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KEHUA TECH SPI-B X2 Series User Manual

Pv grid-tied inverter
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SPI-B X2 Series (30K-40K)
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Summary of Contents for KEHUA TECH SPI-B X2 Series

  • Page 1 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual...
  • Page 3 Copyright © Xiamen Kehua Digital Energy Tech Co., Ltd. 2024. 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 Digital Energy Tech Co., Ltd. Trademarks and Permissions and other Kehua trademarks are the licensed trademarks of Xiamen Kehua Digital Energy Tech Co., Ltd.
  • Page 4 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) Foreword User Manual Foreword Summaries Thank you for choosing the PV grid-tied inverter (hereinafter referred to as inverter)! This document gives a description of the inverter, including appearance, features, working principles, installation, electrical connection, operation, maintenance and storage, etc.
  • Page 5 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual Foreword Symbol Description Alerts you to a medium low risk hazard that could, if not avoided, result in moderate or minor injury. Alerts you to a low risk hazard that could, if not avoided, result in minor injury.
  • Page 6 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) Foreword User Manual Issue 004 (2023-02-22) Update a WIFI/4G module with a USB port. Issue 003 (2022-06-16) Update company information. Issue 002 (2022-03-18) Update device model. Issue 001 (2022-02-22) First issue.
  • Page 7 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual Contents Contents 1 Safety Description......................... 1 1.1 Safety Announcements ............................. 1 1.1.1 Use Announcements ..........................2 1.1.2 Symbol Illustration ..........................3 1.2 Personal Safety ..............................4 1.3 Safety Precaution for Hybrid Inverter ......................6 1.3.1 Protection from PV String ........................
  • Page 8 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) Contents User Manual 2.1 Product Intro..............................13 2.1.1 Model Meaning ............................. 15 2.1.2 Work Mode (Applicable When Selecting Battery Packs) ..............15 2.2 Apperance ............................... 17 2.2.1 Hybrid Inverter ............................17 2.2.2 Battery Pack (Optional) ........................18 2.3 Structure Layout .............................
  • Page 9 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual Contents 3.5.4 AC Output Connection .......................... 58 3.5.5 WIFI/4G (Optional) Communication Connection ................60 3.5.6 COM. Communication Connection ...................... 62 3.5.7 Energy Storage Connection (Applicable When Selecting Battery Packs) ..........66 3.6 Check the Installation .............................
  • Page 10 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) Contents User Manual 5.1 Check Before Startup ........................... 105 5.2 Startup ................................105 5.3 Shutdown ..............................106 5.4 Emergency Power Off ..........................107 5.5 Battery Use Statement ..........................107 6 Maintenance and Troubleshooting ..................109 6.1 System Power Down ............................
  • Page 11 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 1 Safety Description 1 Safety Description This chapter mainly introduces the safety announcements. Prior to performing any work on the device, please read the user manual carefully, follow the operation and installation instructions and observe all danger, warning and safety information.
  • Page 12 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 1 Safety Description User Manual  Non-compliance with the user manuals, installation guides and maintenance requirements and over-testing.  Unauthorized attempts to repair, adjustment or modify the product or change component.  Installation or use range beyond the provision specified in the related national standards.
  • Page 13 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 1 Safety Description After disconnect the input and output of the inverter, there still has residual energy in the storage capacitor, which may cause electric shock. Do not perform the maintenance until all power sources are switched off for 5 minutes.
  • Page 14 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 1 Safety Description User Manual Symbol Illustration WEEE designation  Do not dispose of the product together with the household waste but in accordance with the disposal regulations for electronic waste applicable at the installation site.
  • Page 15 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 1 Safety Description Figure1-1 Protective device  Dangerous high voltage is present in the device and accidental contact may result in a fatal shock hazard. Do not touch any terminals or parts of the device directly, with other conductors,...
  • Page 16 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 1 Safety Description User Manual  The surface temperature of the inverter may reach 75℃. During running, please don't touch the surface to avoid scald.  In case of fire, please use dry power fire extinguisher. If using liquid fire extinguisher, it may cause electric shock.
