Related Manuals for Stealth ST-INV-S3.0
Summary of Contents for Stealth ST-INV-S3.0
- Page 1 USER MANUAL ST-INV-S3.0 ST-INV-S3.68 ST-INV-S4.0 ST-INV-S5.0 PV grid-connected energy storage inverter VER:1.2 www.stealthenergy.cn...
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Page 2: About This Manual
The contents of the manual and the pictures, logos, symbols, etc. used are owned by Suzhou Stealth Energy Technology Co., Ltd. Persons who are not inside the company are not allowed to publicly reproduce all or part of the content without written authorization. -
Page 3: Change History
User Manual Change History Changes between document issues are cumulative. The latest document issuecontains all the changes made in earlier issues. V1.2 (2023-02-20) ● Updated 9.2 Technical data . PV Input :Max.input current(Ad.c.) and Max.short circuit current(Ad.c.) V1.1 (2021-10-20) This Version is the first official release. -
Page 4: Symbol Usage
User Manual Symbol usage In order to ensure the personal and property safety of users when using the product, and to use the product more efficiently and optimally, the manual provides relevant safety information, which is highlighted by the following symbols. - Page 5 User Manual About this manual 1 Safety instruction 1.1 General salfety instruction 1.2 inverter 1.3 Skills requirements for professional and technical personnel 2 Product description 2.1Grid-connected PV energy storage system 2.2 Poduct introduction 2.2.1 Model description 2.2.2 Apperance 2.2.3 Dimensions and weight 2.2.4LED indicator light 2.3 Function description 2.4 Working mode 3 Unpacking and storage 3.1 Unpacking inspection 3.2 Identification of inverter 3.3 Delivery list 3.4 Storage of inverter 4 Mechanical Installation 4.1 Installtion Precautions 4.2 Choose the Installation site 4.3 Installation tools and parts 4.4 Installation of inverter 5 Electrical connection 5.1 Terminal introduction 5.2 Overview of electrical connection 5.3 Ground connection 5.4 Grid and back-up connection 5.4.1 AC side requirements 5.4.2 Assembling the cable to the AC&Back-up connector 5.4.3 Installing the AC Connector 5.5 PV series connection 5.5.1 PV Input Configuration...
- Page 6 User Manual 5.5.2 Assembling the cable to the PV connector 5.5.3 Installing the PV Connector 5.6 Battery cable connection 5.6.1 Requirements on the battery side 5.6.2 Assembling the cable to the Bat connector 5.6.3 Installing the Bat Connector 5.7 Type-C communication connection 5.8 Meter Connection 5.9 DRED Connection 5.10 BMS Connection 6 Test operation 6.1 Inspection bafore test run 6.2 Test run steps 7 Decommissioning, dismantling, and discarding Inverter 7.1 Decommissioning 7.2 Dismantling 7.3 Discarding 8 Trouble shooting and maintanance 8.1 Trouble shooting 8.1.1 Trouble shooting in APP display 8.2 Daily maintanance 9 Appendix 9.1 Contact 9.2 Technical data 9.3 Quality Assurance...
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Page 7: Safety Instruction
User Manual 1 Safety instruction Inverter machine is designed and tested in strict accordance with relevant international safety standards. As electrical and electronic equipment, relevant safety regulations must be observed during its Installation, commissioning, operation and maintenance. Unreasonable use or misuse may result in: •... - Page 8 User Manual 1.2 inverter The warning signs and descriptions on Inverter are shown in the table below: CE mark. The inverter complies with the requirements of the applicable CE guidelines. TUV certified. RCM remark. Pay attention to danger, do not operate with electricity! After the inverter unit is disconnected from all external power sources, wait at least 5 minutes before touching live devices.
- Page 9 Only the intact and closed box shell can protect the safety of people and property. Do not open the cover of the inverter when the inverter is working or powered on, otherwise Stealth Energy will not be held responsible. WARNING...
