Hoymiles HYS-3.0LV-EUG1 User manual

Open Energy for All
USER MANUAL
HYS-3.0LV-EUG1/AUG1
HYS-3.6LV-EUG1/AUG1
HYS-4.6LV-EUG1/AUG1
HYS-5.0LV-EUG1/AUG1
HYS-6.0LV-EUG1/AUG1
HAS-3.0LV-EUG1/AUG1
HAS-3.6LV-EUG1/AUG1
HAS-4.6LV-EUG1/AUG1
HAS-5.0LV-EUG1/AUG1
Region: Global REV1.1 hoymiles.com

Hybrid Inverter User Manual
© 2023 Hoymiles Power Electronics Inc. All rights reserved. 01
CONTENTS
1. Safety Introduction 02
1.1 Explanation of Symbols 02
1.2 Safety Information 03
2. Product Introduction 05
2.1 Product Overview 05
2.2 Operating Modes 07
2.3 System Diagram 09
2.3.1 Basic Diagram 10
2.3.2 Retrot System 14
2.3.3 Unacceptable Diagram 15
3. Installation Instruction 16
3.1 Packing List 16
3.2 Installation Tools 17
3.3 Mounting 18
3.3.1 Selecting the Mounting Location 18
3.3.2 Mounting Inverter 19
3.4 Electrical Wiring Connection 19
3.4.1 Grounding Connection 19
3.4.2 AC Wiring Connection 20
3.4.2.1 Grid Connection 20
3.4.2.2 GEN Connection 21
3.4.2.3 EPS Connection 21
3.4.3 PV Wiring Connection 23
3.4.4 Battery Wiring Connection 24
3.4.5 Communication Wiring Connection 25
3.4.5.1 BMS Connection 26
3.4.5.2 Smart Meter and CT Connection 27
3.4.5.3 DRM Connection 28
3.4.5.4 DI Connection 29
3.4.5.5 DO Connection 30
3.4.5.6 Parallel Connection 30
3.4.6 DTS Connection 31
3.5 Operation 32
3.5.1 S-Miles Cloud App 32
3.5.1.1 DTS Online Setting 32
3.5.1.2 System Commissioning of Wireless Access Point (AP) Connection 33
3.5.2 Commissioning 35
3.5.3 Decommissioning 35
4. Troubleshooting 36
5. Technical Datasheet 39
5.1 HYS Series Technical Parameters 39
5.2 HAS Series Technical Parameters 43
Appendix A 47

Hybrid Inverter User Manual
© 2023 Hoymiles Power Electronics Inc. All rights reserved. 02
1. Safety Introduction
1.1 Explanation of Symbols
The following types of safety precautions and general information symbols used in this manual must be
followed during the installation, operation and maintenance of the inverter.
Symbol Usage
Indicates a hazard with a high level of risk that, if not avoided, will result in
death or serious injury.
Indicates a hazard with a medium level of risk that, if not avoided, can result in
death or serious injury.
Indicates a hazard with a low level of risk that, if not avoided, can result in
minor or moderate injury.
Indicates a situation that, if not avoided, can result in property damage.
NOTICE is used to address practices not related to personal injury.
Caution! Failure to observe any warnings contained in this manual may result
in injury.
Danger to life due to high voltages!
Only qualified personnel can open and maintain the inverter.
Burn danger due to hot surface that may exceed 60℃.
Refer to the operating instructions.
10min
After the inverter is turned off, wait for at least 10 minutes before opening the
inverter or touching live parts.
Products shall not be disposed as household waste.
CE mark.
UKCA mark.
DANGER
WARNING
CAUTION
NOTICE

