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Delta AU Series User Manual

Delta AU Series
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Operation and Installation Manual for AU Series
M5-TL
M4-TL
M3-TL
AU
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Delta AU Series Specifications

General IconGeneral
SeriesAU Series
CategoryInverter
Cooling MethodForced Air Cooling
Storage Temperature-20°C to +60°C
Input Voltage200-240V
Control MethodV/F Control, Sensorless Vector Control
Protection FeaturesOvervoltage, Undervoltage, Overcurrent, Short Circuit
Communication InterfaceRS485, Modbus
Operating Temperature-10°C to +50°C
Humidity5% to 95% RH (Non-condensing)
AltitudeUp to 1000m

Summary

General Safety Information

Safety and Advisory Symbols

Explains various safety symbols used in the manual, including danger, warning, caution, and notice.

Safety Instructions

Provides essential safety instructions for inverter installation and operation, emphasizing qualified personnel.

Introduction to Solar Inverters

System Overview

Discusses the growing importance of renewable energy and the role of solar inverters.

Data Evaluation and Communication

Describes the inverter's integrated interface for operation monitoring and data downloading via PC.

Technical Structure of the Solar Inverter

Details the inverter's design, MPP tracking, casing, heat dissipation, and control systems.

Ambient Temperature Operation

Explains the inverter's operating temperature range and the derating curve for output power.

PV Input DC Voltage Range

Presents a graph showing the DC voltage input range for different M series inverter models.

Inverter Efficiency

Illustrates the inverter's efficiency at various input voltages and output power levels.

Equipment Overview

Provides an exterior view and description of the main components of the solar inverter.

Inverter Type and Safety Labels

Details the inverter's model specifications and the location of important safety labels.

Installation Procedures

Visual Inspection Before Installation

Guides on checking the inverter's condition and contents upon delivery, and handling returns.

Installation Information Guidelines

Lists essential guidelines for installing the inverter, including mounting and clearance requirements.

Mounting the Inverter

Provides instructions and diagrams for vertically mounting the inverter and ensuring proper clearance.

Electrical Connection Procedures

Details the procedures for connecting the PV and AC terminals, including wire specifications.

Protective Ground Wire Installation

Explains how to install the protective ground wire and the required screw torque.

Electrical Connections

General Safety for Electrical Connections

Reinforces safety precautions for electrical connections, including qualified personnel and PV array handling.

AC Grid Connection Requirements

Specifies that M series TL AU inverters are for single-phase grids with 230 Vac nominal voltage and 50 Hz.

External DC Switch Installation

Advises on installing external DC switches that meet AS 60947.3 standards per AS/NZS 5033.

AC Circuit Breaker Requirements

Details recommended AC branch protection for each inverter model to prevent fire hazards.

Grounding Conductor Installation

Outlines requirements for installing a grounding conductor and its termination, emphasizing safety.

Lightning and Surge Protection

States that inverters meet surge requirements but recommends external protection due to installation uniqueness.

Multiple Inverter Installation

Addresses conditions for installing multiple inverters at one location, requiring separate protection.

PV String Considerations

Discusses PV string combinations and voltage limits to ensure optimal performance and safety.

Inverter Connections General Information

General information and warnings regarding inverter connections, emphasizing qualified electricians.

PV Array String Input Connections

Provides crucial safety warnings for connecting PV array strings, emphasizing isolation and polarity verification.

Inverter AC Output Wire Connections

Details safety precautions for AC output wiring, including checking disconnects and circuit breakers.

Commissioning the PV System

Status LEDs Overview

Describes the Power, Fault, and Info LEDs and their indication of inverter status.

LED Indication Details

Details the LED messages and their corresponding behavior for normal operation, sync, and faults.

Inverter Turn-On Procedure

Step-by-step guide for safely turning on the inverter, including checking disconnects and breakers.

Inverter Turn-Off Procedure

Step-by-step guide for safely turning off the inverter, including disconnects and breakers.

M Series APP (Android) Manual

Introduces the M Series APP for monitoring, configuration, and maintenance via Bluetooth.

M Series APP Introduction

Provides a brief overview of the M Series APP's functionality for system communication.

M Series APP Installation

Lists compatibility requirements and the procedure for installing the M Series APP on an Android device.

M Series APP Connection

Guides on connecting the M Series APP to the inverter by displaying and selecting the device.

M Series APP Menu Structure

Displays the menu structure of the M Series APP, showing available functions and navigation.

M Series APP Functions

Details various functions available within the M Series APP for monitoring and managing the inverter.

Monitor: Real-time Status and Power Curve

Explains how to view real-time status, power curves, and system parameters using the app's monitor function.

IV Scan Functionality

Describes how to perform an IV scan within the app to view PV and IV curves for system analysis.

APP Configuration Settings

Outlines how to access and modify basic and other settings within the M Series APP.

APP Error Log Access

Details the procedure for accessing and reading the error log through the M Series APP.

APP History: PV and AC Data

Explains how to check historical PV and AC data using the M Series APP's history function.

APP User Information Editing

Guides on accessing and editing user information within the M Series APP.

APP Firmware Update

Describes the process of updating the inverter's firmware using a BIN file via the M Series APP.

APP RMA Request Process

Outlines the procedure for initiating a Return Merchandise Authorization (RMA) request through the M Series APP.

Production Information

Repair and Maintenance

Repair Warnings

Warns about hazardous voltage and states that the inverter contains no user-serviceable parts, voiding warranty if opened.

Decommissioning, Transport, Storage, Disposal

Covers procedures for safely decommissioning, transporting, storing, and disposing of the solar inverter.

Decommissioning Steps

Provides step-by-step instructions for safely disconnecting and removing the solar power inverter.

Packaging for Transport

Advises using original or equivalent quality packaging for transport and storage.

Transport Guidelines

Recommends transporting the solar power inverter in its original or equivalent packaging.

Storage Recommendations

Advises storing the solar power inverter in its original packaging and following technical data specifications.

Disposal Procedures

Instructs to dispose of the solar power inverter in a technically appropriate manner according to legal requirements.

Certificates and Technical Data

Certificate Information

Directs users to the website for the most recent certificates and compliance information.

Detailed Technical Data

Presents detailed technical specifications for M3-TL-AU, M4-TL-AU, and M5-TL-AU models, including input and output parameters.

Warranty Information

Glossary of Terms

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