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Page 10: Product Description
User Manual 2 Product description 2.1Grid-connected PV energy storage system ST-INV-S3.0,ST-INV-S3.68,ST-INV-S4.0 and ST-INV-S5.0 are single-phase transformerless string photovoltaic energy storage inverters, which are an important part of photovoltaic power generation systems. The inverter converts the DC power generated by the photovoltaic panels into AC power that meets the grid requirements to supply the load, and the rest charges the battery and feeds it into the grid. - Page 11 2.2 Poduct introduction 2.2.1 Model description For example,ST-INV-S5.0 ）： ST - INV – S 5.0 5.0: Power class code S: single phase INV:Pv grid-connected inverter code ST: Stealth 2-1 Power description Model Nominal ouput Rated grid voltage ST-INV-S3.0 3000VA ST-INV-S3.68 3680VA 230Va.c.(single phase)
- Page 12 User Manual Figure 2-2 Apperance of ST-INV-S5.0 2.2.3 Dimensions and weight Figure 2-3 inverter size marking (unit：mm) Model Width W (mm) Height H (mm) Depth D (mm) Net weight(kg) ST-INV-S3.0 ST-INV-S3.68 18.6 ST-INV-S4.0 ST-INV-S5.0 2.2.4 LED indicator light As a human-machine interface, LED indicators are located on the front of the Inverter.
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Page 13: Function Description
Users can view the information of Inverter through the mobile app. For more professional configuration, please contact Stealth after-sales. • Communication interface It can be connected to the WiFi communication data acquisition module to realize... -
Page 14: Working Mode
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 Cloud App. The following are the general operating modes of photovoltaic energy storage systems. Depending on your configuration and layout conditions, PV energy storage systems typically have the following modes of operation: MODE_ Ⅰ... - Page 15 User Manual ③ Without PV power Active Charging time period: The grid supplies the loads and also can charge the battery; (PV=0, Grid → Load + Battery) Active Discharge time period: The battery will power the home loads örstly. If the battery power is not enough ,the remaining power will be taken from the grid. The inverter will enter into the standby state. (PV=0, Battery+Grid → Load ) Battery min SOC can be set:10%-100% Charge battery to min SOC can be set:10%-100% MODE_ Ⅱ Feed-in priority The Feed-in priority mode is suitable for areas with high feed-in subsidies, but has feed-in power limitation. ① When the power of PV is sufficient Active Charging time period: First, PV supply power to the load, then charge the battery to the set capacity, and then sell the power to the grid. If the local grid company limits the grid-connected power of the inverter, the excess energy continues to charge the battery. (PV ＞ Load, PV → Load → Battery → Grid → Battery) Active Discharge time period :PV will power the loads firstly, and surplus power will feed-in to the grid. (PV ＞ Load, PV → Load → Grid ) ② When the power of PV is insufficient Active Charging time period:PV will power the loads firstly, the remaining power will be taken from the grid. The battery will not discharge.
- Page 16 User Manual MODE_ Ⅲ Backup mode The back-up mode is suitable for areas with frequent power outages. Same working logic with“Self-use”mode. This mode will maintain the battery capacity at a relatively high level. (Users' setting) to ensure that the emergency loads can be used when the grid is off. Customers no need to worry about the battery capacity. Battery min SOC can be set: 10%-100%. Charge battery to min SOC can be set: 10%-100%. MODE_ Ⅳ EPS(Off-grid) The EPS(Off-grid) is used when the power grid is off. System will provides emergency power through PV and batteries to supply power to the household loads. (Battery must be installed for this mode) ① When the power of PV is sufficent PV will power the loads firstly, and surplus power will charge to the battery. (PV ＞ Load, PV → Load → Battery) ②...