Hybrid Inverter User Manual
© 2023 Hoymiles Power Electronics Inc. All rights reserved. 03
This side up! This package must always be transported, handled and stored in
such a way that the arrows always point upwards.
Fragile - The package/product should be handled carefully and should never
be tipped over or slung.
Keep dry! The package/product must be protected from excessive humidity
and must be stored under cover.
6No more than six (6) identical packages are to be stacked on each other.
1.2 Safety Information
This chapter contains important safety and operating instructions. For future reference, please read and
keep this manual.
For the purpose of preventing personal injury and property damage, as well as ensuring the long-term
operation of the product, please read and follow all the instructions and cautions on the inverter and in this
user manual during installation, operation and maintenance.
Safety instructions in this manual cannot cover all precautions that should be taken. Please consider the
actual conditions on site when performing operations. Any damage caused by a violation of the safety
instructions in this manual shall not be the responsibility of Hoymiles.
Symbol Usage
Danger to life from electric shock
• Before performing any work on the inverter, disconnect all DC and AC power
from inverter and wait for at least 10 minutes. Hazardous voltage will exist
for up to 10 minutes after disconnection from power supply.
• Never insert or remove the AC or DC connections when the inverter is
running.
• Any live parts connected to battery ports cannot be touched before removing
all the power from inverter for 10 minutes because there is still danger to life
even battery voltage is lower than 60 V.
• Do not touch DC conductors or any non-isolated cable ends.
• The mounting location must be inaccessible to children.
• Never touch either the positive or negative pole of PV connecting device.
Strictly prohibit touching both at the same time.
WARNING
Risk of burns from hot surfaces
• The surface of the inverter might exceed 60℃, and touching the surface may
result in burns.
• Do not touch hot surfaces before it cools down.
DANGER

Hybrid Inverter User Manual
© 2023 Hoymiles Power Electronics Inc. All rights reserved. 04
WARNING
• Only authorized service personnel are allowed to install the inverter or
perform servicing and maintenance.
• All powers, both AC and DC, should be disconnected from inverter before
attempting any maintenance, cleaning or working on any circuits connected
to inverter.
• Attempting to service the inverter yourself may result in a risk of electric
shock or fire and will void your warranty.
• Keep away from flammable and explosive materials to avoid fire disaster.
• The installation place should be away from humid or corrosive substances.
• The unit contains capacitors that remain charged to a potentially lethal
voltage after the mains, battery and PV supply have been disconnected.
• When accessing the internal circuit of inverter, wait for at least 10 minutes
after disconnecting the power.
• The inverter has a transformerless design on PV side. Neither positive nor
negative terminals of PV panels should be grounded.
• The frames of PV panels should be grounded for safety reasons.
• Ensure that existing wiring is in good condition and no wire is undersized.
• Do not disassemble any parts of inverter which are not mentioned in
installation.
• Authorized service personnel must use insulated tools when installing or
working with this equipment.
• PV modules shall have an IEC 61730 class A rating.
• The minimum rated temperature of the wire used is 90℃ (194℉).
• All electrical connections must be in accordance with local and national
standards.
• Only with permission of the local utility grid company, the inverter can be
connected to the utility grid.
• Do not open the inverter cover or change any components without
authorization, otherwise the warranty commitment for the inverter will be
invalid.
• Appropriate methods must be adopted to protect inverter from electrostatic
discharge; any damage caused by ESD is not warranted by the manufacturer.
• Prior to the application, please read this section carefully to ensure the
correct and safe application. Please keep the user manual properly.
• The manual contains no instructions for user-serviceable parts. See Warranty
for instructions on obtaining service.
• If an error occurs, contact your local distributor or qualified electricians.
CAUTION
NOTICE

Hybrid Inverter User Manual
© 2023 Hoymiles Power Electronics Inc. All rights reserved. 05
2. Product Introduction
2.1 Product Overview
The HYS-LV series is a high-performance single-phase hybrid inverter with excellent reliability. The HAS-LV
series is designed for retrofitting PV systems. The intelligent EMS function supports self-consumption,
economic, and backup modes for multi-scenario applications. Monitoring management through S-Miles
Cloud allows users to remotely diagnose and track the system performance over time, offering superior
energy production.
H
I
J
K
A B CD E F G
* The image shown here is for reference only. The actual product received may differ.
Object Description
ADC Switch(1) (2)
BPV Terminals(3)
CBattery Terminals
DData Transfer Stick (DTS) Port
ECommunication Port
F GRID Connector
G Generator (GEN) Connector
H LED Indicators
I Label
JEmergency Power Supply (EPS) Connector
K PE Terminal
(1) Only for HYS series inverters.
(2) For HYS-LV-AUG1 series inverters, it has a DC switch lock.
(3) Only for HYS series inverters.

