KEHUA TECH SPI500K-B User Manual

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SPI500K-B (V4.1-V4.3)

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Page 1 User Manual SPI500K-B (V4.1-V4.3)
Page 3 Copyright © Xiamen Kehua Hengsheng Co., Ltd. 2016. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Xiamen Kehua Hengsheng Co., Ltd. Trademarks and Permissions and other Kehua trademarks are trademarks of Xiamen Kehua Hengsheng Co., Ltd.
Page 4 SPI500K-B (V4.1-V4.3) Foreword User Manual Foreword Summaries Thank you for choosing the Kehua SPI Series products! This manual is suitable for SPI500K (V4.1-V4.3) series indoor grid-connected inverter. This document gives a description of the product, including the inverter features, performance, appearance, structure, working principles, installation, operation and maintenance .etc.
Page 5 SPI500K-B (V4.1-V4.3) User Manual Foreword Change History Changes between document issues are cumulative. The latest document issue contains all the changes made in earlier issues. Issue 001 (2016-10-14) First issue. All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.
Page 6: Table Of Contents
SPI500K-B (V4.1-V4.3) Contents User Manual Contents 1 Safety Description......................... 1 1.1 Safety Announcements ............................. 1 2 Overview ............................3 2.1 Product Intro..............................3 2.1.1 Features ..............................3 2.1.2 Nameplate ............................... 4 2.1.3 Product Difference ..........................5 2.2 Appearance and Panel ............................5 2.2.1 Appearance ..............................
Page 7 SPI500K-B (V4.1-V4.3) User Manual Contents 3.2.3 Installation Clearance ..........................16 3.2.4 Heat Dissipation Requirements for Installing Environment ..............17 3.3 Transportation ..............................18 3.3.1 Forklift Transportation .......................... 18 3.3.2 Lifting Transportation ........................... 19 3.4 Installation Procedure ............................. 20 3.5 Electrical Connection ............................. 23 3.5.1 Wiring Requiremnts ..........................
Page 8 SPI500K-B (V4.1-V4.3) Contents User Manual 6 Routine Maintenance ......................... 45 6.1 Machine Room Management ......................... 45 6.2 Maintenance Guide ............................46 6.3 Safety Precautions ............................46 6.4 Preventive Maintenance ..........................46 6.5 Maintenance Operation Procedure ......................... 47 7 Troubleshooting .......................... 48 7.1 Rectifying Common Faults ..........................
Page 9: Safety Description
SPI500K-B (V4.1-V4.3) User Manual 1 Safety Description 1 Safety Description This chapter describes the safety symbols and safety announcements. Please read this user manual carefully prior to installing the device, and operate and install according to the instructions described in the manual to avoid human dangerous or device damage. Any equipment damage caused by violating the common safety operation requirements or safety standards of design, producing, and using will be out of Xiamen Kehua's warranty range.
Page 10 SPI500K-B (V4.1-V4.3) 1 Safety Description User Manual The place where close to resident living quarter. − ⚫ No liquid or other objects are allowed to enter the cabinet. ⚫ High leakage risk! The inverter must be grounded before electrical connection. The ground terminal must be connected to the ground.
Page 11: Overview
SPI500K-B (V4.1-V4.3) User Manual 2 Overview 2 Overview This chapter mainly introduces the product features, appearance, operation panel, work principle, work modes, etc. 2.1 Product Intro The grid-connected inverter is used as the PV grid-connected inverter in PV grid-connected power generation system.
Page 12: Nameplate
⚫ Coordinate with Kehua’s anti-countercurrent system and use in grid-connected self-used project. 2.1.2 Nameplate The important information of the product can be obtained on the nameplate, as shown in Figure2-2. Figure2-2 SPI500K-B (V4.1~V4.3)nameplate information All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.
Page 13: Product Difference
2.2 Appearance and Panel 2.2.1 Appearance The appearance of SPI500K-B products is as shown in Figure2-3. Figure2-3 Appearance 2.2.2 Panel The operation panel of SPI500K-B series products is as shown in Figure2-4. All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.
