hoymiles HM-1000T Single-Phase Microinverter User Manual

User Manual for hoymiles models including: HM-1000T, HM-1200T, HM-1500T, HM-1000T Single-Phase Microinverter, HM-1000T, Single-Phase Microinverter

Single-phase Microinverter USER MANUAL

Open Energy for All Single-phase Microinverter USER MANUAL HM-1000T HM-1200T HM-1500T Region: North America V202105 hoymiles.com

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Open Energy for All

Single-phase Microinverter
USER MANUAL

Region: North America V202105

HM-1000T HM-1200T HM-1500T
hoymiles.com

Single-phase Microinverter User Manual
About Microinverter
This system is composed of a group of microinverters that convert direct current (DC) into alternating current (AC) and feed it into the public grid. The system is designed for the incorporation of one microinverter per two PV modules. Each microinverter works independently and guarantees the maximum power generation of each PV module. This setup enables the user to directly control the production of a single PV module, consequently improving the flexibility and reliability of the system.
About the Manual
This manual contains important instructions for the HM-1000T/HM-1200T/HM-1500T Microinverter and must be read in its entirety before installing or commissioning the equipment. For safety purposes, only a qualified technician who has received training or has demonstrated competence may install and maintain this microinverter under the guidance of this document.
Other Information
Product information is subject to change without notice. This user manual will be frequently updated. Please refer to Hoymiles official website at www.hoymiles.com for the latest version.

Single-phase Microinverter User Manual
CONTENTS

1. Important Notes

1.1 Product Range

1.2 Target User

1.3 Symbols Used

2. About Safety

2.1 Important Safety Instructions

2.2 Explanation of Symbols

2.3 Radio Interference Statement

3. About Product

3.1 About 4-in-1 Unit

3.2 Highlights

3.3 Terminals Introduction

3.4 Dimension (mm)

4. About Function

4.1 Work Mode

5. About Installation

5.1 Accessories

5.2 Installation Precautions

5.3 Required Space Distance

5.4 Grounding Considerations

5.5 Preparation

5.6 Pre-installation

5.7 Installation Steps

6. Troubleshooting

6.1 Troubleshooting List

6.2 Status LED Indicator

6.3 Insulation Resistance Detection

6.4 On-site Inspection (for qualified installer only)

6.5 Routine Maintenance

6.6 Microinverter Replacement

7. Decommissioning

7.1 Decommissioning

7.2 Storage and Transportation

7.3 Disposal

8. Technical Data

8.1 DC Input

8.2 AC Output

8.3 Efficiency, Safety and Protection

8.4 Mechanical Data

8.5 Features

Single-phase Microinverter User Manual

Appendix 1:

Installation Map

Appendix 2:

WIRING DIAGRAM 230 VAC SINGLE-PHASE:

WIRING DIAGRAM 230 VAC / 400 VAC THREE-PHASE:

WIRING DIAGRAM 120 VAC / 240 VAC SPLIT-PHASE:

WIRING DIAGRAM 120 VAC / 208 VAC THREE-PHASE:

Single-phase Microinverter User Manual

1. Important Notes
1.1 Product Range
This manual describes the assembly, installation, commissioning, maintenance and failure search for the following models of Hoymiles Microinverter:
· HM-1000T · HM-1200T · HM-1500T *Note: "1000" means 1000 W, "1200" means 1200 W, "1500" means 1500 W.
1.2 Target User
For safety purposes, only a qualified technician who has received training or has demonstrated competence may install and maintain this microinverter under the guidance of this document.
1.3 Symbols Used
The safety symbols in this user manual are shown below.

Symbol

Usage

Indicates a hazardous situation that can result in deadly electric shock hazards, other serious physical injury, or fire hazards.

Indicates directions which must be fully understood and followed in their entirety to avoid potential safety hazards, including equipment damage or personal injury.
Indicates that the described operation must not be carried out. The reader should stop, use with caution and fully understand the operations explained before proceeding.

