Related Manuals for Stealth ST-INV-S3.0
Summary of Contents for Stealth ST-INV-S3.0
- Page 1 Suzhou Stealth Energy Technology Co., Ltd. Installation Manual Grid-Connected Photovoltaic Inverter (ST-INV-S3.0) (ST-INV-S5.0) English-AU ST Series Version: 2.0...
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Page 2: Table Of Contents
Suzhou Stealth Energy Technology Co., Ltd. Contents 1 About This Manual ....................4 1.1 Applicable Model ....................4 1.2 Target Audience ...................... 4 1.3 Symbol Definition....................4 2 Safety Precaution ....................5 2.1 General Safety ......................5 2.2 PV String Safety ..................... 5 2.3 Inverter Safety ....................... - Page 3 Suzhou Stealth Energy Technology Co., Ltd. 6.2 System Wiring Diagram ..................26 6.3 Overview of Electrical Connection ................. 28 6.4 Terminal Introduction ..................... 30 6.5 Connecting the PE Cable ..................31 6.6 Connecting the PV Input ..................32 6.7 Connecting the Battery Cable ................37 6.8 Connecting the AC Cable (grid and backup port) ..........
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Page 4: About This Manual
Suzhou Stealth Energy Technology Co., Ltd. About This Manual This manual describes the product information, installation, electrical connection, commissioning, troubleshooting, and maintenance. Read through this manual before installing and operating the product. All the installers and users have to be familiar with the product features, functions, and safety precautions. -
Page 5: Safety Precaution
Suzhou Stealth Energy Technology Co., Ltd. Safety Precaution Please strictly follow these safety instructions in the installation manual during the operation. NOTICE The inverters are designed and tested strictly in compliance with related safety rules. Read and follow all the safety instructions and cautions before any operations. Improper operation might cause personal injury or property damage as the inverters are electrical equipment. -
Page 6: Inverter Safety
Suzhou Stealth Energy Technology Co., Ltd. 2.3 Inverter Safety WARNING • The voltage and frequency at the connection point meet the inverter grid connection requirements. • Additional protective devices like circuit breakers or fuses are recommended on the DC/AC side. Specification of the protective device should be at least 1.25 times the maximum current. -
Page 7: Battery Safety
Suzhou Stealth Energy Technology Co., Ltd. 2.4 Battery Safety WARNING • The battery used with the inverter shall be approved by the inverter manufacturer. • Before installations, read through the corresponding battery's installation manual to learn about the product and the precautions. Strictly follow its requirements. -
Page 8: Product Introduction
Suzhou Stealth Energy Technology Co., Ltd. 3 Product Introduction 3.1 Overview Function: Inverters control and optimize the power in PV systems through an integrated energy management system. The power generated in the PV system can be used, stored in the battery, output to the utility grid, etc. -
Page 9: Appearance
Suzhou Stealth Energy Technology Co., Ltd. 3.2 Appearance The following illustrations are for reference only, please refer to the actual objects. 3.3 Dimensions and Weight Model Width [mm] Height [mm] Depth [mm] Net weight [kg] ST-INV-S3.0 18.6 ST-INV-S5.0 18.6... -
Page 10: Nameplate
Suzhou Stealth Energy Technology Co., Ltd. 3.4 Nameplate The nameplate is for reference only Trademark, product type, and product model Technical parameters Serial number Safety symbols and marks Country of manufacture. -
Page 11: Application Scenarios
Suzhou Stealth Energy Technology Co., Ltd. 3.5 Application Scenarios WARNING • The PV system is not suitable to connect equipment that relies on a stable power supply, such as medical equipment to sustain life. Ensure that no personal injury is occurred when the system is disconnected. -
Page 12: Working Modes
The above introduction describes the general working of a photovoltaic system. The operation mode can be adjusted according to the system layout on the Stealth “PV Pro” App. The following are the general operating modes of photovoltaic energy storage systems. - Page 13 Suzhou Stealth Energy Technology Co., Ltd. PV+BAT will power the loads together. If the power is still not enough, the remaining power will be taken from the grid. (PV ＜ Load, PV + Battery + Grid → Load) ③ Without PV power The grid supplies the loads and also can charge the battery;...
