hoymiles HYS-HAS-3.8LV-USG1 Hybrid AC Coupled Inverter User Guide

: June 1, 2024
: hoymiles

Table of Contents

hoymiles HYS-HAS-3.8LV-USG1 Hybrid AC Coupled Inverter
Product Introduction
FAQs
Safety Introduction
Product Introduction
Installation Instruction
Troubleshooting
Technical Datasheet
Read User Manual Online (PDF format)
Download This Manual (PDF format)

hoymiles HYS-HAS-3.8LV-USG1 Hybrid AC Coupled Inverter

hoymiles-HYS-HAS-3.8LV-USG1-Hybrid-AC-Coupled-Inverter-
image

Specifications

Model Numbers: HYS/HAS-3.8LV-USG1, HYS/HAS-4.8LV-USG1, HYS/HAS-6.0LV-USG1, HYS/HAS-7.6LV-USG1, HYS/HAS-9.6LV-USG1, HYS/HAS-11.5LV-USG1
Region: North America
Website: hoymiles.com

Product Introduction

The Hybrid/AC-coupled inverter is designed to efficiently convert energy for residential and commercial applications. It features various protection circuitries and controls like AFCI and RSD for enhanced safety.

Product Overview:

The inverter offers multiple operating modes and comes with LED indicators for easy monitoring. It is suitable for both hybrid and AC-coupled systems.

Product Dimensions:

The dimensions of the inverter ensure easy installation and maintenance. Refer to the user manual for specific measurements.

LED Indicators:

The LED indicators provide visual feedback on the operating status of the inverter, making it easier to troubleshoot if needed.

Installation Instructions:

Packing List:

Check the packing list to ensure all necessary components are present before installation.

Mounting:

Follow the specified mounting location requirements and steps outlined in the manual for proper installation.

Electrical Connection:

Connect the PV, battery, AC, and communication cables as per the instructions provided, ensuring proper cable management and safety measures.

Operation:

Commission the system following the guidelines in the manual and utilize the S-Miles Cloud App for monitoring and system settings.

FAQs

Q: What should I do if I encounter a warning symbol on the LED indicators?
- A: Refer to the troubleshooting section in the manual to identify and address any issues indicated by the LED indicators.
Q: Can I install the inverter myself?
- A: It is recommended to have qualified personnel handle the installation and maintenance of the inverter to ensure safety and proper functioning.

Open Energy for All

Hybrid/AC-coupled Inverter
USER MANUAL
HYS/HAS-3.8LV-USG1 HYS/HAS-4.8LV-USG1 HYS/HAS-6.0LV-USG1 HYS/HAS-7.6LV-USG1 HYS/HAS-9.6LV-USG1 HYS/HAS-11.5LV-USG1

Region: North America REV2.0

hoymiles.com

Hybrid/AC-coupled Inverter User Manual

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Hybrid/AC-coupled Inverter User Manual

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

DANGER

Indicates a hazard with a high level of risk that, if not avoided, will result in death or serious injury.

WARNING

Indicates a hazard with a medium level of risk that, if not avoided, can result in death or serious injury.

CAUTION

Indicates a hazard with a low level of risk that, if not avoided, can result in minor or moderate injury.

NOTICE

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.

5min

After the inverter is turned off, wait for at least 5 minutes before opening the inverter or touching live parts.

intergrated
PV AFCI
TYPE 1

Products shall not be disposed as household waste. Supports Type 1 DC Arc Detection on PV side. CSA Marking for the United States of America and Canada.

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Hybrid/AC-coupled Inverter User Manual

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.

6

Keep dry! The package/product must be protected from excessive humidity and must be stored under cover.
A maximum of six (6) identical packages can be stacked.

1.2 Safety Information
SAVE THESE INSTRUCTIONS-This manual contains important instructions for models HYS/HAS-3.8LV-USG1, HYS/HAS-4.8LV-USG1, HYS/HAS-6.0LV-USG1, HYS/HAS-7.6LV- USG1, HYS/HAS-9.6LV-USG1, and HYS/HAS-11.5LV-USG1, which should be followed during the installation and maintenance of the inverter. 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

Danger to life from electric shock · Before performing any work on the inverter, disconnect all DC and AC power
from the inverter and wait for at least 5 minutes. The hazardous voltage will exist for up to 5 minutes after disconnection from the 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 the inverter for 5 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 the 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 (140), and touching the
surface may result in burns. · Do not touch hot surfaces before it cools down.

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Hybrid/AC-coupled Inverter User Manual

WARNING CAUTION NOTICE

· 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 the inverter before attempting any maintenance, cleaning, or working on any circuits connected to the 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 disasters. · 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 the inverter, wait for at least 10 minutes
after disconnecting the power.
· The inverter has a transformerless design on the 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 the inverter which are not mentioned in the
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 and should be certified to
UL 61730-1 and UL 61730-2 standards.
· 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 the 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 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.

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Hybrid/AC-coupled Inverter User Manual

Product Introduction

2.1 Product Overview
The HYS/HAS-(3.8-11.5)LV-USG1 series inverter is a high-performance single- phase energy storage inverter with excellent reliability. 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.

1

RUN PV AC COM FAULT

2

3

4
PV1+ PV1- PV2+ PV2-

5

ON ON

1

7
BATT+

BATT-

8

N NN

L1 L2 L1 L2 GEN EPS

L1 L2 GRID

6

HYS-(3.8-6.0)LV-USG1

2

3

4
PV1+ PV1- PV2+ PV2-

5

ON ON

1

6

1

RUN PV AC COM FAULT

BATT+

BATT-

7

8

N NN

L1 L2 GEN

L1 L2 EPS

L1

L2

GRID

6

HYS-(7.6-11.5)LV-USG1 * The image shown here is for reference only. The actual product received may differ.

Object

Description

1

LED Indicators

2

DC Switch(1)

3

Rapid Shutdown Switch

4

PV Terminals(2)

5

Communication Port

6

Grounding Bar

7

Battery Terminals

8

AC Terminals

Note: (1) Only for HYS-(3.8-11.5)LV-USG1 series inverter (2) Only for HYS-(3.8-11.5)LV-USG1 series inverter

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Hybrid/AC-coupled Inverter User Manual
2.2 Product Dimensions
HYS-(3.8-6.0)LV-USG1
214.8 mm/8.46 in

502 mm/19.76 in

OFF ON
DC SWITCH PUSH OFF, TWIST ON
RAPID SHUTDOWN SWITCH

RUN PV AC COM FAULT

615 mm/24.21 in

639.5 mm/25.18 in

105 mm/4.13 in 51 mm/2 in

18 mm/0.7 in PF3/4
PF1

25 mm/1 in

97 mm/3.82 in

PF3/4 : 33.8 mm/1.33 in

155 mm/6.1 in 83 mm/3.27 in

PF1

58 mm/2.28 in : 26.6 mm/1.05 in

58 mm/2.28 in

440 mm/17.3 in

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Hybrid/AC-coupled Inverter User Manual HAS-(3.8-6.0)LV-USG1
214.8 mm/8.46 in

502 mm/19.76 in

639.5 mm/25.18 in 615 mm/24.21 in

OFF ON
DC SWITCH PUSH OFF, TWIST ON RAPID SHUTDOWN
SET

RUN PV AC COM FAULT

105 mm/4.13 in 51 mm/2 in

18 mm/0.7 in PF3/4
PF1

25 mm/1 in

97 mm/3.82 in

PF3/4 : 33.8 mm/1.33 in

155 mm/6.1 in 83 mm/3.27 in

PF1

58 mm/2.28 in : 26.6 mm/1.05 in

58 mm/2.28 in

440 mm/17.3 in

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Hybrid/AC-coupled Inverter User Manual HAS-(7.6-11.5)LV-USG1 214.8 mm/8.46 in

502 mm/19.76 in

818.5 mm/32.2 in 740 mm/29.13 in

OFF ON
DC SWITCH PUSH OFF, TWIST ON
RAPID SHUTDOWN SWITCH

105 mm/4.13 in 51 mm/2 in

18 mm/0.7 in PF3/4
PF1

25 mm/1 in

97 mm/3.82 in

PF3/4 : 33.8 mm/1.33 in

155 mm/6.1 in 83 mm/3.27 in

PF1

58 mm/2.28 in : 26.6 mm/1.05 in

58 mm/2.28 in

440 mm/17.3 in

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Hybrid/AC-coupled Inverter User Manual
2.3 LED Indicators

RUN PV AC COM FAULT

Indicator

Status
RUN PV AC COM FAULT

Explanation
Full circle LEDs on SOC is 75-100%; battery is discharging or in standby Full circle LEDs blink SOC is 75-100%; battery is charging

RUN PV AC COM FAULT

3/4 circle LEDs on SOC is 50-75%; battery is discharging or in standby 3/4 circle LEDs blink SOC is 50-75%; battery is charging

SOC

RUN PV AC COM FAULT

2/4 circle LEDs on SOC is 25-50%; battery is discharging or in standby 2/4 circle LEDs blink SOC is 25-50%; battery is charging

