Open Energy For All - HoymilesOpen Energy For All - HoymilesUser Manual for hoymiles models including: MI-1000, MI-1200, MI-1500, Single-Phase Microinverter
© 2021 3Hoymiles Power Electronics Inc. All rights reserved. MI-1000/MI-1200/MI-1500 Contents 1. Important Notes ..... 5
Version 3.0 (February 2021) MI-1000/MI-1200/MI-1500 About Microinverter This system is composed of a group of Microinverters that convert direct current (DC) into alternating current (AC) and feeds it into the public grid. The system is designed for the incorporation of one Microinverter for two photovoltaic modules. Each Microinverter works independently that guarantees the maximum power generation of each photovoltaic module. This setup enables user to 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 the MI-1000/MI-1200/MI-1500 Microinverter and must be read in its entirety before installing or commissioning the equipment. For safety, only qualified technician, who has received training or has demonstrated skills can install and maintain this Microinverter under the guide of this document. Other Information Product information is subject to change without notice. User manual will be updated frequently, please refer to Hoymiles official website at www.hoymiles.com for the latest version. © 2021 Hoymiles Power Electronics Inc. All rights reserved. 2 MI-1000/MI-1200/MI-1500 Contents 1. Important Notes .................................................................................................................................................. 5 1.1 Product Range.............................................................................................................................................. 5 1.2 Target Group................................................................................................................................................. 5 1.3 Symbols Used............................................................................................................................................... 5 2. About Safety ........................................................................................................................................................ 5 2.1 Important Safety Instructions...................................................................................................................... 5 2.2 Explanation of Symbols............................................................................................................................... 6 2.3 Radio Interference Statement .................................................................................................................... 7 3. About Product ..................................................................................................................................................... 7 3.1 About 4 in 1 Unit........................................................................................................................................... 7 3.2 Highlights....................................................................................................................................................... 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 Grounding Consideration .......................................................................................................................... 11 5.5 Preparation.................................................................................................................................................. 11 5.6 Installation Steps ........................................................................................................................................ 12 6. Troubleshooting ................................................................................................................................................ 15 6.1 Troubleshooting List (SN: 1062xxxxxxxx) .............................................................................................. 15 6.2 Troubleshooting List (SN: 1060xxxxxxxx, 1061xxxxxxxx) ................................................................... 19 6.3 Status LED Indicator (SN: 1062xxxxxxxx).............................................................................................. 21 6.4 Status LED Indicator (SN: 1060xxxxxxxx, 1061xxxxxxxx)................................................................... 22 6.5 Insulation Resistance Detection............................................................................................................... 22 6.6 On-site Inspection (For qualified installer only) ..................................................................................... 23 6.7 Routine Maintenance................................................................................................................................. 23 6.8 Replace Microinverter................................................................................................................................ 24 7. Decommissions................................................................................................................................................. 25 © 2021 Hoymiles Power Electronics Inc. All rights reserved. 3 MI-1000/MI-1200/MI-1500 7.1 Decommissions .......................................................................................................................................... 25 7.2 Storage and Transportation...................................................................................................................... 25 7.3 Disposal ....................................................................................................................................................... 25 8. Technical Data .................................................................................................................................................. 