- Page 14 Suzhou Stealth Energy Technology Co., Ltd. (PV ＜ Load, PV + Battery + Grid → Load) ③ Without PV power The grid will power the home loads and also charge the battery; (PV=0, Grid → Load +Battery) The battery will power the home loads firstly. If the battery power is not enough, the remaining power will be taken from the grid.
- Page 15 Suzhou Stealth Energy Technology Co., Ltd. The EPS mode is used when the power grid is off. System will provide emergency power through PV and batteries to supply power to the household loads. (Battery must be installed for this mode) ①...
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Page 16: Features
Suzhou Stealth Energy Technology Co., Ltd. 3.7 Features 3.7.1 Basic information Integrated Inverter Rated AC Integrated Grid Model Series Number of Output Isolator Settings Number Type Phase (VA) Isolator EESS Access Registered Method ST-INV- Monitoring 3000 S3.0 ST-INV- Monitoring 4991 S5.0... -
Page 17: Check And Storage
Suzhou Stealth Energy Technology Co., Ltd. Check and Storage 4.1 Check Before Receiving Check the following items before receiving the product. Check the outer packing box for damage, such as holes, cracks, deformation, and other signs of equipment damage. Do not unpack the contents from the box and contact the supplier as soon as possible if any damage is found. -
Page 18: Storage
Suzhou Stealth Energy Technology Co., Ltd. WARNING Connect the DC cables with the included terminals. The manufacturer shall not be liable for the damage if other terminals are used. 4.3 Storage If the equipment is not to be installed or used immediately, please ensure that the storage environment meets the following requirements: Do not unpack the outer package or throw the desiccant away. -
Page 19: Installation Location
Suzhou Stealth Energy Technology Co., Ltd. 5.2 Installation Location • The inverter is IP65 rating and can be used for indoor or outdoor environment. • Do not install the equipment in a place near flammable, explosive, or corrosive materials. • The Installation wall must have the ability to support at least 4 times the weight of the inverter. - Page 20 Suzhou Stealth Energy Technology Co., Ltd. • The installation height should facilitate the observation of LED indicators. Vertical installation for better heat dissipation • Do not install tilted, horizontally or upside down. Forward lean Backward lean Flat Inverted NOTICE Inverter cannot be Installed horizontally, otherwise the equipment will be damaged.
- Page 21 Suzhou Stealth Energy Technology Co., Ltd. • Avoid direct sunlight, rain and snow, and it is best to choose a sheltered installation site, which can prolong the service life of the equipment. • Reserve enough clearance around the inverter to ensure sufficient space for heat dissipation.
- Page 22 Suzhou Stealth Energy Technology Co., Ltd. NOTICE It is very important to ensure smooth ventilation and heat dissipation of inverter. Please install the inverter in a ventilated environment. Do not install the inverter in a closed box, otherwise it will affect the power generation of inverter.
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Page 23: Installation Tools
Suzhou Stealth Energy Technology Co., Ltd. 5.3 Installation Tools The following tools are recommended when installing the equipment. Use other auxiliary tools on site if necessary. -
Page 24: Installing The Inverter
Suzhou Stealth Energy Technology Co., Ltd. 5.4 Installing the Inverter After transporting the inverter to the installation location, install the hanging plate on the wall with the expansion bolt assembly, and then hang the inverter on the hanging plate. The expansion bolt assembly is shown in the figure below. - Page 25 Suzhou Stealth Energy Technology Co., Ltd. 2. Drill holes (about 70mm in depth) and install the hanging plate. 3. Lift the inverter and hang the back mounting ear holes on the mounting plate. Use 2 M5x12 screws to fasten the inverter to the mounting plate with a torque of 1.5N·m.
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Page 26: Electrical Connection
Suzhou Stealth Energy Technology Co., Ltd. 6 Electrical connection 6.1 Safety Instructions DANGER There may be high voltage in the unit. Operators must wear proper personal protective equipment during electrical connections. Pay attention to safety before making electrical connections. Exposure of PV strings to sunlight will generate dangerous voltages. - Page 27 Suzhou Stealth Energy Technology Co., Ltd. NOTICE N and PE cables are connected together in the Main Panel for wiring. The following diagram is applicable to areas in Australia, New Zealand, South Africa, etc. NOTICE N and PE cables are separately wired in the Main Panel.