Page 14 SPI500K-B (V4.1-V4.3) 2 Overview User Manual ① ② ③ ④ ⑤ Figure2-4 Operation panel The description of operation panel is as shown in Table2-2. Table2-2 Description of the operation panel Silk screen Name Description Green: when the indicator is on, the PV ○...
Page 15: Component Description
SPI500K-B (V4.1-V4.3) User Manual 2 Overview 2.3 Component Description 2.3.1 DC Disconnector DC disconnector is the connector between PV grid-connected inverter and PV modules. When the equipment is working properly, the DC disconnector must stay in “ON” position. When operating and wiring, keep the DC disconnector stay in “OFF”...
Page 16: Work Principle
SPI500K-B (V4.1-V4.3) 2 Overview User Manual Table2-3 Requirement of fuse Position Fuse of AC side Rated voltage 690V Rated current 1600A Recommended model and brand 170M6469 / Bussmann 2.4 Work Principle The electricity produced by PV modules goes through SPD and DC filter. The SPD absorb DC side...
Page 18: Working Modes
SPI500K-B (V4.1-V4.3) 2 Overview User Manual 2.5 Working Modes The inverter can realize nobody monitoring and automatic working. System will determine whether to connect grid and generate power according to the output power of PV array. The system running process includes start, connect grid and generation, standby, normal halt and fault dispose.
Page 19: Monitoring Mode
SPI500K-B (V4.1-V4.3) User Manual 2 Overview Standby Standby means that the output voltage of PV array up to a certain value and the parameters of grid voltage and frequency are within normal range, and the grid-connected contactor is connected, but the output energy of PV array is not enough to generate power continuously.
Page 20: Computer Monitor By Rs485
SPI500K-B (V4.1-V4.3) 2 Overview User Manual 2.6.2 Computer Monitor by RS485 PV grid-connected PV grid-connected PV grid-connected PV grid-connected inverter 1 inverter 2 inverter 3 inverter N Figure2-8 Computer monitor by RS485 When monitoring PV grid-connected inverter by PC, the communication adopts RS485 bus, and there is a RS485/RS232 electrical level converter between PC and RS485, the communication system wiring is as shown in Figure2-9.
Page 21: Installation
SPI500K-B (V4.1-V4.3) User Manual 3 Installation 3 Installation This chapter mainly introduces the installation of the inverter, including the preparation before installing, the requirements for installing environment, installation of the inverter, electrical connection, etc. 3.1 Unpacking and Checking Unpacking the inverter and conduct the following checks: ⚫...
Page 22 SPI500K-B (V4.1-V4.3) 3 Installation User Manual Tool Appearance Description Phillips screwdriver Used to tighten screws and bolts. (PH2x 150mm and PH3 x250mm) Slotted screwdriver Connect cable, fasten screw （2mm× 80mm） Socket wrench Used to tighten bolts and nuts. Adjustable spanner...
Page 23: Installation Environment
SPI500K-B (V4.1-V4.3) User Manual 3 Installation Tool Appearance Description Brush Clean the panel and shell. Heat shrink tubing Used to insulate wires and conductors. (Φ14、 Φ18、 Φ20、 Φ25） Heat gun Used to heat a heat shrink tubing. Electrician's knife Used to strip cables.
Page 24: Installation Clearance
SPI500K-B (V4.1-V4.3) 3 Installation User Manual ⚫ The temperature should be within the range of-25℃ and +45℃. 3.2.3 Installation Clearance ⚫ The dimension of the inverter is 1100mm×2000mm×800mm (W×H×D), and the weight is 1000kg. Keep enough space to install the inverter. So, the foundation must have a certain load bearing capacity to support the inverter and enough space to place the inverter.
Page 25: Heat Dissipation Requirements For Installing Environment
SPI500K-B (V4.1-V4.3) User Manual 3 Installation Figure3-2 Installation space diagram Table3-1 The min. installation space size (mm) 1300 3.2.4 Heat Dissipation Requirements for Installing Environment To ensure the inverter work in good status, the installation space should be with good ventilation.