26 8.1 DC Input....................................................................................................................................................... 26 8.2 AC Output.................................................................................................................................................... 26 8.3 Efficiency, Safety and Protection ............................................................................................................. 27 8.4 Mechanical Data......................................................................................................................................... 27 8.5 Features....................................................................................................................................................... 27 Appendix 1: ............................................................................................................................................................ 28 Installation Map ................................................................................................................................................. 28 Appendix 2: ............................................................................................................................................................ 29 WIRING DIAGRAM 230VAC SINGLE PHASE:........................................................................................ 29 WIRING DIAGRAM 230VAC / 400VAC THREE PHASE:....................................................................... 30 WIRING DIAGRAM 120VAC / 240VAC SPLIT PHASE: .......................................................................... 31 WIRING DIAGRAM 120VAC / 208VAC THREE PHASE:....................................................................... 32 © 2021 Hoymiles Power Electronics Inc. All rights reserved. 4 MI-1000/MI-1200/MI-1500 1. Important Notes 1.1 Product Range This manual describes the assembly, installation, commissioning, maintenance and failure search of the following model of Hoymiles Microinverter: MI-1000 MI-1200 MI-1500 *Note: "1000" means 1000W, "1200" means 1200W, "1500" means 1500W. 1.2 Target Group This manual is only for qualified technician, who has been trained or has demonstrated skills can install and maintain this Microinverter under the guide of this document for safety purpose. 1.3 Symbols Used The safety symbols in this user manual are show as below. Symbol Usage Indicates a hazardous situation that can result in deadly electric shock hazards, other serious physical injury, or fire hazards. 2. About Safety Indicates directions which must be fully understood and followed in entirety in order to avoid potential safety hazards including equipment damage or personal injury. Indicates this points out that the described operation must not be carried out. The reader should stop, use caution and fully understand the operations explained before proceeding. 2.1 Important Safety Instructions The MI-1000/MI-1200/MI-1500 Microinverter is designed and tested according to international safety requirements. However, certain safety precautions must be taken when installing and operating this inverter. The installer must read and follow all instructions, cautions and warnings in this installation manual. © 2021 Hoymiles Power Electronics Inc. All rights reserved. 5 MI-1000/MI-1200/MI-1500 All operations including transport, installation, start-up and maintenance, must be carried out by qualified, trained personnel. Before installation, check the unit to ensure free of any transport or handling damage, which could affect insulation integrity or safety clearances. Choose installation location carefully and adhere to specified cooling requirements. Unauthorized removal of necessary protections, improper use, incorrect installation and operation may lead to serious safety and shock hazards or equipment damage. Before connecting the Microinverter to the power distribution grid, contact the local power distribution grid company to get appropriate approvals. This connection must be made only by qualified technical personnel. It is the responsibility of the installer to provide external disconnect switches and Over current Protection Devices (OCPD). Only one photo voltaic module can be connected to one input of the inverter. Do not connect batteries or other sources of power supply. The inverter can be used only if all the technical characteristics are observed and applied. Do not install the equipment in adverse environment conditions such as flammable, explosive, corrosive, extreme high or low temperature, and humid. Do not use the equipment 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 installation conditions. Do not use the equipment if any operating anomalies are found. Avoid temporary repairs. All repairs should be carried out using only qualified spare parts, which must be installed in accordance with their intended use and by a licensed contractor or authorized Hoymiles service representative. Liabilities arising from commercial components are delegated to their respective manufacturers. Anytime the inverter has been disconnected from the public network, please be extremely caution as some components can retain charge sufficient to create a shock hazard. Prior to touching any part of the inverter please ensure surfaces and equipment are under touch safe temperatures and voltage potentials before proceeding. Hoymiles accepts No liability for damage from incorrect or improper operation. Electrical Installation & Maintenance shall be conducted by licensed electrician and shall comply with Local Wiring Rules. 2.2 Explanation of Symbols Symbol Usage Treatment To comply with European Directive 2002/96/EC on waste Electrical and Electronic Equipment and its implementation as national law, electrical equipment that has reached the end of its life must be collected separately and returned to an approved recycling facility. Any device no longer required must be returned to an authorized dealer or approved collection and recycling facility. © 2021 Hoymiles Power Electronics Inc. All rights reserved. 