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KEHUA TECH SPH-BL Series User Manual

Energy storage inverter
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  • Page 3 Copyright © Xiamen KehuaHengshengCo.,Ltd.2018.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 KehuaHengshengCo.,Ltd. Trademarks and Permissions and other Kehua trademarks are trademarks of Xiamen KehuaHengsheng Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.

  • Page 4: Symbol Conventions

    Energy Storage Inverter SPH-BL(3600-5000) Series Foreword User Manual Foreword Summaries Thank you for choosing energy storage inverter SPH-BL(3600-5000) series product! This document provides a description of energy storage inverter SPH-BL(3600-5000) series product, including the features, performance, appearance, structure, working principles, installation, operation and maintenance, etc.

  • Page 5: Change History

    Energy Storage Inverter SPH-BL(3600-5000) Series 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 (2018-06-08) First issue. All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.

  • Page 6: Table Of Contents

    Energy Storage Inverter SPH-BL(3600-5000) Series Contents User Manual Contents 1 Safety Description......................... 1 1.1 Safety Announcements ............................. 1 1.1.1 Safety Instructions ..........................1 1.1.2 Device Label Illustartion ......................... 3 1.1.3 PV Array Protection ..........................4 1.1.4 ESD Protection ............................4 1.1.5 Grounding Requirements ........................
  • Page 7 Energy Storage Inverter SPH-BL(3600-5000) Series User Manual Contents 4 Electrical Connection ........................21 4.1 Operating Principle ............................21 4.2 Connection Symbol ............................21 4.3 AC Output Wiring ............................22 4.4 PV Input Wiring ............................. 25 4.5 Battery Wiring ..............................28 4.6 COM.

  • Page 9: Safety Description

    Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 1 Safety Description 1 Safety Description This chapter mainly describes safety description. Prior to performing any work on device, please read user manual carefully, follow operation and installation instructions and observe all danger, warning and safety information, which is to avoid human injury and device damage by irregular operations.
  • Page 10 Energy Storage Inverter SPH-BL(3600-5000) Series 1 Safety Description User Manual Don't touch terminals or conductors connected with grid to avoid lethal risk！ There is no operational part inside device. Don't open the crust of device, or it may cause electric shock.

  • Page 11: Device Label Illustartion

    Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 1 Safety Description No liquid or other objects are allowed to enter device. Danger of High Temperature The surface temperature of device may reach to 60℃. During running, don't touch the surface to avoid scald.

  • Page 12: Pv Array Protection

    Energy Storage Inverter SPH-BL(3600-5000) Series 1 Safety Description User Manual Label Illustration Wait for 5 minutes to discharge completely after powering device off. Hot surface. Don't touch! Caution! Multi-channel power supplies power for energy storage inverter. Be careful of electric shock. External grounding label.

  • Page 13: Grounding Requirements

    Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 1 Safety Description 1.1.5 Grounding Requirements High leakage risk! Device must be grounded before performing electrical connection. The grounding terminal must be connected to ground.  When installing device, it must be grounded first. When dismantling device, the grounding wire must be removed at last;...

  • Page 14: Measurement Under Operation

    Energy Storage Inverter SPH-BL(3600-5000) Series 1 Safety Description User Manual When inverter is working, don't dismantle electrical connection. The configuration of PV array, grid level, grid frequency, etc. must meet the technical requirements of device. Grid-connected generation should be allowed by the local power supply department and the related operation should be performed by professionals.

  • Page 15: Operation Requirements

    Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 1 Safety Description 1.2 Operation Requirements The operation and wiring for device should be performed by qualified person, which is to ensure that the electrical connection meets the related standards. Don't perform maintenance until disconnecting AC gird, AC load, DC input and battery input with inverter and wait for 5 minutes to discharge completely.

  • Page 16: Overview

    Energy Storage Inverter SPH-BL(3600-5000) Series 2 Overview User Manual 2 Overview This chapter introduces the inverter intro and its operating mode. 2.1 Product Intro SPH-BL(3600-5000) series inverter is PV energy storage inverter, which mainly applies for household energy storage system, as shown in Figure2-1. The household energy storage and management system consists of energy storage inverter, PV array, batteries, grid, and smart meter(optional), which allows customers to reduce their dependence on grid and even become energy self-sufficient.