RUN PV AC COM FAULT

1/4 circle LED on SOC is 0-25%; battery is discharging or in standby 1/4 circle LED blinks SOC is 0-25%; battery is charging

RUN PV AC COM FAULT

Full circle LEDs off No BMS communication

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Hybrid/AC-coupled Inverter User Manual

RUN PV AC COM FAULT

Indicator RUN PV
(for HYS) AC
COM
FAULT

Status

Explanation
Off Inverter is shut down Blink 1 Inverter is booting Blink 2 Inverter is in bypass mode On Inverter is turned on
Off PV voltage is low Blink 1 PV power is low On PV is generating power
Off Grid is disconnected and EPS is off Blink 1 Grid is disconnected but EPS is on On Grid is connected
Off Communication error of both meter and BMS Blink 1 Communication failed to meter Blink 2 Communication failed to BMS On Both meter and BMS communications are normal
Off No fault On – A fault occurs Blink 1 EPS port overload Blink 2 ISO/RCD fault Blink 3 Arc fault

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Hybrid/AC-coupled Inverter User Manual
2.4 Protection Circuitry and Controls
The Hoymiles HYS-(3.8-11.5)LV-USG1 series inverter is equipped with arc fault circuit breakers (AFCI) and rapid shutdown (RSD) for the protection circuit and control to meet the relevant codes and standards. 2.4.1 AFCI According to 2011 NEC Section 690.11, photovoltaic systems operating at 80 volts DC or greater between any two conductors shall be protected by a listed PV arc-fault circuit interrupter or other system components listed to provide equivalent protection. The AFCI function is integrated into the HYS-(3.8-11.5)LV-USG1 series inverter. Once an arc fault is detected, the corresponding error and time will be reported in the App. Within 24 hours, when the first four faults occur, the inverter will automatically clear the alarms and restart; when the fifth fault occurs, the inverter will shut down, and cannot automatically clear the alarm and restart. The inverter will resume operation after inspecting and repairing the arc fault position on-site, and manually clearing the alarm. 2.4.2 RSD The HYS-(3.8-11.5)LV-USG1 series inverter integrates the transmitter HT10. When paired with Hoymiles rapid shutdown HRSD (HRSD-1C or HRSD-2C) and powered on, HT10 sends a “permission to operate” signal to HRSD that is connected to the PV modules. Once HRSD receives this signal, it will start to work and enable PV modules to be connected in series to the hybrid inverter, thus producing power. When HRSD gets this signal, it will start to work and allow the string voltage to ramp up. When the HRSD loses this signal, it will be in the standby state, and the HRSD only outputs around 1 Vdc.

Rapid Shutdown Initiation Process: 1. Press the switch button to turn off the internal transmitter. This will initiate rapid shutdown of the PV (ramps the PV voltage down). 2. Twist the switch clockwise to turn on the transmitter. This will bring the PV voltage back up to normal.
Note: The rapid shutdown will only be initiated if HRSD has been installed on the PV modules. Without the HRSD, rapid shutdown is not possible.

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Hybrid/AC-coupled Inverter User Manual
2.5 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 to 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 the grid (if allowed).
At night, the battery discharges for the loads first, and the grid will supply the loads once the battery power is not enough. In this mode, the battery cannot be charged from the grid at night.

Consuming from grid Loads
00:00

PV power PV surplus power selling
(If allowed)
Battery charging Self consuming (PV power generation)

discharging

standby

charging

standby

Power flow of self-consumption mode

Economic Mode

In this mode, the time of battery charge and discharge needs to be set. The battery can be forced to discharge during the preset discharge time. For instance, the battery could be discharged according to peak electricity price, and the battery can be charged by surplus PV power in the daytime or from the grid during the period of valley electricity price (if allowed).

Battery discharging at night
24:00
discharging

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Hybrid/AC-coupled Inverter User Manual

PV power

PV surplus power selling

Battery discharging

(If allowed)

Battery fully at morning charged
Loads

Battery charging

Battery discharging at evening
Battery charging at night (If allowed)

00:00

Self consuming (PV power generation)

24:00

standby

discharging

chchaarrggiinngg

standby

discharging

chcaharrggiinngg

Power flow of economic mode

Backup 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.

Consuming from grid Loads
00:00

PV power PV surplus power selling
(If allowed)
Battery charging Self consuming (PV power generation)

Battery discharging at night
Discharge stopped when set SOC is reached
24:00

standby

charging

standby

discharging

standby

Power flow of backup mode

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Hybrid/AC-coupled Inverter User Manual
2.6 System Diagram 2.6.1 Basic Diagram
The HYS-(3.8-11.5)LV-USG1 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 form a DC-coupled system for a new installation or an AC-coupled system to retrofit existing installations.
HYS-(3.8-6.0)LV-USG1

PV1+ PV1- PV2+ PV2-

ON ON

1

PV Strings PV Strings

From Meter BMS Generator Control
DC Breaker AC Breaker
AC Breaker AC Breaker

BATT+

BATT-

N NN

L1 L2 GEN

L1 L2 EPS

L1 L2 GRID

Main Panel

AC Breaker

N-BAR
E-N Link E-BAR

Battery

Backup Loads
or Microinverter

Main Loads Generator

To Inverter Meter Port

Meter
L1 L2 N PE

Grid

Meter

DC Wire L1 Wire L2 Wire N Wire PE Wire Signal Wire

HYS-(7.6-11.5)LV-USG1

PV1+ PV1- PV2+ PV2-

ON ON

1

PV Strings PV Strings

From Meter BMS Generator Control DC Breaker
AC Breaker AC Breaker AC Breaker

BATT+

BATT-

Battery

N NN

L1 L2 GEN

L1 L2 EPS

L1

L2

GRID

Main Panel

AC Breaker

N-BAR
E-N Link E-BAR

Backup Loads
or Microinverter

Main Loads Generator

To Inverter Meter Port

Meter
L1 L2 N PE

Grid

Meter

DC Wire L1 Wire L2 Wire N Wire PE Wire Signal Wire

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Hybrid/AC-coupled Inverter User Manual
The HAS-(3.8-11.5)LV-USG1 series inverter can be connected to a battery and any grid-connected PV inverter 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 or Grid port even if there is a grid outage.
HAS-(3.8-6.0)LV-USG1

PV1+ PV1- PV2+ PV2-

ON ON

1

From Meter BMS Generator Control
DC Breaker AC Breaker
AC Breaker AC Breaker

BATT+

BATT-

N NN

L1 L2 GEN

L1 L2 EPS

L1 L2 GRID

Main Panel

AC Breaker

N-BAR
E-N Link E-BAR

Battery

Backup Loads
or Microinverter

Main Loads Generator

To Inverter Meter Port

Meter
L1 L2 N PE

Grid

Meter

DC Wire L1 Wire L2 Wire N Wire PE Wire Signal Wire

HAS-(7.6-11.5)LV-USG1

PV1+ PV1- PV2+ PV2-

ON ON

1

From Meter BMS Generator Control DC Breaker
AC Breaker AC Breaker AC Breaker

BATT+

BATT-

Battery

N NN

L1 L2 GEN

L1 L2 EPS

L1

L2

GRID

Main Panel

AC Breaker

N-BAR
E-N Link E-BAR

Backup Loads
or Microinverter

Main Loads Generator

To Inverter Meter Port

Meter
L1 L2 N PE

Grid

Meter

DC Wire L1 Wire L2 Wire N Wire PE Wire Signal Wire

NOTICE

· This diagram is a simplified system sketch that is only intended to explain system architecture.
· Please refer to https://www.hoymiles.com for the compatible battery list, and the user should first contact Hoymiles for technical consultation and obtain official confirmation before installing any battery not included in the official published list.
· The 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 settings and installations correctly. Please contact Hoymiles for technical support on lead-acid battery installation.

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Hybrid/AC-coupled Inverter User Manual
2.6.2 Unacceptable Diagram Avoid the following installation types to prevent damage to the system or the inverter.

Smart Meter

One battery cannot be connected to multiple inverters.

One meter cannot be connected to multiple inverters and different CTs cannot be connected to the same line cable.
Generator

PV

Single PV cannot be connected to multiple inverters.

On-grid EPS
Neither EPS or on-grid port can be connected to generator directly.

EPS EPS port cannot be connected to grid directly.

Incompatible battery
Incompatible battery cannot be connected to battery port.

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Hybrid/AC-coupled Inverter User Manual

Installation Instruction

3.1 Packing List
Please ensure that none of the components listed below are missing or damaged upon receipt of the hybrid or AC-coupled inverter. HYS-(3.8-11.5)LV-USG1

HAS-(3.8-11.5)LV-USG1

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Hybrid/AC-coupled Inverter User Manual
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.

Hammer drill

Screwdriver

Adjustable wrench

Wire stripper

Network cable crimper

Safety gloves

Dust mask

Safety shoes

Protective goggles

3.3 Mounting 3.3.1 Mounting Location Requirements

WARNING

· Make sure there is no electrical connection before installation. · To avoid electric shock or other injuries, make sure that holes are not drilled
over any electrical parts or plumbing installations.

