Hoymiles HAS-LV-EUG1 Series AC-coupled Inverter Quick Installation Guide

1 General Declaration

The information in this quick installation guide is subject to change due to product updates or other reasons. ⚠️ This guide cannot replace the product labels or the safety precautions in the user manual unless otherwise specified. All descriptions here are for guidance only. ℹ️

Before installations, read through the quick installation guide and the user manual to learn about the product and the precautions.

All installations should be performed by trained and knowledgeable technicians who are familiar with local standards and safety regulations.

Check the deliverables for correct model, complete contents, and intact appearance. Contact the manufacturer if any damage is found or any component is missing.

Use insulating tools and wear personal protective equipment when operating the equipment to ensure personal safety. Wear anti-static gloves, clothes, and wrist strip when touching electron devices to protect the inverter from damage. The manufacturer shall not be liable for any damage caused by static electricity.

Strictly follow the installation, operation, and configuration instructions in this guide and user manual. The manufacturer shall not be liable for equipment damage or personal injury if you do not follow the instructions.

All cables in this article are copper cables.

2 Packing List

Ensure all components listed below are present. Contact your distributor if any items are missing or damaged.

Main Components:

• Inverter (x1)
• Bracket (x1)
• Communication Box (x1)
• Double Row Plug (x1)
• Document (x1)

Battery Connectors:

• Battery Connector (+) (x1)
• Battery Connector (-) (x1)

Terminals:

• Ground Terminal (x1)
• Grid Connector (x1)
• Generator Connector (x1)
• EPS Connector (x1)

Fasteners & Hardware:

• M4 Setscrew (x1)
• M3 Setscrew (x6)
• Communication Terminal (x12)
• AC Terminal (x9)
• M6 Expansion Screw (x4)
• Sleeve (x4)

Optional Accessories:

• Smart Meter (x1)
• CT (Current Transformer) (x1)
• Data Transfer Stick (DTS) (Optional: Wi-Fi, Ethernet, 4G)
• Battery Temperature Sensor (x1)
• RJ45 Coupler (x1)

3 Mounting the Inverter

Diagram illustrating recommended mounting clearances for the inverter. Maintain a minimum of 300 mm clearance on the sides, 200 mm at the top and bottom, and 500 mm in the front for ventilation and access. The diagram shows the bracket being attached to the wall, followed by the inverter being mounted onto the bracket.

Mounting Guidelines:

• Ensure adequate ventilation around the inverter.
• Recommended clearances: 300 mm (sides), 200 mm (top/bottom), 500 mm (front).
• Use the provided bracket and mounting hardware (M6 Expansion Screws, Sleeves).
• Follow the numbered steps in the diagram for bracket and inverter installation.

4 Wiring Diagram

Two main wiring diagrams are provided, catering to different regional regulations. The first diagram is for countries like Australia, New Zealand, and South Africa, while the second is for other regions. Both illustrate the connection of the HAS-LV Series inverter to various system components.

Diagram 1: (e.g., Australia, New Zealand, South Africa)

This diagram shows the inverter connected to a Distribution Box, BMS (Battery Management System), Battery, Meter, Grid, Generator, RCD (Residual Current Device), Normal Loads, and Utility Meter. Key connections include L (Line), N (Neutral), and PE (Protective Earth) or EPS/GEN/GRID terminals. It also shows connections for a Smart Meter, CT, and an RJ45 Coupler.

Note: Do not connect the terminal when the neutral wire and PE wire are connected together.

Diagram 2: (Other Countries)

This diagram presents a similar system layout, showing connections to the Distribution Box, BMS, Battery, HAS-LV Series Inverter, Meter, Grid, RCD, Smart Meter, and Load/Generator/Grid terminals. It also includes connections for Normal Loads and Backup Loads, with specific terminal designations for Grid PE, Generator/Inverter PE, and Backup Loads PE.

Note: Follow local wiring regulations for all installations.

Common Components in Diagrams:

• BMS/Battery: Connects to the inverter for energy storage.
• Meter: Smart Meter for energy monitoring.
• Grid: Connection to the utility power grid.
• Generator: Connection for backup generator input.
• LOAD: Connection for household loads (Normal and Backup).
• RCD: Residual Current Device for safety.
• Distribution Box: Central point for power distribution.

5 Breaker Specifications

The following table outlines the recommended DC and AC breakers for each inverter model. These specifications are crucial for system safety and proper operation.

Notes:

• If the battery has an integrated, readily accessible internal DC breaker, then no additional DC breaker is required.
• The use of a 30 mA RCD is recommended but not mandatory; please comply with local regulations for system installation.
• Main Breaker and AC Breaker (Output) specifications may depend on the connected loads.

6 Electrical Connection Steps

Follow these steps carefully to ensure correct and safe electrical connections.

Step 1: Grounding Protection Wire

Diagram shows the connection of the grounding wire to the inverter's ground terminal. A 6 mm² copper wire is recommended. The M4 setscrew should be tightened to 1.2 N·m.

• Connect the grounding wire (minimum 6 mm² copper) to the designated ground terminal on the inverter.
• Ensure the screw is securely tightened to 1.2 N·m using an M4 setscrew.

Step 2: Grid Connection (Also applicable for Generator Connection)

Diagram illustrates connecting the grid (or generator) power cables (L, N, PE) to the corresponding terminals on the inverter. Wire stripping length should be 7-8 mm for 6 mm² wires. The M4 setscrew requires a torque of 1.2 N·m.