  • Page 17: Display Panel

    Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 2 Overview Figure2-2 The exterior view of SPH-BL(3600-5000) series inverter 2.1.2 Display Panel The display panel of SPH-BL(3600-5000) series inverter is as shown in Figure2-3. Figure2-3 Display panel Table2-1 The illustration of display panel Mark Meaning Illustration...
  • Page 18 Energy Storage Inverter SPH-BL(3600-5000) Series 2 Overview User Manual Mark Meaning Illustration Green indicator is on, which means two routes of PV work normally. Green indicator is cycle on 0.5s off 0.5s, which means ○ PV status one route of PV works normally. Green indicator is off, which means PV stops working.

  • Page 19: Operating Mode

    Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 2 Overview 2.2 Operating mode The inverter status can transfer automatically between grid-connected and off-grid mode according to grid status. In the grid-connected status, there are four operating modes: self-consumption priority, battery storage priority, peak shaving and energy shift scheduling. When grid is abnormal or failure, inverter will work in the off-gird emergency mode.
  • Page 20 Energy Storage Inverter SPH-BL(3600-5000) Series 2 Overview User Manual Figure2-5 Battery storage priority Peak shaving If the electricity price makes a big difference in the peak and valley time (In the valley time, the electricity price of grid-connected generation is cheaper than PV array generation, in the peak time, the electricity price of grid-connected generation is cheaper than PV array generation), user can set the charging time and discharging time of battery by WiseEnergy(Equipped monitoring software for PC).
  • Page 21 Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 2 Overview Figure2-6 Peak shaving Energy shift scheduling If the electricity price makes a big difference in the peak and valley time(In the valley time, the electricity price of grid-connected generation is cheaper than PV array generation, in the peak time, the electricity price of grid-connected generation is more expensive than PV array generation), user can set the charging time and discharging time of battery by WiseEnergy(Equipped monitoring software for PC).
  • Page 22 Energy Storage Inverter SPH-BL(3600-5000) Series 2 Overview User Manual Figure2-7 Energy shift scheduling Off-grid emergency mode When grid abnormal or failure, inverter will work in the off-gird emergency mode. The inverter can be regarded as back-up power to supply power for major load, as shown in Figure2-8. In the off-grid emergency mode, the remaining power supply time depends on battery capacity, load and battery remaining energy when grid failure.
  • Page 23 Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 2 Overview Figure2-8 Off-grid emergency mode All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.

  • Page 24: Installation

    Energy Storage Inverter SPH-BL(3600-5000) Series 3 Installation User Manual 3 Installation This chapter introduces the installation for inverter, include unpacking and checking, installation preparation and installation procedures, etc. 3.1 Unpacking and Checking Unpacking the inverter and conduct the following items: ...

  • Page 25: Installation Procedures

    Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 3 Installation Figure3-1 Installation clearance(unit: mm) 3.3 Installation Procedures Inverter can be installed on the wall or metal holder through equipped installation holder, the dimensions of installation holes of the installation holder is as shown in Figure3-2. Figure3-2 The dimensions of installation holes of installation holder (Unit: mm) It can select the two outside kidney-shaped holes ∅8*20 or the two inside kidney-shaped holes ∅8*20.
  • Page 26 Energy Storage Inverter SPH-BL(3600-5000) Series 3 Installation User Manual The following takes wall-mounted method for an example. If adopting other installation method, adjust installation procedures according to application. Step 1 Determine the installation site according to the dimensions of inverter(as shown in Figure3-3) and installation clearance requirements(as shown in Figure3-1).
  • Page 27 Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 3 Installation Step 4 As shown in Figure3-5, put the installation holder in the prepared expansion bolts with the flat washer, spring washer and nut and fasten nuts clockwise by socket to fix the installation holder on the wall.
  • Page 28 Energy Storage Inverter SPH-BL(3600-5000) Series 3 Installation User Manual Step 6 As shown in Figure3-7, fasten the inverter to the installation holder in the two sides of the inverter by equipped bolts M6*16. Figure3-7 Fasten the inverter When installing inverter, it need a person to hold the bottom of inverter for safety concerns. After finish installing inverter, if it doesn't perform electrical connection, it should take waterproof measures for terminals in the bottom of inverter.

