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Austa AU Series User Manual

Grid-tied pv inverter
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AU Series
Grid-tied PV Inverter user manual
AU 12~15K3P-LV
NINGBO AUSTA SOLAR TECH CO.,LTD.

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  • Page 1 AU Series Grid-tied PV Inverter user manual AU 12~15K3P-LV NINGBO AUSTA SOLAR TECH CO.,LTD.

  • Page 3: Table Of Contents

    Contents Thank you for choosing AUSTA on-grid PV inverter. In Contents order to ensure your safety and proper use, please read the manual in details before using. Thanks for your cooperation! 1.Overview ..........................1 1.1 Use of this manual ....................1 1.2 Symbols ........................

  • Page 4: Overview

    Contents Overview 1.Overview 1.1 Use of this manual This manual mainly introduces installation, operating and maintenance of inverter and related technical parameters. It is suitable for people who install the inverters and do other related jobs. Readers need to have some knowledge of electric, electrical wiring and mechanics. Before installing this product, please read this manual carefully, and put it in a suitable place, so as to ensure that relevant personnel of installation and operation can easily get it.

  • Page 5: Nameplate

    1.3 Nameplate Take AU12K3P-LV for example...

  • Page 6: Delivery

    So, please check them when sign for them. If there is any damage, please contact the shipping company or directly contact AUSTA. Please provide photos of the damaged parts, and we will provide the best service as fast as possible.

  • Page 7: Description

    DC, converted by inverter, then output AC of the same frequency and phase with the grid, and then feed into the grid. AU series in application of PV power generation system is shown in Figure 3-1. PV Arrays...

  • Page 8: General Introduction

    3.2 General Introduction  Appearance and interface Fig 3-2 Appearance of AU6~30K3P Appearance of AU 6-30K3P (take AU10K3P for example) is as shown in Figure 3-2. Its external interface is in the bottom of the machine and is composed of PV input port +, PV input port-, communication port, DC switch, AC output.
  • Page 9 Name Description Inverter’s DC input port, connect with + PV input port + port of PV arrays Inverter’s DC input port, connect with – PV input port - port of PV arrays Electric cut off between inverter and PV DC switch arrays Connect inverter with PC through this WIFI/GPRS/RS485...

  • Page 10: Installation

    4.Installation Contents Installation Please carefully read below installation guide for AU 12-15K3P-LV. 4.1 Installation Procedure Before installing and operating this product, please strictly abide by the installation sequence and warning symbols. Start Preparations Mechanical installation Electrical Connection Overall inspection Commissioning Fig 4-1 Installation procedure 4.2 Installation Preparation ●...
  • Page 11 shipping company or directly contact us. Please provide photos of the damaged part. We will provide the best service at fast as possible. ● Tools for installation The following installation tools and parts are needed.  Spanner  Electric impact drill ...
  • Page 12 4. Do not install the inverter in the living area to avoid noise affecting daily life. 5. The installation location of the inverter should be far away from the reach of children. 6. Installation height is better to make the LCD at the same level with people’s eye so as to make it convenient to operate on the LCD.
  • Page 13 9.Enough space surrounding the inverter is needed to ensure good heat dissipation. 10. Ensure that the inverter is ventilated and dissipated smoothly. It is strictly forbidden to install the inverter in a closed space, otherwise the inverter will not work normally, and there may even be a danger of explosion.

  • Page 14: Mechanical Installation

    12. Please choose a place where you can avoid rain, snow, and direct sunlight for installation (sunlight, rain, snow, etc. will directly affect the service life of the inverter. If it is unavoidable, please shield the inverter reasonably. To ensure the best operating environment) 4.3 Mechanical Installation After moving the inverter to the installation site, install the fixing bracket to the wall through the expansion bolt (expansion bolt is M8×30) assembly, and then install the inverter to the fixing bracket.
  • Page 15 4-2 Installation size 2.Drill holes and install fixed brackets 4-3 installation steps If install the inverter on concrete wall a. Mark the drilling position on the wall according to the specifications of the fixing plate in Figure 4-2, and then drill at the marked position. A circular hole with a diameter of 10mm and a depth of 35mm. b.