Hybrid Inverter User Manual
© 2023 Hoymiles Power Electronics Inc. All rights reserved. 06
LED Indicators
Indicator Status Explanation
SOC
Full circle LEDs on – SOC is 75-100%
3/4 circle LEDs on – SOC is 50-75%
2/4 circle LEDs on – SOC is 25-50%
1/4 circle LED on – SOC is 10-25%
1/4 circle LED blink – SOC is below 10%
All circle LEDs off – No BMS communication
RUN
Off – Inverter is shut down
Blink 1 – Inverter is booting
Blink 2 – Inverter is in bypass mode
On – Inverter is turned on
PV
(Only for HYS)
Off – PV voltage is low
Blink 1 – PV power is low
On – PV is generating power
AC
Off – Grid is disconnected and EPS is off
Blink 1 –Grid is disconnected but EPS is on
On – Grid is connected
COM
Off – Communication error of both meter and BMS
Blink 1 – Meter communication failure
Blink 2 – BMS communication failure
On – BMS and meter communications are normal
FAULT
Off – No fault
On - A fault happens
Blink 1 – EPS port overload
Blink 2 – ISO/RCD fault
Blink 3 – Arc fault

Hybrid Inverter User Manual
© 2023 Hoymiles Power Electronics Inc. All rights reserved. 07
2.2 Operating Modes
Main Operation Modes
The following operation modes are applicable for the HYS series inverter, and are also applicable for the
HAS series inverter which is connected with the PV inverter through the GEN port.
Self-consumption
Mode
In the daytime, solar energy
supports the loads first and
surplus energy is stored in the
battery. When the battery is fully
charged or reaches the maximum
charge power, the rest energy
is fed into grid (or limited if
required).
At night, the battery discharges for
the loads firstly and the grid will
supply the loads once the battery
power is not enough. In this mode,
battery cannot be charged from
grid at night.
Power flow of self-consumption mode
Economic Mode
In this mode, the time of battery
charge and discharge needs to be
set. Meanwhile, the battery can
be forced to charge from the grid
during the preset charge time.
For instance, the battery could be
charged or discharged according
to valley or peak electricity price.

Hybrid Inverter User Manual
© 2023 Hoymiles Power Electronics Inc. All rights reserved. 08
Power flow of economic mode
Back-up Mode
In case of frequent power outages,
a backup power SOC can be
configured, which ensures that the
battery always has enough energy
to handle critical loads.
Power flow of back-up mode

Hybrid Inverter User Manual
© 2023 Hoymiles Power Electronics Inc. All rights reserved. 09
2.3 System Diagram
The HYS-LV series inverter can be connected to a battery and PV panels to form a PV Energy Storage
System (ESS). In the event of a grid outage, it can be used as an emergency power supply (EPS) through the
self-consumption of solar energy. It can either form a DC-coupled system for a new installation or an AC-
coupled system to retrofit existing installations.
• This diagram is a simplified system sketch that is only intended to explain
system architecture.
• Please refer to https://www.hoymiles.com for compatible battery list,
and the user should first contact Hoymiles for technical consultation and
obtain official confirmation prior to installing any battery not included in
the official published list.
• Lead-acid battery is not recommended for general customers as it requires
experienced installers and technicians who can fully understand the
battery parameters and configure the setting and installations correctly.
Please contact Hoymiles for technical support on lead-acid battery
installation.
NOTICE
The HAS-LV series inverter can be connected to a battery and any grid-connectd PV inverters to form a PV
Energy Storage System (ESS). In the event of a grid outage, it can be used as an emergency power supply
(EPS) through the self consumption of solar energy, as the grid-connected PV inverter can also work when
it is connected to the GEN port even if there is a grid outage.

