Hopewind hopeSun Series User Manual
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Summary of Contents for Hopewind hopeSun Series
- Page 2 Technology Co., Ltd. (hereinafter referred to as “Hopewind”). Hope our products and this manual can meet your demands. Any suggestion for improvement shall be appreciated. Shenzhen Hopewind Technology Co., Ltd. reserves the copyright of this manual, and it shall be subject to change without any further notice.
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Page 3: About This Manual
For Readers This manual is helpful for technicians who install, debug, operate and maintain string inverters of Hopewind. Please read this manual carefully before operates the product. Readers are required to know the basic knowledge about electric components, wiring, signs and mechanical drawings. -
Page 4: Table Of Contents
Content About this manual........................... 5 1 Safety Precautions........................1 1.1 Transportation.............................1 1.2 Storage..............................1 1.3 Installation............................2 1.4 Operation.............................2 1.5 Maintenance............................3 2 Product Description........................5 2.1 Product Description........................... 5 2.1.1 Schematic Diagram......................... 5 2.1.2 Operation Mode..........................6 2.2 System Configuration and Application....................6 2.2.1 Application Description........................6 2.2.2 Supported Grid Form........................ -
Page 5: Safety Precautions
Safety Precautions This chapter describes the safety precautions to be observed during the installation, operation and maintenance of inverter. Please carefully read the safety precautions before the installation, maintenance and other operations of inverter. All personals must strictly observe safety precautions during the operation. -
Page 6: Installation
User Manual of String Inverter half a year. Don't store the inverter without package. 1.3 Installation The DC switch and breaker of the inverter must be cut off and the inverter shell must be reliably grounded before any operation is conducted inside the inverter. The inverter must be grounded canonically and the dimension of grounding conductor must conform to the requirements of security specifications to ensure the personal safety. -
Page 7: Maintenance
1 Safety Precautions 1.5 Maintenance Please cut off the AC side breaker first, then cut off the DC switch, and wait for at least 5 minutes before performing maintenance. Please prevent irrelevant personals from entering maintenance scene during the maintenance. Please maintain the inverter under the condition of understanding this manual and being equipped with proper tools and test devices. -
Page 8: Product Description
Product Description 2.1 Product Description hopeSun series three-phase string on-grid inverter is independent developed by Hopewind. it's main function is converting DC current generated by PV arrays into AC current and feeding it into the grid. hopeSun 8KTL/10KTL/12KTL are 2-input string inverters. hopeSun 15KTL/17KTL are 3-input string inverters. -
Page 9: Operation Mode
User Manual of String Inverter 2.1.2 Operation Mode hopeSunHV string inverter includes three operation modes: standby mode, operation mode and shutdown mode. The three mode switching conditions are shown in Figure 2-5. Figure 2-5 hopeSun string inverter operation mode Operation Mode Description 1) Standby mode mainly refers to the external environment doesn't meet the operation condition, such as insufficient sunshine or DC switch is turned off. -
Page 10: Supported Grid Form
2 Product Description Figure 2-7 Design scheme of the l distributed PV power plant 2.2.2 Supported Grid Form hopeSun 8KTL~hopeSun 33KTL support the TN-S, TN-C, TN-C-S,TT IT systems in Figure 2-8. Figure 2-8 Schematic diagram of IT system 2.3 Naming Rules Figure 2-9 Naming rules... -
Page 11: Nameplate Label
User Manual of String Inverter 2.4 Nameplate label (Note: The data is for reference only; please refer to the physical or technical agreement of the corresponding product for actual parameters) -
Page 12: Machine Configuration
2 Product Description 2.5 Machine Configuration This section describes the internal components, back device, and bottom interface of the string inverter. Bottom structure may differ from other models, the 30KTL is taken as an example here. There are components on the board that are sensitive to static electricity. Anti-static measures must be taken before touching the board. - Page 13 User Manual of String Inverter lights on Remarks: Slow flash is defined as: 1 second lights up, 2 seconds lights off. Flash is defined as: 0.5 seconds lights up, 0.5 seconds lights off. Label Component Name Hanging Bracket DC Switch Figure 2-11 Back view of the inverter Label Component Name...
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Page 14: Signs And Labels
2 Product Description 2.6 Signs and labels On the outer packaging of the product, there are some labels to guide the user to transport and store the product. The meanings indicated by the labels are as follows: Handle with care and Do not stack or avoid damage caused by backlog... -
Page 15: Technical Data
User Manual of String Inverter 2.8 Technical Data hopeSun hopeSun hopeSun hopeSun hopeSun Model 8KTL 10KTL 12KTL 15KTL 17KTL Maximum DC voltage 1100V Starting Voltage 200V MPPT Voltage Range 200V~1000V MPPT Range Full Load 370V~850V 450V~850V Max. Input Current of Each 20A / 20A 26A / 20A parameters... - Page 16 2 Product Description hopeSun hopeSun hopeSun hopeSun hopeSun Model 20KTL 22KTL 25KTL 30KTL 33KTL Maximum DC voltage 1100V Starting Voltage 200V MPPT Voltage Range 200V~1000V MPPT Range Full Load 425V~850V Max. Input Current of Each parameters 30A / 30A 40A / 40A MPPT Max.
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Page 17: Mechanical Parameters
Note: The model shown in the picture below is 30KTL. The inverter sizes of other models are similar, only the sizes of AC protection shell may be different. Figure 2-13 hopeSun series inverter and hanging board size (left, front, back, unit: mm) 2.10 Ambient Requirements... - Page 18 2 Product Description Transportation environment Requirements Storage place Store in a warehouse with air circulation, no harmful gases, no flammable and explosive substances, and no corrosive substances. Avoid strong mechanical vibration and impact; stay away from strong magnetic fields. Ambient temperature -25℃~+70℃...
