Sungrow EyeM4 Wireless Communication Module User Manual

About This Manual

This manual is intended for the wireless communication module researched and manufactured by Sungrow Power Supply Co., Ltd. It provides detailed information on the module's installation, operation, and maintenance.

Intended Use

To provide users with detailed information on the wireless communication module, including installation, operation, and maintenance.

Related Documents

For more information, visit www.sungrowpower.com or the manufacturer's website.

Target Group

Technically qualified personnel for installation, operation, and maintenance, and end users monitoring plant information via the iSolarCloud APP.

How to Use This Manual

Read this manual and other related documents before performing any work. Store documents carefully for future reference. Manual contents may be updated due to product development.

Symbols

• DANGER: Indicates a hazard with a high level of risk. Failure to avoid could result in death or serious injury.
• WARNING: Indicates a hazard with a medium level of risk. Failure to avoid could result in death or serious injury.
• CAUTION: Indicates a hazard with a low level of risk. Failure to avoid could result in minor or moderate injury.
• NOTICE: Indicates a situation that, if not avoided, could result in equipment or property damage.
• i (Information): Indicates additional information, emphasized content, or tips.

1 Safety Instructions

The wireless communication module is designed and tested according to international safety regulations. Read and follow all safety instructions carefully before and during any work with the module.

Incorrect operation may cause:

• Injury or death to the operator or a third party.
• Damage to the inverter and other property.

WARNING: All installations must be performed by technically qualified personnel who have been trained, have read this manual, and are familiar with electrical safety.

Qualified personnel can perform:

• Installation of the wireless communication module to the inverter.
• Commissioning of the wireless communication module.
• Operation and maintenance of the wireless communication module.

Before Installation

NOTICE: Upon receiving, check the wireless communication module for transport damage. If damaged, contact SUNGROW or the forwarding company.

Risk of Injury

CAUTION: Always observe instructions when moving or placing the module. Incorrect operations can cause minor to serious injury or bruises.

Mechanical Installation

CAUTION: Poor ventilation compromises system performance. Ensure the device is well-ventilated and cooled during operation.

Electrical Connection

NOTICE: All electrical connections must comply with local and national regulations.

During Operation

WARNING: Never remove the wireless communication module if it is running or carries voltage.

CAUTION: Never touch hot components when the module is running.

Unauthorized Access

CAUTION: Keep unauthorized persons away. Place warning signs before electrical work to prevent access to the operating area.

Maintenance and Service

NOTICE: Restart the module only after faults are cleared. No serviceable components are inside; contact SUNGROW for maintenance.

NOTICE: Never replace internal components without permission. SUNGROW is not liable for damage caused by unauthorized replacements.

NOTICE: Components are sensitive to ESD. Avoid touching the PCB unnecessarily and respect ESD protection standards (e.g., wear a wrist strap).

Labels and Nameplates

WARNING: Ensure all warning labels and nameplates are clearly legible and not removed or covered.

Other Safety Items

WARNING: Observe grid connection rules and safety descriptions of other electrical devices.

2 Product Description

2.1 System Diagram

The wireless communication module obtains inverter information and transmits data to a remote server. The following diagrams illustrate typical applications:

• Fig. 2-1 Application (WLAN): Shows data flow from Inverter via EyeM4 (Wireless signal) to Router, then to iSolarCloud, and finally to the iSolarCloud management platform (Ethernet) and APP (Wireless signal).
• Fig. 2-2 Application (4G): Shows data flow from Inverter via EyeM4 (Wireless signal) to a Communication base station, then to iSolarCloud, and finally to the Remote monitoring platform (Ethernet) and APP (Wireless signal).
• Fig. 2-3 Application (4G+WLAN): Shows data flow from Inverter via EyeM4 (Wireless signal) to a Communication base station (GPRS/WLAN), then to iSolarCloud, and finally to the Remote monitoring platform (Ethernet) and APP (Wireless signal). A PC (WEB page) can also connect via Wireless signal.

2.2 Wireless Communication Module

2.2.1 Product Appearance

The module features an indicator (1) for running state and an RJ45 connector (2) for connecting to the inverter. The appearance shown is for reference and may differ.

Ensure the module is free of visible damage before proceeding.

INFO: After home router configuration, it takes about 10 minutes for the inverter Wi-Fi signal to connect to the data server.

2.2.2 Principle Description

The module connects to the inverter via the RS485 interface to collect running data, which is then transmitted to a remote server using Wi-Fi.

2.2.3 Function Description

• Data collection: Stores system information, running data, and fault records.
• Communication interface: RS485, Baud rate 9600, null check bit, 8 data bits, 1 stop bit.
• Remote management: Periodically connects to the iSolarCloud server to transmit data.

