BLUETTI EP760 Hybrid Inverter User Manual v2.0

About BLUETTI

BLUETTI is committed to sustainable future through green energy storage solutions. The company is present in over 100 countries and trusted by millions of customers worldwide.

About This Manual

Purpose

This user manual describes the installation, electrical connection, commissioning, maintenance, and troubleshooting of the EP760. It is intended for installation, operation, and maintenance technicians, as well as owners of the EP760 Hybrid Inverter.

Symbol Conventions

The manual uses the following symbols to highlight important information:

• Danger: Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
• Warning: Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
• Caution: Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
• Attention: Indicates a potentially hazardous situation which, if not avoided, could cause substantial damage to property and the environment.
• Instruction: Contains important additional information as well as useful tips for the safe, efficient, and hassle-free operation of the product.

1. Safety Guidelines

1.1 Safety Instructions

1.1.1 Disclaimer

Read this manual for instructions on the proper use and safety information for the unit. Pay attention to the "Instruction", "Caution", "Warning", and "Danger" symbols and follow the instructions carefully to avoid injury or damage. BLUETTI is not liable for damages resulting from force majeure events, improper handling or installation, inadequate storage conditions, customer negligence, unauthorized modifications, or use in devices with high-performance UPS requirements.

1.1.2 General Safety

Danger: Do not install, use, or maintain the unit in adverse weather conditions. Always turn off the power source before electrical work. Do not clean with water, disassemble, modify, or repair the equipment yourself. Regularly inspect for damage. Use a tester to check for dangerous voltage. If the shell is cracked, do not use it. Use a dry powder fire extinguisher in case of fire. Evacuate and call emergency services if a fire occurs. Use genuine BLUETTI cables and accessories. Keep away from heat sources, direct sunlight, flammable liquids, gases, or explosive materials. Ensure good ventilation. Do not block openings. Do not stack objects on the unit. Do not move the unit during operation. Turn off immediately in case of malfunction. Do not place on unstable surfaces. Keep away from children and pets. Comply with applicable laws and regulations.

Instruction: Transportation, wiring, and maintenance must comply with all applicable laws, regulations, and standards. User-provided materials and tools must meet specified requirements.

1.1.3 Personnel Requirements

Installation, commissioning, and maintenance should only be performed by trained professionals with proper safety precautions and operating practices. Professionals must possess necessary qualifications and certifications for high-voltage operations, working at heights, and specialized equipment operations.

1.2 Installation Safety

Danger: Avoid working with live electrical components. Double-check equipment for damage before installation. Ensure all switches are OFF. Do not touch terminals while the equipment is running. Installation must be performed by qualified professionals. Cables must be securely connected and meet specifications. Do not touch the equipment shell as it may become hot.

1.2.1 General Requirements

Turn off and isolate all electricity at the main panel before starting work. Use safety tags and lockout procedures. Test circuits before proceeding. Remove idle packaging materials after installation. Keep unauthorized personnel away from the EP760. Pack equipment and accessories to protect them from impact. Seal wiring ports with fireproof and waterproof materials. Do not alter or damage markings or nameplates. Ensure all safeguards are in place and tightened. Secure the EP760 firmly. Clean with a non-abrasive cloth; do not use water or harsh chemicals. Follow installation instructions.

1.2.2 Anti-static Requirements

Wear appropriate personal protective equipment (PPE), including safety glasses, hearing protection, dust mask, gloves, anti-static bracelet, and safety boots. Ensure the anti-static bracelet is properly grounded if used.

1.2.3 Drilling Requirements

Wear goggles and protective gloves when drilling. Shield and protect equipment from debris. Drill holes are forbidden on the unit as it may damage electromagnetic shielding performance and cause short circuits.

1.3 Electrical Safety

1.3.1 General Requirements

Ensure all electrical connections comply with local electrical standards. Consult national or regional electricity authorities before connecting to the home grid. User-prepared cables must adhere to local laws and regulations. Use insulated tools for high-voltage operations. Wear anti-static gloves and avoid static-generating clothing.