NOTICE

· Make sure the inverter is correctly installed according to the following list. Any incorrect installation would require a risk assessment.

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 that 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.
300 mm (11.81 in)

200 mm (7.87 in)

300 mm (11.81 in)

500 mm (19.69 in)
4. The inverter should be installed in an environment with good ventilation and heat dissipation conditions. 5. The ambient temperature should be between -25°C (-13) and 45°C (113). High ambient temperatures will cause power derating of the inverter. 6. The relative humidity should be less than 95%, without condensing. 7. The inverter should be installed at eye level for convenient maintenance. 8. The product label on the inverter should be visible after installation. 9. The inverter should be installed far from flammable materials.

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Hybrid/AC-coupled Inverter User Manual
3.3.2 Wall Mounting Steps Install the inverter on the wall using the provided wall-mounting bracket and expansion plug sets.
Procedure

Step 1&2

· Position the bracket against the wall and mark the 6 drilling hole locations. · Drill holes with a driller, and make sure the holes are deep enough (at least 60 mm).

1

2

200 mm/7.87 in

203 mm/8 in 203 mm/8 in

Step 3&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&6

· Mount the inverter on the bracket. · Tighten the screw with a torque of 1.4 N·m to secure the bracket and the inverter.

5

6

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Hybrid/AC-coupled Inverter User Manual
3.4 Electrical Connection

WARNING NOTICE

· Before 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 electrical work.
· Before connecting the cables, use the adjustable wrench to unscrew the waterproof plugs with a torque of at least 7 N·m. The size of the adjustable wrench can be adjusted to 41 mm (1.61 in) and 32 mm (1.26 in) according to the size of the waterproof plugs.

3.4.1 Over Current Protection Requirement

To ensure safe connection and operation, it is recommended to install an over current protection device while installing PV cables, battery cables, grid cables, EPS cables, and GEN cables. The following data is the current and recommended cable specification for the over current protection device.

Over Current Protection

HYS/HAS3.8LV-USG1

Current
HYS/HAS4.8LV-USG1

HYS/HAS6.0LV-USG1

Recommended Cable Specification (90/194, Copper)
HYS/HAS- HYS/HAS- HYS/HAS3.8LV-USG1 4.8LV-USG1 6.0LV-USG1

PV (only for HYS)

20 A

14-6 AWG 14-6 AWG 14-6 AWG

Battery

100 A

125 A

3-1/0 AWG 2-2/0 AWG 2-2/0 AWG

Grid L1/L2

40 A

50 A

10-4 AWG 8-4 AWG

8-4 AWG

EPS/GEN L1/L2

20 A

25 A

14-6 AWG 14-6 AWG 14-6 AWG

Over Current Protection

HYS/HAS7.6LV-USG1

Current HYS/HAS-

HYS/HAS-

Recommended Cable Specification
(90/194, Copper) HYS/HAS- HYS/HAS- HYS/HAS-

9.6LV-USG1 11.5LV-USG1 7.6LV-USG1 9.6LV-USG1 11.5LV-USG1

PV (only for HYS)

20 A

14-6 AWG 14-6 AWG 14-6 AWG

Battery

200 A

250 A

250 A 3/0-4/0 AWG 4/0 AWG

4/0 AWG

Grid L1/L2

80 A

100 A

4-1 AWG

3-1 AWG

EPS/GEN L1/L2

40 A

50 A

10-6 AWG 8-6 AWG

8-6 AWG

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Hybrid/AC-coupled Inverter User Manual

3.4.2 Recommended Cable List This data is the cable specification recommended by Hoymiles. For proper cable specifications, please refer to local laws and regulations and actual installation.

Cable (90/194, Copper)
PV Cable (only for HYS)

HYS/HAS-3.8LVUSG1
12 AWG

Specification HYS/HAS-4.8LV-
USG1
12 AWG

HYS/HAS-6.0LVUSG1
12 AWG

Stripping Length HYS/HAS-3.8/4.8/6.0LV-
USG1
12 mm/0.47 in

Battery Cable

2 AWG

23 mm/0.91 in

Battery Ground Cable

8 AWG

12 mm/0.47 in

Grid L1/L2 Cable

8 AWG

17 mm/0.67 in

Grid N Cable

10 AWG

15 mm/0.59 in

Grid Ground Cable

8 AWG

12 mm/0.47 in

EPS/GEN L1/L2/N Cable

10 AWG

15 mm/0.59 in

EPS/GEN Ground Cable

8 AWG

12 mm/0.47 in

Communication Cable

24 AWG

8 mm/0.31 in

Cable (90/194, Copper)
PV Cable (only for HYS)

HYS/HAS-7.6LVUSG1
12 AWG

Specification HYS/HAS-9.6LV-
USG1

HYS/HAS-11.5LVUSG1

Stripping Length HYS/HAS-7.6/9.6/11.5LV-
USG1

12 AWG

14 mm/0.55 in

Battery Cable

3/0 AWG

4/0 AWG

23 mm/0.91 in

Battery Ground Cable

6 AWG

12 mm/0.47 in

Grid L1/L2 Cable

4 AWG

3 AWG

24 mm/0.94 in

Grid N Cable

10 AWG

8 AWG

18 mm/0.71 in

Grid Ground Cable

8 AWG

12 mm/0.47 in

EPS/GEN L1/L2/N Cable

10 AWG

8 AWG

18 mm/0.71 in

EPS/GEN Ground Cable

8 AWG

12 mm/0.47 in

Communication Cable

24 AWG

8 mm/0.31 in

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Hybrid/AC-coupled Inverter User Manual
3.4.3 Opening the Wiring Box Cover Procedure
Step 1 · Loosen but do not remove the 6 screws of the wiring box cover with T20 screwdriver. Step 2 · Remove the cover.

T20

3.4.4 PV Cable Connection (Only for HYS series inverters)

WARNING

Before connecting PV cables, please make sure all requirements listed below are followed. · The voltage, current and power ratings of the panels to be connected are
within the allowable range of the inverter. Ensure the polarity is correct, and please refer to the technical parameters in Chapter 5 for voltage and current limits. · If the PV cables are reversely connected or if the inverter is not working properly, do not turn off the DC switch. Otherwise, it may cause a DC arc, fire, or damage to the inverter. · Since the inverter is a transformerless structure, please do not ground the outputs of PV panels.

Over Current Protection HYS-3.8LVUSG1

PV

20 A

Current
HYS-4.8LVUSG1 20 A

HYS-6.0LVUSG1
20 A

Recommended Cable Specification

(90/194, Copper) HYS-3.8LV- HYS-4.8LV- HYS-6.0LV-

USG1

14-6 AWG 14-6 AWG 14-6 AWG

Cable (90/194, Copper)
PV Cable

Specification

Stripping Length

HYS-3.8LV-USG1 HYS-4.8LV-USG1 HYS-6.0LV-USG1 HYS-3.8/4.8/6.0LV-USG1

12 AWG

12 mm/0.47 in

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Hybrid/AC-coupled Inverter User Manual

Step 1 Step 2

Procedure
· Strip the cable insulation by 12 mm (0.47 in). · Insert the PV cables into the terminal, and gently pull the cables backward to ensure
that they are firmly connected.

PV1+ PV1- PV2+ PV2-

1
12 mm (0.47 in)

2

PV1+ PV1- PV2+ PV2-

ON ON

1

12 mm (0.47 in)

Over Current Protection HYS-7.6LVUSG1

PV

20 A

Current
HYS-9.6LVUSG1

HYS-11.5LVUSG1

Recommended Cable Specification

(90/194, Copper) HYS-7.6LV- HYS-9.6LV- HYS-11.5LV-

USG1

20 A

14-6 AWG 14-6 AWG 14-6 AWG

Cable (90/194, Copper)
PV Cable

Specification

Stripping Length

HYS-7.6LV-USG1 HYS-9.6LV-USG1 HYS-11.5LV-USG1 HYS-7.6/9.6/11.5LV-USG1

12 AWG

14 mm/0.55 in

Step 1 Step 2

Procedure
· Strip the cable insulation by 14 mm (0.55 in). · Insert the PV cables into the terminal, and gently pull the cables backward to ensure
that they are firmly connected.

PV1+ PV1- PV2+ PV2-

1
14 mm (0.55 in)

2

PV1+ PV1- PV2+ PV2-

ON ON

1

BATT+

14 mm (0.55 in)

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Hybrid/AC-coupled Inverter User Manual

3.4.5 Battery Cable Connection
This section mainly describes the cable connections on the inverter side. Refer to the instructions supplied by the battery manufacturer for the connections on the battery side. For batteries without a built-in DC breaker, make sure that an external DC breaker is connected. If you need to use this hybrid inverter or AC-coupled inverter as a grid-tied inverter, please contact Hoymiles for help.

WARNING

· A two-pole DC breaker with an over current protection (OCP) function is compulsory to be installed between the inverter and battery. The battery may have this switch integrated. If not, an external DC switch of proper ratings should be used.
· Make sure the breaker mentioned above is in the “OFF” position. · Before proceeding to the next step, make sure that the battery voltage is 0
Vdc through a multimeter.