Hybrid Inverter User Manual
© 2023 Hoymiles Power Electronics Inc. All rights reserved. 10
2.3.1 Basic Diagram
• This diagram is an example of application in which the neutral connects
with PE in distribution box.
• For countries such as Australia, New Zealand, South Africa, etc., please
follow local wiring regulations!
NOTICE
Model ① ② ③ ④ ⑤ ⑥⑦
HYS-3.0LV-G1 100 A/60 V
DC Breaker
20 A/230 V
AC Breaker
40 A/230 V
AC Breaker
Depends
on Loads
Main
Breaker 30 mA RCD
HYS-3.6LV-G1 125 A/60 V
DC Breaker
20 A/230 V
AC Breaker
40 A/230 V
AC Breaker
HYS-4.6LV-G1 125 A/60 V
DC Breaker
25 A/230 V
AC Breaker
40 A/230 V
AC Breaker
HYS-5.0LV-G1 125 A/60 V
DC Breaker
32 A/230 V
AC Breaker
40 A/230 V
AC Breaker
HYS-6.0LV-G1 125 A/60 V
DC Breaker
40 A/230 V
AC Breaker
40 A/230 V
AC Breaker
A. Diagram for Australia, New Zealand, South Africa, etc. (for HYS series inverters)
Note:
• If the battery integrates a readily accessible internal DC breaker, no additional ① DC breaker is required.
• ⑥⑦ 30 mA RCD is recommended but not mandatory; please comply with local regulation.
HYS-LVSeries
E-BAR
PE
L
N
L
N
PE
L
N
PE
L
N
L N
PE
PE
①③
④
⑤
Do not connect this terminal
when the neutral wire and PE
wire are connected together.
E-N
Link
N-BAR
⑦
LOAD GRID
②
⑥
EPS
GRID
PV
Battery
Grid
Backup
Loads
Normal Loads
RCD
RCD
Utility
Meter
Smart
Meter
Distribution Box
Meter
BMS
CT
or

Hybrid Inverter User Manual
© 2023 Hoymiles Power Electronics Inc. All rights reserved. 11
• This diagram is an example of application in which the neutral is separated
from the PE in the distribution box.
• For countries such as China, Germany, Italy, etc., please follow local wiring
regulations!
• The back-up PE line and earthing bar must be grounded properly and
effectively. Otherwise, the back-up function may be abnormal when the
grid fails.
Model ① ② ③ ④ ⑤ ⑥⑦
HYS-3.0LV-G1 100 A/60 V
DC Breaker
20 A/230 V
AC Breaker
40 A/230 V
AC Breaker
Depends
on Loads
Main
Breaker 30 mA RCD
HYS-3.6LV-G1 125 A/60 V
DC Breaker
20 A/230 V
AC Breaker
40 A/230 V
AC Breaker
HYS-4.6LV-G1 125 A/60 V
DC Breaker
25 A/230 V
AC Breaker
40 A/230 V
AC Breaker
HYS-5.0LV-G1 125 A/60 V
DC Breaker
32 A/230 V
AC Breaker
40 A/230 V
AC Breaker
HYS-6.0LV-G1 125 A/60 V
DC Breaker
40 A/230 V
AC Breaker
40 A/230 V
AC Breaker
NOTICE
Note:
• If the battery integrates a readily accessible internal DC breaker, no additional ① DC breaker is required.
• ⑥⑦ 30 mA RCD is recommended but not mandatory; please comply with local regulation.
B. Diagram for Other Countries (for HYS series inverters)