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Page 28: Overview Of Electrical Connection
Recommended specifications: rated voltage ≥ d.c. 600V, rated current breaker ≥ d.c. 40A Recommended a.c. circuit breaker specifications: ST-INV-S3.0: rated voltage ≥ a.c. 230V, rated current ≥ a.c. 40A, AC Breaker external RCD Type A 300 mA (grid port) ST-INV-S5.0: rated voltage ≥ a.c. 230V, rated current ≥ a.c. 63A, external RCD Type A 300 mA Depend on the actual home used load, recommended general loads. - Page 29 Recommended need 24-hour power supply or other important loads. (e.g. lamp, fan, refrigerator) Recommended breaker specifications: AC Breaker ST-INV-S3.0: rated voltage ≥ a.c. 230V, rated current ≥ a.c. 25A, (backup port) external RCD Type A 30 mA ST-INV-S5.0: rated voltage ≥ a.c. 230V, rated current ≥ a.c. 32A,...
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Page 30: Terminal Introduction
Suzhou Stealth Energy Technology Co., Ltd. 6.4 Terminal Introduction The external wiring terminals are located on the side of the inverter, as shown in the figure below. The picture is for reference only, please refer to the actual product. PV input terminal (PV1/PV2) -
Page 31: Connecting The Pe Cable
Suzhou Stealth Energy Technology Co., Ltd. 6.5 Connecting the PE Cable WARNING • The PE cable connected to the enclosure of the inverter cannot replace the PE cable connected to the AC output port. Make sure that both of the two PE cables are securely connected. -
Page 32: Connecting The Pv Input
Suzhou Stealth Energy Technology Co., Ltd. 6.6 Connecting the PV Input DANGER • Do not connect one PV string to more than one inverter at the same time. Otherwise, it may cause damage to the inverter. • Confirm the following information before connecting the PV string to the inverter. Otherwise, the inverter may be damaged permanently or even cause fire and cause personal and property losses. - Page 33 Suzhou Stealth Energy Technology Co., Ltd. 6.6.1 PV Input Configuration ST-INV-S3.0 and ST-INV-S5.0 each input has a pair of PV terminals. Two PV inputs, each with independent MPPT, can be configured in independent mode or parallel mode. • independent mode...
- Page 34 Suzhou Stealth Energy Technology Co., Ltd. 6.6.2 Assembling the cable to the PV connector Assemble the DC cable to the in-line PV connector that mates with the PV terminals on the side of the unit. The specifications of the DC cables are shown in the following table.
- Page 35 Suzhou Stealth Energy Technology Co., Ltd. NOTICE If the PV input polarity is reversed, the inverter will not operate normally. If the PV connector is not properly assembled, it may cause arcing or overheating in the connector, which will not be covered by the warranty.
- Page 36 Suzhou Stealth Energy Technology Co., Ltd. NOTICE Before connecting the PV connector to the inverter, check the positive and negative polarities of the solar panel, and then insert the PV connector into the corresponding PV terminal after confirmation. Step 2: Insert the PV connector into the corresponding PV terminal until you hear a "click".
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Page 37: Connecting The Battery Cable
Suzhou Stealth Energy Technology Co., Ltd. 6.7 Connecting the Battery Cable DANGER • The battery used with the inverter shall be approved by the inverter manufacturer. • A short circuit in the battery may cause personal injury. The instantaneous high current caused by a short circuit can release a large amount of energy and may cause a fire. - Page 38 Suzhou Stealth Energy Technology Co., Ltd. 6.7.1 Assembling the cable to the Bat connector Assemble the DC cables to the in-line Bat connectors that mate with the Bat terminals on the bottom of the inverter. Model ST-INV-S3.0 ST-INV-S5.0 Battery cable...