  • Page 29: Electrical Connection

    Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 4 Electrical Connection 4 Electrical Connection This chapter mainly introduces inverter electrical connection. 4.1 Operating Principle Figure4-1 is an electric circuit diagram showing the operating principle of the system. Distribution box Energy storage inverter Load RS485 MEN link...

  • Page 30: Ac Output Wiring

    Energy Storage Inverter SPH-BL(3600-5000) Series 4 Electrical Connection User Manual Figure4-2 Connection symbol Table4-1 The illustration of connection symbol Symbol Illustration ○ BATT. Connect with battery ○ WiFi/GPRS Install WiFi/GPRS module ○ COM. Connect with DRM, PC, METER, BMS, TEMP to communicate.
  • Page 31 Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 4 Electrical Connection Install AC switch K3 between grid and inverter, which is convenient to disconnect inverter with grid when performing maintenance, as shown in Figure4-1.The recommended switch is with 250Vac/32A. Install AC switch K4 between major load and inverter, which is convenient to disconnect inverter with major load when performing maintenance, as shown in Figure4-1.
  • Page 32 Energy Storage Inverter SPH-BL(3600-5000) Series 4 Electrical Connection User Manual Step 5 Connect the other end of grid wires with AC switch K3 and then connect K3 with smart meter or grid. Connect the other end of load wires with AC switch K4 and then connect K4 with load circuit that needs back up power.

  • Page 33: Pv Input Wiring

    Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 4 Electrical Connection Figure4-6 Don't connect BACK UP port in parallel Figure4-7 Don't connect BACK UP port with grid ----End 4.4 PV Input Wiring All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.
  • Page 34 Energy Storage Inverter SPH-BL(3600-5000) Series 4 Electrical Connection User Manual PV array meets the IEC61730 class A requirements. If inverter isn't equipped with DC switch, install a DC switch between PV array and inverter. The recommended switch is with 600Vdc/16A. Switch off DC switch before connecting with PC array.
  • Page 35 Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 4 Electrical Connection Figure4-10 Positive wire Figure4-11 Negative wire Step 3 Draw the positive wire and negative wire through the corresponding sealing nuts respectively. Step 4 Insert the positive wire and negative wire into the positive metal terminal and negative metal terminal respectively.

  • Page 36: Battery Wiring

    Energy Storage Inverter SPH-BL(3600-5000) Series 4 Electrical Connection User Manual Figure4-15 Connect with the negative pole of DC input. When using multiple inverters, don't connect PV port in parallel to avoid inverter damage, as shown in Figure4-16. Figure4-16 Don't connect PV port in parallel ----End 4.5 Battery Wiring Add DC switch K2 between battery and inverter to avoid arcing when wiring.
  • Page 37 Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 4 Electrical Connection Step 2 Prepare wires and strip the insulation layer of wires for about 7mm. Loosen the nylon cable gland in the battery cover and draw the wires through it, cover the heat-shrinkable sleeve, crimp the terminals, tighten the heat-shrinkable sleeve and lock them in the inverter, as shown in Figure4-17.

  • Page 38: Com. Communication Connection

    Energy Storage Inverter SPH-BL(3600-5000) Series 4 Electrical Connection User Manual ----End 4.6 COM. Communication Connection Figure4-19 COM. communication connection There are five communication ports: DRM, PC, METER, BMS and TEMP.  DRM port is connected with DRM control device. The pin definition of RJ45 plug is as shown in Figure4-20.

  • Page 39: Wifi/Gprs Connection

    Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 4 Electrical Connection Step 1 Loosen the nylon cable gland in the communication cover. Step 2 Draw DRM signal wire through communication cover and crimp terminals according to Figure4-20, and insert it into DRM port. Connect the other end of DRM signal wire with DRM control device. Step 3 Draw A, B wire of METER through communication cover to corresponding terminals and connect the other end of wires with A, B ports of smart meter.
  • Page 40 Energy Storage Inverter SPH-BL(3600-5000) Series 4 Electrical Connection User Manual When insert equipped WiFi/ GPRS module, align the cut in the WiFi/ GRPS module with the bump in the WiFi/ GPRS port. Figure4-22 WiFi/GPRS connection The WiFi configuration refers to Appendix B WiFi Configuration. Smart phone Network Wireless...
  • Page 41 Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 4 Electrical Connection China iOS China Andriod Foreign iOS Foreign Andriod cellphone cellphone cellphone cellphone Figure4-24 The QR barcode of monitoring APP All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.