• Prepare the grid/generator cables (L, N, PE) with a stripping length of 7-8 mm. Use wires of at least 6 mm² cross-section.
• Connect these cables to the Grid or GEN terminals on the inverter.
• Secure the connections using the M4 setscrews, tightened to 1.2 N·m.

Step 3: EPS (Emergency Power Supply) Connection

Diagram shows the connection of EPS power cables (L, N, PE) to the inverter's EPS terminals. Use 6 mm² copper wires with a stripping length of 7-8 mm. The M6 screw requires a torque of 2 N·m.

• Prepare the EPS cables (L, N, PE) with a stripping length of 7-8 mm. Use wires of at least 6 mm² cross-section.
• Connect these cables to the EPS terminals on the inverter.
• Secure the connections using the M6 screws, tightened to 2 N·m. A "[Click]" sound indicates proper locking.

Step 4: Battery Connection

Diagram illustrates connecting the battery cables (positive and negative) to the inverter. The diagram shows the cable preparation (stripping length 20-25 mm) and the locking mechanism for secure connection. Ensure correct polarity.

• Prepare the battery cables (positive and negative) with a stripping length of 20-25 mm.
• Connect the Battery Connector (+) and Battery Connector (-) to the corresponding terminals on the inverter.
• Ensure the connectors are securely locked in place.

Step 5: Signal Communication

Connection of the communication box is mandatory for monitoring and control.

Diagram shows the RJ45 terminal block and its connections for various communication interfaces. It details the pin assignments and functions for Meter, BMS, DRM, DI, Parallel operation, termination resistors, and DO outputs.

RJ45 Terminal Block Connections:

• Meter (485A, 485B): For Smart Meter communication.
• BMS (NTC+, NTC-, CANH, CANL, 485A, 485B): For Li-ion battery (CAN or RS485) or lead-acid battery (NTC temperature sensor).
• DRM (D1/5, D2/6, D3/7, D4/8, REF, COM): For external Demand Response Enabling Device.
• DI (IN-, IN+): Dry-contact input for external bypass contactor.
• Parallel (DI IN+, DI IN-, CANH, CANL, 485A_1, 485B_1, 485A_2, 485B_2): For parallel inverter operation.
• 120 Ohm (ON, OFF): Termination resistor switch for parallel operation.
• DO1 (NO1, COM1): Dry-contact output for functions like Earth Fault Alarm, Load Control, or Generator Control.
• DO2 (NO2, COM2): Dry-contact output to control the bypass contactor.

RJ45 Terminal Connection Procedure:

• Strip wires to 6-7 mm.
• Insert wires into the appropriate terminals on the RJ45 connector.
• Secure the connector using M3 screws, tightened to 0.6-0.8 N·m.

Step 6: Data Transfer Stick (DTS)

Diagrams show the installation of the Data Transfer Stick (DTS) for Wi-Fi, 4G, or Ethernet connectivity. It includes connection points for antennas and Ethernet cables, along with torque specifications for screws.

Wi-Fi and 4G Connection:

• Connect the Wi-Fi or 4G antenna to the DTS.
• Install the DTS into the designated port on the inverter.
• Secure with M3 screws (0.6-0.8 N·m).

Ethernet Connection:

• Connect an Ethernet cable to the DTS.
• Install the DTS into the designated port.
• Secure with M3 screws (0.6-0.8 N·m).

PARA1 Terminal Block:

Diagram shows the PARA1 terminal block for parallel operation, detailing connections for RX-, RX+, TX+, TX-.

• Connect the PARA1 terminal block according to the diagram for parallel inverter configurations.
• Torque specifications: 0.8-1.5 N·m for PARA1 terminal block, 0.5-0.8 N·m for other M3 screws.

7 DTS Online Setting

This section guides you through connecting the DTS to your network for remote monitoring.

1. Download the Hoymiles Installer App: Search for "Hoymiles" in the App Store (iOS) or Google Play Store (Android). Alternatively, visit the Hoymiles website for download links.
2. Log in to the App: Use your existing Hoymiles installer account credentials. New installers should apply for an account from their distributor in advance.
3. Connect to the DTS: Navigate to "O&M" > "Network Config" within the App. Select the DTS's wireless network (named using "DTS" and the product serial number) and enter the default password "ESS12345" to connect.
4. Network Configuration: Once connected to the DTS, proceed to the Network Configuration page. Select your home/router Wi-Fi network, enter the password, and click "Send to DTU".
5. Verify Connection: Check the DTS indicator light; a solid blue light signifies a successful network connection. Network configuration typically takes about 1 minute. If connection fails, re-check your internet connection and settings.

8 System Commissioning of Wireless Access Point (AP) Connection

This section covers the final setup and commissioning steps.

1. DTU Wireless Network Connection: Open the Hoymiles Installer App. Go to "Toolkit" > "Generator Setting". Select the type of device connected to the GEN port (e.g., "PV Generator", "Diesel Generator", or "None") and click "Save".
2. Meter Configuration: Click on "Meter Location" to configure the grid-side meter. You can enter the meter's serial number (SN) manually or scan its QR code. If a PV generator or diesel generator is connected, the PV-side meter also needs configuration.
3. System Self-check: Navigate to "O&M" > "Toolkit" > "Overview". Click "Self-check". This process verifies that the PV, battery, grid, EPS, and GEN connections are properly established and functioning.