NOTICE

· Do not turn the battery switch on until all cables are properly connected. · The inverter is compatible with specific batteries. For battery models that
this inverter supports, please refer to the Hoymiles compatible battery list.

Over Current Protection

HYS/HAS3.8LV-USG1

Current
HYS/HAS4.8LV-USG1

HYS/HAS6.0LV-USG1

Recommended Cable Specification (90/194, Copper)
HYS/HAS- HYS/HAS- HYS/HAS3.8LV-USG1 4.8LV-USG1 6.0LV-USG1

Battery

100 A

125 A

3-1/0 AWG 2-2/0 AWG 2-2/0 AWG

Cable (90/194, Copper)
Battery Cable

HYS/HAS-3.8LVUSG1
2 AWG

Specification HYS/HAS-4.8LV-
USG1
2 AWG

HYS/HAS-6.0LVUSG1
2 AWG

Stripping Length HYS/HAS-3.8/4.8/6.0LV-
USG1
23 mm/0.91 in

Battery Ground Cable

8 AWG

12 mm/0.47 in

Step 1 Step 2

Procedure
· Strip the battery cable insulation by 23 mm (0.91 in). · Strip the battery ground cable insulation by 12 mm (0.47 in).
· Firstly, use the slotted screwdriver to unscrew the screw on the grounding bar, insert the battery ground cable, and tighten the screw. Secondly, use the hex wrench to unscrew the bolts, insert the battery cables into the terminals, and then tighten the bolts. Gently pull the battery cables and battery ground cable backward to ensure that they are firmly connected.

1
23 mm (0.91 in)
23 mm (0.91 in)

2

PV1+ PV1- PV2+ PV2-

ON ON

1

RUN

BATT+B

ATT-

NN N

12 mm (0.47 in)

8 mm/0.31 in 15 N·m
3 N·m

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Hybrid/AC-coupled Inverter User Manual

Over Current Protection

HYS/HAS7.6LV-USG1

Current HYS/HAS-

HYS/HAS-

Recommended Cable Specification
(90/194, Copper) HYS/HAS- HYS/HAS- HYS/HAS-

9.6LV-USG1 11.5LV-USG1 7.6LV-USG1 9.6LV-USG1 11.5LV-USG1

Battery

200 A

250 A

250 A 3/0-4/0 AWG 4/0 AWG

4/0 AWG

Cable (90/194, Copper)
Battery Cable

HYS/HAS-7.6LVUSG1
3/0 AWG

Specification HYS/HAS-9.6LV-
USG1

HYS/HAS-11.5LVUSG1

Stripping Length HYS/HAS-7.6/9.6/11.5LV-
USG1

4/0 AWG

23 mm/0.91 in

Battery Ground Cable

6 AWG

12 mm/0.47 in

Step 1 Step 2

Procedure
· Strip the battery cable insulation by 23 mm (0.91 in). · Strip the battery ground cable insulation by 12 mm (0.47 in).
· Firstly, use the slotted screwdriver to unscrew the screw on the grounding bar, insert the battery ground cable, and tighten the screw. Secondly, use the hex wrench to unscrew the bolts, insert the battery cables into the terminals, and then tighten the bolts. Gently pull the battery cables and battery ground cable backward to ensure that they are firmly connected.

BATT+

BATT-

1
23 mm (0.91 in)
23 mm (0.91 in)
12 mm (0.47 in)

2

PV1+ PV1- PV2+ PV2-

ON ON

1

BATT+

BATT-

NN N

8 mm/0.31 in 22.6 N·m
3 N·m

3.4.6 AC Cable Connection The following diagrams are examples of connecting grid cables, and the GEN and EPS connection methods are the same as grid connection. For recommended cable specifications of EPS and GEN, please refer to the following recommended cable list.

WARNING

Before connecting the AC cables, please make sure all requirements listed below are followed. · An independent two or three circuit breaker must be installed on the output
side of the inverter to ensure safe disconnection from the grid. · Multiple inverters cannot share one circuit breaker. · Never connect a load between the inverter and the circuit breaker. · Make sure that the overcurrent protection devices (OCPDs) (breakers) are
turned off. · Before proceeding to the next step, make sure that the AC voltages are 0
Vac through a multimeter.

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Hybrid/AC-coupled Inverter User Manual

Over Current Protection

HYS/HAS3.8LV-USG1

Current
HYS/HAS4.8LV-USG1

HYS/HAS6.0LV-USG1

Recommended Cable Specification (90/194, Copper)
HYS/HAS- HYS/HAS- HYS/HAS3.8LV-USG1 4.8LV-USG1 6.0LV-USG1

Grid L1/L2

40 A

50 A

10-4 AWG 8-4 AWG

8-4 AWG

EPS/GEN L1/L2

20 A

25 A

14-6 AWG 14-6 AWG 14-6 AWG

Cable (90/194, Copper)
Grid L1/L2 Cable

HYS/HAS-3.8LVUSG1
8 AWG

Specification HYS/HAS-4.8LV-
USG1
8 AWG

HYS/HAS-6.0LVUSG1
8 AWG

Stripping Length HYS/HAS-3.8/4.8/6.0LV-
USG1
17 mm/0.67 in

Grid N Cable

10 AWG

15 mm/0.59 in

Grid Ground Cable

8 AWG

12 mm/0.47 in

EPS/GEN L1/L2/N Cable

10 AWG

15 mm/0.59 in

EPS/GEN Ground Cable

8 AWG

12 mm/0.47 in

Step 1 Step 2

Procedure
· Strip the grid L1/L2 cable insulation by 17 mm (0.67 in), and strip the grid N cable insulation by 15 mm (0.59 in).
· Strip the grid ground cable insulation by 12 mm (0.47 in).
· Firstly, use the slotted screwdriver to unscrew the screw on the grounding bar, insert the grid ground cable, and tighten the screw. Secondly, insert the L1/L2/N cable into the grid terminals. Gently pull the grid cable and grid ground cable backward to ensure that they are firmly connected.

1

2

17 mm (0.67 in)

15 mm (0.59 in)

12 mm (0.47 in)

Over Current Protection

HYS/HAS7.6LV-USG1

Current HYS/HAS-

HYS/HAS-

Recommended Cable Specification
(90/194, Copper) HYS/HAS- HYS/HAS- HYS/HAS-

9.6LV-USG1 11.5LV-USG1 7.6LV-USG1 9.6LV-USG1 11.5LV-USG1

Grid L1/L2

80 A

100 A

4-1 AWG

3-1 AWG

EPS/GEN L1/L2

40 A

50 A

10-6 AWG 8-6 AWG

8-6 AWG

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Hybrid/AC-coupled Inverter User Manual

Cable (90/194, Copper)
Grid L1/L2 Cable

HYS/HAS-7.6LVUSG1
4 AWG

Specification

Stripping Length

HYS/HAS-9.6LV- HYS/HAS-11.5LV- HYS/HAS-7.6/9.6/11.5LV-

USG1

3 AWG

24 mm/0.94 in

Grid N Cable

10 AWG

8 AWG

18 mm/0.71 in

Grid Ground Cable

8 AWG

12 mm/0.47 in

EPS/GEN L1/L2/N Cable

10 AWG

8 AWG

18 mm/0.71 in

EPS/GEN Ground Cable

8 AWG

12 mm/0.47 in

Step 1 Step 2

Procedure
· Strip the grid L1/L2 cable insulation by 24 mm (0.94 in), and strip the grid N cable insulation by 18 mm (0.71 in).
· Strip the grid ground cable insulation by 12 mm (0.47 in).
· Firstly, use the slotted screwdriver to unscrew the screw on the grounding bar, insert the grid ground cable, and tighten the screw. Secondly, insert the L1/L2/N into the grid terminals. Gently pull the grid cable and grid ground cable backward to ensure that they are firmly connected.

1

2

24 mm (0.94 in)

18 mm (0.71 in)

12 mm (0.47 in)

Note that if the GEN port is connected to the PV inverter or generator, the GEN port limits are described as follows:

Inverter Model

HYS/HAS- HYS/HAS- HYS/HAS- HYS/HAS- HYS/HAS- HYS/HAS3.8LV-USG1 4.8LV-USG1 6 .0LV-USG1 7.6LV-USG1 9.6LV-USG1 11.5LV-USG1

Rated input voltage of GEN port 240 V

240 V

Max. input current of GEN port

16 A

20 A

25 A

32 A

40 A

48 A

Recommended AC breaker

20 A/240 V 25 A/240 V 25 A/240 V 40 A/240 V 50 A/240 V 50 A/240 V

Recommended cable

14-6 AWG 14-6 AWG 14-6 AWG 10-6 AWG 8-6 AWG 8-6 AWG

Note: · Select the appropriate AC breaker in accordance with local laws and regulations. · The grid-connected PV inverter connected to the GEN port must have overfrequency protection
function.

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Hybrid/AC-coupled Inverter User Manual
3.4.7 Communication Cable Connection Detailed pin functions of each port on the communication interface are as follows.