  • Page 17 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 1 Safety Description 1.3.2 ESD Protection To prevent human electrostatic damaging sensitive components (such as circuit board), make sure that you wear an anti-static wrist strap before touching sensitive components, and the other end is well grounded.
  • Page 18 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 1 Safety Description User Manual  Set warning marks where the switches are to avoid switching them on improperly.  Set warning signs or safety warning belt in the operation area, which is to avoid human injury or device damage.
  • Page 19 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 1 Safety Description 1.3.8 Operator Requirements The operation and wiring for inverter should be performed by qualified person, which is to ensure that the electrical connection meets the related standards. The professional technicist must be trained strictly, understand all safety announcements, master correct operations and meet the following requirements: ...
  • Page 20 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 1 Safety Description User Manual 1.4.3 Response to Emergency Situations The battery pack is a high-voltage system, if it fails, there is a high-voltage risk. Kehua company cannot guarantee the absolute safety of the battery pack, so you need to pay attention to the following...
  • Page 21 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 1 Safety Description 1.4.4 Safety Warning Label Setting In order to avoid accident for unwanted person gets close to the battery pack or makes improper operation, observe the following requirements while installing, maintaining or repairing.
  • Page 22 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 1 Safety Description User Manual 1.4.7 Operator Requirements The operation and wiring for battery pack should be performed by qualified person, which is to ensure that the electrical connection meets the related standards.
  • Page 23 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 2 Overview 2 Overview This chapter mainly introduces product intro, appearance, structure layout, size, heat dissipation illustration, application scenarios, working principle, etc. 2.1 Product Intro The inverter converts the DC energy from PV string into AC energy and then feedbacks to power grid, which is suitable for the commercial roof grid-tied system and large power station grid-tied system.
  • Page 24 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 2 Overview User Manual The inverter can be used with battery packs. Based on actual needs, 1 hybrid inverter can be used with 1~8 battery packs together as an energy storage system, as shown in Figure2-2.
  • Page 25 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 2 Overview 2.1.1 Model Meaning Hybrid inverter SPI □K-B X2 Second generation Isolation type Rated output power When it is 30, it means the rated output power is 30kW; When it is 40, it means the rated output power is 40kW;...
  • Page 26 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 2 Overview User Manual Grid-tied mode The inverter supplies power to the grid based on the set power. If the PV energy is insufficient, the battery discharges to the grid. When the PV energy is sufficient, the excess PV energy is used to charge the battery.
  • Page 27 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 2 Overview Item Battery full Battery not full Battery empty PV + grid or grid supply Battery discharges. When the battery energy is not power to load and battery sufficient, the grid supplies power to load.
  • Page 28 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 2 Overview User Manual Indicator Status Meaning Green indicator and red Inverter fault (not off-grid) indicator flash alternately. Red indicator is on. Inverter fault (off-grid) Red indicator flashes. DC has no input. Indicator is off.
  • Page 29 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 2 Overview 2.3 Structure Layout 2.3.1 Hybrid Inverter Figure2-8 Structure layout of hybrid inverter Table2-3 Structure layout illustration of hybrid inverter Mark Name Remarks ○ B+/B- Energy storage interface Connect battery.
  • Page 30 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 2 Overview User Manual  Before maintenance, the DC switch must be OFF for 5 minutes, and measure the voltage of inner DC busbar by multimeter, only when the voltage is less than 10V, the maintenance can be done.
  • Page 31 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 2 Overview Definition Illustration Reserved DRM5 DRM6 DI signal, reserved DRM7 DRM8/Input_I/O + DI signal or Italy frequency protection port, reserved RefGen/ Input_I/O - DRM0 DI signal, reserved 2.3.2 Battery Pack (Optional)
  • Page 32 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 2 Overview User Manual 2.4 Size The size of the hybrid inverter and battery pack (optional) is as shown in Figure2-11 and Figure2-12. Figure2-11 Size of hybrid inverter (unit: mm) Figure2-12 Size of battery pack (optional) (unit: mm) 2.5 Heat Dissipation Illustration...