6 MI-1000/MI-1200/MI-1500 Caution Do not come within 8 inches (20cm) of the microinverter for any length of time while it is in operation. Danger of high voltages Danger to life due to high voltage in the microinverter. Beware of hot surface The inverter can become hot during operation. Avoid contact with metal surfaces during operation. CE mark The inverter complies with the requirements of the Low Voltage Directive for the European Union. Read manual first Please read the installation manual first before installation, operation and maintenance. 2.3 Radio Interference Statement This microinverter has been tested and found to comply with the limits for CE EMC, which can provide reasonable protection against harmful energy. 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 particular installation. To confirm that the radio or television reception is interfered by this equipment, you can turn the equipment off and on. If this equipment does cause harmful interference to the radio or television equipment, please try to correct the interference by one or more of the following measures: 1) Relocate the receiving antenna. 2) Increase the separation between the microinverter and the receiving antenna. 3) Place the shield between the microinverter and the receiving antenna, such as metal / concrete roof. 4) Contact your dealer or an experienced radio/TV technician for help. 3. About Product 3.1 About 4 in 1 Unit "The world's First Daisy-Chain 4 in 1 Unit Microinverter" with extremely wide DC input operating voltage range (16-60V) and low start-up voltage (22V only). © 2021 Hoymiles Power Electronics Inc. All rights reserved. 7 MI-1000/MI-1200/MI-1500 Hoymiles 4 in 1 unit Microinverter MI-1000/MI-1200/MI-1500 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 - Maximum output power up to 1000W/1200W/1500W; 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. - High reliability: NEMA6 (IP67) enclosure; 6000V surge protection. 3.3 Terminals Introduction Object A B C 3.4 Dimension(mm) Description AC Connector (Male) AC Connector (Female) DC Connectors © 2021 Hoymiles Power Electronics Inc. All rights reserved. 8 MI-1000/MI-1200/MI-1500 4. About Function 4.1 Work Mode Normal: Under this mode, Microinverter is operating normally and convert DC power into AC power to support the house loads and feed in to Public Grid. Zero Export Control: Under this mode Microinverter's generation is limit base on the current 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 Microinverter operating requirement. - No house loads or the Export control value has been set as "0" on the DTU under the Zero Export Control mode. 5. About Installation 5.1 Accessories Object A B C D Description AC End Cable (Female), 2m 12AWG Cable M8*25 screws DC Extension Cable, 1m AC Female End Cap, IP67 *Note: All accessories above are not included in the package, and need to be purchased separately. Please contact our sales representative for the price. (M8 screws need to be prepared by installer-self.) © 2021 Hoymiles Power Electronics Inc. All rights reserved. 9 MI-1000/MI-1200/MI-1500 5.2 Installation Precaution Please install the Microinverter and all DC connections under the PV module to avoiding direct sunlight, rain exposure, snow layup, UV etc. Allow a minimum of 2 cm 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 Space Distance Required If the microinverters are installed on a concrete roof or steel roof, the communication with the DTU may be slightly affected. Under such installation conditions, it is better for the microinverters to be installed 50cm above the roof. Otherwise, more DTUs may be required to ensure the communication quality between the DTUs and the microinverters. © 2021 Hoymiles Power Electronics Inc. All rights reserved. 10 MI-1000/MI-1200/MI-1500 5.4 Grounding Consideration This microinverter is a class I equipment with basic isolation transformer and this microinverter must be earthed. There is an earth wire inside the AC cable, so usually the grounding can be done by directly by this wire. If the utility has some special requirements, the grounding can be done by bonding the mounting bracket to the racking. 5.5 Preparation Installation of the equipment is carried out based on the system design and the place in which the equipment is installed. The installation must be carried out with the equipment disconnected from the grid (power disconnect switch open) and with the photovoltaic modules shaded or isolated. Referring to the Technical Data to make sure the environmental conditions fit the microinverter's requirement (degree of protection, temperature, humidity, altitude, etc.) To avoid power de-rating due to an increase in the microinverter internal temperature, do not expose it to direct sunlight. To avoid overheating, 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 compromise the correct operation of electronic equipment. When choosing the position of installation, comply with the following conditions: Install only on structures specifically conceived for photovoltaic modules (supplied by installation technicians). Install Microinverter underneath of the photovoltaic modules to make sure it works in theshadow. If this condition cannot be met, might trigger the inverter production de-rating. © 2021 Hoymiles Power Electronics Inc. All rights reserved. 11 MI-1000/MI-1200/MI-1500 Fig.1 Installation position of microinverter 5.6 Installation Steps Step 1. Fix Microinverter on the Rail A) Mark the approximate center of each panel on the frame. B) Fix the screw on the rail. C) Hang the microinverter on the screw (shown as picture below), and tighten the screw. The silver cover side of the Microinverter should be facing the panel. Step 2. Connect AC Cables of Microinverter A) Plug the AC connector of the first microinverter with the connector of the second microinverter, to form a continuous AC branch circuit. © 2021 Hoymiles Power Electronics Inc. All rights reserved. 