  • Page 16: Electrical Connection

    Solid Spring Spring wall washer washer Flat washer Expansio Bolts n plug Note: Please cooperate with the machine before installing the fixed bracket to prevent reverse installation. The inverter must be wall-mounted vertically 4.4 Electrical Connection When performing electrical wiring work, personal protective equipment must be worn. DANGEROUS High voltage! Electrical shock!
  • Page 17 NOTE The relevant rules of the local power grid and the relevant safety instructions of the photovoltaic string must be followed. All electrical installations must comply with the electrical standards of the country/region where the installation is located. Only after getting permission from the local power supply department, can the inverter be integrated into the grid.
  • Page 18 In the figure, the L1 phase of the power grid is represented by a yellow line, the L2 phase is represented by a green line, the L3 phase is represented by a red line, and the power grid N line is represented by a black line.
  • Page 19 ● AC cable wiring steps lens 1. Turn off the AC side circuit breaker and place a "no power-on" sign to prevent it from being switched on. 2. Connect the AC side connector to the corresponding AC terminal at the bottom of the inverter. 3.
  • Page 20 Distance between inverter and grid connecting point, corresponsive Model cable(cable diameter: mm 2 ) 10-30m 30-50m 50-80m Above 80m When there is only one inverter in the project, try to avoid distance between AU12K3P-LV inverter and grid connecting point more than 80m.
  • Page 21 photovoltaic inputs can be different from each other, including: different panel types; different numbers of cells in the PV string; different inclination angles, different azimuth angles. NOTE In order to make full use of the DC input power, the PV strings of the same input should be close to the same (especially the voltage), including: the same model;...
  • Page 22 1. This series of connectors only supports multi-strand copper wires. Cut and strip as required, the stripping length is 7-8mm. 2. Crimp the wire. Place the terminal correctly in the terminal crimping pliers, then put the bare copper wire part of the cable into the terminal opening slot and press it firmly. Be careful not to damage the terminals and the copper wires of the wires.
  • Page 23 WARNING When wiring the PV cable, the positive and negative poles must be connected correctly. Please cut off the power of the system and verify whether the male and female connectors are of the same model before use. 4. After the cable is plugged in, use a special wrench or adjustable wrench to tighten the nut. In order to achieve better results, two wrenches can be used to work together.
  • Page 24 ● Grounding WARNING Since the inverter is a transformerless type, it is required that the positive and negative poles of the photovoltaic string cannot be grounded, otherwise the inverter will not operate normally. Grounding system In this PV power generation system, all non-current-carrying metal parts and equipment housings should be grounded (such as the bracket of the PV arrays, the inverter housing, etc.).

  • Page 25: Monitoring

    Figure 5-1 RS485 (standard MODBUS protocol) communication system mode Smart device Figure 5-2 WIFI/GPRS communication system mode After installing the GPRS or Wi-Fi data collector module, you can monitor the operation of the PV system through the AUSTA App program “Ausat Solar”.
  • Page 26 ● WIFI/GPRS installation...

  • Page 27: Austa Pv Wizard App -Solarlnfo

    5.2 AUSTA PV Wizard App -Solarlnfo Austa Web/Austa Solar APP is rich in functions, covering the entire life cycle of the power station, it perfectly meets the needs of one-stop management.Austa rovides installers, operation and maintenance providers, and investors with various tools covering the development period, construction period, and operation and maintenance period of the power station.At the same time, it also provides practical...

  • Page 28: Trial Run

    6.Trial run Trial run is an important step in the installation of PV Contents systems. Correct trial operation can prevent system fires, Trial run electric shocks and other accidents. 6.1 Inspection before trial run Before turning on the inverter for the first time, you need to do the following inspections. Environmental inspection 1).

  • Page 29: Shut Down & Dismantle

    hut down 7.Shut down & Dismantle Contents & Dismantle 7.1 Shut down In normal operation, there is no need to shut down the inverter manually, but it is necessary to shut down the inverter during maintenance or repair. To disconnect the inverter from the AC and DC power supply, follow the steps below, otherwise it may cause personal injury or death or equipment damage.

  • Page 30: Operating

    8.1 .1 Control panel with LCD display The panel of the AU series grid-connected PV inverter includes a LCD display. In order to better carry out the interactive operation of the man-machine interface, two LED indicator and a voice switch are set on the panel, as shown in Figure 8-1.