ON ON

1

Parallel

8-485A_2
7-485B_2 6-485A_1 5-485B_1 4-CANL 3-CANH 2-NC 1-NC

Parallel

8-485A_2
7-485B_2 6-485A_1 5-485B_1 4-CANL 3-CANH 2-NC 1-NC

BMS

8-485B 7-485A 6-NC 5-CANL 4-CANH 3-NTC2-NC 1-NTC+

Label

Description

Parallel (CANH, CANL, 485B_1, 485A_1, 485B_2, 485A_2) For parallel operation.

BMS (NTC+, NTC-, CANH, CANL, 485A, 485B)

For Li-ion batteries, communication is via CAN or RS485. For lead-acid batteries, the temperature is monitored via a sensor through NTC+ and NTC-.

SW_485 (ON, OFF)

120 Ohm termination resistor for parallel operation.

SW_CAN (ON, OFF)

120 Ohm termination resistor for parallel operation.

Meter (485A1, 485B1, 485A2, 485B2) DI (DI_A, DI_B)

For the smart meter. One is connected to the grid side, and the other is connected to the third-party inverter.
Dry contact input of external bypass contactor.

+12V/GND

Reserved.

EPO_P/EPO_N

For external Emergency Power Off switch.

DO1 (NO1, COM1)

Dry contact output. The DO1 can be set to one of the functions as follows: Earth Fault Alarm, Load Control, and Generator Control.

DO2 (NO2, COM2)

Dry contact output. The DO2 will control the bypass contactor under certain logic.

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Hybrid/AC-coupled Inverter User Manual
3.4.7.1 Smart Meter and CT Connection The smart meter and CT in the accessory box are necessary for system installation and are used to provide the operating condition of the inverter via RS485 communication.

WARNING NOTICE

· Before connecting the smart meter and CT, ensure that the AC cable is totally isolated from the AC power source.
· One smart meter can be used with only one inverter. · One CT must be used for one smart meter and must be connected to the
same phase with the smart meter power cable. · There is a symbol (arrow) or label on the surface of CT that indicates
the correct mechanical orientation of the CT on the conductor under measurement. Please identify the arrow or label before installing the CT.

Cable (90/194, Copper)
L1/L2/N Cable RS485 Cable (shield twisted pair)

HYS/HAS-3.8LVUSG1
14 AWG

Specification HYS/HAS-4.8LV-
USG1
14 AWG

HYS/HAS-6.0LVUSG1
14 AWG

Stripping Length HYS/HAS-3.8/4.8/6.0LV-
USG1
6 mm/0.24 in

24 AWG

8 mm/0.31 in

Procedure (for HYS series inverters)

Step 1

· Clamp CT 1-1 and CT1-2 to L1/L2 wire, respectively connect the white and blue wire of CT 1-1 to terminals 1/3, and respectively connect the white and blue wire of CT 1-2 to terminals 4/6. The arrow on the surface of CT should point to the grid.

Step 2

· Connect meter’s terminals 2/5/10 to grid L1/L2/N.

Step 3

· Respectively connect meter’s terminals A and B to inverter METER_A and METER_B.

RS485B RS485A

CT 1-2 CT 1-1 ·

L1 L2

N

PE N L1 L2

Utility Meter

Smart Meter

CT 1-2

CT 1-1

Grid
Grid Side

Load

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Hybrid/AC-coupled Inverter User Manual

Step 1 Step 2

Procedure (for HAS series inverters)
· The connection method of smart meter 1 is the same as that described above. The arrow on the surface of CT should point to the grid.
· If the PV inverter is connected to the grid port, connect terminals 2/5/10 of smart meter 2 to PV inverter L1/L2/N, and respectively connect meter’s terminals A and B to inverter METER_A (3) and METER_B (4). Note that the arrow on the surface of CT should point to the opposite direction of the PV inverter.

RS485B RS485A

PV Inverter

Inverter Side

CT 1-2

CT 1-1

Smart Meter 2

CT 1-2 CT 1-1 ·
L1 L2 N

PE N L1 L2

Utility Meter

Smart Meter 1

CT 1-2

CT 1-1

Grid
Grid Side

RS485B RS485A

Load

Note: There is one smart meter in our packing box, and the other needs to be purchased from Hoymiles. The meter address is automatically set. If there are meter communication problems, please check if the address of the PV side meter is set to 1, and the address of the grid side meter is set to 2.

Cable (90/194, Copper)
L1/L2/N Cable RS485 Cable (shield twisted pair)

HYS/HAS-7.6LVUSG1
14 AWG

Specification HYS/HAS-9.6LV-
USG1

HYS/HAS-11.5LVUSG1

Stripping Length HYS/HAS-7.6/9.6/11.5LV-
USG1

14 AWG

6 mm/0.24 in

24 AWG

8 mm/0.31 in

Step 1 Step 2

Procedure (for HYS series inverters)
· Clamp CT 1-1 and CT1-2 to L1/L2 cable, respectively connect the white and blue wire of CT 1-1 to terminals 1/3, and respectively connect the white and blue wire of CT 1-2 to terminals 4/6. The arrow on the surface of CT should point to the grid.
· Connect grid L1/L2/N to meter’s terminals 2/5/10.

Step 3

· Respectively connect meter’s terminals A and B to inverter METER_A and METER_B.

RS485B RS485A

CT 1-2 CT 1-1 ·

L1 L2

N

PE N L1 L2

Utility Meter

Smart Meter

CT 1-2

CT 1-1

Grid
Grid Side

Load

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Hybrid/AC-coupled Inverter User Manual

Step 1 Step 2

Procedure (for HAS series inverters)
· The connection method of smart meter 1 is the same as that described above. The arrow on the surface of CT should point to the grid.
· If the PV inverter is connected to the grid port, connect terminals 2/5/10 of smart meter 2 to PV inverter L1/L2/N, and respectively connect meter’s terminals A and B to inverter METER_A (3) and METER_B (4). Note that the arrow on the surface of CT should point to the opposite direction of the PV inverter.

RS485B RS485A

PV Inverter

Inverter Side

CT 1-2

CT 1-1

Smart Meter 2

CT 1-2 CT 1-1 ·
L1 L2 N

PE N L1 L2

Utility Meter

Smart Meter 1

CT 1-2

CT 1-1

Grid
Grid Side

RS485B RS485A

Load

Note: There is one smart meter in our packing box, and the other needs to be purchased from Hoymiles. The meter address is automatically set. If there are meter communication problems, please check if the address of the PV side meter is set to 1, and the address of the grid side meter is set to 2.

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Hybrid/AC-coupled Inverter User Manual 3.4.7.2 DI Connection There is an integrated DI (IN+, IN-) as the dry contact input to the bypass contactor of the inverter.
3.4.7.3 DO Connection The inverter has integrated a multiple-function dry contact (DO1 and DO2). The DO1 can be set to one of the functions as follows, Earth Fault Alarm, Load Control, and Generator Control. The DO2 can control the external bypass contactor if installed.

PE N L1 L2
DO1 COM1
ON NO1
Inverter

Contactor

PE N L1 L2

DO1 COM1
ON NO1
Inverter

or light buzzer

Load DO1-Load Control
© 2024 Hoymiles Power Electronics Inc. All rights reserved.

DO1-Earth Fault Alarm
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Hybrid/AC-coupled Inverter User Manual
3.4.7.4 External Emergency Power Off Switch Connection (Optional) If the inverter is installed in a place where it is inaccessible to first responders, an external Emergency Power Off (EPO) switch must be installed to manually shut down the system in case of emergency. The external EPO switch is not provided by Hoymiles and should be purchased separately. It must meet the requirements as follows, · An ON/OFF position and an ON/OFF position indicator; · A protection degree of NEMA 3R or above; · The installation location should be readily accessible.
Procedure

Step 1

· Remove the jumper wires between EPO_P and EPO_N.

Step 2

· Connect one end of the positive and negative wires to the EPO_P and EPO_N terminals, and connect the other end to the external EPO switch.

1

2

ON ON

1

ON OFF

EMERGENCY STOP

Note: If an external Emergency Power Off switch is not needed, please do not remove the jumper wires.
3.4.7.5 BMS Connection BMS is used to communicate with compatible Li-ion batteries. If a lead-acid battery is used to work with this inverter, the battery temperature sensor in the packing list shall be used to monitor the battery temperature.
Procedure

Step 1

· Strip the communication cable insulation with an ethernet wire stripper, and lead the corresponding signal cables out. Insert the signal cables into the RJ45 plug in the correct order, and crimp it with a network cable crimper.

Step 2

· Insert the RJ45 plug into the BMS port, and gently pull the cable backward to make sure that the plug is completely connected to the BMS port. The pin definition of BMS or battery temperature sensor is shown in the “3.4.6 Communication Cable Connection”.

ON ON

1

2PV1+ PV1- PV2+ PV2-

ON ON

1

1-NTC+ 2-NC 3-NTC4-CANH 5-CANL 6-NC 7-485A 8-485B

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Hybrid/AC-coupled Inverter User Manual 3.4.7.6 DTS Connection DTS-4G-G1 and DTS-Wi-Fi-G1 Procedure

Step 1

· Remove the DTS port cover plate.