12 MI-1000/MI-1200/MI-1500 *Note: The length of AC cable on Microinverter is around 2.06m, if the distance between two Microinverters is more than 1.2m please use the AC extension cable between two inverters (As picture indicated below). B) Install the AC end cap on the open AC connector of the last microinverter in the AC branch circuit. Step 3. Connect AC End Cable A) Make the end cable 1. Take the AC port apart into 3 parts: 2. Insert the AC cable from Part 3 to Part 2, and complete the wiring for the L, N and Ground inside Part 1 AC port accordingly: *Note: L: Brown wire N: Blue wire G: Yellow/Green wire Please use 12 AWG cable as AC end cable. © 2021 Hoymiles Power Electronics Inc. All rights reserved. 13 MI-1000/MI-1200/MI-1500 3. Plug the AC port Part 2 into Part 1 once complete the wiring, and screw the Part 3 on and complete the AC extension cable: B) Connect the AC end cable to the AC male connector of the first Microinverter to complete the circuit. C) Connect the other side of the AC end cable to the distribution 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) Affix the serial number label to the respective location on the installation map. © 2021 Hoymiles Power Electronics Inc. All rights reserved. 14 MI-1000/MI-1200/MI-1500 Step 5. Connect PV Modules A) Mount the PV modules above the microinverter. B) Connect the PV modules' DC cables to the DC input side of the microinverter. 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 after about two-minute wait time. Step 7. Set Up the Monitoring System Refer to the DTU User Manual or DTU Quick Install Guide, and Quick Installation Guide for HMP Online Registration to install the DTU and set up your monitoring system. 6. Troubleshooting Hoymiles updated the interactive performance of the microinverter system in the middle of 2020. If you use the microinverter of serial number "1062xxxxxxxx", please refer to chapter 6.1 and chapter 6.3. If you use the microinverter of serial number "1060xxxxxxxx" and "1061xxxxxxxx", please refer to chapter 6.2 and chapter 6.4. *Note: The 3rd generation of this microinverter (SN:1062xxxxxxxx) can only work with the new Hoymiles gateway, DTU-Pro (SN: 10F7xxxxxxxx, 10F8xxxxxxxx, 10FBxxxxxxxx), DTU-G100 (SN: 10D2xxxxxxxx), DTU-W100 (SN: 10D3xxxxxxxx) and DTU-Lite (SN: 10D6xxxxxxxx) . 6.1 Troubleshooting List (SN: 1062xxxxxxxx) Alarm Code Alarm Name Suggestion © 2021 Hoymiles Power Electronics Inc. All rights reserved. 15 MI-1000/MI-1200/MI-1500 121 125 126 127 128 129 130 141 142 Over temperature protection Grid configuration parameter error Software error code 126 Firmware error Software error code 128 Software error code 129 Offline Grid overvoltage 10 min value grid overvoltage 1. Check the ventilation and ambient temperature at the microinverter installation position. 2. If the ventilation is poor or the ambient temperature exceeds the limit, improve the ventilation and heat dissipation. 3. If both the ventilation and ambient temperature meet the requirements, contact your dealer or Hoymiles technical support. 1.Check if the grid configuration parameter is correct and upgrade again. 2. If the fault still exists, contact your dealer or Hoymiles technical support. 1. If the alarm occurs accidentally 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 technical support. 1.Check if the firmware is correct and upgrade again. 2.Check the communication between DTU and Hoymiles monitoring system, the communication between DTU and microinverter. Then try again. 3. If the fault still exists, contact your dealer or Hoymiles technical support. 1. If the alarm occurs accidentally 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 technical support. 1. If the alarm occurs accidentally 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 technical support. 1.Please make sure that the microinverter works normally. 2.Check the communication status between the DTU and hoymiles monitoring system or between 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. If the alarm occurs accidentally, the grid voltage may be abnormal temporarily. The microinverter can recover automatically after grid voltage becomes normal. 2. If the alarm occurs frequently, check whether the grid voltage is within the acceptable range. If no, contact the local power operator or change the grid overvoltage protection limit via Hoymiles monitoring system with the consent of the local power operator. 1. If the alarm occurs accidentally, the grid voltage may be abnormal temporarily. The microinverter can recover automatically after grid voltage becomes normal. 2. If the alarm occurs frequently, check whether the grid voltage is within © 2021 Hoymiles Power Electronics Inc. All rights reserved. 16 MI-1000/MI-1200/MI-1500 143 144 145 146 147 148 149 205 Grid undervoltage Grid overfrequency Grid underfrequency Rapid grid frequency change rate Power grid outage Grid disconnection Island detected Input port 1 & 2 overvoltage the acceptable range. If no, contact the local power operator or change the grid overvoltage protection limit via Hoymiles monitoring system with the consent of the local power operator. 1. If the alarm occurs accidentally, the grid voltage may be abnormal temporarily. The microinverter can recover automatically after grid voltage becomes normal. 2. If the alarm occurs frequently, check whether the grid voltage is within the acceptable range. If no, contact the local power operator or change the grid undervoltage protection limit via Hoymiles monitoring system with the consent of the local power operator. 3. If the fault still exists, check the AC switch or AC wiring. 1. If the alarm occurs accidentally, the grid frequency may be abnormal temporarily. The microinverter can recover automatically after grid frequency becomes normal. 