- Page 39 Suzhou Stealth Energy Technology Co., Ltd. 6.7.2 Installing the Bat Connector Step 1: Disconnect the battery circuit breaker. Step 2: Check whether the polarity of the connecting cable of the battery is correct, and make sure that the open circuit voltage does not exceed the upper limit of the inverter input d.c. 400V under any circumstances.
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Page 40: Connecting The Ac Cable (Grid And Backup Port)
Suzhou Stealth Energy Technology Co., Ltd. 6.8 Connecting the AC Cable (grid and backup port) WARNING • Connect the AC cables to the corresponding terminals such as “L”, “N”, and PE correctly. Otherwise it will cause damage to the inverter. - Page 41 Suzhou Stealth Energy Technology Co., Ltd. 6.8.1 Assembling the cable to AC connector Model ST-INV-S3.0 ST-INV-S5.0 Grid cable Conductor cross-sectional area 4-6 mm / 12-10 AWG 6-10 mm / 8 AWG Backup cable Conductor cross-sectional area 4-6 mm / 12-10 AWG...
- Page 42 Suzhou Stealth Energy Technology Co., Ltd.
- Page 43 Suzhou Stealth Energy Technology Co., Ltd. 6.8.2 Installing the AC Connector Step 1: Disconnect the AC side circuit breaker and prevent it from being accidentally reconnected. Step 2: Measure the voltage and frequency of the grid-connected access point to ensure that it meets the grid-connected specifications of the inverter.
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Page 44: Connecting The Communication Cable
Suzhou Stealth Energy Technology Co., Ltd. 6.9 Connecting the Communication Cable NOTICE • Make sure that the communication device is connected to the right COM port. Route the communication cable far away from any interference source or power cable to prevent the signal from being influenced. - Page 45 Suzhou Stealth Energy Technology Co., Ltd. 6.9.2 Connecting Meter Cable NOTICE Smart meters must be authorized; any third-party or unauthorized meters may not be compatible with the Inverter. The ST series adopts Acrel's smart meter with CT, which is used to detect the grid voltage, current direction and magnitude, and further indicate the operation status of the grid.
- Page 46 Suzhou Stealth Energy Technology Co., Ltd. Meter Pin definition: RJ45 Pin definition:...
- Page 47 Suzhou Stealth Energy Technology Co., Ltd. 6.9.3 Connecting DRED device for DRM control NOTICE The unit can only support DRM0 Mode Requirement DRM 0 Operate the disconnection device The DRM communication cable (RJ45) is attached to the inverter ("Connect to Peripheral DRED Device"...
- Page 48 Suzhou Stealth Energy Technology Co., Ltd. 6.8.3 Installing the Wi-Fi Module Plug a Wi-Fi module into the inverter to establish a connection between the inverter and the smartphone or web pages, which allows set inverter parameters, check running information and fault information, and observe system status in time.
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Page 49: System Commissioning
Suzhou Stealth Energy Technology Co., Ltd. 7 System Commissioning DANGER Wear personal protective equipment and use dedicated insulated tools to avoid electric shocks or short circuits. 7.1 Check Before Power On Check Item The product is firmly installed at a clean place that is well-ventilated and easy-to operate. -
Page 50: System Status
Suzhou Stealth Energy Technology Co., Ltd. 7.4 System Status Parts Description Waiting stage after the inverter is powered on. Waiting • When the conditions are met, it enters the self-check mode. mode • If there is a fault, the inverter enters the fault mode. -
Page 51: Led Indicator Light
Suzhou Stealth Energy Technology Co., Ltd. 7.5 LED Indicator Light The LED indicators are located on the front of the inverter. By observing the flashing color and speed of the indicator light, the user can obtain the current working status of the inverter. Please refer to table for the description of indicator status. -
Page 52: Setting Up Remote Monitoring
Suzhou Stealth Energy Technology Co., Ltd. 7.6 Setting Up Remote Monitoring NOTICE Please set the inverter parameters first via “PV Pro” App to ensure its normal operation. If your app has connected the inverter, the device performance can be monitored. -
Page 53: Maintenance
Suzhou Stealth Energy Technology Co., Ltd. 8 Maintenance DANGER • Shutdown the inverter system before maintenance. Otherwise, the inverter may be damaged or electric shocks may occur. • Delayed discharge. Wait until the components are discharged after power off. 8.1 Removing the Inverter WARNING •... - Page 54 Suzhou Stealth Energy Technology Co., Ltd. No. Fault Cause Solutions Utility grid power The alarm is automatically cleared after the fails. grid power supply is restored. Utility Loss The AC cable is Check whether the AC cable is connected and disconnected, or the the AC breaker is on.
