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© 2022 Hoymiles Power Electronics Inc. All rights reserved.

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Single-phase Microinverter HMS-350/400/450/500-1T-NA

Note: The voltage of modules (considering the effect of local temperature) must not exceed the maximum input

voltage of the microinverter. Otherwise, the microinverter may be damaged (refer to the Technical Data section

to determine the absolute maximum input voltage).

A

PV module

B

DC extension cable

C

Microinverter

4. Installation Preparation

4.1 Position and Space Required

Please install the microinverter and all DC connections under the PV module to avoid direct sunlight, rain
exposure, snow buildup, UV etc. The silver side of the microinverter should be up and facing the PV module.

Leave a minimum of 2 cm of space around the microinverter enclosure to ensure ventilation and heat dissi-
pation.

4.2 Connecting PV Module to Microinverter

General Guidelines:

1. PV modules should be connected to DC input ports of a microinverter.

2. Use DC extension cable when the original cable is not long enough. Please consult the local power opera-
tor to make sure that the DC cable complies with local regulations.

The typical wiring method is shown below.

A

B

C

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Содержание HMS-350-1T-NA

Страница 1: ...Open Energy for All Single phase Microinverter HMS 350 1T NA HMS 400 1T NA HMS 450 1T NA HMS 500 1T NA USER MANUAL Region North America V202201 hoymiles com ...

Страница 2: ...ighly flexible and reliable as the system enables direct control of the production of each PV module About the Manual This manual contains important instructions for HMS 350 1T NA HMS 400 1T NA HMS 450 1T NA HMS 500 1T NA microinverters and users shall read in its entirety before installing or commissioning the equipment For safety reasons only qualified technicians who have received training or d...

Страница 3: ... 4 1 Position and Space Required 10 4 2 Connecting Multiple PV Modules to Microinverter 10 4 3 Installation Tools 11 4 4 AC Branch Circuit Capacity 11 4 5 Precautions 12 5 Microinverter Installation 13 5 1 Accessories 13 5 2 Installation Steps 13 6 Troubleshooting 17 6 1 Troubleshooting List 17 6 2 LED Indicator Status 20 6 3 On site Inspection For qualified installer only 21 6 4 Routine Maintenan...

Страница 4: ... indicates a hazardous situation that can result in deadly electric shocks other serious physical injuries or fire incidents This indicates that directions must be strictly followed to avoid safety hazards including equipment damage and personal injury This indicates that the act is forbidden You should stop use caution and fully understand the operations explained before proceeding 1 4 Radio Inte...

Страница 5: ...rnal disconnect switches and Over Current Protection Devices OCPD Each input of the inverter is connected to one PV module Do not connect batteries or other sources of power supply The inverter can be used only if all the technical parameters are observed and applied Do not install the equipment in flammable explosive corrosive extremely hot cold and humid en vironment Do not use the equipment whe...

Страница 6: ... no longer needed must be returned to an authorized dealer or approved collection and recycling facility Caution Do not come within 8 inches 20 cm of the microinverter when it is in operation Danger of high voltage High voltage in the microinverter can cause dangers to life Beware of hot surface The inverter can become hot during operation Avoid contact with metal surfac es during operation CE mar...

Страница 7: ...er is a module level solar inverter that tracks the maximum DC power point of each PV module which is known as Maximum Power Point Tracking MPPT This function of module level MPPT means that when a PV module fails or is shaded other modules will not be affected boosting the overall power production of the system Microinverter can monitor the current voltage and power of each module to realize modu...

Страница 8: ...z wireless networking can handle interference better This is because it operates on a lower frequency so the communication between the microinverter and the DTU is more stable As a result it is especially useful in industrial or commercial PV power plants Lower Power Consumption Sub 1GHz wireless communication uses less power than Wi Fi or Zigbee Because of the long range and better interference s...

Страница 9: ...s Inc All rights reserved 9 Single phase Microinverter HMS 350 400 450 500 1T NA 3 7 Dimensions mm 3 6 Terminals Introduction Object Description A Sub 1G Wireless Terminal B DC Connectors C AC Sub Connector C A B 164 140 8 5 500 225 ...