  • Page 33 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 2 Overview Figure2-13 Heat dissipation diagram of hybrid inverter Figure2-14 Heat dissipation diagram of battery pack (optional) 2.6 Application Scenarios The SPI-B X2 series can be applied in grid-tied system, as shown in Figure2-15. Figure2-15 Grid-tied system...
  • Page 34 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 2 Overview User Manual 2.7 Work Principle PV strings are connected to inverter, and do the max. power point tracking for PV strings through the two-groups of MPPT circuits inside inverter, and then convert the DC power into the three-phase AC power through the inverter circuit.
  • Page 35 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation 3 Installation This chapter mainly introduces the inverter's installation, including installation process, installation preparation, transportation and unpacking, mechanical installation, electrical connection, check the installation, etc. 3.1 Installation Process Start...
  • Page 36 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual 3.2 Installation Preparation 3.2.1 Installation Tools Tools Leveling instrument Goggles Tape...
  • Page 37 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation Tools  The installation tools must be insulated to avoid electric shock.  When installing, please wear safety gloves and safety shoes.  When installing, please wear safety goggles and a dust mask to prevent dust from entering your eyes.
  • Page 38 The installation and operation for SPI-B X2 series should be accord with the local laws and regulations.  SPI-B X2 series should be installed at the place where out of the reach of children and away from living and working area. ...
  • Page 39 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation Figure3-3 Installation space (unit: mm) When selecting the battery packs, the installation space requirement is as shown in Figure3-4. Figure3-4 Installation space (select battery packs) (unit: mm)
  • Page 40 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual  The size in above figures is the minimum requirements for heat dissipation, for actual case, please take the space of installation and maintenance into account.  The installation space of SPI X2 series is the same. In Figure3-4, we take 1 hybrid inverter and 4 battery packs as an example to illustrate.
  • Page 41 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation 3.3.2 Unpacking and Checking Select the unpacking site in advance. In principle, the unpacking site should be as close to the installation site as possible. The device has been tested and checked strictly, but it still may be damaged during transporting, so, please check it carefully.
  • Page 42 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual Name Quantity Illustration AC output waterproof Waterproofing for the AC output connection of the cover inverter. Fix the AC output waterproof cover to the inverter Combination bolt with four combination bolts, fix the inverter to the (M5*16) installation holder with two combination bolts.
  • Page 43 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation Battery pack (optional) Figure3-7 Packing list of battery pack Table3-2 Battery pack packing list illustration Name Quantity Illustration Battery pack Right cover panel Cover panel on the right side of the battery pack...
  • Page 44 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual Name Quantity Illustration Screw (M5*12) For fixing wall bracket (b) Wall-mounted accessory 1 (optional) Figure3-8 Packing list of wall-mounted accessory 1 Table3-3 Wall-mounted accessory 1 packing list description Name...
  • Page 45 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation Table3-4 Battery pack accessory 1packing list illustration Name Quantity Illustration Base module 1 set Fix the battery pack on the floor. Connect the communication port on the bottom of the...
  • Page 46 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual Figure3-10 Packing list of battery pack accessory 2 Table3-5 Battery pack accessory 2 packing list illustration Name Quantity Illustration Base module 1 set Fix the battery pack on the floor.
  • Page 47 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation If the device needs to be stored for a long time after unpacking, it is necessary to pack the device by original package and save properly. 3.4 Mechaniacal Installation 3.4.1 Inverter Installation...
  • Page 48 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual When installation, please keep the installation holder horizontal and the installation holes aligned. The depth of drilled holes should be within 40mm. Clear the dust and measure the net depth. Ensure that the depth of three holes is the same.
  • Page 49 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation Step 5 Uplift the inverter and hang the inverter to the installation holder, as shown in Figure3-15. Do not loosen the inverter until the inverter has been hung in the installation holder completely.
  • Page 50 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual 3.4.2 Battery Pack Installation (Optional) The installation carrier for battery pack should be with a certain structural strength, such as cast-in-place reinforced concrete walls or brick structure walls, etc. For other special walls, corresponding strengthening measures should be taken according to the actual situation.