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Page 19: System Installation
If you find any damage or omissions, please contact Hopewind Technology as soon as possible, our staff will serve you as soon as possible. -
Page 20: Requirements For Reserved Space
User Manual of String Inverter 3.4 Requirements for reserved space When installing string inverters, proper space must be reserved around the string inverters to facilitate heat dissipation and maintenance. Figure 3-1 Installation space of string inverter When multiple string devices are installed on the same plane, it is recommended to install in a straight line. -
Page 21: Fixing Method
3 System installation 3.5 Fixing method For precautions during inverter installation, please refer to "1 Safety Precautions"; for installation environment requirements, please refer to "3.3 Installation environment requirements". During installation, it must be confirmed that the on-site installation position can bear the total weight of the inverter and accessories to avoid falling during installation or use. -
Page 22: Electrical Connection
User Manual of String Inverter 3.6 Electrical connection 3.6.1 Cable requirements The selection of cables should meet the relevant national standards and can meet the load requirements. Power cable requirements Select the cable specifications refer to the electrical data in the product data and the environmental temperature, current, margin and other factors. -
Page 23: Torque Requirements
3 System installation 3.6.3 Torque requirements When tightening the cable connection, the tightening torque needs to meet the requirements of the following table. Table 3-1 List of tightening torques for threaded connections Performance grade 4.8 Performance grade 8.8 Thread Unit Common High density Common... -
Page 24: Connect The Ground Wire
User Manual of String Inverter 3.6.5 Connect the ground wire Connect the inverter to the ground bar through the protective ground wire to achieve the purpose of ground protection. The PE mark is affixed to the PE terminal. The diameter of the ground cable is not less than 16mm and the bolt spec is M6. - Page 25 3 System installation Figure 3-9 Grounding of multiple string inverters...
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Page 26: Connect The Communication Cable
User Manual of String Inverter 3.6.7 Connect the communication cable Selection of communication method The inverter supports anti-backflow interface and RS485 communication. Connecting the cables Connect RS485 cables Take out the anti-backflow communication terminal from the accessories. Insert the terminal communication cables which have been crimped and reinforce them with bolts. -
Page 27: Connect Dc Input Cables
3 System installation 3.6.8 Connect DC input cables In order to make full use of the DC input power, the photovoltaic string of the same input MPPT should have the same structure, including the same model, the same number of panels, the same inclination and the same azimuth. - Page 28 User Manual of String Inverter Figure 3-14 Crimp terminals Insert the core into the male and female ends of the MC4 connector with the correct polarity, and tighten the connector back cover. Figure 3-15 Assembly connectors Insert MC4 terminal Insert the positive and negative connectors into the positive and negative terminals of the DC input of the inverter until you hear a “click”, indicating that the terminal is stuck in place.
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Page 29: Commissioning Guide
Commissioning Guide 4.1 Check before starting Before proceeding to the next step of power on, please read "1 Safety Precautions" carefully and do a detailed check according to the table below. In order to avoid danger, the multimeter and other instruments must be used to detect the voltage between ... -
Page 30: Power On The System
User Manual of String Inverter 4.2 Power on the system After ensuring that the electrical connection is completed normally, you can perform the power-on operation and turn on the inverter. Step 1: Put the "DC SWITCH" of the inverter into the "ON" state. Step 2: Close the AC circuit breaker between the inverter and the power grid. -
Page 31: Maintenance And Troubleshooting
5 Maintenance and troubleshooting Maintenance and troubleshooting 5.1 Maintenance items and cycle Before maintenance, please read "1 Safety Precautions" carefully, and use multimeter and other instruments to detect the voltage between the metal parts that may be contacted with the ground to avoid electric shock. -
Page 32: Troubleshooting
2. If it appears frequently, please contact Alarm Hopewind technical staff. word 1 Open circuit warning Boost unit open circuited. Please contact Hopewind technical staff. on boost side Boost unit short circuited. Please contact Hopewind technical staff. Short circuit warning... - Page 33 Detect RAM chip read and RAM self-test failed write errors. 2. If it appears frequently, please contact Hopewind technical staff. Add EEPROM parameter list 1. Reset and check if the converter EEPROM and re-upgrade the code, the works normally.
- Page 34 Phase C inductor current works normally. Phase C hardware triggers wave-by-wave current overcurrent 2. If it appears frequently, please limiting protection. contact Hopewind technical staff. 1. Reset and check if the converter works normally. Busbar hardware Bus voltage exceeds hardware overvoltage overvoltage threshold.
- Page 35 Module phase A inductor current exceeds the software overcurrent 2. If it appears frequently, please protection threshold. contact Hopewind technical staff. 1. Reset and check if the converter The effective value of the works normally. Module phase B inductor current exceeds the software overcurrent 2.
- Page 36 Unbalanced bus voltage unbalance exceeds voltage 2. If it appears frequently, please the set threshold. contact Hopewind technical staff. 1. Reset and check if the converter works normally. High DC input DC input voltage exceeds set voltage threshold.
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Page 37: Inverter Handling Instructions
When the service life of the inverter expires or after fault replacement, dispose the inverter of in accordance with the relevant laws on the disposal of electrical waste in the place of installation or hand it over to Hopewind Technology customer service personnel. -- Chapter end --... - Page 38 If you need to repair or modify this product, please contact our company in advance. Contact information Shenzhen Hopewind Technology Co., Ltd. Address: Guanlong No. 2 Industrial Park, Xili, Nanshan District, Shenzhen, PR.China Website: en.hopewind.com Email: Globalsupport@hopewind.com...
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