Hybrid Inverter User Manual
© 2023 Hoymiles Power Electronics Inc. All rights reserved. 12
• This diagram is an example of application in which the neutral connects
with PE in distribution box.
• For countries such as Australia, New Zealand, South Africa, etc., please
follow local wiring regulations!
NOTICE
C. Diagram for Australia, New Zealand, South Africa, etc. (for HAS series inverters)
Model ① ② ③ ④ ⑤ ⑥ ⑦⑧
HAS-3.0LV-G1 100 A/60 V
DC Breaker
20 A/230 V
AC Breaker
20 A/230 V
AC Breaker
40 A/230 V
AC Breaker
Depends
on Loads
Main
Breaker
30 mA
RCD
HAS-3.6LV-G1 125 A/60 V
DC Breaker
20 A/230 V
AC Breaker
20 A/230 V
AC Breaker
40 A/230 V
AC Breaker
HAS-4.6LV-G1 125 A/60 V
DC Breaker
25 A/230 V
AC Breaker
25 A/230 V
AC Breaker
40 A/230 V
AC Breaker
HAS-5.0LV-G1 125 A/60 V
DC Breaker
32 A/230 V
AC Breaker
32 A/230 V
AC Breaker
40 A/230 V
AC Breaker
Note:
• If the battery integrates a readily accessible internal DC breaker, no additional ① DC breaker is required.
• ⑦⑧ 30 mA RCD is recommended but not mandatory; please comply with local regulation.
Battery
BMS
Backup
Loads
Smart
Meter
1
RCD
Grid
E-BAR
Normal Loads
Distribution Box
PE or
L
N
L
N
PE
EPS
GRID
Meter
L
N
PE
L
N
PE
L N PE
①
CT Utility
Meter
Do not connect this terminal
when the neutral wire and PE
wire are connected together.
E-N
Link
N-BAR
RCD
LOAD
②
④
⑤
⑥
⑦
⑧
Generator
/Inverter
PE or
L
N
GEN
L
N
PE
③
HAS-LV Series
Smart
Meter
2
GRID
CT
Do not connect this terminal
when the neutral wire and PE
wire are connected together.
INV
RJ45
Coupler
GEN

Hybrid Inverter User Manual
© 2023 Hoymiles Power Electronics Inc. All rights reserved. 13
• This diagram is an example of application in which the neutral is separated
from the PE in the distribution box.
• For countries such as China, Germany, Italy, etc., please follow local wiring
regulations!
• The back-up PE line and earthing bar must be grounded properly and
effectively. Otherwise, the back-up function may be abnormal when the
grid fails.
NOTICE
D. Diagram for Other Countries (for HAS series inverters)
Model ① ② ③ ④ ⑤ ⑥ ⑦⑧
HAS-3.0LV-G1 100 A/60 V
DC Breaker
20 A/230 V
AC Breaker
20 A/230 V
AC Breaker
40 A/230 V
AC Breaker
Depends
on Loads
Main
Breaker
30 mA
RCD
HAS-3.6LV-G1 125 A/60 V
DC Breaker
20 A/230 V
AC Breaker
20 A/230 V
AC Breaker
40 A/230 V
AC Breaker
HAS-4.6LV-G1 125 A/60 V
DC Breaker
25 A/230 V
AC Breaker
25 A/230 V
AC Breaker
40 A/230 V
AC Breaker
HAS-5.0LV-G1 125 A/60 V
DC Breaker
32 A/230 V
AC Breaker
32 A/230 V
AC Breaker
40 A/230 V
AC Breaker
Note:
• If the battery integrates a readily accessible internal DC breaker, no additional ① DC breaker is required.
• ⑦⑧ 30 mA RCD is recommended but not mandatory; please comply with local regulation.
Battery
BMS
Backup
Loads
Smart
Meter
1
RCD
Grid
E-BAR
Normal Loads
Distribution Box
PE or
L
N
L
N
PE
EPS
GRID
Meter
L
N
PE
L
N
PE
L N PE
①
CT
Utility
Meter
RCD
LOAD
②
④
⑤
⑥
⑦
⑧
Generator
/Inverter
PE or
L
N
GEN
L
N
PE
③
HAS-LV Series
Smart
Meter
2
GRID
CT
RJ45
Coupler
INV GEN