  • Page 42: Operation Instruction

    Energy Storage Inverter SPH-BL(3600-5000) Series 5 Operation Instruction User Manual 5 Operation Instruction This chapter introduces inverter startup, shutdown and monitoring setting. 5.1 Opearaion Announcements  Load requirements in the BACK UP port is as below: − Resistive load≤2.5kw; − Capacitive load≤1.5kvar;...

  • Page 43: Monitoring Setting

    Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 5 Operation Instruction 5.4 Monitoring Setting If it needs to perform monitoring setting, connect PC with inverter and download WiseEnergy in the official website. It also can perform monitoring setting through APP in the phone. The details refers to B WiFi Configuration and APP user manual.

  • Page 44: Maintenance And Troubleshooting

    Energy Storage Inverter SPH-BL(3600-5000) Series 6 Maintenance and Troubleshooting User Manual 6 Maintenance and Troubleshooting This chapter mainly introduces inverter maintenance and troubleshooting. 6.1 Maintenance Clean dust on the top of inverter regularly by dry and soft cloth. Don't use water, corrosive material, cleaning agent and strong detergent, etc to clean the inverter.
  • Page 45 Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 6 Maintenance and Troubleshooting Recoverable or Items Protection Measures Inform maintenance Insulation fault Included personnel. Inform maintenance Battery Included personnel if it occurs over-voltage frequently Battery Check whether battery None under-voltage is normal. Inform maintenance Battery charging...
  • Page 46 Energy Storage Inverter SPH-BL(3600-5000) Series 6 Maintenance and Troubleshooting User Manual Recoverable or Items Protection Measures Inform maintenance Grid amplitude Included personnel if it occurs abnormal frequently. Inform maintenance Inverter voltage Included personnel if it occurs abnormal frequently. Inform maintenance Inverter Included personnel if it occurs...
  • Page 47 Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 6 Maintenance and Troubleshooting Recoverable or Items Protection Measures Inverter voltage Inform maintenance component Included personnel. abnormal Radiator over- Inform maintenance Included temperature personnel. Temperature protection protection Inner over- Inform maintenance Included personnel. temperature Inform maintenance...
  • Page 48 Energy Storage Inverter SPH-BL(3600-5000) Series 6 Maintenance and Troubleshooting User Manual Don't perform maintenance until disconnecting AC gird, AC load, DC input and battery input with inverter and wait for 5 minutes to discharge completely. Please get ready the following information in advance before contacting with us. Serial number of inverter.

  • Page 49: Package, Transportation, Storage

    Energy Storage Inverter SPH-BL(3600-5000) Series User Manual 7 Package, Transportation, Storage 7 Package, Transportation, Storage This chapter mainly introduces package, transportation and storage. 7.1 Package The inverter is packaged with carton. and the package size is 680(W)*660(D)*300(H)（mm). During packing, pay attention to the positioning direction requirements. 7.2 Transportation During transportation, pay attention to warnings on the carton.