- Page 55 Suzhou Stealth Energy Technology Co., Ltd. No. Fault Cause Solutions If the problem occurs occasionally, the utility grid may be abnormal temporarily. The inverter will recover automatically after detecting that the utility grid is normal. If the problem occurs frequently, check...
- Page 56 Suzhou Stealth Energy Technology Co., Ltd. No. Fault Cause Solutions If the problem occurs occasionally, the utility grid may be abnormal temporarily. The inverter will recover automatically after detecting that the utility grid is normal. If the problem occurs frequently, check Utility grid exception.
- Page 57 Suzhou Stealth Energy Technology Co., Ltd. No. Fault Cause Solutions If the problem occurs occasionally, the utility grid may be abnormal temporarily. Utility grid The inverter will recover automatically after detecting that the utility grid is normal. exception. The If the problem occurs frequently, check...
- Page 58 Suzhou Stealth Energy Technology Co., Ltd. No. Fault Cause Solutions Abnormal GFCI If the problem occurs occasionally, it may be 30mA caused by a cable exception. The inverter will Abnormal GFCI The input insulation recover automatically after the problem is...
- Page 59 Suzhou Stealth Energy Technology Co., Ltd. No. Fault Cause Solutions Frame format error Parity checking error Can bus offline Disconnect the AC output switch and DC input Hardware CRC Internal Comm switch, then connect them 5 minutes later. error Loss...
- Page 60 Suzhou Stealth Energy Technology Co., Ltd. No. Fault Cause Solutions Disconnect the AC output switch and DC input AFCI Self-test AFCI detection is switch, then connect them 5 minutes later. Contact the dealer or the after-sales service if Fault abnormal.
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Page 61: Routine Maintenance
Suzhou Stealth Energy Technology Co., Ltd. 8.4 Routine Maintenance WARNING • Make sure that the inverter is powered off. • Wear proper PPE before any operations. Maintaining Item Maintaining Method Maintaining Period Check the heat sink, air intake, and air... -
Page 62: Appendix
9 Appendix 9.1 Technical Data Model ST-INV-S3.0 ST-INV-S5.0 PV input: Maximum input voltage d.c. 550 V d.c. 550 V Minimum operating voltage d.c. 70 V d.c. 70 V Start-up input voltage d.c. 100 V d.c. 100 V Rated input voltage d.c. - Page 63 Maximum continuous current a.c. 25 A a.c. 40 A Inrush current (peak and duration) a.c. 45 A, 500 μs a.c. 60 A, 500 μs Rated apparent power 5750 VA 9200 VA Maximum apparent power 5750 VA 9200 VA Power factor range 0.8leading…0.8lagging 0.8leading…0.8lagging Backup output:...
- Page 64 AC surge protection Supported Over load protection Supported Communications: Interface Meter, BMS, Wi-Fi, DRM Meter protocol RS485 BMS protocol Display LED indicators; WLAN+App Demand response mode DRM 0 General Data: Protective class Overvoltage category DC II, AC III Ingress protection IP65 Operating temperature range -25…+60 °C...
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Page 65: Grid Code
9.2 Grid Code Region Country ST-INV-S3.0 ST-INV-S5.0 VDE-AR-N 4105 Germany CEI 0-21 Italy Australia A-AS4777 Australia Australia B-AS4777 Australia Australia C-AS4777 Australia New Zealand-NZS4777 New Zealand United Kingdom ... -
Page 66: Quality Assurance
• The fault or damage is caused by installation, repairs, modification, or disassembly performed by a service provider or personnel not from STEALTH ENERGY. • The fault or damage is caused by the use of non-standard or non-STEALTH ENERGY components or software.