1.3.2 Grounding Requirements

Always make the ground connection first and disconnect it last. Do not damage the grounding conductor. Confirm secure and reliable grounding before operation.

1.3.3 Wiring Requirements

Keep cables at least 30mm away from heating devices. Group similar cables together and keep different types at least 30mm apart without intertwining. Ensure PV grid-connected cables are firmly connected, well-insulated, and have proper specifications. Protect cables when passing through pipes or holes. Install cables in environments above 0°C. If stored below 0°C, allow cables to acclimate to room temperature for at least 24 hours before installation.

1.4 Maintenance Requirements

Danger: The equipment generates high voltage during operation, which can cause electric shock. Strictly follow safety instructions and electrical safety codes.

Maintenance Steps:

1. Disconnect the power grid.
2. Disconnect the battery and solar systems.
3. Wait at least 30 minutes for the equipment to discharge.

Follow anti-static requirements. Contact an authorized service center for maintenance. Place warning signs to prevent unauthorized access. Establish a reliable grounding connection. Wear PPE. Use tools correctly. Do not touch energized equipment. Do not clean electrical components with water. Do not stand, lean, or sit on the equipment. Do not damage equipment modules.

1.5 Transportation Requirements

All EP760 components leave the factory in optimum condition. Use original or appropriate packaging for safe transportation. Inspect for damage upon receipt and note it on the delivery receipt. The shipping company is responsible for any damage or loss during transportation.

1.6 Storage Requirements

When not in use for extended periods, power off and remove all electrical connections. Store in a well-ventilated and spacious place. Do not store with flammable liquids, gases, or explosive materials. Clean the surface frequently with a dry soft cloth. Keep away from children and pets. Do not stack anything on top of the equipment. Avoid exposure to rain, humidity, or direct sunlight. Refer to the Specifications chapter for storage temperature details.

1.7 Handling Requirements

The number of people required for handling depends on the product weight:

1.8 Label Description

The symbols on the box and the nameplate on the side contain important information for safe operation and product parameters.

2. EP760

The EP760 is an energy storage photovoltaic grid-connected inverter that handles photovoltaic input, grid-connected charging, and discharging. It is compatible only with the B500 BESS and must work with it. The inverter has not been tested to AS/NZS 4777.2:2020 for multiple phase inverter combinations, so such combinations should not be used, or external devices should be used in accordance with AS/NZS 4777.1 requirements.

2.1 Working Modes

The EP760 offers four operating modes:

• Mode 1: Combines with an existing grid-connected PV system via AC coupling. Prioritizes PV power for the load, charges batteries with excess power, and feeds surplus energy back to the grid.
• Mode 2: In the absence of a PV system, the load is powered by the backup battery. When the battery charge is depleted, the system switches to grid power.
• Mode 3: When the grid is disconnected, the PV and backup batteries work together to power the load.
• Mode 4: Batteries are charged from the grid. The BLUETTI App allows flexible setting of charging time and power.

2.2 Features

• Solar Energy Optimization: Triple MPPT charge controllers maximize solar input and store energy in LiFePO4 batteries. Works with grid-connected PV systems.
• Grid-Connected Flexibility: Allows grid charging, seamless backup power during outages, and grid power bypassing to supply home appliances directly.
• App Control & Monitoring: Provides various ports (RS485, Ethernet, Bluetooth, WLAN, CAN) for monitoring and configuration via the BLUETTI App.
• Enhanced Connectivity: Offers interfaces for external devices, including CT for energy usage monitoring, COM for smart meter integration, and DRMs for diesel generator compatibility.
• Seamless Device Integration: Designed with I/O ports for effortless connection with external devices.
• Battery Expansion: Supports 2-4 battery packs (B500) for expanded capacity.