Step 2

· Insert the DTS into the USB port, and tighten the screws.

Step 3

· Respectively connect the ends of the DTS connecting line to the corresponding ports.

1

2

3

PV1+ PV1- PV2+ PV2-

ON ON

1

0.6-0.8 N·m

Step 1&2 Step 3&4
Step 5

DTS-Ethernet-G1 Procedure
· Remove the DTS port cover plate. · Insert the DTS-Ethernet into the USB port, and tighten the screws.
· Respectively connect the ends of the DTS connecting line to the corresponding ports. · Unscrew the swivel nut from the connector.
· Insert the RJ45 plug (pin definition is shown in the right figure) into the connector until there is an audible click sound. (Note that the RJ45 plug with cable sheath cannot be inserted.)
· Thread the cable of an appropriate length through the connector. · Tighten the cable gland.

1

2

3

PV1+ PV1- PV2+ PV2-

ON ON

1

4

2

1

3

0.6-0.8 N·m

5

4

2

1

6
1
1 2

3
2
0.8-1.5 N·m 0.5-0.8 N·m

PARA1

8-NC 7-NC 6-RX5-NC 4-NC 3-RX+ 2-TX1-TX+

36

Hybrid/AC-coupled Inverter User Manual

Indicator Status

Description

RUN COM NET

ON OFF ON OFF ON OFF BLINK

DTS is powered on. DTS is not powered on. Proper communication with the inverter. Improper communication with the inverter. Proper communication with S-Miles Cloud.
Improper communication with S-Miles Cloud.
Improper communication with S-Miles Cloud, but the network is connected.

3.4.8 Installing the Wiring Box Cover

Procedure

· After the wires are firmly and correctly connected, install the wiring box cover with a T20 screwdriver.

T20

1.2 N·m

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Hybrid/AC-coupled Inverter User Manual

3.5 Operation 3.5.1 Commissioning

NOTICE

Before the commissioning of the inverter, make sure: · The inverter DC switch and external circuit breaker are disconnected; · Check wiring according to “3.4 Electrical Connection”; · Check whether the rapid shutdown switch is in the “ON” position; · Check whether the grid voltage is within the permissible range through the
multimeter before turning on the AC switch; · Unused terminals must be sealed using corresponding sealing plugs; · Nothing is left on the top of the inverter and battery; · Cables are routed in a safe place or protected against mechanical damage; · Warning signs and labels are intact.

Step 1

System Power-on Procedure If the inverter is connected to the battery, turn on the battery power switch and DC breaker.

Step 2

Turn on the AC breaker between the inverter and the grid.

Step 3

(Only for HYS) Rotate the DC switch to “ON” if the inverter is connected to the PV strings.

Step 4

Check whether the inverter is operating properly through the inverter indicators status.

3.5.2 Decommissioning

NOTICE

After powering off the inverter, follow the steps below if needed: · Wait at least 5 minutes after the LED indicators turn off to release the
internal energy; · Disconnect all cables; · Remove DTS and power meter; · Remove the inverter from the wall, remove the bracket if necessary, and
finally pack the inverter and accessories; Please strictly follow the procedure below. Otherwise, it will cause lethal voltages or unrecoverable damage to the inverter.

Step 1

System Power-off Procedure Stop the inverter from working via the Hoymiles App.

Step 2

Disconnect the AC breaker between the inverter and the grid.

Step 3

(Only for HYS) Rotate the DC switch to “OFF”.

Step 4

Turn off the DC breaker between the inverter and the battery.

Step 5

Check whether the inverter indicators are off.

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Hybrid/AC-coupled Inverter User Manual
3.5.3 S-Miles Cloud App The S-Miles Cloud App has been developed for the Hoymiles inverter and offers the following features:
a. Network configuration; b. Local installation assistant; c. System monitoring. Please download the S-Miles Cloud App from the Google Play Store or the Apple App Store. The QR code below can also be scanned to download the App. Please refer to the S-Miles Cloud User Manual from www.hoymiles.com/resources/download/ for details.

S-Miles Installer

S-Miles End-user

3.5.3.1 DTS Online Setting
1. Search “Hoymiles” in the App Store (iOS) or the Play Store (Android), or scan the QR code to download the Hoymiles Installer App. 2. Open the app and log in with your installer account and password. For new Hoymiles installers, please apply for an installer account from your distributor in advance. 3. Use the App to connect to the DTS. (a) Open the Installer App on your smartphone/tablet and log in. Tap on “O&M” at the bottom of the page, and then tap on “Network Config”.

39

Hybrid/AC-coupled Inverter User Manual (b) Select the DTS’s wireless network and tap “Connect”. (The network name of the DTS consists of DTS and product serial number, and the default password is ESS12345.)
4. Network configuration. (a) Upon successful connection, tap on “Network Config” again and access the Network Configuration page. (b) Select the router Wi-Fi and enter the password. (c) Tap on “Send to DTU”.
5. Check the DTS indicator for a solid blue light, which signifies a successful connection. The network configuration takes about 1 minute, please be patient. If the network is not connected, please check the internet as instructed.

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Hybrid/AC-coupled Inverter User Manual 3.5.3.2 System Commissioning of Wireless Access Point (AP) Connection 1. Connect the wireless network of DTU. Open the App, and tap “Toolkit Meter Location” to configure the grid side meter. The serial number (SN) can be entered manually or identified through scanning the QR code.
2. Tap “Grid Profile Config ESS Advanced Config Meter Model” to choose “Two- phase Meter”, and Tap “Save”.
3. Tap “Inverter Management Battery Setting” to set battery type, BMS protocol, and battery capacity, and tap “Save”. (The default setting is “No battery”.)

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Hybrid/AC-coupled Inverter User Manual 4. Tap “Generator Setting”, choose the corresponding option according to whether the device connected to the GEN port is “Generator” or “Inverter”, and tap “Save”. (The default option is “None”.)
5. Make sure that all cables including DC cables, AC cables, and communication cables are properly connected, and all DC and AC switches are turned on, and then tap “Self-check”. If there is any problem, solve the problem, and tap “Self-check” again to confirm that the problem is completely solved. If there is no problem, this interface will display green checkmarks on the right of these items.

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Hybrid/AC-coupled Inverter User Manual
3.5.4 ESS Operating Modes Setting ESS Operating Mode is only for the United States, Canada, and Mexico. It is to restrict the energy exchange between the Area EPS and the energy storage sub-system (ESS). Hoymiles energy storage system has two ESS operating modes, Export Only Mode and Import Only Mode. The ESS Operating Modes can only be set through S-Miles Cloud Monitoring Platform https://global.hoymiles.com/. 3.5.4.1 Export Only Mode
If the Export Only Mode is chosen, the ESS may export active power to the Area EPS during discharging but shall not import active power from the Area EPS for ESS charging purposes. Under this mode, the Generation Control Function (GCF) is disabled, the grid input power is limited to 0 W. 3.5.4.2 Import Only Mode
If the Import Only Mode is chosen, the ESS may import active power from the Area EPS for charging purposes but shall not export active power from the ESS to the Area EPS. Under this mode, the GCF function is enabled, and the feed-in power is limited to 0 W. 3.5.4.3 Online Setting
1. Choose the plant you want to edit and click the “O&M ESS Operating Modes Setting” button to perform ESS Operating Modes setting.

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Hybrid/AC-coupled Inverter User Manual
2. Click the “Export Only Mode” or “Import Only Mode”, click “Get verification code”, enter your E-mail, and click the “Send” button to get a verification code. After you send the request, a single-use verification code will be sent to your E-mail. Enter the verification code and click “Configuration” to complete the setting.

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Hybrid/AC-coupled Inverter User Manual
3. The verification would be invalid when the configuration takes effect or when the verification code is received for 5 minutes. If you correctly enter the verification code within the valid time, this page will display “Command executed”; if you enter the wrong verification code or enter the code beyond 5 minutes, this page will display “pvm.ctl.verification_code_invalid_or_error”. Note that once the Export Only Mode or Import Only Mode is set, it will be locked and cannot be modified.

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Troubleshooting

When the system is in alarm, please log into the S-Miles Cloud App to review. The possible causes and their
troubleshooting are detailed in the following table:

Display

Possible Cause

Handling Suggestions

Grid Overvoltage

The grid voltage is higher than the permissible range.

Generally, the inverter will reconnect to the grid after the grid recovers. If the alarm occurs frequently: 1. Make sure the ESS safety configuration of the inverter is set correctly. 2. Make sure that the grid voltage in your area is stable and within the normal range. 3. Check whether the cross-sectional area of the AC cable meets the requirement. 4. If the alarm persists, contact Hoymiles technical support team.

Grid Undervoltage

The grid voltage is lower than the permissible range.

Generally, the inverter will reconnect to the grid after the grid recovers. If the alarm occurs frequently: 1. Make sure the ESS safety configuration of the inverter is set correctly. 2. Make sure that the grid voltage in your area is stable and within the normal range. 3. Check whether the AC cable is firmly in place. 4. If the alarm persists, contact Hoymiles technical support team.

