Austa AU Series User Manual
Grid-tied pv inverter
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Summary of Contents for Austa AU Series
- Page 1 AU Series Grid-tied PV Inverter user manual AU 80~136K3P NINGBO AUSTA SOLAR TECH CO.,LTD.
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Page 3: Table Of Contents
Thank you for choosing AUSTA on-grid PV inverter. In order to ensure your safety and proper use, please Contents read the manual in details before using. Thanks for Contents your cooperation! 1.Overview ..........................1 1.1 Use of this manual ....................1 1.2 Symbols ........................ -
Page 4: Overview
Contents 1.Overview Overview 1.1 Use of this manual This manual mainly introduces inverter product information, installation, operation and maintenance guidelines, etc. It is suitable for professional technicians who install, operate and maintain inverters, as well as end users who need to view inverter information. Before installing this product, please read this manual carefully, and put this manual in a reasonable place to ensure that the relevant installation and operation personnel can easily access it. -
Page 5: Nameplate
1.3 Nameplate Take AU100K3P for example... -
Page 6: Description
2. Description Contents Description 2.1. Brief Introductions On-grid PV power generation system usually is composed of solar panels, junction box, inverter, ammeter and power grid. The core of the system is PV grid-connected inverter. The sunshine irradiates on the surface of the solar panels, solar panels output DC, converted by inverter, then output AC of the same frequency and phase with the grid, and then feed into the grid. -
Page 7: General Introduction
Active and passive anti-islanding protection technology. Comprehensive protection, higher reliability. IP65 Outdoor design, suitable for harsh environmen . RS485 communication. Optional GPRS/WIFI communication function. 2.2 General introduction Appearance and interface Fig 2-2 Appearance Figure 2-2 shows the product appearance. The picture is for reference only. The external interface is located at the bottom of the product, including PV+ input port, PV - input port,WIFI/GPRS/RS485communication port, AC output port, and DC switch. -
Page 8: Inverter Size
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 RS485 communication port... -
Page 9: Installation
3. Installation Contents Installation Please carefully read below installation guide for AU80-110K3P. 3.1 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 3-1 Installation procedure... -
Page 10: Installation Preparation
3.2 Installation Preparation Check whether there is damage during transport Although we have carefully tested and inspected the inverter before shipping, there might be damage during transport. So please check them before installation. If there is any damage, please contact the shipping company or directly contact us. -
Page 11: Choose Installation Location
3.3 Choose installation location WARNING Please read carefully and follow the following basic installation requirements. Failure to follow these warnings will directly lead to serious personal injury or even life-threatening. WARNING Poor ventilation in the installation environment will affect system performance. It is necessary to ensure good ventilation during the operation of the equipment. - Page 12 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. 7. The inverter needs to be installed uprightly, and cannot be placed horizontally or upside down, or tilted. 8.
- 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.
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Page 14: Mechanical Installation
3.4 Mechanical Installation 3.4.1 setting tool Wrench Impact electric drill Phillips screwdriver Hexagon socket wrench Megohmmeter and multimeter 3.4.2 Move inverter Before installation, take the inverter out of the packing box and transport it to the selected installation site. - Page 15 Fig 3-2 Drawing of fixed plate dimensions If the chassis is to be installed on a concrete wall, drill holes on the wall based on the specifications of the fixing plate, secure the fixing plate to the wall using expansion bolts, and hang the chassis on the fixing plate.
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Page 16: Electrical Connection
After hanging the inverter on the fixing plate, use screws to fix the inverter on the fixing plate. Note: In the process of installing the inverter, please pay attention to keep the balance, so as not to hit the wall or other obstacles and damage the machine shell. - Page 17 the grid limits that meet the grid-connection conditions. At the same time, permission should be obtained from the local power department before installing grid-connected PV inverters. NOTE AU80/90/100/110K3P: Grid line voltage: 310V AC-480VAC, grid frequency:45-55HZ/55-65HZ. AU100/125/136KT3P-HV: Grid line voltage: 422V AC-550VAC, grid frequency:45-55HZ/55-65HZ. ...
- Page 18 3.5.3 Inverter wiring NOTE If the PID lifting function is added to the AC side, then: The neutral point of the power grid on the inverter side cannot be grounded. The Ac cable must be 1000V or 600V ; Solution "3+1" is the best choice for ac PDC SPD test. "3" requires that the U is not less than 385Vac.
- Page 19 NOTE If aluminum cables are used, copper-aluminum adapter terminals are required to avoid direct contact between copper bars and aluminum cables (copper-aluminum adapters are configured according to the selected cables). Remove the 4 screws on the inverter junction box, then remove the junction box cover and pass the cables through the nut, sheath and AC terminal cover.
- Page 20 DANGEROUS High voltage! Electrical shock! Pay attention to safety before electrical connection. Exposure of PV arrays to sunlight will generate dangerous voltage. WARNING Before connecting the PV arrays to the inverter, ensure that the PV arrays is well insulated to the ground. NOTE The following precautions must be met, otherwise the damage caused by the inverter will not be covered by the warranty.
- Page 21 PV array 1 PV array 2 The inside of the inverter PV array 3 NOTE In order to make full use of dc input power, PV arrays with the same input MPPT should have the same structure, including: the same model; The same number of panels; The same inclination Angle;...
- Page 22 DC cable connection steps DANGEROUS High voltage! Electrical shock! There may be high voltage in the inverter! Before electrical operation, make sure that all cables are not live. Before the electrical connection of the inverter is completed, the AC circuit breaker switch shall not be installed.
