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Summary of Contents for BlueSun BSM8K-B
- Page 1 Bluesun Series String Inverter (BSM8K-B~BSM33K-B) User Manual Version: V1.0...
- Page 2 For Readers This manual is helpful for technicians who install, debug, operate and maintain string inverters of Bluesun 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.
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Page 3: Table Of Contents
Content About this manual ·················································································· 5 Content ································································································· 7 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 ··············································································... -
Page 4: 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 5: Installation
User Manual of String Inverter half a year. Don't store the inverter without package. 1.3 Installation DANGER 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 6: 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 7: Product Description
2.1.1 Schematic Diagram Bluesun BSM8K-B/10K-B/12K-B are connected to the inverter through 2 PV string inputs Bluesun BSM15K-B/17K-B are connected to the inverter through 3 PV string inputs. Bluesun BSM20K-B/22K-B/25K-B are connected through 4 PV string inputs In the inverter. Bluesun BSM30K-B/33K-B are connected to the inverter through 6 PV string inputs. -
Page 8: Operation Mode
User Manual of String Inverter 2.1.2 Operation Mode Bluesun HV string inverter includes three operation modes: standby mode, operation mode and shutdown mode. The three mode switching conditions are shown in Figure 2-5. Standby Mode Operation mode to standby mode:... -
Page 9: Supported Grid Form
Figure 2-7 Design scheme of the l distributed PV power plant 2.2.2 Supported Grid Form Bluesun BSM8K-B ~ Bluesun BSM33K-B support the TN -S , TN -C , TN -C -S ,TT IT sys tems in Figure Figure 2-8 Schematic diagram of IT system 2.3 Naming Rules... -
Page 10: Nameplate Label
-0.8 Operating Ambient Temperature： -40 to +60℃ Ingress Protection ： IP65 Protection Class： Bluesun Solar Co., Ltd www.bluesunpv.com (Note: The data is for reference only; please refer to the physical or technical agreement of the corresponding product for actual parameters) -
Page 11: 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. CAUTION There are components on the board that are sensitive to static electricity. Anti-static measures must be taken before touching the board. - Page 12 AC terminal Figure 2-12 Bottom view of the inverter Note: Bluesun BSM8K-B/10K-B/12K-B has only 2 PV inputs at the bottom, Bluesun BSM 15K-B/17K-B has 3 inputs, Bluesun BSM 20K-B/22K-B/25K-B has 4 inputs, and Bluesun BSM 30K-B/33K-B has 6 inputs. Bluesun models of 17K-B and below have no cooling fan at the bottom.
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Page 13: 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 14: Technical Data
User Manual of String Inverter 2.8 Technical Data Bluesun Bluesun Bluesun Bluesun Bluesun Model BSM 8K-B BSM 10K-B BSM 12K-B BSM 15K-B BSM 17K-B Maximum DC voltage 1100V Startup voltage 180V MPPT voltage range 200V~1000V MPPT full load working 370V~850V... -
Page 15: Mechanical Parameters
MC4 plug-in terminal AC terminal OT terminal & Waterproof lock 2.9 Mechanical Parameters Size and weight Model W*H*D (mm) Net weight (kg) Bluesun BSM 8K-B Bluesun BSM 10K-B ≤22 Bluesun BSM 12K-B 380*400*247 Bluesun BSM 15K-B Bluesun BSM 17K-B Bluesun BSM 20K-B ≤25... -
Page 16: Ambient Requirements
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 Bluesun series inverter and hanging board size (left, front, back, unit: mm) 2.10 Ambient Requirements... - Page 17 2 Product Description Transportation environment Requirements input power and branch current will be derated) ≤100%, allow internal condensation Relative humidity ≤4000m, must be derated above 4000m Altitude Mechanical conditions Vibration should not exceed the following limits: 10Hz≤f＜57Hz, displacement 0.075mm; 57Hz≤f＜150Hz, acceleration 10m/s -- Chapter end --...
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Page 18: System Installation
Note: This chapter takes Bluesun BSM 30K-B as an example to introduce the cable connection methods for installation. The interfaces of other models may be a bit different, so please connect... -
Page 19: 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. ≥200mm ≥300mm 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 20: Fixing Method
3 System installation 3.5 Fixing method WARNING 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 21: 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 22: 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 23: 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 24 3 System installation A B C N Figure 3-9 Grounding of multiple string inverters...
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Page 25: 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. As for the scenario that the 485 loop grid works, it is necessary to short-circuit the matching resistance of the fourth pin of the inverter at the end and the first pin in the figure below. -
Page 26: 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 27 User Manual of String Inverter Crimp method Positive Negative 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. Positive Negative 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 28: 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 29: 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 30: 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 31: Troubleshooting
Auxiliary power auxiliary power supply is too supply overvoltage 2. If it appears frequently, please contact high Bluesun technical staff. 1. Reset and check if the converter 12V below or above works normally. Auxiliary power auxiliary power supply is too supply under voltage 2. - Page 32 1. Reset and check if the converter works normally. EEPROM read and write fault 2. If it appears frequently, please System contact Bluesun technical staff. fault status word 1. Reset and check if the converter works normally. FPGA version does FPGA and DSP versions do not match not match.
- Page 33 Phase C hardware triggers wave-by-wave current overcurrent 2. If it appears frequently, please limiting protection. contact Bluesun technical staff. 1. Reset and check if the converter works normally. Busbar hardware Bus voltage exceeds hardware overvoltage overvoltage threshold. 2. If it appears frequently, please contact Bluesun technical staff.
- Page 34 Module phase A inductor current exceeds the software overcurrent 2. If it appears frequently, please protection threshold. contact Bluesun 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 35 Unbalanced bus voltage unbalance exceeds voltage 2. If it appears frequently, please the set threshold. contact Bluesun 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 36: 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 Bluesun Technology customer service personnel. -- Chapter end --... - Page 37 Appendix Quality assurance The product that fails during the warranty period will be repaired or replaced by a new product for free. Due to the following circumstances, the company has the right not to guarantee quality: When the user arbitrarily decomposes the product or does not properly maintain the problems arising;...
- Page 38 Bluesun Solar Co.,Ltd Building No.7,1499 Zhenxing Road, Shushan District,230031 Hefei,China +86-158-5821-3997 +86-551-6520-3660 info@bluesunpv.com www.bluesunpv.com...
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