Page 26: Transportation
SPI500K-B (V4.1-V4.3) 3 Installation User Manual Figure3-3 Air flue diagram for heat dissipation Please clean the dust and barrier on the air outlet regularly (every 3 months). The heat dissipation air flue should be designed by professionals. When using heat dissipation air flue, the size of E in Table3-1 should be adjusted according to the actual size of air flue.
Page 27: Lifting Transportation
SPI500K-B (V4.1-V4.3) User Manual 3 Installation Figure3-4 Forklift transportation When use forklift to lift the inverter, keep the equipment vertical, and do not put down or put up suddenly. 3.3.2 Lifting Transportation The inverter can be lifting transported through the girder at the top of the inverter, as shown in Figure3-5.Before lifting, ensure that the distance between lifting hook and the top of the inverter is...
Page 28: Installation Procedure
SPI500K-B (V4.1-V4.3) 3 Installation User Manual 3.4 Installation Procedure Step 1 Select and determine the installation position according to the inverter size (as shown in Figure3-6) and installation clearance requirements（see 3.2.3 Installation Clearance）. Figure3-6 The external size of the inverter...
Page 29 SPI500K-B (V4.1-V4.3) User Manual 3 Installation The exposed part of expansion bolt must be within 50mm. For convenient wire installation and maintenance, it is necessary to reserve corresponding cable trough, the schematic diagram is as shown in Figure3-7. Figure3-8 Geosyncline diagram The recommended weight and depth of cable trough is within the range of 500-600mm.
Page 30 SPI500K-B (V4.1-V4.3) 3 Installation User Manual Figure3-9 The position of fastened bolts Step 5 Move the inverter from wooden bracket to the ground, and align the installation hole of pedestal to the position of expansion bolt, installΦ12 flat gasket, spring gasket, then fasten them.
Page 31: Electrical Connection
SPI500K-B (V4.1-V4.3) User Manual 3 Installation 3.5 Electrical Connection 3.5.1 Wiring Requiremnts Grid-connected generation should be allowed by local power supply department and operated by professionals. Ensure that the AC&DC side is without electricity when wiring. The open-circuit voltage of configured PV array should not exceed 1000V.
Page 32: Wiring Procedure
SPI500K-B (V4.1-V4.3) 3 Installation User Manual The dimensions of wires above are based on UL standard. If user chooses other wires, please replace reasonably referring to standard. 3.5.2 Wiring Procedure Step 1 Use the keys to open the locks of the front door separately.
Page 33 SPI500K-B (V4.1-V4.3) User Manual 3 Installation Step 3 Connect the grounding wires, and wiring position is as shown inFigure3-14. Ensure the grounding wire is connected to the grounding wire of the area, and ensure good connection. The grounding standard please see“Table3-2 Wiring requirements”.
Page 34 Connect wires of DC side. The anode and cathode of PV array is connected to “+” and “-” of DC input separately, the DC side wiring of SPI500K-B V4.2, V4.3 is as shown inFigure3-14. Figure3-14 Wiring diagram of DC side...
Page 35 SPI500K-B (V4.1-V4.3) User Manual 3 Installation When connectting the wires of DC side input, the input current should not exceed 1200A (the current of each route in V4.2-V4.3 products, should not exceed 160A). ----End All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.
Page 36: Operation Guide
4 Operation Guide User Manual 4 Operation Guide This chapter mainly introduces the touch screen operation of SPI500K-B(V4.1-V4.3), including the function of touch screen, menu structure, main interface, startup and shutdown, setting, etc. 4.1 Function of Touch Screen It can realize following functions by touch screen, as shown in Table4-1.
Page 37: Menu Structure Of Lcd Touch Screen
SPI500K-B (V4.1-V4.3) User Manual 4 Operation Guide 4.2 Menu Structure of LCD Touch Screen Power curve Daily generation capacity Graph Daily generation time Monthly generation capacity Monthly generation time Back Running information Engineering setting Screen setting History log History information...
Page 38: Main Page
SPI500K-B (V4.1-V4.3) 4 Operation Guide User Manual ⚫ Running information display: Display all current measuring data and running status. ⚫ Engineering setting: Mainly includes the site setting, power station mode, anti-countercurrent function, CVT / MPPT mode and Active islanding permission.