- Page 23 a.Male terminal b.Female terminal c.Male housing body d.Female housing body 6. Verify that the polarity of the PV arrays cables is correct. NOTE If the DC input polarity is reversed, the inverter will not work properly. 7. Off DC switch. 8.
- Page 24 NOTE Before connecting the DC terminal to the inverter, check the positive and negative polarity of the PV arrays and insert the terminal into the input terminal at the bottom of the inverter. In the same MPPT, it is not allowed to reverse a single PV array. Otherwise, the system or inverter will fail permanently.
- Page 25 points of the metal frame of the PV arrays need to be connected to the equipotential line (depending on site conditions) to achieve equipotential connection . Grounding system PV array 1 PV array 2 PV array n Frame equipotential line AC ground AC BREAKER Inverter...
- Page 26 WARNING The grounding connection of the secondary protection grounding terminal cannot replace that of the PE terminal in the AC cable. Ensure that both terminals are reliably grounded. Otherwise, manufacturers and suppliers does not assume any responsibility for possible consequences.
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Page 27: Monitoring
Figure 4-1 RS485 (standard MODBUS protocol) communication system mode Smart device Figure 4-2 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 28 ● RS485 connection 1. Connect the RS485 harness according to the identification ● WIFI/GPRS installation...
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Page 29: Austa Pv Wizard App -Solarlnfo
4.2 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 30: Trial Run
Contents 5. Trial run Trial run 5.1 Inspection before trial run Trial run is an important step for PV system installation. Proper trial run can prevent fire and other accidents. Correctly connect the PV arrays, inverter and ac power grid according to the installation process described above, and check the content before starting the inverter. -
Page 31: Shut Down
Dc switch to ON position; Close the AC side circuit breaker; When the conditions required for normal operation of the machine are met, the inverter will automatically start and connect to the grid for power generation; Grid-connected PV inverter does not need manual control after normal operation, and has automatic shut down and start function after failure. -
Page 32: Shut Down & Dismantle
hut down 6. Shut down & Dismantle Contents & Dismantle 6.1 Stop the inverter It is not necessary to shut down the inverter manually under normal circumstances, but it is necessary to shut down the inverter for maintenance or operation. To disconnect the inverter from the AC/DC power supply, follow the following steps. -
Page 33: Operating
7.Operating Contents Operating 7.1 Working Mode The working modes of the inverter include-start mode, run mode, and standby mode. In each working mode, the LCD displays corresponding information. 7.1.1 Control panel with LCD display The panel of the TLC 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 7-1. - Page 34 interactive operation of the man-machine interface, 3 LED lights are set on the panel, as shown in Figure 7-2. LED indicator Fig 7-2 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...
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Page 35: Startup Mode
7.2 Startup mode The start mode means that the light conditions meet the DC start conditions of the inverter, but the grid has not yet been connected to power generation. In this mode, the inverter information is displayed in sequence. After the display is completed, the inverter meets the grid-connected conditions and switches from the startup mode to the running mode, otherwise, it switches to the standby mode. - Page 36 current two seconds.The LCD displays the default information. After 30 seconds, the LCD displays the default information, as shown in Figure 7-4. Today's power generation Total power generation 30.5kwh 40.5kwh Fig 7-4 Default interface of running mode In running mode, the screen display content is shown in Table5-3 (take AU-60KTLC as an example) B phase voltage: 240V IP address B phase current 3: 0.0A...
- Page 37 NOTE If the DC side is powered off, it will be a new day for the inverter when it is powered on again, and the total energy generated on that day will be recalculated. ● Standby mode The DC start and the grid connection condition is not met is the standby mode. In the standby mode, the inverter continuously detects whether the grid-connected power generation conditions are met.
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Page 38: Power Generation Process
NOTE The above various LCD display interfaces are switched by tapping the position of the voice-activated switch logo. 7.3 Power generation process The grid-connected power generation process of AU100K3P series photovoltaic grid-connected inverters is automatic, and the grid-connected process is briefly described (take AU 100K3P as an example) 1. -
Page 39: Maintenance
Contents 8.Maintenance Maintenance DANGEROUS Do not open the machine. Users trying to repair the machine by themselves may cause electric shock and fire hazard. 8.1 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 40 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 arrays (whether it is lower screen do not light up than 250V). 4.If the above conditions are met, check the circuit breaker. 1.
- Page 41 whether the hook-up installation is correct, and whether the air duct is unblocked. 5. Whether the output power exceeds the rated value. 1. Disconnect AC side circuit breaker. 2. Disconnect DC side circuit breaker. Grounding fault 3.Check whether the ground resistance of each group of PV arrays is greater than 2MΩ.
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Page 42: Specification
Contents 9.Specification Specification 9.1 Specification AU125K3P Technical Data AU80K3P AU90K3P AU100K3P AU110K3P DC Input Data 187.5 Max. DC input power (KW) Max. DC input voltage(VDC) 1100 Max. DC input current(A) 30A*8 30A*9 30A*10 30A*10 30A*10 MPPT voltage range(VDC) 200~1000 Recommended working voltage(VDC) MPPT number Max. - Page 43 Mechanical Data Size (width x height x depth) 1050mm×620mm×333mm Weight 89kg Protection class IP66（outdoor） Display & Communication Communication interface RS485/WIFI(optional)/GPRS(optional) Display LED/LCD(optional) Conforming standards Standards for grid connection NB/T32004-2018; IEC61727 Safety standard NB/T32004-2018; NIEC62109-1/2 IEC61000-6-2/4 Technical Data AU100K3P-HV AU125K3P-HV AU136K3P-HV DC Input Data Max.
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Page 44: Quality Guarantee
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 45: Feedback Form
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 46 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...
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