2. If the alarm occurs frequently, check whether the grid frequency is within the acceptable range. If no, contact the local power operator or change the grid overfrequency protection limit via Hoymiles monitoring system with the consent of the local power operator. 1. If the alarm occurs accidentally, the grid frequency may be abnormal temporarily. The microinverter can recover automatically after grid frequency becomes normal. 2. If the alarm occurs frequently, check whether the grid frequency is within the acceptable range. If no, contact the local power operator or change the grid underfrequency protection limit via Hoymiles monitoring system with the consent of the local power operator. 1. If the alarm occurs accidentally, the grid frequency may be abnormal temporarily. The microinverter can recover automatically after grid frequency becomes normal. 2. If the alarm 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 monitoring system with the consent of the local power operator. Please check whether there is a power grid outage. Please check whether the AC switch or AC wiring is normal. 1. If the alarm occurs accidentally, the grid voltage may be abnormal temporarily. The microinverter can recover automatically after grid voltage becomes normal. 2. If the alarms occur frequently on all the microinverters in your station, contact the local power operator to check whether there is a grid island. 3.If the alarm still exists, contact your dealer or Hoymiles technical support. 1.Please make sure that the PV module open-circuit voltage is less than or equal to the maximum input voltage. © 2021 Hoymiles Power Electronics Inc. All rights reserved. 17 MI-1000/MI-1200/MI-1500 206 207 208 209 210 211 212 213 214 301 302 303 304 Input port 3 & 4 overvoltage Input port 1 & 2 undervoltage Input port 3 & 4 undervoltage Port1 No input Port 2 No input Port 3 No input Port 4 No input PV-1 & PV-2 abnormal wiring PV-3 & PV-4 abnormal wiring Hardware Error Code 301 Hardware Error Code 302 Hardware Error Code 303 Hardware Error Code 304 2. If the PV module open-circuit voltage is within the normal range, contact your dealer or Hoymiles technical support. 1.Please make sure that the PV module open-circuit voltage is less than or equal to the maximum input voltage. 2. If the PV module open-circuit voltage is within the normal range, contact your dealer or Hoymiles technical support. 1.Please make sure that the PV module open-circuit voltage is less than or equal to the maximum input voltage. 2. If the PV module open-circuit voltage is within the normal range, contact your dealer or Hoymiles technical support. 1.Please make sure that the PV module open-circuit voltage is less than or equal to the maximum input voltage. 2. If the PV module open-circuit voltage is within the normal range, contact your dealer or Hoymiles technical support. 1. Please confirm whether this port is connected to the PV module; 2. If the PV module is connected, please check the DC cable connection between this port and the PV module. 1. Please confirm whether this port is connected to the PV module; 2. If the PV module is connected, please check the DC cable connection between this port and the PV module. 1. Please confirm whether this port is connected to the PV module; 2. If the PV module is connected, please check the DC cable connection between this port and the PV module. 1. Please confirm whether this port is connected to the PV module; 2. If the PV module is connected, please check the DC cable connection between this port and the PV module. Please check whether the DC connections on port 1 and 2 are correct. Please check whether the DC connections on port 3 and 4 are correct. 1. If the alarm occurs accidentally 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 technical support. 1. If the alarm occurs accidentally 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 technical support. 1. If the alarm occurs accidentally 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 technical support. 1. If the alarm occurs accidentally and the microinverter can still work normally, no special treatment is required. © 2021 Hoymiles Power Electronics Inc. All rights reserved. 18 MI-1000/MI-1200/MI-1500 305 306 307 308 Hardware Error Code 305 Hardware Error Code 306 Hardware Error Code 307 Hardware Error Code 308 2. If the alarm occurs frequently and cannot be recovered, contact your dealer or Hoymiles technical support. 1. If the alarm occurs accidentally 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 technical support. 1. If the alarm occurs accidentally 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 technical support. 1. If the alarm occurs accidentally 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 technical support. 1. If the alarm occurs accidentally 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 technical support. 6.2 Troubleshooting List (SN: 1060xxxxxxxx, 1061xxxxxxxx) Alarm Code 130 5041 5042 5043 5044 Alarm Name Offline Error code-04 Port1 Error code-04 Port2 Error code-04 Port3 Error code-04 Port4 Suggestion 1.Please make sure that the microinverter works normally. 2.Check the communication status between the DTU and hoymiles monitoring system or between 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. If the alarm occurs accidentally 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 technical support. 1. If the alarm occurs accidentally 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 technical support. 1. If the alarm occurs accidentally 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 technical support. 1. If the alarm occurs accidentally and the microinverter can still work normally, no special treatment is required. © 2021 Hoymiles Power Electronics Inc. All rights reserved. 