  • Page 31: Startup Mode

    LED indicator Figure 8-2 indicator panel ● LED display status Function Status Description Grid-connected and power generation DC is normal, AC is not powered on Running DC is normal, grid-connected standby Equipment failure DC is not powered on The communication cable or communication Communicat module is connected, and there is data interaction on the communication channel...
  • Page 32 Start Thanks For Using inverter model AU10K3P-LV Inverter SN 17Y1M1Dl POWER 10000W 3~ 400V Figure 8-3 Start interface NOTE After the PV array voltage> 250V, the system will count down for 20 seconds. Within 20 seconds, the PV array voltage will always meet the grid-connected power generation requirements before it will switch to the operation mode.
  • Page 33 In running mode, the screen display content is shown in Table 8-5 and 8-6 (take AU10K3P as an example). B voltage 240V IP address B current 0A C voltage 750V Grid-connected runtime C current0A 0: 05: 05 DC voltage 1 750V Today's power generation DC current 1 0A 0Kwh...
  • Page 34 conditions are met, and after a 20-second countdown, the inverter switches from the standby mode to the running mode. In standby mode, the second line of the LCD default interface displays standby information in cycles. The possible standby information is shown in Figure 8-6, one or more of them; tap the front panel to switch to other View detailed information on the interface;...

  • Page 35: Power Generation Process

    interface. NOTE Tap the voice switch to switch the content displayed on the LCD ● Switching of working mode Begin Does not meet the grid connection conditions Start-up meet the grid connection conditions Meet the grid connection conditions Standby Running 1.
  • Page 36  The grid voltage is outside the normal range of 170V-265V;  The grid frequency is outside the normal range of 45-55Hz/55-65Hz;  The voltage of the photovoltaic array is outside the allowable working range of the inverter;  The ambient temperature is outside the allowable working range of the inverter.

  • Page 37: Maintenance

    Contents 9.Maintenance Maintenance DANGEROUS Do not open the machine. Users trying to repair the machine by themselves may cause electric shock and fire hazard. 9.1 Maintenance Due to the influence of ambient temperature, humidity, dust and vibration, the internal components of the inverter will age and wear, which will affect the service life of the inverter.
  • Page 38 Table.9-1.troubleshooting Failure solution 1. Disconnect AC side circuit breaker 2. Disconnect DC side circuit breaker LED indicator and LCD 3. Check the input voltage of the PV array (whether it is lower screen do not light up than 300V) and the grid voltage 4.If the above conditions are met, check the circuit breaker 1.

  • Page 39: Quality Assurance

    The warranty period of this product is subject to the contract. ● Conditions 1.AUSTA will offer free repair service or replace with new product for faults during the warranty. 2.The replaced unqualified product will be returned to AUSTA. 3.Customers need to give AUSTA reasonable time to deal with the machine fault.

  • Page 40: Specification

    Contents Specification 10.1 Specification Technical Data AU12K3P-LV AU15K3P-LV DC Input Data Max. DC input power (KW) 22.5 Max. DC input voltage(VDC) 1000 MPPT voltage range(VDC) 180~1000 Max. DC current(A) 36A/36A Recommended working voltage(VDC) MPPT number Max. input strings per MPP tracker AC Output Data Rated output power (KW) Max.
  • Page 41 The warranty period of this product shall be subject to the contract.  condition  AUSTA will repair or replace the faulty products free of charge during the warranty period.  Unqualified products after replacement shall be returned to AUSTA. ...

  • Page 42: Quality Guarantee

    Thank you for taking time to share your feedback. Your comments and suggestions will help us to serve you better. Please send fax or e-mail your feedback, we will respond you within 24 hours. Contact Information NINGBO AUSTA SOLAR TECH CO.,LTD. Tel: +86 574 89137130 Email: marketing@osdasol.com Web:www.austasolar.net Add: 1-1 NO.136 Haichuan Road Jiangbei...
  • Page 44 NINGBO AUSTA SOLAR TECH CO.,LTD. Tel: +86 574 89137130 Email: marketing@osdasol.com Web:www.austasolar.net Add: 1-1 NO.136 Haichuan Road Jiangbei District Ningbo Zhejiang P.R. China...

This manual is also suitable for:

Au12k3p-lvAu15k3p-lv

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