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Hoymiles HM-300NT, User Manual

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Hoymiles HM-300NT User Manual Download Page 8

                                                                                     

 

©  2019  Hoymiles  Converter  Technology  Co.,  Ltd.  All  rights  reserved.                                            8   

 

HM-300NT/HM-350NT/HM-400NT 

Hoymiles Single unit Microinverter HM-300NT/HM-350NT/HM-400NT is the perfect selection for PV 
system with uneven number of panels with world’s NO.1 CEC weighted efficiency – 96.50% (peak 
efficiency 96.70%) in 2015. 

3.2 Highlights 

 

- 

Peak output power up to 300W/350W/400W; Adapted to 60 & 72 cells PV panels. 

- 

Peak efficiency 96.70%; CEC weighted efficiency 96.50%.   

- 

Static MPPT efficiency 99.80%; Dynamic MPPT efficiency 99.76% in overcast weather. 

- 

Power factor (adjustable) 0.8 leading……0.8 lagging. 

- 

External antenna for stronger communication with DTU. 

- 

High reliability: NEMA6 (IP67) enclosure; 6000V surge protection. 

3.3 Terminals Introduction 

 

 

 

Object 

Description 

A 

DC Connector 

B 

Antenna 

C 

AC Connectors 

 

3.4 Dimension(mm)   

 

     

Summary of Contents for HM-300NT

Page 1: ...Version 1 2 June 2020...

Page 2: ...control the production of a single photovoltaic module directly consequently improving the flexibility and reliability of the system About the Manual This manual contains important instructions for t...

Page 3: ...ghlights 8 3 3 Terminals Introduction 8 3 4 Dimension mm 8 4 About Function 9 4 1 Work Mode 9 5 About Installation 9 5 1 Accessories 9 5 2 Installation Precaution 10 5 3 Space Distance Required 10 5 4...

Page 4: ...Technical Data 22 8 1 DC Input 23 8 2 AC Output 23 8 3 Efficiency Safety and Protection 23 8 4 Mechanical Data 24 8 5 Features 24 5 Grid Support Details 24 Appendix 1 27 Installation Map 27 Appendix...

Page 5: ...Important Safety Instructions The HM 300NT HM 350NT HM 400NT Microinverter is designed and tested according to iernational safety requirements However certain safety precautions must be taken when ins...

Page 6: ...ipment when the safety devices do not work or disabled Use personal protective equipment including gloves and eye protection during the installation Inform the manufacturer about non standard installa...

Page 7: ...ergy However if not installed according to the instructions the microinverter may cause harmful interference to radio equipment There is no guarantee that the interference will not occur in a particul...

Page 8: ...in 2015 3 2 Highlights Peak output power up to 300W 350W 400W Adapted to 60 72 cells PV panels Peak efficiency 96 70 CEC weighted efficiency 96 50 Static MPPT efficiency 99 80 Dynamic MPPT efficiency...

Page 9: ...rent house loads there will be no extra power feed in to the Public Grid Stand by There are several circumstance that Microinverter will stay in Standby mode The current condition is contradicted with...

Page 10: ...of space around the microinverter enclosure to ensure ventilation and heat dissipation Note For some countries the DTU will be required to meet the local grid regulation e g G98 99 for UK etc 5 3 Spac...

Page 11: ...ting always make sure the air flow around the inverter is not blocked Do not install in places where gasses or flammable substances may be present Avoid electromagnetic interference that can compromis...

Page 12: ...nd plug in the AC bus end cap Plug the upper cover back to the bus connector 5 6 Installation Steps Step 1 Fix Microinverter on the Rail A Mark the approximate center of each panel on the frame B Fix...

Page 13: ...please plug the AC sub cap on the vacant plug to ensure waterproof and dustproof Note Under the circumstances that need to remove the inverter AC cable from bus port please use the AC connector unlock...

Page 14: ...ribution box and wire it to the local grid network Step 4 Create an Installation Map A Peel the removable serial number lable from each microinverter The position of the label is shown as below B Affi...

Page 15: ...ing system Product information is subject to change without notice Please download reference manuals at www hoymiles com 6 Troubleshooting 6 1 Troubleshooting List Alarm Code Alarm Name Suggestion 121...

Page 16: ...en the DTU and the microinverter If the communication is poor try to make some improvements 3 If the alarm occurs frequently and cannot be recovered contact your dealer or Hoymiles technical support 1...

Page 17: ...occurs frequently check whether the grid frequency change rate is within the acceptable range If no contact the local power operator or change the grid frequency change rate limit via Hoymiles monitor...

Page 18: ...curs frequently and cannot be recovered contact your dealer or Hoymiles technical support 305 Hardware Error Code 305 1 If the alarm occurs accidentally and the microinverter can still work normally n...

Page 19: ...on For qualified installer only To troubleshoot an inoperable microinverter follow the steps in the order shown 1 Verify the utility voltage and frequency are within ranges shown in the in appendix Te...

Page 20: ...r special brushes Do not attempt to dismantle the Microinverter or make any internal repairs In order to preserving the integrity of safety and insulation the Microinverters are not designed to allow...

Page 21: ...the replacement unit Go to the monitoring platform if customer already register this station online please access the Device List page and find the device that you just replaced Please click the down...

Page 22: ...3 Disposal If the equipment is not used immediately or is stored for long periods check that it is correctly packed The equipment must be stored in well ventilated indoor areas that do not have charac...

Page 23: ...N Peak output power VA 300 350 400 Maximum continuous output power VA 295 349 382 Maximum continuous output current A 1 42 208V 1 30 240V 1 68 208V 1 52 240V 1 84 208V 1 74 240V Nominal output voltage...

Page 24: ...nts by following the requirements of local electrical utility Simultaneous use of Fixed Power Factor and Volt Var is not supported l Manufacturer s Stated Accuracy Model HM 300NT HM 350NT HM 400NT Amb...

Page 25: ...V 88 20 sec Mandatory Operation 21 sec 21 sec Low Voltage 2 LV2 50 V 70 10 sec Mandatory Operation 11 sec 11 21 sec Low Voltage 3 LV3 V 50 1 sec Momentary Cessation 1 5 sec 1 5 2 sec Region System Fre...

Page 26: ...Reactive power absorption inductive under excited VAr 94 112 122 Reactive power production capacitive overexcited VAr 94 112 122 Units HM 300NT HM 350NT HM 400NT Output power rating W 295 349 382 Man...

Page 27: ...2019 Hoymiles Converter Technology Co Ltd All rights reserved 27 HM 300NT HM 350NT HM 400NT Appendix 1 Installation Map...

Page 28: ...IAGRAM 120VAC 240VAC SPLIT PHASE UP TO 10 HM 400NTs PER 20A AC BRANCH CIRCUIT GROUND NEUTRAL W AC DISTRIBUTION PANEL OR SUBPANEL METER AC BRANCH CABLE BROWN L BLUE N YELLOW GREEN G BRANCH END CAP L1 P...

Page 29: ...N PANEL OR SUBPANEL METER AC BRANCH CABLE BROWN L BLUE N YELLOW GREEN G L1 L2 L3 ETHERNET CONNECTION TO BROADBAND ROUTER CONNECTION TO DTU POWER ADAPATER 5V DTU UP TO 99 HM 400NTs UP TO 10 HM 400NTs P...

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