19 MI-1000/MI-1200/MI-1500 5051 5052 5053 5054 5060 5070 5080 PV Input1 Overvoltage/Undervo ltage PV Input2 Overvoltage/Undervo ltage PV Input3 Overvoltage/Undervo ltage PV Input4 Overvoltage/Undervo ltage Abnormal bias Over temperature protection Grid Overvoltage/Undervo ltage 2. If the alarm occurs frequently and cannot be recovered, contact your dealer or Hoymiles technical support. 1.If the PV input voltage is too high, please make sure that the PV module open-circuit voltage is less than or equal to the maximum input voltage. 2.If the PV input voltage is too low or zero, please make sure that the PV module is connected to the microinverter and the connection is good. 3.If the PV input voltage is within the normal range, contact your dealer or Hoymiles technical support. 1.If the PV input voltage is too high, please make sure that the PV module open-circuit voltage is less than or equal to the maximum input voltage. 2.If the PV input voltage is too low or zero, please make sure that the PV module is connected to the microinverter and the connection is good. 3.If the PV input voltage is within the normal range, contact your dealer or Hoymiles technical support. 1.If the PV input voltage is too high, please make sure that the PV module open-circuit voltage is less than or equal to the maximum input voltage. 2.If the PV input voltage is too low or zero, please make sure that the PV module is connected to the microinverter and the connection is good. 3.If the PV input voltage is within the normal range, contact your dealer or Hoymiles technical support. 1.If the PV input voltage is too high, please make sure that the PV module open-circuit voltage is less than or equal to the maximum input voltage. 2.If the PV input voltage is too low or zero, please make sure that the PV module is connected to the microinverter and the connection is good. 3.If the PV input voltage is within the normal range, contact your dealer or Hoymiles technical support. 1. If the alarm occurs accidentally 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 technical support. 1. Check the ventilation and ambient temperature at the microinverter installation position. 2. If the ventilation is poor or the ambient temperature exceeds the limit, improve the ventilation and heat dissipation. 3. If both the ventilation and ambient temperature meet the requirements, contact your dealer or Hoymiles technical support. 1. If the alarm occurs accidentally, the grid voltage may be abnormal temporarily. The microinverter can recover automatically after grid voltage becomes normal. 2. If the alarm occurs frequently, check whether the grid voltage is within the acceptable range. If no, contact the local power operator or change the grid overvoltage or undervoltage protection limit via Hoymiles monitoring system with the consent of the local power operator. © 2021 Hoymiles Power Electronics Inc. All rights reserved. 20 MI-1000/MI-1200/MI-1500 5090 5100 5120 5150 5200 8310 9000 Grid Overfrequency/Unde rfrequency Island detected EEPROM reading and writing error 10 min value grid overvoltage Firmware error Shut down Microinverter is suspected of being stolen 1. If the alarm occurs accidentally, the grid frequency may be abnormal temporarily. The microinverter can recover automatically after grid frequency becomes normal. 2. If the alarm occurs frequently, check whether the grid frequency is within the acceptable range. If no, contact the local power operator or change the grid overfrequency or underfrequency protection limit via Hoymiles monitoring system with the consent of the local power operator. 1. If the alarm occurs accidentally, the grid voltage may be abnormal temporarily. The microinverter can recover automatically after grid voltage becomes normal. 2. If the alarms occur frequently on all the microinverters in your station, contact the local power operator to check whether there is a grid island. 3.If the alarm still exists, contact your dealer or Hoymiles technical support. 1. If the alarm occurs accidentally 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 technical support. 1. If the alarm occurs accidentally, the grid voltage may be abnormal temporarily. The microinverter can recover automatically after grid voltage becomes normal. 2. If the alarm occurs frequently, check whether the grid voltage is within the acceptable range. If no, contact the local power operator or change the grid overvoltage protection limit via Hoymiles monitoring system with the consent of the local power operator. 1.Check if the firmware is correct and upgrade again. 2.Check the communication between DTU and Hoymiles monitoring system, the communication between DTU and microinverter. Then try again. 3. If the fault still exists, contact your dealer or Hoymiles technical support. Please check if the microinverter is turned off by the zero export mode, otherwise please contact your dealer. Please check if the microinverter is stolen. If not, make sure that this microinverter is working normally and the communication between DTU and this microinverter is good. 6.3 Status LED Indicator (SN: 1062xxxxxxxx) The LED flashes five times at start up. All green flashes (1s gap) indicate normal start up. © 2021 Hoymiles Power Electronics Inc. All rights reserved. 21 MI-1000/MI-1200/MI-1500 (1) Start-up Process Flashing green five times (0.3s gap): Start-up success Flashing Red five times (0.3s gap): Start-up failure (2) Run Process Flashing Fast Green (1s gap): Producing power. Flashing Slow Green (2s gap): Producing power but one input is abnormal. Flashing Slow Green (4s gap): Producing power but there is no communication with DTU. Flashing Red (1s gap): Not producing power AC grid invalid (Voltage or frequency out of range). Flashing Red (0.5s gap): There is a fault except the abnormality of grid. (3) Other Status Flashing Red and Green alternately: Firmware is corrupted. *Note: All the faults are reported to the DTU, refer to the local APP of the DTU or Hoymiles Monitoring Platform for more information. 