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© 2022 Hoymiles Power Electronics Inc. All rights reserved.

04

Data Transfer Unit User Manual

3.  Interface Layout

3.1  For Wi-Fi Version

4.  Installation Planning and Preparation

4.1  Pre-installation

4.1.1  System Capacity

The DTU-Lite-S is capable of monitoring up to 99 PV modules. If the communication between the 
DTU and microinverter is affected by the installation conditions, the number of PV modules that the 
DTU can monitor may be reduced.

Note: The maximum number of modules is only possible in open space when installation conditions detailed in DTU 

and microinverter manuals are fulfilled and the microinverter and DTU are properly placed apart as required.

4.1.2  Environmental Requirements for DTU Installation:

•   The DTU should be installed away from dust, liquid, acidic, or corrosive gas.
•   The ambient temperature should be between -20ºC and 55ºC.

4.2  Dimensions 

A

B C

Item

Description

A

USB Connector

B

Status Indicator

C

Reset Button

12.5 mm

33.0 mm

143.0 mm

Summary of Contents for DTU-Lite-S

Page 1: ...Open Energy for All Data Transfer Unit USER MANUAL DTU Lite S Region Global V202202 hoymiles com...

Page 2: ...apacity 04 4 1 2 Environmental Requirements for DTU Installation 04 4 2 Dimensions 04 4 3 System Installation Steps 05 5 DTU Installation 06 5 1 Installation Instructions 06 5 2 Online Setting 06 5 3...

Page 3: ...ry to repair DTU without Hoymiles permission If the DTU is damaged please send it back to your installer for repair replacement Disassembling DTU without Hoymiles permission will invalidate the remain...

Page 4: ...of PV modules to the DTU which is the hardware basis of the module level monitoring With conversion efficiency up to 96 7 and MPPT efficiency up to 99 9 Hoymiles microinverters rank among the first c...

Page 5: ...number of PV modules that the DTU can monitor may be reduced Note The maximum number of modules is only possible in open space when installation conditions detailed in DTU and microinverter manuals ar...

Page 6: ...r at home Step 6 must be done correctly in order to complete site creation on S Miles Cloud 1 Install the PV modules and microinverters 2 Locate the DTU 3 Connect the microinverter to the grid 4 Power...

Page 7: ...sure that it is placed at least 0 5 meters above the ground and try to install the DTU perpendicular to the ground 2 To prevent signal attenuation please do not install the DTU directly above metal or...

Page 8: ...9 Select the DTU s wireless network and click Connect The network name of the DTU consists of DTUL and product serial number and is password free by default D Set up with Internet 9 When the connectio...

Page 9: ...TU 9 The network configuration takes about 1 minute please be patient 9 If the network is not connected please check the internet as instructed 9 Check the indicator light of DTU when the connection i...

Page 10: ...sed for on site inspection after the PV power station is complete so that the operation of microinverter can be monitored without Site Creation 6 1 Connect to the DTU 9 Open the Installer app on smart...

Page 11: ...s Inc All rights reserved 10 Data Transfer Unit User Manual 9 Select the DTU s wireless network and click Connect The network name of the DTU consists of DTUL and product serial number and is password...

Page 12: ...oolkit 2 If you have already created the power station on the monitoring platform you can directly view the data and information on the overview page Refer to Section 6 2 3 for more details 6 2 2 Add...

Page 13: ...d the microinverter to the list The microinverter added here is only used for on site debugging and it will not be uploaded to the server nor can it replace the power station creation on S Miles Cloud...

Page 14: ...ser Manual 4 The search result of microinverters and microinverters added will be displayed in the list Tap the button on the right if you want to delete it 5 Confirm that the microinverter ID in the...

Page 15: ...wer of each microinverter 2 If you want to see more details of one microinverter just click the serial number then you can check the input and output data on the page shown as below Note If the microi...

Page 16: ...6 2 4 View Communication Status with Microinverter 1 Re enter Micro Toolkit and tap Connection Status 2 On this page you can check the signal strength between the DTU and each microinverter Tap the si...

Page 17: ...er Unit User Manual 3 You can also tap the button to switch the signal quality and real time data page Note If the microinverter has no signal please check whether the microinverter is powered on or r...

Page 18: ...ion Guide for S Miles Cloud Online Registration for detailed account creation instructions 7 1 Site Creation 1 Search Hoymiles in the App Store IOS or the Play Store Android or scan the QR code to dow...

Page 19: ...nsfer Unit User Manual 3 Select the Station tab on the bottom and then select on the right top side of the page to add station Fill in the station details and press Next Select one from the three type...

Page 20: ...2022 Hoymiles Power Electronics Inc All rights reserved 19 Data Transfer Unit User Manual 4 Select owner for the plant Create a new one if there is none...

Page 21: ...Power Electronics Inc All rights reserved 20 Data Transfer Unit User Manual 5 Press Add DTU ID Scan or input the DTU ID 6 Scan or input the microinverter ID Press Finish when all microinverter IDs ha...

Page 22: ...c All rights reserved 21 Data Transfer Unit User Manual 7 Customize the layout based on the installation or click the tick box on the top right to select preset layouts Then tap Next 8 Save the design...

Page 23: ...p Next 10 Please enter the currency unit and your electricity price Click the Networking button and tap Save to complete the site creation 11 The new site will appear on the station list under the Ins...

Page 24: ...y searching Hoymiles in App Store IOS or Play Store Android B Log in with the password and username that have been set up by the installer on the previous step C Customers will be able to view all det...

Page 25: ...Inc All rights reserved 24 Data Transfer Unit User Manual 7 3 Browse Station on Webpage Log in to your account and browse the station on webpage 7 4 View Phone App Download the app on your mobile pho...

Page 26: ...DTU please complete the installation according to the instructions in this manual Otherwise data on the monitoring platform may be lost 2 Log in to your account on the web Select Devices Action Device...

Page 27: ...Wi Fi disconnected Flashes every 0 5 seconds Connection with server failed Blue Light Description Flashes every 1 second No ID Flashes every 0 5 seconds Received data from server Green Light Descript...

Page 28: ...ion to S Miles Cloud Signal 802 11b g n Sample rate Per 15 minutes Interaction LED LED Indicator Local App S Miles Toolkit Power Supply Adapter Type External adapter Adapter input voltage frequency 10...

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