Single-phase Microinverter User Manual
2. About Safety
2.1 Important Safety Instructions
The HM-1000T/HM-1200T/HM-1500T Microinverter is designed and tested according to international safety requirements. However, certain safety precautions must be taken when installing and operating this microinverter. The installer must read and follow all instructions, precautions and warnings in this installation manual.
· All operations including transport, installation, start-up and maintenance must be carried out by qualified and trained personnel.
· Before installation, check the unit to ensure that it is free of any transport or handling damage, which could affect insulation integrity or safety clearances. Choose an installation location carefully and adhere to the specified cooling requirements. Unauthorized removal of necessary protections, improper use, and incorrect installation and operation may result in 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 obtain the 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 Overcurrent Protection Devices (OCPD).
· Only one PV module can be connected to one input of the microinverter. Do not connect batteries or other power supply sources. The microinverter can be used only if all the technical characteristics are observed and applied.
· Do not install the equipment in adverse environments, such as environments that are flammable, explosive, corrosive, extremely hot or cold, or humid. Do not use the equipment when the safety devices do not work or are disabled.
· Always use personal protective equipment, including gloves and eye protection, while installing.
· Inform the manufacturer of non-standard installation conditions.
· Do not use the equipment if any anomalies are discovered while operating. Avoid temporary repairs.
· All repairs should be carried out by 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.
· Any liability arising from commercial components are delegated to their respective manufacturers.
· Any time the microinverter has been disconnected from the public network, please be extremely cautious, as some components can retain charge sufficient to create a shock hazard. Prior to touching any part of the microinverter, please ensure that surfaces and equipment are under safe touch temperatures and voltage potentials before proceeding.
· Hoymiles accepts no liability for damage due to incorrect or improper operation.
· Electrical Installation & Maintenance shall be conducted by a licensed electrician and shall comply with local wiring regulations.

Single-phase Microinverter User Manual

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 separately collected 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.
Caution Do not come within 8 inches 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 microinverter can become hot while operating. Avoid contact with metal surfaces while operating.
CE mark The microinverter 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 provides 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 such interference will not occur during a particular installation.
To confirm that the radio or television reception is affected by interference from this equipment, turn the equipment off and on to test it. If this equipment causes harmful interference to the radio or television equipment, try to correct the interference through 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 a shield between the microinverter and the receiving antenna, such as a metal / concrete roof.
4) Contact your dealer or an experienced radio/TV technician for help.

Single-phase Microinverter User Manual
3. About Product
3.1 About 4-in-1 Unit
"Daisy-Chain 4-in-1 Unit Microinverter" with ultra-wide DC input operating voltage range (16 V60 V) and low start-up voltage (22 V only). The Hoymiles 4-in-1 Unit Microinverter HM-1000T/HM-1200T/HM-1500T is a reliable solution for PV systems with an uneven number of panels, and offers high CEC weighted efficiency 96.50% (peak efficiency 96.70%) in 2015.
3.2 Highlights
· Maximum output power up to 1000 W/1200 W/1500 W. Adapted to 60-cell & 72-cell 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: NEMA 6 (IP67) enclosure. 6000 V surge protection.
3.3 Terminals Introduction

Object A B C
3.4 Dimension (mm)

Description AC Connector DC Connector AC Connectors

Unit: mm

Single-phase Microinverter User Manual
4. About Function
4.1 Work Mode
Normal: In this mode, the microinverter operates normally and converts DC power into AC power to support the household loads and feeds into the public grid. Zero Export Control: In this mode, the microinverter's generation is limited based on the current household loads, and there is no extra power fed into the public grid. Standby: There are several circumstances in which the microinverter will be in Standby mode: · The current condition contradicts with the microinverter operating requirements. · No household loads or the export control value has been set as "0" on the DTU in the Zero Export Control
mode.

Single-phase Microinverter User Manual
5. About Installation
5.1 Accessories

Object

Description

AC Bus Cable, 12/10 AWG Cable

DC Extension Cable, 1 m

M8 × 25 Screws

AC Connector Unlocking Tool

Bus Connector Unlocking Tool

AC Sub Cap

AC Bus End Cap, IP67

*Note: All accessories listed above are not included in the package, and need to be purchased separately. Please contact our sales representative for pricing information. (M8 screws need to be prepared by installer-self.)

5.2 Installation Precautions

Please install the microinverter and all DC connections under the PV module to avoid direct sunlight, rain exposure, snow pile-up, 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 local grid regulations (e.g. G98/99 for UK).

Single-phase Microinverter User Manual
5.3 Required Space Distance

If the microinverters are installed on

a concrete roof or steel roof, their

communication with the DTU may be

slightly affected. Under such installation

conditions, it is better for the microinverters

to be installed 50 cm above the roof.

Otherwise, more DTUs may be required to 50 cm
ensure communication quality between the

DTUs and the microinverters.