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Page 17: Unpacking And Storage
• Unpack and check whether the internal equipment is in good condition. If you find any damage, please contact the shipping company or the after-sales service of Stealth directly, and provide photos of the damage, so as to provide the fastest and best service. -
Page 18: Delivery List
User Manual 3.3 Delivery list 3-3 Delivery list a)Unless otherwise specified, inverter diagrams in this document use ST-INV-S5.0 as an example. b)Documentation includes quick user manual, certificate of conformity, packing list and product test report. c)The WiFi communication module may be standard or optional, subject to the actual delivery. -
Page 19: Mechanical Installation
User Manual 4 Mechanical Installation 4.1 Installtion Precautions Before Installing the inverter, make sure the inverter has no electrical connections. Before drilling, make sure to avoid the water and electricity wiring in the wall to avoid danger! ！ CAUTION Improper handling may result in personal injury! The instructions in the manual must be followed when handling and placing the equipment. - Page 20 User Manual • The Installation wall must have fire resistance, and there must be no flammable substances or flammable gas in the Installation space. Flammable materials or gases are Wall material flammability found near the Installation point • The installation height should facilitate the observation of LED indicators. Vertical installation for better heat dissipation •...
- Page 21 User Manual • 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 space during installation to facilitate air convection around inverter and subsequent maintenance. 400mm 400mm •...
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Page 22: Installation Tools And Parts
User Manual 4.3 Installation tools and parts Installation tools include, but are not limited to ,the tools recommended below. When necessary, other aids can be used on site. Type Tools Tape Tape ruler Knive Protective suit meter（≥ 1100V） Anti-static Protective gloves bracelets 880.0 General... -
Page 23: Installation Of Inverter
User Manual 4.4 Installation of inverter After transporting the inverter to the installation site, 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. Self-tapping screws M6 Expansion tube Flat Gasket Locking spacer Installation steps... - Page 24 User Manual 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 25: Electrical Connection
User Manual 5 Electrical connection Personal protective equipment must be worn when working on electrical wiring. There may be high voltage in the unit! Pay attention to safety before making electrical connections. Exposure of PV strings to sunlight will generate dangerous voltages. Make sure all cables are de-energized before making electrical connections, and do not close the AC circuit breaker until electrical connections are complete. - Page 26 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! Terminal Description PV terminal For connecting to PV strings, ST-INV-S3.0 and ST-INV-S5.0 have 2 pairs of PV terminals. BAT terminal Used to connect to the energy storage battery. BMS terminal For connecting to the battery management system. METER terminal Used to access the Meter.
- Page 27 No.of single-phase Power grid impedance Model Remarks parallel machines requirements If the number of ST-INV-S3.0 ≤ 30 ＜ 49mΩ parallel connections ST-INV-S3.68 ≤ 30 ＜ 49mΩ exceeds 8, please contact stoll ST-INV-S4.0...
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Page 28: Ground Connection
User Manual Item Remarks ST-INV-S3.0,ST-INV-S3.68,ST-INV-S4.0 and ST- PV strings INV-S5.0 have 2 pairs of PV terminals. Communication module Type-C interface and WIFI module. Electrical connection protection device (not AC circuit breaker included in the delivery list). Grid Rated voltage is 230Vac. - Page 29 The recommended AC circuit breaker specifications for Inverter are shown in the table below. Model Recommended specification ST-INV-S3.0 ST-INV-S3.68 ST-INV-S4.0 ST-INV-S5.0 Leakage current protector There is an integrated integrated leakage current monitoring unit inside Inverter.
- Page 30 NOTICE Pay attention to the wiring layout of the AC terminals. It is forbidden to connect the phase wires to the PE terminals. Otherwise, the inverter may not operate normally, and the resulting loss has nothing to do with Stealth.
- Page 31 User Manual 5.4.3 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, see 10.1. Step 3 Insert the connector into the corresponding socket on the bottom of the inverter.
- Page 32 For Australia safety country, the neutral cable of On-Grid side and Back-Up side must be connected together, otherwise Back-Up function will not work. Distribution box Back-up Loads Battery Don't connect this terminal for STEALTH Series Australian and New Zealand Back-up Hybrid Inverter grid system!!! Meter RS485...
- Page 33 5.5 PV series connection 9 故障排除与维护 用户手册 5.5.1 PV Input Configuration ST-INV-S3.0,ST-INV-S3.68,ST-INV-S4.0 and ST-INV-S5.0 each input has a pair of 5 电气连接 用户手册 PV terminals. Two PV inputs, each with independent MPPT, can be configured in independent mode or parallel mode.