6.4 Status LED Indicator (SN: 1060xxxxxxxx, 1061xxxxxxxx) The LED flashes six times at start up. All green flashes indicate normal start up. Flashing Slow Green (2s gap): Producing power and communicating with DTU. Flashing Fast Green (4s gap): Producing power and not communicating with DTU. Flashing Red (1s gap): Not producing power AC grid invalid (Voltage or frequency out of range). 6.5 Insulation Resistance Detection There is a resistance sensor in the microinverter to measure the resistance between the outputs of PV module and the ground. If there is a problem with PV module insulation, DC wiring or connectors of the module and so on, the resistance between the outputs of the module and the ground may decrease. If this resistance drops below a preset threshold, the microinverter will stop producing power and report this ground fault. This fault will persist until it is cleared on Hoymiles Monitoring Platform. This fault will persist until the microinverter is rebooted. Please note that this fault cannot be cleared if the cause of the failure is still present. If the fault persists, contact your installer or Hoymiles for possible replacement. © 2021 Hoymiles Power Electronics Inc. All rights reserved. 22 MI-1000/MI-1200/MI-1500 6.6 On-site Inspection (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 Technical Data of this microinverter. 2. Check the connection to the utility grid. Verify utility power is present at the inverter in question by removing AC, then DC power. Never disconnect the DC wires while the microinverter is producing power. Re-connect the DC module connectors and watch for five short LED flashes. 3. Check the AC branch circuit interconnection between all the microinverters. Verify each inverter is energized by the utility grid as described in the previous step. 4. Make sure that any AC breaker are functioning properly and are closed. 5. Check the DC connections between the microinverter and the PV module. 6. Verify the PV module DC voltage is within the allowable range shown in appendix Technical Data of this manual. 7. If the problem persists, please call Hoymiles customer support. Warning Do not try to repair the microinverter. If the troubleshooting fails, please return it to the factory for replacement. 6.7 Routine Maintenance 1. Only authorized personnel are allowed to carry out the maintenance operations and are responsible to report any anomalies. 2. Always use the personal protective equipment provided by the employer when carry out the maintenance operation. 3. During normal operation, check that the environmental and logistic conditions are correct. Make sure that the conditions have not changed over time and that the equipment is not exposed to adverse weather conditions and has not been covered with foreign bodies. 4. DO NOT use the equipment if any problems are found, and restore the normal conditions after the fault removed. 5. Conduct an annual inspection on various components, and clean the equipment with a vacuum cleaner or special brushes. © 2021 Hoymiles Power Electronics Inc. All rights reserved. 23 MI-1000/MI-1200/MI-1500 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 internal repairs! The AC output wiring harness (AC drop cable on the Microinverter) cannot be replaced. If the cord is damaged the equipment should be scrapped. Maintenance operations must be carried out with the equipment disconnected from the grid (power switch open) and the photovoltaic modules obscured or isolated, unless otherwise indicated. For cleaning, do not use rags made of filamentary material or corrosive products that may corrode parts of the equipment or generate electrostatic charges. Avoid temporary repairs. All repairs should be carried out using only genuine spare parts. If all the microinverters connect to the DTU-Pro, the DTU can limit the output power imbalance of all the microinverters between phases to below 3.68kW if required. Please refer to "Hoymiles Technical Note Limit Phase Balance" for more details. Each branch should provide a circuit breaker, but no need for central protection unit. 6.8 Replace Microinverter a. How to remove the Microinverter. De-energize the AC branch circuit breaker. Remove the PV panel from the racking, and cover the panel. Using a meter to measure and make sure there is no current flowing in the DC wires between panel and microinverter. Use the DC disconnect tool to remove the DC connectors. Use the AC disconnect tool to remove the AC connectors. Un-screw the fixing screw on the top of the microinverter and remove the microinverter from the PV racking. b. How to replace the Microinverter: Please record down the new Microinverter's SN. Please make sure the AC branch circuit breaker if off, and following the Microinverter installation steps to install the replacement unit. Go to the monitoring platform (if customer already register this station online), please access the © 2021 Hoymiles Power Electronics Inc. All rights reserved. 24 MI-1000/MI-1200/MI-1500 "Device"page and find the device that you just replaced. Please click "Device maintenance"button to jump to the new page, and select "Device Replace". Enter the new Microinverter's SN and click "Ok"button to complete the replacement. 7. Decommissions 7.1 Decommissions Disconnect the inverter from DC input and AC output; remove all connection cable from the Microinverter; remove the Microinverter from the frame. Please pack the Microinverter with the original packaging, or use the carton box that can afford 5kg weight and can be fully closed if the original packaging is no longer available. 