Ground

5.4 Grounding Considerations
This microinverter is a Class I equipment with a basic isolation transformer, and this microinverter must be earthed. There is an earth wire inside the AC cable, so usually grounding can be done by directly using this wire. If the utility has any special requirements, grounding can be done by affixing the mounting bracket to the racking.
5.5 Preparation
Installation of this equipment is carried out based on the system design and the place in which the equipment is installed.
· Installation must be carried out with the equipment disconnected from the grid (power disconnect switch on) and with the PV modules shaded or isolated.
· Refer to the Technical Data to ensure that the environmental conditions fit the requirements of the microinverter (degree of protection, temperature, humidity, altitude, etc.)
· To avoid power de-rating due to an increase in the internal temperature of the microinverter, do not expose it to direct sunlight.
· To avoid overheating, always make sure that the air flow around the microinverter is not blocked.
· Do not install in places where gases or flammable substances may be present.
· Avoid electromagnetic interference that can compromise the correct operation of electronic equipment.
When choosing the installation position, comply with the following conditions:

· Only install on structures specifically conceived for PV modules (supplied by installation technicians).
· Install the microinverter underneath the PV modules to make sure that it operates in a shaded or shadowed environment. If this condition cannot be met, it may trigger the microinverter production derating.

Fig.1 Microinverter installation position

Single-phase Microinverter User Manual
5.6 Pre-installation
A) Plan the cable length to make the bus cable aligned with each PV module. B) Install the AC bus end cap:
· Use the bus connector unlocking tool to unlock the port upper cover.
· Loosen the three screws with a screwdriver. Untighten the cap as circled below, and remove the extra cable.
· Screw the cap back into the port, and insert the AC bus end cap.
· Plug the upper cover back to the bus connector.
5.7 Installation Steps Step 1. Attach Microinverter on 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
(as shown in the picture below), and tighten the screw. The silver cover side of the microinverter should be facing the panel. *Note: Please install the microinverter at least 50 cm above the ground/roof for better communication with the Hoymiles DTU. Step 2. Complete AC Connection
A) Attach the AC bus cable to the mounting rail, and affix the cable with ties.
B) Push the AC connector of the microinverter into the trunk cable connector until you hear a clicking sound.
C) If there is any vacant bus port, please insert the AC sub cap in the vacant plug to ensure waterproofing and dustproofing.

Single-phase Microinverter User Manual

*Note: Under circumstances that require removing the inverter AC cable from bus port, please use the AC connector unlocking tool and insert the tool into the side of the AC port.
Step 3. Install AC End Cable

A) Prepare an AC end cable with proper length and insert one side of the cable into the cap. Match the L, N and Ground lines into the appropriate slots. Tighten the screws, and then reinsert the cap tightly in the port. Plug the upper cover back to the bus connector.

Coated with solder

B) 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 label from each microinverter (the position of the label is shown below).

B) Affix the serial number label to the respective location on the installation map.

N S E W (circle one)

Panel Group: Azimuth: Tilt: Sheet _ of _

Customer Information:

DTU Serial Number:

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
minutes of waiting time.

Single-phase Microinverter User Manual
Step 7. Set Up the Monitoring System Refer to the DTU User Manual or DTU Quick Installation Guide, and Quick Installation Guide for S-Miles Cloud (Hoymiles Monitoring Platform) Online Registration to install the DTU and set up the monitoring system. Product information is subject to change without notice. (Download reference manuals at www.hoymiles. com.)

Single-phase Microinverter User Manual
6. Troubleshooting
This microinverter can only work with the new Hoymiles DTU (DTU-Pro, DTU-Lite and DTU-W100/DTU-G100) with the following serial number.

Model
DTU-Pro
DTU-G100 DTU-W100 DTU-Lite

Serial Number 10F7xxxxxxxx 10F8xxxxxxxx 10FAxxxxxxxx 10D2xxxxxxxx 10D3xxxxxxxx 10D6xxxxxxxx

6.1 Troubleshooting List

Alarm Code 121 125 126 127 128 129 130

Alarm Name
Over temperature protection
Grid configuration parameter error
Software error code 126
Firmware error
Software error code 128
Software error code 129
Offline