- Page 34 PV1 inout PV2 input Inside inverter 5-6 Parallel Mode PV input total Open circuit Short-circuit current Model power limit voltage limit limit per input ST-INV-S3.0 4000W 550V/550V 13.8A/13.8A ST-INV-S3.68 4600W 550V/550V 13.8A/13.8A ST-INV-S4.0 5000W 550V/550V 13.8A/13.8A ST-INV-S5.0...
- Page 35 User Manual 9 故障排除与维护 5.5.2 Assembling the cable to the PV connector 用户手册 Assemble the DC cable to the in-line PV connector that mates with the PV 5 电气连接 用户手册 terminals on the side of the unit. The specifications of the DC cables are shown in the following table.
- Page 36 5.5.3 安装 PV 连接器 User Manual 安装步骤： 将位于左下侧的直流开关手动 步骤1 5.5.3 Installing the PV Connector 旋至“OFF” 。 Installation steps: Step 1 :Manually turn the DC switch on the top left to "OFF". Step 2: Check whether the polarity of the connecting cables of the PV strings is correct, and ensure that the open-circuit voltage does not exceed the upper limit of the...
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Page 37: Battery Cable Connection
If the battery box with the inverter has a circuit breaker, no additional configuration is required. The following table lists recommended DC circuit breaker specifications for different inverters. Model Recommended specifications ST-INV-S3.0 ST-INV-S3.68 ST-INV-S4.0 ST-INV-S5.0 Table 5-1 recommended DC circuit breaker specifications... - Page 38 User Manual 9 故障排除与维护 用户手册 5.6.2 Assembling the cable to the Bat connector The connection of the battery is the same as that of the PV, but a different 5 电气连接 用户手册 connector is used to distinguish it from the PV connector. Assemble the DC cables to the in-line Bat connectors that mate with the Bat terminals on the bottom of the 5.6.2 装配线缆至...
- Page 39 5 电气连接 用户手册 User Manual 5.6.3 Installing the Bat Connector 5.6.3 安装 Bat 连接器 Step 1: Disconnect the DC circuit breaker. Step 2: Check whether the polarity of the connecting cable of the battery is correct, 步骤 将直流断路器断开。 and make sure that the open circuit voltage does not exceed the upper limit of the inverter input 400V under any circumstances.
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Page 40: Meter Connection
AC grid. Smart meters must be authorized by Stealth, any third-party or unauthorized meters may not be compatible with the Inverter. Stealth will not be liable if the meter is not available. ST-INV-S3.0,ST-INV-S3.68,ST-INV-S4.0 and ST-INV-S5.0 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 41 User Manual 9 故障排除与维护 用户手册 METER GRID R u n C o m R _ P F NS e t ▲ The default CT line is 3m, and the maximum can be extended to 5m. The smart meter communication cable (RJ45) is attached to the inverter ("connect to smart meter"...
- Page 42 User Manual Smart Meter LED Indication Smart Meter LED指示 Steady Flashing 熄灭 常亮 闪烁 仪表正 仪表未运行 Not operating Oerating normally (绿色) 常运行 (Green) 仪表通 仪表未通讯 (红色) 讯状态 Communicating 功率为正 功率为负 (Red) (红色) communicating 负值指示灯 (红色) ▲ Power is positive Po w e r i s (Red) negative Negative...
- Page 43 User Manual The DRM communication cable (RJ45) is attached to the inverter ("Connect to 9 故障排除 Peripheral DRED Device" cable), a standard RJ45 cable and plug must be used as 用户手册 shown below RJ45电缆和插头，如下所示 DRM1/5 DRM2/6 DRM3/7 DRM4/8 +3.3V_COM DRM0 +3.3V_COM GND_COM DRM1/5 DRM2/6...
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Page 44: Test Operation
User Manual 6 Test operation 6.1 Inspection bafore test run Before turning on the inverter for the first time, you need to do the following inspections. 1. Check whether Inverter is firmly installed and whether the installation position is convenient for operation and maintenance. 2. - Page 45 User Manual 7 Decommissioning, dismantling, and 9 故障排除与维护 用户手册 discarding Inverter 7.1 Decommissioning 8 停运，拆除，废弃一体机 It is not necessary to shut down Inverter under normal circumstances, but when maintenance or repair work is required, Inverter needs to be shut down. 8.1 停运一体机...