Grid Overfrequency

The grid frequency is higher than the permissible range.

Grid Underfrequency

The grid frequency is lower than the permissible range.

Generally, the inverter will reconnect to the grid after the grid recovers. If the alarm occurs frequently: 1. Make sure the ESS safety configuration of the inverter is set correctly. 2. Make sure that the grid frequency in your area is stable and within the normal range. 3. If the alarm persists, contact Hoymiles technical support team.

No Grid

The inverter detects that there is no grid connected.

Generally, the inverter will reconnect to the grid after the grid recovers. If the alarm occurs frequently: 1. Check whether the grid supply is reliable. 2. Check whether the AC cable is firmly in place. 3. Check whether the AC cable is correctly connected. 4. Check whether the AC circuit breaker is disconnected. 5. If the alarm persists, contact Hoymiles technical support team.

RCD Fault

The residual leakage current is too high.

1. The alarm can be caused by high ambient humidity, and the inverter will reconnect to the grid after the environment is improved. 2. If the environment is normal, check whether the AC and DC cables are well insulated. 3. If the alarm persists, contact Hoymiles technical support team.

PV Reverse Connection

The inverter detects that the PV strings are reversely connected.

1. Check whether the corresponding string is of reverse polarity. If so, disconnect the DC switch and adjust the polarity when the string current drops below 0.5 A. 2. If the alarm persists, contact Hoymiles technical support team.

PV Undervoltage

The PV voltage is lower than the permissible range.

1. Check whether the DC cable is firmly in place. 2. Check whether there is a PV module shaded. If so, remove the shade and ensure the PV module is clean. 3. Check whether the PV module is in abnormal aging. 4. If the alarm persists, contact Hoymiles technical support team.

PV Overvoltage

The PV voltage is higher than the permissible range.

1. Check the specification and numbers of corresponding string PV modules. 2. If the alarm persists, contact Hoymiles technical support team.

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Hybrid/AC-coupled Inverter User Manual

Display

Possible Cause

Handling Suggestions

Over Temperature ISO Fault

The temperature inside the inverter is higher than the permissible range.

1. Make sure that the installation complies with the instructions from User Manual. 2. Check whether the alarm “Fan Fault” occurs. If so, replace the faulty fan. 3. If the alarm persists, contact Hoymiles technical support team.

The insulation impedance of the PV string to the ground is too low.

1. Use a multimeter to determine if the resistance between the earth and the inverter frame is close to zero. If not, please ensure that the connection is good. 2. If the humidity is too high, an isolation fault may occur. Attempt to restart the inverter. If the fault persists, check it again when the weather turns fine. 3. Check the resistance to ground from the PV module/ cable. Take corrective measures in case of leading to a short circuit or damaged insulation layer. 4. If the alarm persists, contact Hoymiles technical support team.

Arc Fault

The inverter detects that there is an arc fault.

1. Disconnect the DC switch and check whether DC cables are damaged and whether the wiring terminals are loose or in poor contact. If so, take corresponding corrective measures. 2. After taking corresponding measures, reconnect the DC switch. 3. If the alarm persists, contact Hoymiles technical support team.

EPS Load Overpower

The EPS load power is higher than the permissible range.

1. Reduce the power of EPS loads, or remove some EPS loads. The inverter will restart automatically. 2. If the alarm persists, contact Hoymiles technical support team.

Meter Reverse Connection

The inverter detects that the Meter or CT is reversely connected.

1. Make sure that the installation complies with the instructions from User Manual. 2. If the alarm persists, contact Hoymiles technical support team.

Meter Communication Fault

The inverter detects that there is a meter communication fault.

1. Check whether the Meter communication cable and terminal are abnormal. 2. Reconnect the Meter communication cable. 3. If the alarm persists, contact Hoymiles technical support team.

Battery Reverse Connection

The inverter detects that the battery wirings are reversely connected.

1. Check the battery for polarity correctness, and correct it if necessary. 2. If the alarm persists, contact Hoymiles technical support team.

Battery Voltage Fault

The battery voltage is higher than the permissible range.

1. Check if the battery input voltage is within the normal range. 2. If the alarm persists, contact Hoymiles technical support team.

BMS Communication Fault

The inverter detects that there is a BMS communication fault.

1. Check whether the BMS communication cable and terminal are abnormal. 2. Reconnect the BMS communication cable. 3. If the alarm persists, contact Hoymiles technical support team.

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Hybrid/AC-coupled Inverter User Manual

Display

Possible Cause

Handling Suggestions

BMS Battery Alarm

The inverter detects that there Try to restart the battery. If the fault persists, contact

is a battery fault from BMS.

the battery manufacturer.

BMS Battery Fault Relay Self-check Fault

The inverter detects that there is a battery fault from BMS.
The inverter detects that there is a relay self-check fault.

Try to restart the battery. If the fault persists, contact the battery manufacturer.
Try to restart the inverter. If the fault persists, contact Hoymiles technical support team.

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Technical Datasheet

5.1 HYS Series Technical Parameters

Model

HYS-3.8LV-USG1 HYS-4.8LV-USG1 HYS-6.0LV-USG1 HYS-7.6LV-USG1 HYS-9.6LV-USG1 HYS-11.5LV-USG1

Battery

Battery type

Li-ion/Lead-acid

Battery voltage range (V)

40-60

Max. charge/discharge current (A)

80/80

100/100

160/160

200/200

Max. charge/discharge power (W)

3840/3840

4800/4800

7600/7600

9600/9600

Charging strategy for Li-ion battery

Self-adaption to BMS

Charging curve

3 Stages/Equalization

External temperature sensor

Optional

Communication

CAN, RS485

PV Input

Recommended max. PV power (W)

5760

7200

9000

11520

14400

Max. input voltage (V)

550

Rated voltage (V)

380

Start-up voltage (V)

150

MPPT voltage range (V)

125-500

Max. input current (A)

16/16

32/32

Max. short circuit current (A)

20/20

40/40

MPPT number/Max. input strings number

2/2

2/4

AC Input and Output (On-grid)

Rated output power (W)

3840

4800

6000

7680

9600

11520

Max. output apparent power (VA)

3840

4800

6000

7680

9600

11520

Max. input power (W)

7680

9600

15360

19200

Rated AC output voltage/Range (V)

240, 211-264

Rated grid frequency (Hz)

60

Max. output current (A)

16

20

25

32

40

48

Max. input current (A)

32

40

64

80

Power factor

0.99 (0.8 leading … 0.8 lagging)

THDi (@rated output)

<3%

AC Output (Off-grid)

Rated output power (W) Max. output apparent power (VA)(1)

3840 7680, 10s

4800 9600, 10s

7680 15360, 10s

9600 19200, 10s

Back-up switch time (ms)

<10

Rated output voltage (V)

120/240 (split phase)

Rated output frequency (Hz)

60

Max. continuous output current (A)

16

20

32

40

THDv (@linear load)

<3%

Efficiency

MPPT efficiency

99.9%

Max. efficiency

97.6%

CEC efficiency

97.0%

Max. battery discharge to AC efficiency

95.0%

Protection

Anti-islanding protection

Integrated

PV arc fault detection

Integrated

PV string input reverse polarity protection

Integrated

Compliant MLRSD products

Integrated

Insulation resistor detection

Integrated

Residual current monitoring unit

Integrated

AC over current protection

Integrated

AC short current protection

Integrated

AC overvoltage and undervoltage protection

Integrated

Surge protection

DC Type II/AC Type III

General

Dimensions (W × H × D)

19.8 × 24.2 × 7.95 inch (502 × 615 × 202 mm)

19.8 × 29.1 × 7.95 inch (502 × 740 × 202 mm)

Weight

68.3 lbs (31 kg)

90.4 lbs (41 kg)

Mounting

Wall Mounting

Operating temperature

-13 to +149 (>113, derating)/-25 to +65 (>45, derating)

Relative humidity

0-95%, no condensing

Cooling

Natural Convection

Topology (Solar/Battery)

Transformerless/High-frequency Isolation

Altitude

6562 ft (2000 m)

Protection degree

Type 4X

Noise (dB)

<40

User interface

LED & App

Digital input/output

1 × DI, 2 × DO

Communication

RS485, Optional: Wi-Fi/4G/Ethernet

Warranty

10 Years

Certifications and Standards

Grid connection standard

IEEE 1547-2018, IEEE 1547.1-2020, SRD2.0

Safety/EMC standard

UL 1741, CSA C22.2 No.107.1, UL 1741 CRD, UL 1741 SB, FCC Part 15 Class B

AFCI

UL 1699B

Software approval

UL 1998

(1) Can be achieved only if PV and battery power are sufficient.