Page 39: Login
SPI500K-B (V4.1-V4.3) User Manual 4 Operation Guide Figure4-3 Default main page The function description of default page is as follows. ⚫ Working status: it is used to display current working status. As shown in Table4-2. Table4-2 Working status description Working status...
Page 40 SPI500K-B (V4.1-V4.3) 4 Operation Guide User Manual Figure4-4 “User Login” page Enter password and click “ENT” button, then click “Login” icon, as shown in Figure4-5. Step 3 Figure4-5 Enter password page Initial password for user is 111. Step 4 After login, it will enter authority personnel page, as shown inFigure4-6.
Page 41: On/Off Operation
SPI500K-B (V4.1-V4.3) User Manual 4 Operation Guide Figure4-6 Authority personnel page ----End 4.5 ON/OFF Operation 4.5.1 ON Operation Step 1 Enter main page, click icon, it will enter ON/OFF controlling page. Click “OK” button to start the inverter, click “Cancel” button to give up the startup operation, as Step 2 shown in Figure4-7.
Page 42: Off Operation
SPI500K-B (V4.1-V4.3) 4 Operation Guide User Manual 4.5.2 OFF Operation Step 1 Enter main page, click icon, it will enter ON/OFF controlling page. Click “OK” button to shut down the inverter, click “Cancel” button to give up the shutdown Step 2...
Page 43: Preferences
SPI500K-B (V4.1-V4.3) User Manual 4 Operation Guide Figure4-9 “Running information” page Click “Next” button to look up the information in next page. Step 4 Figure4-10 “Running information” page ----End 4.7 Preferences Step 1 Enter the default main page. Step 2 Click icon to enter Function page.
Page 44 SPI500K-B (V4.1-V4.3) 4 Operation Guide User Manual Figure4-11 “Parameters setting” page Click “screen setting” icon to enter Screen Setting page, as shown in Figure4-12. Step 4 Figure4-12 “Screen setting” page Step 5 User can set the date, time, backlight brightness, screensaver and language. After modification, it will popup a page, as shown in Figure4-13, press “OK”...
Page 45: Engineering Setting
SPI500K-B (V4.1-V4.3) User Manual 4 Operation Guide Figure4-13 Screen setting modification page Figure4-14 Date and time setting ----End 4.8 Engineering Setting Step 1 Enter the default main page. Step 2 Click icon to enter Function page. Click “preferences” icon to enter Preferences page, as shown inFigure4-15.
Page 46 SPI500K-B (V4.1-V4.3) 4 Operation Guide User Manual Figure4-15 Preferences page On Preferences page, click “system setting” icon to enter System Setting page, as shown Step 4 inFigure4-16. Figure4-16 “System setting” page Step 5 Set the mode of power station, anti-countercurrent function, active islanding and recover time of grid-connected, etc.
Page 47: Nowfault Inquiry
SPI500K-B (V4.1-V4.3) User Manual 4 Operation Guide ⚫ Active power: 500KW. ⚫ Reactive power: 0 Kvar. ⚫ Power factor: set as 1. ----End 4.9 NowFault Inquiry If the system occurs some faults, the touch screen will popup “alarm” window, as shown Step 1 inFigure4-17.
Page 48: History Information
SPI500K-B (V4.1-V4.3) 4 Operation Guide User Manual Click “back” button to return to upper page. Step 3 ----End 4.10 History Information Under the system running status, if user needs to inquire the history information of the inverter, perform the following procedures.
Page 49 SPI500K-B (V4.1-V4.3) User Manual 4 Operation Guide Click “ restore to factory setting” icon to enter recover to factory setting page, as shown Step 4 inFigure4-20. Figure4-20 Recover to factory setting page After clicking “OK”, it will perform the operation of restore to factory setting, as shown in Step 5 Figure4-21.
Page 50: System Commissioning
SPI500K-B (V4.1-V4.3) 5 System Commissioning User Manual 5 System Commissioning This chapter mainly introduces the system commissioning of the inverter, including manual operation and automatic operation. 5.1 Manual Operation Please re-confirm DC&AC voltage according with allowable range of the inverter, switch on DC circuit breaker of the inverter first, and then switch on DC circuit breakers of the distribution box, otherwise the device may damage.