Hybrid Inverter User Manual
© 2023 Hoymiles Power Electronics Inc. All rights reserved. 14
2.3.2 Retrofit System
The HYS/HAS-LV series inverter is compatible with any single-phase grid-connected PV inverters. With the
addition of Hoymiles hybrid inverter or AC-coupled inverter, existing PV system can be retrofitted to be a
PV Energy Storage System (ESS) allowing more self-consumption energy and more back-up energy.
Consult with your system integrator for detailed wirings according to your requirements.
HAS Series
HYS Series

Hybrid Inverter User Manual
© 2023 Hoymiles Power Electronics Inc. All rights reserved. 15
2.3.3 Unacceptable Diagram
Avoid the following installation types to prevent damage to the system or the HYS/HAS series inverter.

Hybrid Inverter User Manual
© 2023 Hoymiles Power Electronics Inc. All rights reserved. 16
3. Installation Instruction
3.1 Packing List
Please ensure that none of the components listed below are missing or damaged upon receipt of the hybrid
inverter or AC-coupled inverter.
HYS Series

Hybrid Inverter User Manual
© 2023 Hoymiles Power Electronics Inc. All rights reserved. 17
HAS Series
Hammer drill Wire stripper Hydraulic pliers
PV terminal
crimping tool
Tubular termianl
crimping tool
Network cable crimper
OT terminal
crimping tool
Heavy-duty connector
crimping tool
Phillips screwdriver
Protective goggles
Dust maskSafety gloves Safety shoes
3.2 Installation Tools
The following tools are recommended in the installation process, and other auxiliary tools can also be used
on site if necessary.

Hybrid Inverter User Manual
© 2023 Hoymiles Power Electronics Inc. All rights reserved. 18
3.3 Mounting
3.3.1 Selecting the Mounting Location
• Make sure there is no electrical connection before installation.
• In order to avoid electric shock or other injuries, make sure that holes are
not drilled over any electrical parts or plumbing installations.
WARNING
• Make sure the inverter is correctly installed according to the following list.
Any incorrect installation would require a risk assessment.
NOTICE
Check List
1. The inverter installation should be protected by shelter from direct sunlight or bad weather such as
snow, rain or lightning.
2. The inverter should be installed on a solid surface which is suitable for the inverter’s dimensions and
weight.
3. The inverter should be installed vertically or at a maximum back tilt of 15°. Leave enough space around
the inverter according to the figure below.
4. The ambient temperature should be between -25°C and 45°C. High ambient temperatures will cause
power derating of the inverter.
5. The relative humidity should be less than 95%, without condensing.
6. The inverter should be installed at eye level for convenient maintenance.
7. The product label on the inverter should be clearly visible after installation.
8. The inverter should be installed far from flammable materials.

Hybrid Inverter User Manual
© 2023 Hoymiles Power Electronics Inc. All rights reserved. 19
3.3.2 Mounting Inverter
Install the inverter on the wall using the provided wall-mounting bracket and expansion plug sets.
Procedure
Step 1
Step 2
Position the bracket against the
wall and mark the 4 drilling hole
locations.
Drill holes with a driller,and
make sure the holes are deep
enough (at least 60 mm).
2
Step 3
Step 4
Place sleeves in the holes, and
then tighten them.
Fix the wall bracket with
expansion screws. Please
confirm that the bracket is
firmly attached to the mounting
surface.
3
4
Step 5 Mount the inverter on the
bracket.
5
3.4 Electrical Wiring Connection
3.4.1 Grounding Connection
All non-current carrying metal parts and device enclosures in the PV power system should be grounded.
There is an additional grounding terminal located at bottom right of the inverter, being connected to a
nearby grounding point.
Procedure
Step 1
Step 2
Prepare the cable and OT/DT
terminal.
Use the screw from the
accessory box. Then fasten the
cable with a screwdriver.
WARNING
• Prior to any electrical connections, keep in mind that the inverter has dual power
supplies. It is mandatory for the qualified personnel to wear personal protective
equipment (PPE) during the electrical work.
21
M4
1.2 N·m
L=H+(2-3) mm
S6mm²
SH
L