3 Installation Flow

The overall installation process is as follows:

1. Unpack and check the module.
2. Read the user manual, especially the safety instructions.
3. If not installing immediately, store the module properly (refer to Section 4.4).
4. Select the optimal installation location (refer to Section 5.1).
5. Install the wireless communication module (refer to Section 5.2).
6. Perform electrical connection (refer to Sections 6.1-6.2).
7. Conduct inspection before commissioning (refer to Section 7.1).
8. Commission the module (refer to Section 7.2).
9. If issues arise, proceed to troubleshooting (refer to Section 9.1).

4 Unpacking and Storage

4.1 Unpacking and Inspection

The module is inspected before delivery but may be damaged during transport. Check carefully upon receiving:

• Check the packing case for damage.
• Check the scope of delivery against the packing list for completeness.
• Check the device inside the packing case for intactness and freedom from damage.

If damage is found, contact the forwarding company or SUNGROW, providing a picture of the damage for quicker service.

Do not dispose of the original packing case; it is recommended for storing the module.

4.2 Nameplate

The nameplate on the module side provides information such as product model and manufacturer. It includes details like Model: EyeM4, Power Supply: IN DC 4.75-5.25V, Max. 2.1A, Temperature: -30-60°C, Enclosure: IP66, and manufacturer information (SUNGROW POWER SUPPLY CO.,LTD, Made in China).

Icon Description:

• Icon: [Three horizontal bars] Description: Direct current
• Icon: IP66 Description: (IP: INGRESS PROTECTION) IP66 means the product completely prevents foreign matter entry and dust. It can withstand strong water spray without harmful water intake.

4.3 Scope of Delivery

The package includes:

• Item A: Wireless communication module (for uploading inverter data).
• Item B: Document (Quick installation guide).

4.4 Storage

Store the module in a proper environment if not installed immediately to prevent rust or internal component damage. SUNGROW is not liable for damage caused by improper storage.

• Store in the original packing case with desiccant.
• Seal the packing case with adhesive tape.
• Store in a clean, dry place with dustproof and waterproof measures.
• Storage temperature: -40°C to 85°C.
• Relative humidity: 5% to 95% (non-condensing).
• Store away from chemically corrosive materials.
• Regularly check the module during storage (recommended every six months) and replace packing material if necessary.
• Ensure the packing case remains upright.

5 Mechanical Installation

5.1 Installation Location

The wireless communication module is installed at the inverter bottom. It is IP66 rated, allowing installation indoors and outdoors. The ambient temperature range is -30°C to 60°C, with permissible relative humidity of 0-95% (non-condensing).

5.2 Installation

5.2.1 Preparation before Installation

• Adapter inverter: Compatible with single-phase residential and three-phase string inverters manufactured by SUNGROW.
• Ensure the inverter is correctly installed and powered on at the DC side (refer to the inverter's user manual for details).

5.2.2 Installation Steps

1. Step 1: Take out the wireless communication module from the packing case and identify the correct connection method.
2. Step 2: Insert the module into the network port (COM) at the inverter's bottom until it clicks. If loose, remove, check the port for damage, and reinsert. The module can be plugged/unplugged without switching off the inverter.
3. Step 3: For multiple inverters, connect them in a daisy chain using RS485 communication cables as per the user manual. Ensure the shielding layer is grounded.
4. Step 4: After installation, the module will automatically communicate with the inverter once powered on.

INFO: Press buckles on both sides to plug/unplug. Frequent plugging/unplugging is not recommended. For replacement during operation, use the iSolarCloud App.

6 Commissioning

6.1 Inspection Before Commissioning

Before starting the module for the first time, check the following:

1. Environment: Module installed in a convenient location for operation and maintenance.
2. Ensure the module is firmly in place.
3. Installation environment is well-ventilated.
4. Module is correctly connected to the inverter.
5. Cables are routed properly and protected against mechanical damage.
6. Inverter has a correct SN number (product serial number).

6.2 Commissioning Steps

Once all inspection items are met, start the module:

1. Connect the AC circuit breakers.
2. Connect the DC switches of the inverter.
3. When sunlight is sufficient, the PV panel supplies DC power. The inverter starts automatically when DC voltage exceeds its start voltage.
4. Wait approximately 15 seconds for the wireless communication module to start automatically.
5. Download the iSolarCloud APP and configure parameters for the connected inverter. Refer to the quick operation guide for details.