Page 51 SPI500K-B (V4.1-V4.3) User Manual 5 System Commissioning Figure5-1 Step 1 Step 2 Close the surge protection breaker of AC side (K2), as shown in Figure5-2. Figure5-2 Step 2 Step 3 Close the breaker of auxiliary power (K3), as shown in Figure5-3.
Page 52: Self-Starting
SPI500K-B (V4.1-V4.3) 5 System Commissioning User Manual Figure5-4 Step 5 Step 6 Close the AC breaker of AC distribution cabinet Set the “system setting \self-starting” to disable. Step 7 Step 8 Close the breaker of DC distribution cabinet. Step 9 Close the DC breakers of junction box successively.
Page 53: Routine Maintenance
SPI500K-B (V4.1-V4.3) User Manual 6 Routine Maintenance 6 Routine Maintenance This chapter mainly introduces the maintenance and safety precautions, preventive maintenance and maintenance procedure, etc. 6.1 Machine Room Management Room management include room environment security management and device management .The job of room environment security management is to keep the room temperature, humidity, cleanliness, static, noise, EMI meet the requirement ,and to ensure power supply properly.
Page 54: Maintenance Guide
SPI500K-B (V4.1-V4.3) 6 Routine Maintenance User Manual Checking items Cycle Yearly Grounding and ground connection resistance test Yearly Dust grain density measuring 6.2 Maintenance Guide The correct maintenance is the key of the best operation for inverter. It can prolong the device service life.
Page 55: Maintenance Operation Procedure
SPI500K-B (V4.1-V4.3) User Manual 6 Routine Maintenance 6.5 Maintenance Operation Procedure Shut down the inverter according to “ON/OFF” operation on the panel (at this time, the inverter does Step 1 not grid-conned generation, but the input and output port of the inverter still has electricity).
Page 56: Troubleshooting
SPI500K-B (V4.1-V4.3) 7 Troubleshooting User Manual 7 Troubleshooting This chapter mainly introduces the dispose methods of common faults. 7.1 Rectifying Common Faults Once the inverter failure, the fault indicator will be on, buzzer will send alarm, and the touch screen will display the current fault, at the same time, the inverter will halt.
Page 57 SPI500K-B (V4.1-V4.3) User Manual 7 Troubleshooting Phenomenon Solutions IGBT malfunction or drive board is in trouble. Check if the drive wires are loose. Drive fault If this fault occurs repeatedly, please contact our company. Check if the sampling wire of inverter voltage is OK.
Page 58 SPI500K-B (V4.1-V4.3) 7 Troubleshooting User Manual Phenomenon Solutions If this fault occurs repeatedly, please contact our company. Fan is not working properly. Check if wire connection of fan is well Fan fault Check if fan is blocked. If this fault occurs repeatedly, please contact our company.
Page 59: A Technical Specifications
SPI500K-B (V4.1-V4.3) User Manual A Technical Specifications Technical Specifications Model SPI500K-B V4.1 SPI500K-B V4.2 SPI500K-B V4.3 Items Dc side 1 routes 8 routes 8 routes DC input route amount Whether equipped with DC None distribution breaker Whether equipped with None...
Page 60 SPI500K-B (V4.1-V4.3) A Technical Specifications User Manual Model SPI500K-B V4.1 SPI500K-B V4.2 SPI500K-B V4.3 Items The max. output current 1008A <3% (rated power) Total current wave distortion >0.99（it can be adjusted at the range of -0.9 to +0.9） Power factor >98.5%...
Page 61 SPI500K-B (V4.1-V4.3) User Manual A Technical Specifications Model SPI500K-B V4.1 SPI500K-B V4.2 SPI500K-B V4.3 Items ＜75dB Noise ⚫ Specifications are subject to change without prior notice. All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.
Page 62: B Acronyms And Abbreviations
SPI500K-B (V4.1-V4.3) B Acronyms and Abbreviations User Manual Acronyms and Abbreviations Alternating Current Direct Current Digital Signal Processor Emergency Power Off Liquid Crystal Display MPPT Maximum Power Point Tracking Photovoltaic All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.
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