  • Page 50: Technical Specifications

    Energy Storage Inverter SPH-BL(3600-5000) Series A Technical Specifications User Manual Technical Specifications Model SPH3600-BL SPH5000-BL Max. PV input power (W) 4000 5500 Max. PV input voltage(VDC) PV short-circuit current(A) 13.8 Max. PV input current(A) Input group (N) MPPT route (N) 2(can be paralleled) input Max.
  • Page 51 Energy Storage Inverter SPH-BL(3600-5000) Series User Manual A Technical Specifications Model SPH3600-BL SPH5000-BL Max. battery charging current(A) Max. battery discharging power (W) 2500 Max. battery discharging current(A) Battery input short-circuit current(A) Battery output short-circuit current(A) Battery capacity(Ah) 100~250 Rated grid input active power(W) 2500 Rated grid input voltage(Vac) 220/230/240...
  • Page 52 Energy Storage Inverter SPH-BL(3600-5000) Series A Technical Specifications User Manual Model SPH3600-BL SPH5000-BL Over-voltage class Class III Rated off-grid output apparent 3500 power(VA) Rated off-grid output active power (W) 2500 Rated off-grid output voltage(Vac) 220/230/240 Rated off-grid output current(A) 11.4/10.9/10.4 Backup Max.
  • Page 53 Energy Storage Inverter SPH-BL(3600-5000) Series User Manual A Technical Specifications Model SPH3600-BL SPH5000-BL Inverter topology Non-isolated Cooling way Natural cooling Noise(dB) <25 LED/ Cloud monitoring phone APP Wet locations Relative humidity 4%~100% Operating temperature range(℃) -25~ +60; If operating temperature exceeds 45℃, it is necessary to decrease 3% of rated power per 1℃.

  • Page 54: B Wifi Configuration

    Energy Storage Inverter SPH-BL(3600-5000) Series B WiFi Configuration User Manual WiFi Configuration The configuration of WiFi may be set via PC or smart phone with WiFi function. The setting hereinafter is operated with Windows XP for reference only. If other operating systems or smart phones are used, please follow the corresponding procedures.
  • Page 55 Energy Storage Inverter SPH-BL(3600-5000) Series User Manual B WiFi Configuration Set WiFi connection to the data logger Open "Wireless Network Connection Status" and click "View Wireless Networks". All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.
  • Page 56 Energy Storage Inverter SPH-BL(3600-5000) Series B WiFi Configuration User Manual Select wireless network of the data logger, no passwords required as default. The network name consists of AP and the serial number of the product. Then click "Connect". Connection successful. Set parameters of data logger.
  • Page 57 Energy Storage Inverter SPH-BL(3600-5000) Series User Manual B WiFi Configuration Follow the setup wizard to start quick setting. Click "Wizard" to start, then click "Start" to continue. " Select" Wireless connection", and select the type of your inverter, then click Next".
  • Page 58 Energy Storage Inverter SPH-BL(3600-5000) Series B WiFi Configuration User Manual Click "Refresh" to search available wireless networks, or add it manually. Then select the wireless network you need to connect, then click "Next". Enter the password for the selected network, then click "Next". All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.
  • Page 59 Energy Storage Inverter SPH-BL(3600-5000) Series User Manual B WiFi Configuration Select "Enable" to obtain an IP address automatically, then click "Next". Enhance security settings of the WiFi by selecting any options as listed, then click "Next". Option 1：If you choose to hide AP, the SSID of the AP network for your WiFi will be invisible on your wireless network list.
  • Page 60 Energy Storage Inverter SPH-BL(3600-5000) Series B WiFi Configuration User Manual Option 2: If you wish to change the encryption mode of the AP network, you will need to enter the correspondent encryption method and password before connecting next time. Option3: If you wish to change the user name and the password of the Web server, please enter the new username and password when you need to re-log in this server.
  • Page 61 Energy Storage Inverter SPH-BL(3600-5000) Series User Manual B WiFi Configuration If setting is successful, the following page will display. Click "OK" to restart. If restart is successful, the following page will display. If this page does not display automatically, please refresh your browser. All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.
  • Page 62 Energy Storage Inverter SPH-BL(3600-5000) Series B WiFi Configuration User Manual Re-log on this setting page to status interface after the Web server restart, and check the network connection status of the data logger. After network setting is complete, the "Wireless STA mode" should be enabled and relative information of your router will display on the interface automatically.

  • Page 63: Acronyms And Abbreviations

    Energy Storage Inverter SPH-BL(3600-5000) Series User Manual C Acronyms and Abbreviations Acronyms and Abbreviations Alternating Current American Wire Gauge Direct Current International Electrotechnical Commission Light-emitting Diode MPPT Maximum Power Point Tracking Protective Earthing All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.
  • Page 64 Energy Storage Inverter SPH-BL(3600-5000) Series C Acronyms and Abbreviations User Manual Photovoltaic RS485 Recommend Standard485 Total Distortion of the input current THDi waveform All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.

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