7.2 Storage and Transportation Hoymiles packages and protects individual components using suitable means to make the transport and subsequent handling easier. Transportation of the equipment, especially by road, must be carried out by suitable ways for protecting the components (in particular, the electronic components) from violent, shocks, humidity, vibration, etc. Please dispose the packaging elements in appropriate ways to avoid unforeseen injury. It is the customer's responsibility to examine the condition of the components transported. Once receiving the Microinverter, it is necessary to check the container for any external damage and verify receipt of all items. Call the delivering carrier immediately if damage or shortage is detected. If inspection reveals damage to the inverter, contact the supplier, or authorized distributor for a repair/return determination and instructions regarding the process. The microinverter storage temperature is -40-85. 7.3 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 characteristics that might damage the components of the equipment. © 2021 Hoymiles Power Electronics Inc. All rights reserved. 25 MI-1000/MI-1200/MI-1500 - Take a complete inspection when restarting after a long time or prolonged stop. - Please dispose the equipment properly after scrapping, which are potentially harmful to the environment, in accordance with the regulations in force in the country of installation. 8. Technical Data 9. Warning Be sure to verify the following before installing Hoymiles Microinverter System. Verify that the voltage and current specifications of the PV module must match those of the microinverter. The maximum open circuit voltage rating of the PV module must within the operating voltage range of the microinverter. The maximum current rating at MPP is recommended to be equal to or less than the maximum input DC current. But the maximum short circuit current must be equal to or less than the maximum input DC short circuit current. The output DC power of PV module is NOT recommended to exceed 1.35 times the output AC power of the microinverter. Refer to "Hoymiles Warranty Terms & Conditions" for more information. 8.1 DC Input Model Commonly used module power (W) Peak power MPPT voltage range (V) Start-up voltage (V) Operating voltage range (V) Maximum input voltage (V) Maximum input current (A) Maximum input short circuit current (A) Maximum backfeed current to array (A) MI-1000 Up to 310 (single panel) 27~48 22 16~60 60 4*10.5 4*15 MI-1200 Up to 380 (singe panel) 32~48 22 16~60 60 4*10.5 4*15 0 MI-1500 Up to 470 (singe panel) 36~48 22 16~60 60 4*11.5 4*15 8.2 AC Output Model Rated output power (W) Rated output current (A) MI-1000 1000 4.54@220V 4.35@230V 4.17@240V MI-1200 1200 5.45@220V 5.21@230V 5.00@240V MI-1500 1500 6.81@220V 6.52@230V 6.25@240V © 2021 Hoymiles Power Electronics Inc. All rights reserved. 26 MI-1000/MI-1200/MI-1500 Nominal output voltage/range (V) Nominal frequency/range (Hz) Power factor Output current harmonic distortion Maximum units per branch 220/180-275 220/180-275 220/180-275 230/180-275 230/180-275 230/180-275 240/180-275 240/180-275 240/180-275 45-55 (under 50Hz @ 220V & 230V) 55-65 (under 60Hz @ 220V & 230V) >0.99 <3% <3% <3% 5@220V 4@220V 3@220V 5@230V 4@230V 3@230V 5@240V 4@240V 3@240V 8.3 Efficiency, Safety and Protection Model Peak inverter efficiency CEC weighted efficiency Nominal MPPT efficiency Night time power consumption (mW) MI-1000 96.70% 96.50% 99.80% <50 MI-1200 96.70% 96.50% 99.80% <50 MI-1500 96.70% 96.50% 99.80% <50 8.4 Mechanical Data Model Ambient temperature range () Storage temperature range () Dimensions (W×H×D mm) Weight (kg) Enclosure rating Cooling Pollution degree MI-1000 MI-1200 MI-1500 -40 ~ +65 -40 ~ +65 -40 ~ +65 -40 ~ +85 -40 ~ +85 -40 ~ +85 280 x 176 x 33 3.75 3.75 3.75 Outdoor-NEMA (IP67) Natural convection No fans PD3 8.5 Features Model Topology Communication Monitoring Warranty Compliance MI-1000 MI-1200 MI-1500 High-Frequency Transformers 2.4GHz Proprietary RF(Nordic) Hoymiles Monitoring System (Hoymiles DTU is required) 12 years standard, 25 years optional IEC61727, IEC62116, IEC61683, VFR2019, VDE0126-1-1, IEC/EN 62109-1/-2, IEC/EN 61000-3- 2/-3, IEC/EN-61000-6-1/-2/-3/-4 *Note: Voltage and frequency ranges can be extended beyond nominal if required by the utility. © 2021 Hoymiles Power Electronics Inc. All rights reserved. 27 Appendix 1: Installation Map MI-1000/MI-1200/MI-1500 © 2021 Hoymiles Power Electronics Inc. All rights reserved. 28 Appendix 2: WIRING DIAGRAM 230VAC SINGLE PHASE: © 2021 Hoymiles Power Electronics Inc. All rights reserved. BRANCH END CAP UP TO 3 MI-1500s PER AC BRANCH CIRCUIT PHASE-L1 AC BRANCH CABLE BROWN - L BLUE - N YELLOW&GREEN - G AC DISTRIBUTION PANEL OR SUBPANEL GROUND NEUTRAL L1 ETHERNET CONNECTION TO BROADBAND ROUTER DTU UP TO 24 MI-1500s CONNECTION TO DTU 5V POWER ADAPATER W METER MI-1000/MI-1200/MI-1500 29 WIRING DIAGRAM 230VAC / 400VAC THREE PHASE: © 2021 Hoymiles Power Electronics Inc. All rights reserved. UP TO 3 MI-1500s PER AC BRANCH CIRCUIT UP TO 3 MI-1500s PER AC BRANCH CIRCUIT BRANCH END CAP UP TO 3 MI-1500s PER AC BRANCH CIRCUIT PHASE-L1 PHASE-L2 AC BRANCH CABLE BROWN - L BLUE - N YELLOW&GREEN - G AC DISTRIBUTION PANEL OR SUBPANEL GROUND NEUTRAL L1 L2 L3 PHASE-L3 W METER MI-1000/MI-1200/MI-1500 ETHERNET CONNECTION TO BROADBAND ROUTER DTU UP TO 24 MI-1500s CONNECTION TO DTU 5V POWER ADAPATER 30 WIRING DIAGRAM 120VAC / 240VAC SPLIT PHASE: © 2021 Hoymiles Power Electronics Inc. All rights reserved. BRANCH END CAP UP TO 3 MI-1500s PER AC BRANCH CIRCUIT PHASE-L1&L2 AC BRANCH CABLE BROWN - L BLUE - N YELLOW&GREEN - G AC DISTRIBUTION PANEL OR SUBPANEL GROUND NEUTRAL L1 L2 ETHERNET CONNECTION TO BROADBAND ROUTER DTU UP TO 24 MI-1500s CONNECTION TO DTU 5V POWER ADAPATER W METER MI-1000/MI-1200/MI-1500 31 WIRING DIAGRAM 120VAC / 208VAC THREE PHASE: © 2021 Hoymiles Power Electronics Inc. All rights reserved. UP TO 3 MI-1500s PER AC BRANCH CIRCUIT UP TO 3 MI-1500s PER AC BRANCH CIRCUIT BRANCH END CAP UP TO 3 MI-1500s PER AC BRANCH CIRCUIT PHASE-L1&L2 AC BRANCH CABLE BROWN - L BLUE - N YELLOW&GREEN - G PHASE-L1&L3 AC DISTRIBUTION PANEL OR SUBPANEL GROUND NEUTRAL L1 L2 L3 PHASE-L2&L3 W METER MI-1000/MI-1200/MI-1500 ETHERNET CONNECTION TO BROADBAND ROUTER DTU UP TO 24 MI-1500s CONNECTION TO DTU 5V POWER ADAPATER 32