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5.2 HAS Series Technical Parameters

Model

HAS-3.8LV-USG1 HAS-4.8LV-USG1 HAS-6.0LV-USG1 HAS-7.6LV-USG1 HAS-9.6LV-USG1 HAS-11.5LV-USG1

Battery

Battery type

Li-ion/Lead-acid

Battery voltage range (V)

40-60

Max. charge/discharge current (A)

80/80

100/100

160/160

200/200

Max. charge/discharge power (W)

3840/3840

4800/4800

7600/7600

9600/9600

Charging strategy for Li-ion battery

Self-adaption to BMS

Charging curve

3 Stages/Equalization

External temperature sensor

Optional

Communication

CAN, RS485

AC Input and Output (On-grid)

Rated output power (W)

3840

4800

6000

7680

9600

11520

Max. output apparent power (VA)

3840

4800

6000

7680

9600

11520

Max. input power (W)

7680

9600

15360

19200

Rated AC output voltage/Range (V)

240, 211-264

Rated grid frequency (Hz)

60

Max. output current (A)

16

20

25

32

40

48

Max. input current (A)

32

40

64

80

Power factor

0.99 (0.8 leading … 0.8 lagging)

THDi (@rated output)

<3%

AC Output (Off-grid)

Rated output power (W)

3840

4800

7680

9600

Max. output apparent power (VA)

7680, 10s

9600, 10s

15360, 10s

19200, 10s

Back-up switch time (ms)

<10

Rated output voltage (V)

120/240 (split phase)

Rated output frequency (Hz)

60

Max. continuous output current (A)

16

20

32

40

THDv (@linear load)

<3%

Efficiency

Max. battery discharge to AC efficiency

95.0%

Protection

Anti-islanding protection

Integrated

AC over current protection

Integrated

AC short current protection

Integrated

AC overvoltage and undervoltage protection

Integrated

Surge protection

DC Type II/AC Type III

General

Dimensions (W × H × D)

19.8 × 24.2 × 7.95 inch (502 × 615 × 202 mm)

19.8 × 29.1 × 7.95 inch (502 × 740 × 202 mm)

Weight

61.7 lbs (28 kg)

81.6 lbs (37 kg)

Mounting

Wall Mounting

Operating temperature

-13 to +149 (>113, derating)/-25 to +65 (>45, derating)

Relative humidity

0-95%, no condensing

Cooling

Natural Convection

Topology (Battery)

High-frequency Isolation

Altitude

6562 ft (2000 m)

Protection degree

Type 4X

Noise (dB)

<40

User interface

LED & App

Digital input/output

1 × DI, 2 × DO

Communication

RS485, Optional: Wi-Fi/WLAN/GPRS

Warranty

10 Years

Certifications and Standards

Grid connection standard

IEEE 1547-2018, IEEE 1547.1-2020, SRD2.0

Safety/EMC standard

UL 1741, CSA C22.2 No.107.1, UL 1741 CRD, UL 1741 SB, FCC Part 15 Class B

Software approval

UL 1998

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Hybrid/AC-coupled Inverter User Manual

Appendix A: Power Quality Response Modes
1. Voltage Trip
When the power grid voltage is abnormal, the inverter can be turned off for a certain period of time.

Shall trip function

Default setting

Voltage (V)

Clearing time (s)

Ranges of allowable settings

Voltage (V)

Clearing time (s)

OV2

1.20

0.16

Fix at 1.2

Fix at 0.16

OV1

1.10

13.0

1.10-1.20

1.0-13.0

UV1

0.88

21.0

0.0-0.88

2.0-50.0

UV2

0.5

2.0

0.0-0.50

0.16-21.0

2. Consecutive HVRT_240 V&120 V The ability of a generating unit or generating plant to stay connected during voltage dips or swells.

Voltage range (p.u.)
V>1.20
1.10<V1.20

Operating mode/ response
Cease to Energize(2) Momentary Cessation(3)

Minimum ride through time (s)
N/A 12

Maximum response time (s) (design criteria)
0.16
0.083

0.88V1.10

Continuous Operation

Infinite

N/A

0.70V<0.88

Mandatory Operation

20

0.50(1)V<0.70

Mandatory Operation

10

V<0.50(1)

Momentary Cessation

1

N/A N/A 0.083

(1): Cessation of current exchange of DER with Area EPS in not more than the maximum specified time and with no intentional delay. This does not necessarily imply disconnection, isolation, or a trip of the DER. This may include momentary cessation or trip. (2): Temporarily cease to energize an EPS, while connected to the Area EPS, in response to a disturbance of the applicable voltages or the system frequency, with the capability of immediately restoring output of operation when the applicable voltages and the system frequency return to within defined ranges. (3): The voltage threshold between mandatory operation and momentary operation may be changed by mutual agreement between the Area EPS operator and DER operator.
3. Frequency Trip_240 V When the power grid frequency is abnormal, the inverter can be turned off for a certain period of time.

Shall trip function

Default setting

Frequency (Hz)

Clearing time (s)

Ranges of allowable settings

Frequency (Hz)

Clearing time (s)

OF2

62.0

0.16

61.8-66.0

0.16-1000

OF1

61.2

300.0

61.0-66.0

180.0-1000

UF1

58.5

300.0

50.0-59.0

180.0-1000

UF2

56.5

0.16

50.0-57.0

0.16-1000

4. H/LFRT The ability of a generating unit or generating plant to stay connected during frequency dips or swells.

Frequency range (Hz)

Operating mode

Minimum time (s)

f>62.0

N/A

61.2<f61.8

Mandatory Operation

299

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Hybrid/AC-coupled Inverter User Manual

58.8f61.2

Continuous Operation

57.0f<58.8

Mandatory Operation

f<57.0

N/A

5. Volt-Var (Default) The inverter will change reactive output power based on voltage change.

Infinite 299 N/A

Setting point

Voltage range

Voltage default

Vref

0.95Vn-1.05Vn

Un

(V1, Q1)

(Vref-0.18Vn)-(V2-0.02Vn)

Vref-0.08Vn

(V2, Q2)

(Vref-0.02Vn)-Vref

Vref-0.02Vn

(V3, Q3)

Vref-(Vref+0.03Vn)

Vref+0.02Vn

(V4, Q4)

(V3+0.02Vn)-(Vref+0.18Vn)

Vref+0.08Vn

Tr: Open loop response time, default 5s, range 1-90s.
6. Vol-Watt (Default) The inverter will change reactive output power based on active power change.

Q range/default /
(0-60%) Sn/+40%Sn (-60%-60%) Sn/0 (-60%-60%) Sn/0
(-60%-0) Sn/-44%Sn

Ranges of allowable settings
(P2+0.1 Prated)-Prated 0.4 Prated-0.8 Prated Pmin-(P2-0.1 Prated) (P’2-0.1 P’rated)-P’min 0.8 P’rated-0.4 P’rated P’rated-(P’2+0.1 P’rated)

Default settings
Prated 50%Prated 20%Prated -20%Prated -50%Prated
-Prated
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Hybrid/AC-coupled Inverter User Manual

Q3

-60%Sn-60%Sn

-44%Prated

Q2

-60%Sn-60%Sn

0

Q1

-60%Sn-60%Sn

0

Q’1

-60%Sn-60%Sn

0

Q’2

-60%Sn-60%Sn

0

Q’3

-60%Sn-60%Sn

44%Prated

Note: Prated is the nameplate active power rating of the DER. P’rated is the maximum active power that the DER can absorb. Pmin is the minimum active power output of the DER. P’min is the minimum, in amplitude, active power that the DER can absorb. P’ parameters are negative in value. The maximum DER response time to maintain constant reactive power shall be 10s or less.
7. Vol-Watt (Default) The inverter will change active power output power based on voltage change.

Voltage-active power parameters Ranges of allowable settings

Default values for DER

V1

1.05Vn-1.09Vn

1.06Vn

P1

N/A

Prated

V2

(V1+0.01Vn)-1.10Vn

1.1Vn

P’2

0-P’rated

0

Open loop response time

0.5s-60s

10s

8. Fre-Watt (Default) The inverter will change active power output power based on frequency change.

Parameter dbOF, dbUF (Hz)

Default settings 0.036

Ranges of allowable settings 0.017(1)-1.0

kOF, kUF

0.05

0.03-0.05

Response time (small-signal) (s)

5

1-10

(1): A deadband of less than 0.017 Hz shall be permitted.

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Appendix B: HECO
1. Fre-Watt (Default)
The inverter will change active power output power based on frequency change.

Parameter

Default settings

Ranges of allowable settings

dbOF, dbUF (Hz)

0.036

0.017-1.0

kOF, kUF

0.07

0.02-0.07

Response time (small-signal) (s)

5

0.2-10

2. H/LFRT (Default) The ability of a generating unit or generating plant to stay connected during frequency dips or swells.

Frequency range (Hz)

Operating mode

Minimum time (s)

f>65.0

N/A

63.0<f65.0

Mandatory Operation

299

57.0f63.0

Continuous Operation

Infinite

50.0f<57.0

Mandatory Operation

299

f<50.0

N/A

54

S-Miles Installer

S-Miles End-user

Floor 6-10, Building 5, 99 Housheng Road, Gongshu District, Hangzhou 310015 P. R. China +86 571 2805 6101
General inquiry: info@hoymiles.com Technical support: service@hoymiles.com
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