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Troubleshooting
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Summary of Contents for Hopewind hopeSunHV Series
- Page 3 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 5: 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 7: Table Of Contents
Content About this manual · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 5 Content ·... - Page 8 6.4 Scrapped the inverter · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 33...
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Page 9: 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 10: Installation
User Manual of String Inverter damages caused by insects and rats. Please replace the damaged package immediately. The inverter shall be unpacked, inspected, repacked, and replace the new desiccant if it is stored for over half a year. Don't store the inverter without package. -
Page 11: 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 13: Product Description
Product Description 2.1 Product Description hopeSunHV 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. hopeSunHV 225KTL and hopeSunHV 250KTL are 24 PV arrays string inverter. These products only suit for 1500V system and 800VAC on-grid LPVGS (Large Photovoltaic Grid System). -
Page 14: System Configuration And Application
User Manual of String Inverter 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. Under this mode, the inverter continuously performs self-checking and enters operation mode once the Standby operation conditions are satisfied. -
Page 15: Supported Grid Form
2 Product Description Power grid Central monitoring center hopeView Client Mobile Internet Internet WiFi/GPRS wireless module hopeCloud Box-type Internet transformer String inverter User load PV arrays Figure 2-5 Design scheme of the l distributed PV power plant 2.2.2 Supported Grid Form hopeSunHV 225KTL and hopeSunHV 250KTL support the IT system in Figure 2-6. -
Page 16: 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 17: Machine Configuration
2 Product Description 2.5 Machine Configuration This section describes the internal components, back device, and bottom interface of the string inverter. CAUTION There are components on the board that are sensitive to static electricity. Anti-static measures must be taken before touching the board. When touching the board, please be careful to avoid scratching the electrical components. - Page 18 User Manual of String Inverter Label Component Name Handle Installation parts Inductor Figure 2-9 Back view of the inverter Label Component Name 1+ ~ 24+ PV terminals 1- ~ 24- AC OUTPUT AC terminal Protective earthing DC SWITCH DC switch WiFi/GPRS communication interface Figure 2-10 Bottom view of the inverter (Interface description)
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Page 19: 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 20: Technical Data
User Manual of String Inverter 2.8 Technical Data Model hopeSunHV 225KTL hopeSunHV 250KTL Maximum input voltage 1500V Minimum working voltage 500V Working voltage range 500V~1500V MPPT full load working 820V~1320V voltage range Input Rated input voltage 1080V parameters Maximum input current per MPPT Maximum short circuit current per MPPT... -
Page 21: Mechanical Parameters
250KTL Note: size does not contain hangers, handles, pads, and so on. Dimensional error: ± 10mm. Inverter structure size Figure 2-11 hopeSunHV series inverter and hanging board size (left, front, back, unit: mm) 2.10 Environment Requirements Transportation environment Requirements Type of shipping Waterways, railways, highways, aviation, etc. - Page 22 User Manual of String Inverter Transportation environment Requirements Ambient temperature -40℃~+70℃ ≤100% Relative humidity Mechanical conditions The vibration should not exceed the following limits: 10Hz≤f＜57Hz, displacement 0.075mm; 57Hz≤f＜150Hz, acceleration 10m/s Requirements Working environment Normal operating state Shut down state Installation site Usually installed outdoors, at the bottom of the photovoltaic module.
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Page 23: 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 24: 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. ≥300mm ≥300mm Figure 3-1 Installation space of string inverter Please install the string inverter vertically, and the inclination angle should not exceed 15 ° in order to facilitate heat dissipation. -
Page 25: Fixing Method
3 System installation 3.5 Fixing method A hanging plate is attached to the package of the string-type inverter. When installing, you must install the hanging plate first, and then hang and fasten the inverter on the hanging plate. According to the needs of the actual installation environment, you can choose two installation methods: pole-mounted installation or wall-mounted installation. -
Page 26: Pole-Mounted (Screw) Installation
User Manual of String Inverter 3.5.2 Pole-mounted (screw) installation Installation steps Take out the hanging plate in the package and confirm the front, back, top and bottom of the hanging plate; Fix the hanging plate to the installation position using 3 PCS M8 screws (inverter accessories);... -
Page 27: Wall-Mounted Installation
3 System installation 3.5.3 Wall-mounted installation This installation method can install the inverter on the load-bearing wall or bracket. If you want to install the inverter on the wall, please purchase M8 expansion nails for perforated installation on the wall according to site installation environment, wall load-bearing and other factors by yourself. -
Page 28: 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 29: Torque Requirements
3 System installation 3.6.3 Torque requirements When fastening the cable connection, the tightening torque must meet the requirements in the following table. "General connection (GC)" refers to the non electrical connection that plays the role of fixed connection; "High-tightness connection (HC)" refers to the connection that needs to ensure sealing, heat dissipation, shielding, conduction and other occasions. -
Page 30: Connect The Pe Cable
User Manual of String Inverter 3.6.5 Connect the PE cable Connect the inverter to the ground bar through the PE cable 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 35mm and the bolt spec is M6. -
Page 31: Connect The Communication Cable
3 System installation 3.6.7 Connect the communication cable Selection of communication method The inverter supports RS485 communication. Connecting the cables Connect the RS485 interfaces of inverters by cable, and check is the connection secure. Check if there is a gap in the connection and block the gap by fireproof mud. 3.6.8 Connecting DC input cables ... - Page 32 User Manual of String Inverter Steps of crimping MC4 terminal The input cable needs to be crimped into MC4 terminals in order to connect with the PV+/PV- terminals of the string inverter. Before operation, make sure that "3.6.4 Preparation before operation"...
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Page 33: Commissioning Guide
Commissioning Guide 4.1 Check before starting DANGER 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 the metal parts in the inverter with the shell (protective ground) of the inverter. -
Page 34: 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: Close the AC circuit breaker between the inverter and the power grid. Step 2: Put the "DC SWITCH"... -
Page 35: Maintenance And Troubleshooting
5 Maintenance and troubleshooting Maintenance and troubleshooting 5.1 Maintenance items and cycle DANGER 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 36: Troubleshooting
Feedback SPD failure of in SPD alarm Please contact Hopewind technical staff. wrong state. Open circuit warning Boost unit open circuited. Please contact Hopewind technical staff. on boost side Alarm Short circuit warning Boost unit short circuited. - Page 37 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 38 User Manual of String Inverter Fault Fault/alarm name Cause of failure/alarm Troubleshooting word 1. Confirm whether the inverter’s grid voltage sampling is normal. The voltage of the AB line of 2. Confirm whether there is a fault Grid AB line the power grid exceeds the such as a box transformer tripped on overvoltage...
- Page 39 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 40 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 41: Inverter Handling Instructions
When the service life of the inverter expires or after fault replacement, it can be disposed of in accordance with the relevant laws on the disposal of electrical waste in the place of installation or it can be handed over to Hopewind Technology customer service personnel. - Page 42 If you need to repair or modify this product, please contact our company in advance. Contact information Shenzhen Hopewind Technology Co., Ltd. Address: Building 5, Xili Guanlong Second Industrial Zone, Nanshan District, Shenzhen Website:www.hopewind.com Email: hopewind@hopewind.com...
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