7 Removing and Disposing

7.1 Removal

Remove the module by reversing the installation steps. To unplug:

1. Press and hold the buckles on both sides of the module and unplug from the RJ45 interface.
2. Pack the module in its original case and seal the RJ45 interface at the inverter bottom with the provided waterproof plug.

NOTICE: If the module will be used later, store it properly as described in Section 4.4.

7.2 Disposal

Dispose of the module properly at the end of its service life. It contains components like LED indicators that may cause environmental pollution. Follow related regulations for disposal.

8 Appendix

8.1 Technical Information

Communication

• Max. number of devices: 10
• LED display: LED x 3

Wireless communication

• 4G communication: LTE(FDD): B1, B3, B5, B8; LTE(TDD): B38, B39, B40, B41; TD-SCDMA: B34, B39; CDMA: BCO; GSM: 900MHz / 1800MHz; WCDMA: B1, B8.
• WiFi communication: 802.11b/g/n/ac; HT20/40/80 MHz; 2.4 GHz / 5 GHz.

Power Supply

• DC input: 5 Vdc, 0.8 A
• Power consumption: <4 W

Ambient conditions

• Operating Temperature: -30 °C ~ 60 °C
• Relative air humidity: ≤95% (non-condensing)
• Elevation: ≤4000 m
• Protection class: IP66

Mechanical parameters

• Dimensions (W x H x D): 48 mm x 130 mm x 36 mm
• Mounting type: Plug and Play

8.2 Transmitting Power

8.3 Transmitting frequency

8.4 Quality Assurance

Sungrow provides free service or product replacement for faults occurring during the warranty period.

Evidence

During the warranty period, customers must provide the product purchase invoice and date. The product trademark must be undamaged and legible. Otherwise, Sungrow may refuse warranty service.

Conditions

• Unqualified products after replacement will be processed by Sungrow.
• Customers must allow Sungrow a reasonable period to repair faulty devices.

Exclusion of Liability

Sungrow may refuse warranty service under the following circumstances:

• The free warranty period has expired.
• The device was damaged during transport.
• The device was incorrectly installed, refitted, or used.
• The device operates in harsh environments as described in this manual.
• Faults or damage caused by installation, repairs, modification, or disassembly by unauthorized personnel.
• Faults or damage caused by the use of non-standard or non-Sungrow components or software.
• Installation and use range exceed relevant international standards.
• Damage caused by unexpected natural factors.

For faulty products in the above cases, paid maintenance service may be provided based on Sungrow's judgment.

8.5 Contact Information

For any questions, contact Sungrow. Please provide the following information for assistance:

• Type of the device
• Serial number of the device
• Fault code/name
• Brief description of the problem

China (HQ)

Sungrow Power Supply Co., Ltd, Hefei

+86 551 65327834

service@sungrowpower.com

Australia

Sungrow Australia Group Pty. Ltd., Sydney

+61 2 9922 1522

service@sungrowpower.com.au

Brazil

SungrowDo Brasil, Sao Paulo

+55 11 2366 1957

latam.service@sa.sungrowpower.com

France

Sungrow France - Siege Social, Paris

service.france@sungrow.co

Germany

Sungrow Deutschland GmbH, München

+49 89 324 914 761

service.germany@sungrow.co

Greece

Service Partner – Survey Digital

+30 2106044212

service.greece@sungrow.co

India

Sungrow (India) Private Limited, Gurgaon

+9108041201350

service@in.sungrowpower.com

Italy

Sungrow Italy, Milano

service.italy@sungrow.co

Japan

Sungrow Japan K.K., Tokyo

+81 3 6262 9917

japanservice@jp.sungrowpower.com

Korea

Sungrow Power Korea Limited, Seoul

+827077191889

service@kr.sungrowpower.com

Malaysia

Sungrow SEA, Selangor Darul Ehsan

+6019897 3360

service@my.sungrowpower.com

Philippines

Sungrow Power Supply Co., Ltd, Mandaluyong City

+639173022769

service@ph.sungrowpower.com

Spain

Sungrow Ibérica S.L.U., Navarra

service.spain@sungrow.co

Thailand

SungrowThailand Co., Ltd., Bangkok

+66891246053

service@th.sungrowpower.com

Turkey

Sungrow Deutschland GmbH Turkey Istanbul Representative Bureau, Istanbul

+90 2127318883

service.turkey@sungrow.co

UK

Sungrow Power UK Ltd., Milton Keynes

+44 (0) 0908 414127

service.uk@sungrow.co

U.S.A, Mexico

Sungrow USA Corporation, Phoenix Arizona

+1833 7476937

techsupport@sungrow-na.com

Vietnam

Sungrow Vietnam, Hanoi

+84 918 402 140

service@vn.sungrowpower.com