- Page 46 User Manual 7.2 Dismantling Refer to "5 Electrical Connections" and "4 Mechanical installation" and follow the reverse steps to remove Inverter. ！ CAUTION Danger of burns and electric shock! Inverter must be disconnected from the power grid for at least 5 minutes before maintenance or repair operations inside the equipment can be performed.
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Page 47: Troubleshooting
2. If it is not within the allowable range, disconnect the PV+, PV-, Bat, and Grid connections, and restart Inverter; 3. If the fault still exists, please contact the Stealth customer service center. 1. Disconnect PV+, PV-, Bat, Grid, and restart Inverter;... - Page 48 3. If the fault occurs repeatedly, please contact the Stealth customer service center. 1. Disconnect PV+, PV-, Bat, Grid, and restart Inverter; Inverter current 2. If the fault still exists, contact the Stealth customer DC component service center. fault 1. Disconnect PV+, PV-, Bat, Grid, and restart Inverter;...
- Page 49 2. Check if there is a nonlinear load connected to the EPS. Remove the load to see Inverter return to normal; 3. If the fault still exists, please contact the Stealth customer service center. 1. Check whether the battery input voltage is lower Battery low than the lower limit.
- Page 50 Inverter does not contain maintenance parts, please do not replace the internal components of Inverter without authorization. If any repair service is required, please contact the Stealth Energy Service Center. Otherwise, Stealth Energy will not bear any warranty and joint liability for the resulting losses.
- Page 51 • Equipment model • Device serial number • Fault code/name • Brief description of the fault phenomenon 9.2 Technical data PV input Model ST-INV-S3.0 ST-INV-S3.68 ST-INV-S4.0 ST-INV-S5.0 Max.input 4000 4600 5000 6000 power(W Absolute Max.
- Page 52 User Manual Grid output/input Grid output Model ST-INV-S3.0 ST-INV-S3.68 ST-INV-S4.0 ST-INV-S5.0 Rated active 3000 3680 4000 4991 power(W) Max.apparent 3000 3680 4000 4991 power(VA) Rated voltage(Va.c.) Rated 50/60 frequency(Hz) Rated current (maximum 13.1Aa.c. 16Aa.c. 17.4Aa.c. 21.7Aa.c. continuous) Output inrush Current (peak/ 30A/500μs...
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Page 53: General Data
Current 37.8A/200μs 45.9A/200μs 49.8A/200μs 60A/200μs (peak/duration) Maximum output 12.6Aa.c. 15.3Aa.c. 16.6Aa.c. 20Aa.c. overcurrent protection General Data Model ST-INV-S3.0 ST-INV-S3.68 ST-INV-S4.0 ST-INV-S5.0 Dimension(W/H/D) 411*505*195 [mm] Weight(kg) 18.6 Installation Wall-mounted Power factor(range) 0.8leading-0.8lagging Operating -25~60 temperature range(℃ ) Storage -25~60 temperature(℃ ) -
Page 54: Quality Assurance
Operating -30~70 temperature(℃ ) 9.3 Quality Assurance Suzhou Stealth Energy Technology Co., Ltd. (hereinafter referred to as Stealth) will repair or replace a new product free of charge for products that fail during the warranty period. Evidence During the warranty period, the company requires customers to present the invoice and date of purchase of the product. - Page 55 • Any incompatible batteries, loads or other equipment connected to the PV energy storage system. Note: Stealth reserves the right to interpret all content in this user manual. In order to ensure IP65, the inverter must be well sealed, please install the inverter...
- Page 56 Suzhou Stealth Energy Technology Co.,Ltd www.stealthenergy.cn TEL: +86 0512-66720026 Mail: Sales@stealthenergy.cn E-mail: Sales@stealthenergy.cn Addr:8F, NO.198, Jinfeng Road, Huqiu District, Suzhou,Jiangsu Province,China...