the personnel
safety. Improper use or misoperation may result in:
• Injury to or death of the operator or other people;
• Damage to the device or the property of the operator or other people.
• Safety instructions in this manual should only serve as a supplement and not
all-encompassing regarding all the norms that need to be followed. All work
should be carried out considering the actual situation on the site.
• SUNGROW shall not be held liable for damages caused by violation of safe
operation requirements, general safety standards, and safety instructions in
this manual.
1.1 Safety Signs on the Product
Signs on the Product
Observe all warning signs on the product at all times, which are:
Symbol Description
High voltage inside. Risk of electrical shock hazard when it is
touched.
PE (Protective Earthing) terminal, which should be grounded properly
to ensure the safety of operators.
Labels Inside the Product
Observe all labels inside the product at all times, which are:
Symbol Description
Warning Electric Shock.
Must wear insulated protection supplies.

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1.2 General Safety Instructions
Compliance with Laws and Regulations
All work, including transport, storage, installation, operation, use, and mainte-
nance, should be done in compliance with the local laws, regulations, standards,
and specifications.
Personnel Requirements
Persons who perform operations on the device must meet the following
requirements:
• Have received professional training in the installation and commissioning of
electrical equipment, and have the necessary experience;
• Be able to respond quickly to dangers or emergencies that may occur during
the process of installation and commissioning;
• Persons, who are responsible for device installation and maintenance, must be
trained thoroughly and have a firm grasp of the correct operation methods and
a good knowledge of safety precautions and applicable local standards of the
country/region;
• Persons responsible for special types of work (e.g. electrical operations, work-
ing at heights) must have relevant qualifications as required by the local regula-
tions of the country/region.
• Do not wear any conductive object, such as watches, bracelets, bangles, rings,
and necklaces, during the operation process, so as to avoid electrical burns.
• Do not smoke in the area where the device is located, so as to prevent fires,
electric shocks, and explosions, which may result in personal injuries or prop-
erty damages.
Use specialized insulated tools during operation to avoid electric shock hazards or
short circuits. The tools should have an insulation withstand voltage rating that
meets the requirements of the applicable local laws, regulations, standards, and
specifications.
1 Safety Instructions User Manual