Hoymiles DTU User Manual
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Hoymiles DTU User Manual

Data transfer unit
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Data Transfer Unit (DTU)
User Manual
AP213041144 REV1.0

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Summary of Contents for Hoymiles DTU

  • Page 1 Data Transfer Unit (DTU) User Manual AP213041144 REV1.0...
  • Page 2 Corporate Headquarters Contact Information Hoymiles Converter Technology Co.,Ltd. No.18 Kangjing Road, Hangzhou 310015, China www.hoymiles.com info@hzconverter.com Copyright Hoymiles Converter Technology Co.,Ltd. All rights reserved...

  • Page 3: Table Of Contents

    Table of Contents 1. Important Safety Information ....................4 Read this First ..........................4 Safety Instructions ........................4 Audience ............................4 2. The Hoymiles Microinverter System ..................5 3. DTU Basic Operation ........................7 3.1 LCD Screen Display at Start Up ..................7 3.2 Normal Operation ......................... 7 3.3 DTU local Interface ......................8 4.

  • Page 4: Important Safety Information

    Safety Instructions ·Be aware that only qualified person shall install or replace the DTU. Do not attempt to repair the DTU as it contains the parts that are not serviceable to user. If · the DTU breaks down, please contact your distributor for maintenance. Opening the DTU without permission will invalidate the warranty.

  • Page 5: The Hoymiles Microinverter System

    2. The Hoymiles Microinverter System The DTU is the key component in Hoymiles microinverter system. It works as the gateway, which is the transfer station of monitoring information in the system. The DTU communicates with microinverters wirelessly via 2.4G RF, collecting the operating data of the system.
  • Page 6 AC power. It also can send the output information of PV panels and the operation data of the microinverters to the DTU, which is the hardware basis of the panel-level monitoring. The efficiency of the Hoymiles microinverters is up to 96.7%, and the MPPT efficiency of the Hoymiles microinverters is up to 99.9%.

  • Page 7: Dtu Basic Operation

    3. DTU Basic Operation 3.1 LCD Screen Display at Start Up When the DTU starts up, it goes through the initial boot sequence. During this initial boot sequence, the DTU LCD screen displays start-up progress as shown: BOOT SYSsetup 10:26:30 System setup…...

  • Page 8: Dtu Local Interface

    (7) The number of microinverters normally communicating with DTU, e.g. LINK: 01. 3.3 DTU local Interface The DTU has the embedded web server. You can use a browser locally to view the operation data and status of the system, manage the devices and clear fault. You need to get your computer connected to the same network with DTU to open the DTU local interface in your browser by entering the IP address shown on the LCD screen.
  • Page 9 3.3.2 Ground Fault Reset Click “Configuration GFDI Fault” to open the ground fault interface. You can check whether the microinverters have the ground fault or not. If the faults exist, click “Clear Fault” after troubleshooting. If the problem persists, please contact our Technical Support.
  • Page 10 “Send” to save. 3.3.4 Device ID Management During the first-time installation or maintenance of DTU, you need to add or delete the microinverters’ IDs to realize the monitoring of whole system. (1) Manual Mode...
  • Page 11 You need add the IDs into the blank box shown as below manually, and then click “Add ID”.
  • Page 12 After inputting all of microinverters’ IDs, you need to click “Reg ID” to finish registration. Then you can see the detailed operating information of system in the home interface. If one microinverter happens to break down and need to be replaced, you need to find that...
  • Page 13 Click “Scan ID” to start automatic search for microinverters. When the DTU detects all the microinverters’ IDs, you need to click “Reg ID” to finish registration. If the DTU cannot detect all the microinverters in the system over 30 minutes, please use manual mode instead.

  • Page 14: Dtu Installation

    2. The DTU installation’s environmental requirements: (1) Away from dust, liquid, acidic or corrosive gas (2) Temperature between -20ºC and 45ºC 3. If you plan to install the DTU on the wall, two #8(4.166mm diameter) screws and a screwdriver shall be prepared in advance.

  • Page 15: Installation Sequence

    4.3 Installation Sequence Install the PV modules 6. Check the connection and microinverters between microinverters and 7. Wall-mount the DTU 2. Locate the DTU (optional) 8. Complete the installation 3. Connect to the Internet 9. Create a monitoring 4. Check the Internet...

  • Page 16: Install The Dtu

    Install the PV modules and the micorinverters as directed by the installastion manuals. 2. Locate the DTU The communication distance of Hoymiles DTU is 200m in the open space. But in the real installation, the environment may be more complex. It may have some obstacles like walls or roofs, which will reduce the communication distance.
  • Page 17 Ground Mounting Commercial Solar System Roof Mounting Residential Solar System 1. The wooden building: 2. The reinforced concrete building:...
  • Page 18 Plug one of the bridges into the same AC outlet that the DTU is using. b. Connect one end of the Ethernet cable to the Ethernet port on the DTU, connect the other end of that Ethernet cable to the bridge.
  • Page 19 The following two methods will be used to check the connection between microinverters and DTU: (1) Open the local main interface. If the number of “total device” is the same with the number of “on-line”, it indicates the communication of the DTU and microinverters is normal.
  • Page 20 Step 1. Mount the DTU in a cool and dry location and avoid heat-generating devices (oven, warmer). l Step 2. Use two drywall screws or wall anchors to affix the DTU to the wall mounted at the dimensions about 100mm. The maximum screw head diameter is 0.35”, a #8 screw is recommended.
  • Page 21 8. Complete the Installation Map When the system is energized and the DTU detects the microinverters, you need complete the installation map. a. Peel the serial number label from the DTU. b. Place the label on the installation map.
  • Page 22 10. View System Performance Once the monitoring account is created, you can enter your username and password to log in to the monitoring web (monitor.hoymiles.com ) to view site data.

  • Page 23: Troubleshooting

    DTU. To troubleshoot this issue: (1) Relocate the DTU to ensure that the DTU can detect all the microinverters in the system. (2) If this problem occurs when light intensity is low, try again during daylight hours.

  • Page 24: Technical Data

    6. Technical Data Model Communication to Microinverter Type 2.4G RF Sample rate 5 minutes Maximum distance (free space) 200m Maximum number of inverters 99 MI-250 or 49 MI-500 connected Communication to Router/PC RJ45 Ethernet 10M/100M Power Supply Type External plug-in adapter Adapter input voltage / frequency 100 to 240 V AC / 50 or 60Hz Adapter output voltage / current...

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