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Summary of Contents for Hoymiles DTU-WLite
- Page 1 Open Energy for All Data Transfer Unit USER MANUAL DTU-WLite Region: Europe V202505 hoymiles.com...
- Page 2 3.2 Basic Conditions Required 3.3 Dimensions 3.4 Interface Layout 3.5 Local Installation Assistant 3.6 System Installation Sequence 3.7 DTU Installation Procedure 4. Plant Creation on S-Miles Cloud Customer Login Plant Data Viewing 7. LED Indicator Status Troubleshooting Datasheet 10. Appendix: Regulatory Compliance Statement © 2025 Hoymiles Power Electronics Inc. All rights reserved.
- Page 3 This manual is intended for use by professional installation and maintenance personnel only. Contact Information If you have technical queries concerning our products, contact your system installer or distributor. If further support is required, contact Hoymiles’ support at www.hoymiles.com. Other Information Product information is subject to change without notice. The user manual will be frequently updated, refer to the Hoymiles official website at www.hoymiles.com for the latest version. © 2025 Hoymiles Power Electronics Inc. All rights reserved.
- Page 4 The DTU The DTU is a key component in the Hoymiles microinverter system. It works as the communication gateway between the Hoymiles microinverters and the S-Miles Cloud (Hoymiles Monitoring Platform). The DTU communicates wirelessly with the microinverters via 2.4 GHz Proprietary RF (Nordic), and collects the operation data of the system. Meanwhile, the DTU connects to the Internet via the router and communicates with the S-Miles Cloud. The microinverter system operation data will be uploaded to the S-Miles Cloud via DTU. The S-Miles Cloud (Hoymiles Monitoring Platform) It collects the operation data and status of the microinverters in the system and provides module-level monitoring for users and maintenance staff. The following diagram shows the operation of the Hoymiles Microinverter System. Microinverter S-Miles Cloud © 2025 Hoymiles Power Electronics Inc. All rights reserved.
- Page 5 Environmental requirements for DTU installation: • Away from dust, liquid, acids, or corrosive gas. • The temperature should be between -20ºC and 55ºC. Dimensions Interface Layout Item Description USB Connector Status Indicator Reset Bottom Local Installation Assistant The Local Installation Assistant is a new function integrated with the DTU-WLite. Download the S-Miles Cloud Installer App before use. The DTU-WLite is improved over the previous generations of DTU product, and is developed with this new function © 2025 Hoymiles Power Electronics Inc. All rights reserved.
- Page 6 Up to 100% Therefore, the DTU must be placed as close to the microinverters as possible at the site to ensure good communication between the DTU and the microinverters. 3) Install the DTU. © 2025 Hoymiles Power Electronics Inc. All rights reserved.
- Page 7 4) Power on the DTU. Once the DTU is powered on, the indicator will flash red, green, and blue lights in turn for 30 seconds. 5) Complete the installation map. Peel the serial number label from the DTU and place it on the installation map. Complete the installation map. © 2025 Hoymiles Power Electronics Inc. All rights reserved.
- Page 8 • The DTU’s network name includes “DTU/DTUP/DTUL” followed by the last eight digits of the product SN, and is password-free by default. • Set the router to 2.4 GHz band. Do not enable 5 GHz band. Open and log in to S-Miles Installer using your credentials. > Network Config Follow the prompts to configure the network connection. © 2025 Hoymiles Power Electronics Inc. All rights reserved.
- Page 9 Wait about 5 minutes for the data to be uploaded. Then customers will be able to view all details. Note: Customers can also view the microinverter details on S-Miles Cloud Web at global.hoymiles.com. © 2025 Hoymiles Power Electronics Inc. All rights reserved.
- Page 10 Search for the desired plant name and tap it to move to the plant homepage. HM-5 Viewing on the Web Go to global.hoymiles.com. Click Plant in the navigation bar. Find the target plant and click its name to enter the plant dashboard. © 2025 Hoymiles Power Electronics Inc. All rights reserved.
- Page 11 • If the DTU is connected to Wi-Fi, and the blue indicator lights up, you can create the plant. • If the DTU is not connected to Wi-Fi, and the indicator alternates red and blue flashes, connect the DTU to the Wi-Fi again. © 2025 Hoymiles Power Electronics Inc. All rights reserved.
- Page 12 Dimensions (W × H × D [mm]) 143 × 33 × 12.5 Weight (g) Installation option Direct plug-in Compliance Certificate Microinverter Compatibility Microinverter models HM series, MI series * This depends on the installation environment. © 2025 Hoymiles Power Electronics Inc. All rights reserved.
- Page 13 This product complies with the following EU directives and can be used without restrictions in the European Union: • Directive 2014/53/EU (RED) and 2009/125/EC: Relating to the provision of electrical equipment within certain voltage limits on the market (Low Voltage Directive). • Directive 2011/65/EU and 2015/863/EU (RoHS): Restricting the use of certain hazardous substances in electrical and electronic equipment. The user manual and full text of the EU Declaration of Conformity (DoC) are available at: www.hoymiles.com. © 2025 Hoymiles Power Electronics Inc. All rights reserved.
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