Suggestion
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 Service Center.
1. Check if the grid configuration parameter is correct and upgrade again.
2. If the fault still exists, contact your dealer or Hoymiles Technical Service Center.
1. If the alarm occurs accidentally and the microinverter can still function normally, no special treatment is required.
2. If the alarm occurs frequently and cannot be restored, contact your dealer or Hoymiles Technical Service Center.
1. Check if the firmware is correct and upgrade again. 2. Check the communication between the DTU and Hoymiles Monitoring
System, as well as the communication between the DTU and the microinverter. Then try again. 3. If the fault still exists, contact your dealer or Hoymiles Technical Service Center.
1. If the alarm occurs accidentally and the microinverter can still function normally, no special treatment is required.
2. If the alarm occurs frequently and cannot be restored, contact your dealer or Hoymiles Technical Service Center.
1. If the alarm occurs accidentally and the microinverter can still function normally, no special treatment is required.
2. If the alarm occurs frequently and cannot be restored, contact your dealer or Hoymiles Technical Service Center.
1. Please check if the microinverter works normally. 2. Check the communication status between the DTU and Hoymiles
Monitoring System, or between the DTU and the microinverter. Try to make improvements if the communication is poor. 3. If the alarm occurs frequently and cannot be restored, contact your dealer or Hoymiles Technical Service Center.

Single-phase Microinverter User Manual

1. If the alarm occurs accidentally, the grid voltage may be temporarily abnormal. The microinverter will automatically recover after grid voltage returns to normal.

141

Grid overvoltage

2. If the alarm occurs frequently, check whether the grid voltage is

within the acceptable range. If it is not, contact the local power

operator or change the grid overvoltage protection limit via the

Hoymiles Monitoring System after obtaining the consent of the local

power operator.

1. If the alarm occurs accidentally, the grid voltage may be temporarily

abnormal. The microinverter will automatically recover after grid

Grid overvoltage

voltage returns to normal.

142

(10-minute average

2. If the alarm occurs frequently, check whether the grid voltage is

value)

within the acceptable range. If it is not, contact the local power operator or change the grid overvoltage protection limit via the

Hoymiles Monitoring System after obtaining the consent of the local

power operator.

1. If the alarm occurs accidentally, the grid voltage may be temporarily abnormal. The microinverter will automatically recover after grid voltage returns to normal.

2. If the alarm occurs frequently, check whether the grid voltage is

143

Grid undervoltage

within the acceptable range. If it is not, contact the local power

operator or change the grid undervoltage protection limit via the

Hoymiles Monitoring System after obtaining 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 temporarily abnormal. The microinverter will automatically recover after grid frequency returns to normal.

144

Grid overfrequency

2. If the alarm occurs frequently, check whether the grid frequency

is within the acceptable range. If it is not, contact the local power

operator or change the grid overfrequency protection limit via the

Hoymiles Monitoring System after obtaining the consent of the local

power operator.

1. If the alarm occurs accidentally, the grid frequency may be temporarily abnormal. The microinverter will automatically recover after grid frequency returns to normal.

145

Grid underfrequency

2. If the alarm occurs frequently, check whether the grid frequency

is within the acceptable range. If it is not, contact the local power

operator or change the grid underfrequency protection limit via the

Hoymiles Monitoring System after obtaining the consent of the local

power operator.

1. If the alarm occurs accidentally, the grid frequency may be

temporarily abnormal. The microinverter will automatically recover

after grid frequency returns to normal.

146

Rapid grid frequency changes

2. If the alarm occurs frequently, check whether the grid frequency change rate is within the acceptable range. If it is not, contact the

local power operator or change the grid frequency change rate limit

via the Hoymiles Monitoring System after obtaining the consent of

the local power operator.

147

Power grid outage

Please check whether there is a power grid outage.

148

Grid disconnection

Please check whether the AC switch or AC wiring functions normally.

1. If the alarm occurs accidentally, the grid voltage may be temporarily abnormal. The microinverter will automatically recover after grid voltage returns to normal.

149

Island detected

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 Service Center.

Single-phase Microinverter User Manual

1. Please make sure that the PV module open-circuit voltage is less than

or equal to the maximum input voltage.

205

Input port overvoltage

2. If the PV module open-circuit voltage is not within the normal range,

contact your dealer or Hoymiles Technical Service Center.

1. Please make sure that the PV module open-circuit voltage is less than

207

Input port undervoltage

or equal to the maximum input voltage. 2. If the PV module open-circuit voltage is not within the normal range,

contact your dealer or Hoymiles Technical Service Center.

1. Please confirm whether this port is connected to the PV module.

209

Port no input

2. If the PV module is connected, please check the DC cable connection

between this port and the PV module.