2.3 Inverter Overview

2.3.1 EP760 Inverter Appearance

The EP760 inverter has a specific physical appearance with ports and indicators as detailed in the manual's diagrams.

2.3.2 EP760 Inverter Dimensions

The dimensions of the EP760 inverter are 626mm (Length) x 368mm (Height) x 324mm (Width).

2.4 Inverter Interface

2.4.1 EP760 Interface

The EP760 features various interfaces for different connections:

2.4.2 Interface Description

Detailed descriptions of the interfaces and required cables:

2.4.3 USB

The USB port is used for EP760 inverter firmware upgrades. The USB drive should be formatted as FAT32, with a size of no more than 32GB.

2.4.4 DRM Port

The DRM port supports DRMO functionality with specific pin definitions for generator communication and external input/output.

2.4.5 LINK PORT 1 & LINK PORT 2

2.4.6 CT Port

2.4.7 COM Port

2.5 LED Indicator

The LED indicator shows the status of the inverter:

2.6 Buzzer Alarm

When a fault occurs, the buzzer emits a series of 5 beeps. The buzzer alarm can be turned off in the BLUETTI App.

2.7 Inverter Cables

Required and optional cables for the EP760:

2.8 Export Limit Control

The EP760 features an export limit control function compliant with AS/NZS4777.2:2020. This function, managed via the BLUETTI App, uses a current transformer (CT) to monitor grid power information and control the inverter's output to limit power export. The system utilizes a closed-loop feedback control algorithm with PI adjustment to manage output power based on target signals and real-time feedback.

How to Set and Control

1. Download and install the BLUETTI App. Register and log in.
2. Connect to the EP760 via Bluetooth or Wi-Fi.
3. Navigate to Operation Settings and then Advanced Settings.
4. For soft limit, enable "Feed into Grid" and set the maximum discharge power and current. The limit is the smaller of the set discharge power or the product of discharge current and voltage.
5. For hard limit, enable the function as per the app instructions.

3. IoT Controller

3.1 Communication Principle

The IoT controller supports WiFi and Bluetooth dual-mode communication, enabling connectivity between the EP760 and the BLUETTI App. System data can be uploaded to the BLUETTI server via WiFi for remote monitoring and control.

3.2 IoT Controller Overview

The IoT controller has the following components:

• 1. Menu Button: Press and hold for 5s to factory reset.
• 2. WiFi Indicator: Flashes until connected to WiFi.
• 3. Bluetooth Indicator: Flashes until connected to Bluetooth.
• 4. Reboot Button: Press to reboot the controller.

3.3 Safety Instructions

The IoT controller is only applicable to BLUETTI products. Keep it away from heat sources and flammable materials. Inspection and maintenance should be performed by qualified personnel. Do not block openings. Keep out of reach of children. Use a dry powder fire extinguisher in case of fire.

3.4 Connection and Operations

1. Plug the IoT cable into EP760 LINK PORT 1.
2. Turn on EP760; the IoT controller starts automatically.
3. Configure the controller in the BLUETTI App (download via App Store/Google Play).
4. Scan the QR code to download the BLUETTI App.
5. Register your BLUETTI account via the app.
6. Connect the App to EP760 via Bluetooth or WiFi.
7. Firewall Settings: If using a firewall, allow access to port 18760 for outbound communication.

Contact Information

For more information or customer service, please visit:

• BLUETTI Support
• BLUETTI Official
• Social Media: @bluetti_australia, @bluetti.au, @bluetti_inc
• Email (AU Customer Service): sale-au@bluettipower.com
• Address (AU Customer Service): Unit 15, 25 Gibbes Street Chatswood NSW 2067
• SHENZHEN POWEROAK NEWENER CO., LTD. Address: F19, BLD No.1, Kaidaer, Tongsha Rd No.168, Xili Street, Nanshan, Shenzhen, China
• Website: https://www.bluettipower.com