Страница 10: ...quired Please install the microinverter and all DC connections under the PV module to avoid direct sunlight rain exposure snow buildup UV etc The silver side of the microinverter should be up and facing the PV module Leave a minimum of 2 cm of space around the microinverter enclosure to ensure ventilation and heat dissi pation 4 2 Connecting PV Module to Microinverter General Guidelines 1 PV modul...

Страница 11: ...208 V 10 240 V 8 208 V 9 240 V 7 208 V 8 240 V 20 A Maximum number per 10AWG branch 15 208 V 18 240 V 13 208 V 16 240 V 12 208 V 14 240 V 10 208 V 12 240 V 30 A 4 4 AC Branch Circuit Capacity Hoymiles HMS 350 1T NA HMS 400 1T NA HMS 450 1T NA HMS 500 1T NA can be used with 12AWG or 10AWG AC Trunk Cable and the AC Trunk Connector which are provided by Hoymiles The number of microinverters on each 1...

Страница 12: ... direct sunlight to prevent power derating which can be caused by an increase in the internal temperature of the microinverter Keep the inverter in well ventilated place to avoid overheating Keep the inverter away from gases or flammable substances Avoid electromagnetic interference because it can compromise the normal operation of electronic equipment Install only on structures specifically desig...

Страница 13: ...Connector Unlock Tool H AC Trunk Port Cap Note All accessories above are not included in the package and should be purchased separately 5 2 Installation Steps The order of Step 1 and Step 2 can be reversed according to your planned needs Step 1 Plan and Install the Microinverter A Mark the position of each microinverter on the rail according to the PV module layout B Fix the screws on the rail C H...

Страница 14: ...sure to ensure ventilation and heat dissi pation 3 Mounting torque of the 8 mm screw is 9 N m Do not over torque 4 Do not pull or hold the AC cable with your hand Hold the handle instead Step 2 Plan and Build the AC Trunk Cable AC Trunk Cable is used to connect the microinverter to the power distribution box A Select the appropriate AC Trunk Cable according to the spacing between microinverters Th...

Страница 15: ...ap back to the port Plug the upper cover back to the Trunk connector 2 Install the AC Trunk End Cap at one side of AC Trunk Cable the end of AC Trunk Cable 3 Install AC end cable on the other side of AC Trunk Cable connected to the distribution box 4 0 0 5N m click 8 1mm 40 5mm L PE N 4 0 0 5N m 0 4 0 1N m Plug the upper cover back to the Trunk connector click Note 1 Tightening torque of the cap 4...

Страница 16: ...the distribution box and wire it to the local grid network Product information is subject to change without notice Please download reference manuals at www hoymiles com click Step 4 Create an Installation Map Step 5 Connect PV Modules Step 6 Energize the System A Turn on the AC breaker of the branch circuit B Turn on the main AC breaker of the house Your system will start to generate power in abou...

Страница 17: ...reatment is required 2 If the alarm occurs frequently and cannot be recovered contact your dealer or Hoymiles technical support team 130 Offline 1 Please make sure that the microinverter works normally check if the DC voltage is within normal range and confirm the status of the LED indicator 2 Check if the SN on microinverter label is the same as on the monitoring platform 3 Check the communicatio...

Страница 18: ...s occasionally the grid frequency may be just abnormal temporarily The microinverter can automatically recover after grid frequency becomes normal 2 If the alarm occurs frequently check whether the grid frequency change rate is within the acceptable range If not contact the local power operator or change the grid frequency change rate limit in the grid profile in the grid profile via Hoymiles moni...

Страница 19: ...f the DC extension cable is made correctly 215 PV 1 Input overvoltage Check the input voltage of PV 1 port 216 PV 1 Input undervoltage Check the input voltage of PV 1 port 301 314 Device failure 1 If the alarm occurs occasionally and the microinverter can still work normally no special treatment is required 2 If the alarm occurs frequently and cannot be recovered contact your dealer or Hoymiles te...

Страница 20: ...rmal Red flashes 0 5s gap Invalid AC grid or hardware failure Refer to Hoymiles Monitoring Platform for more details Red flashes 1s gap Not producing power due to invalid AC grid Solid red Hardware failure Please refer to Hoymiles Monitoring Platform for more details 3 Other Status Red and Green flashes alternately Firmware is broken LED Note 1 The microinverter is powered by DC side If the LED li...

Страница 21: ...If the troubleshooting fails please return it to the factory for replacement 6 4 Routine Maintenance 1 Only authorized personnel are allowed to carry out the maintenance operations and are responsible for reporting any anomalies 2 Always use personal protective equipment provided by the employer during maintenance operation 3 During normal operation check the environmental conditions regularly to ...

Страница 22: ...ct tool Remove the AC Sub Connector with AC disconnect tool Loosen the fixing screws on the top of the microinverter and remove the microinverter from the PV racking b How to replace the microinverter in monitoring platform Please note down the new microinverter s SN Please make sure the AC branch circuit breaker is off and install the replacement unit according to the microinverter installation s...

Страница 23: ...priate ways to avoid unforeseen injury Please examine the conditions of the components to be transported Upon receiving the microinverter you should check the container for any external damage and verify the receipt of all items Please call the carrier immediately if there is any damage or if any parts are missing In case of any damage caused to the inverter contact the supplier or authorized dist...

Страница 24: ...r VA 350 400 450 500 Maximum continuous output power VA 319 360 410 475 Maximum continuous output current A 1 33 1 53 1 5 1 73 1 71 1 98 1 98 2 28 Nominal output voltage range V 1 240 211 264 208 183 228 240 211 264 208 183 228 240 211 264 208 183 228 240 211 264 208 183 228 Nominal frequency range Hz 1 60 55 65 Power factor adjustable 0 99 default 0 8 leading 0 8 lagging Total harmonic distortion...

Страница 25: ...al electrical utility Simultaneous use of Fixed Power Factor and Volt Var is not supported Measurement Default Tolerance of Measurement Volts 1 Watts 5 VAr 6 Power factor 0 05 Hz 0 1 Hz Region Voltage at PCC Nominal Voltage Ride Through Until Operating Mode Maximum Trip Time s Range of Adjustable Maximum Trip Time s High Voltage 2 HV2 V 120 N A N A 0 16 sec 0 16 sec High Voltage 1 HV1 110 V 120 12...

Страница 26: ...ration N A N A Low Frequency 1 LF1 57 0 f 58 5 299 sec Mandatory Operation 300 sec 0 1 300 sec Low Frequency 2 LF2 f 57 0 No Ride Through Not Applicable 0 16 sec 0 16 sec Low Voltage 3 LV3 V 50 1 sec Momentary Cessation 1 5 sec 1 5 2 sec Units Adjustment Range Tolerance Max Min Ramp up rate Irated s 100 1 4 Soft ramp up rate Irated s 100 0 1 4 Adjustment Range Max Min Inductive under excited power...

Страница 27: ...A HMS 450 1T NA HMS 500 1T NA Output power rating W 319 360 410 475 Manufacturer s stated P f accuracy Prated 5 5 5 5 Maximum slope of frequency droop Prated Hz 100 100 100 100 Minimum slope of frequency droop Prated Hz 20 20 20 20 Units HMS 350 1T NA HMS 400 1T NA HMS 450 1T NA HMS 500 1T NA Output power rating W 319 360 410 475 Output Power accuracy Prated 5 5 5 5 Maximum Slope of active power r...

Страница 28: ...0 Appendix 1 10 1 Installation Map To sheet ______ To sheet ______ To sheet ______ To sheet ______ Sheet_____of_____ Hoymiles Microinverter Installation Map Please Make N for North 1 A B C D 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 COLUMN ROW AP040228 V1 4 Customer Information DTU Serial Number Azimuth Tilt Panel type ...

Страница 29: ... 2022 Hoymiles Power Electronics Inc All rights reserved 29 Single phase Microinverter HMS 350 400 450 500 1T NA 11 Appendix 2 11 1 WIRING DIAGRAM 120VAC 240VAC SPLIT PHASE ...

Страница 30: ... 2022 Hoymiles Power Electronics Inc All rights reserved 30 Single phase Microinverter HMS 350 400 450 500 1T NA 11 Appendix 2 11 2 WIRING DIAGRAM 120VAC 208VAC THREE PHASE ...

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