  • Page 51 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation Figure3-18 Push the assembled base module against the wall Ensure that the installed floor and wall are flat and horizontal (flatness within 4mm) and the installed floor horizontal angle is 0° . If not, please use gasket to make the floor and wall horizontal. The U gasket is used as follows.
  • Page 52 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual Figure3-21 Mark mounting holes Step 3 Remove the auxiliary tool and base module. Step 4 Drill holes and install expansion bolts according to the mark position, as shown in Figure3-22, corresponding size please see Figure3-22.
  • Page 53 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation  During drilling, please ware safety goggles and a dust mask to prevent dust from entering your eyes.  After drilling, please clean the scrap in the installation holes, and then perform the installation.
  • Page 54 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual Tear off the back glue of positioning board of support, as shown in Figure3-26. Figure3-26 Tear back glue Mark the mounting holes of support, as shown in Figure3-27. Figure3-27 Mark mounting holes Drill holes and install the expansion bolts M10, as shown in Figure3-28.
  • Page 55 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation Fasten the supports, as shown in Figure3-29. Figure3-29 Fasten the supports Assemble the base module by screws M5, as shown in Figure3-30. Figure3-30 Assemble the support and base Step 8 Install battery packs.
  • Page 56 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual Figure3-31 Fix the bottom battery pack with base module Fix the wall bracket (a) of bottom battery pack, as shown in Figure3-32. Figure3-32 Fix the wall bracket (a) Place the battery pack onto the lower battery pack, as shown in Figure3-33.
  • Page 57 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation Figure3-33 Place the battery pack While placing the battery pack, the bottom limit holes of the upper battery pack should match the screw on the top of the below battery pack.
  • Page 58 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual Figure3-34 Fix the battery pack If the quantity of battery pack ＞4, it needs to be installed in 2 piles, as shown in Figure3-37. The installation space requirements are as shown in Figure3-4. The installation method is the same.
  • Page 59 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation The color of the grounding wire should be in accordance with local regulations, with yellow-green as the default. Figure3-36 Battery pack quantity≤ 4 wiring method In above figure, we take 1 inverter +4 battery packs as an example to illustrate. The wiring of other...
  • Page 60 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual Figure3-37 Battery pack quantity＞ 4 wiring method...
  • Page 61 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation  During wiring, please ensure that the inverter is power off, and the voltage between other ports to BAT+ and BAT- should be lower than 36V.  While connecting the inner wires of system, it is necessary to make the handle on the battery pack vertical to the side, and lead the battery power wires (+/-) and BMS communication wires go through the handle, and then connect them.
  • Page 62 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual Item Wire cross-sectional area (mm American standard AC output wire AWG8 Grounding wire AWG8  The wires in above table are based on UL copper wire. If other wires are used, please replace them according to the standard.
  • Page 63 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation Figure3-39 External grounding connection  In order to improve the anti-corrosion performance of the external grounding terminal, it is recommended to paint anti-rust paint on the external grounding terminal after finishing the external grounding connection.
  • Page 64 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual 3.5.3 PV String Input Connection  When installing, use the equipped DC terminals and PV connectors to avoid inverter damage.  Switch off the DC switch before connecting the PV string.
  • Page 65 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation  Considering the local ultimate low temperature condition of the project and the temperature factor of PV string, it is recommended that the string operation voltage should be kept at the rated...
  • Page 66 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual Step 2 Loosen the lock nuts of the positive and negative connectors, draw the PV sting input positive and negative wires through the corresponding lock nuts, and crimp the PV sting input positive wire and negative wire to the positive and negative metal terminals respectively, and then check whether the positive and negative wires are crimped firmly, as shown in Figure3-42.
  • Page 67 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation The two groups of PV strings that connected with PV1 or PV2 have been parallel connected in the inner of the inverter. Do not reverse connect the PV string, or it will cause the PV string or inverter damage permanently.
  • Page 68 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual Figure3-47 PV connector installation method ----End 3.5.4 AC Output Connection  It's forbidden that several inverters share an AC switch.  It's forbidden to connect with load between inverter and the AC switch.
  • Page 69 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation During wiring, please pay attention to distinguish the AC live wire, neutral wire and grounding wire. Step 1 Strip the external insulation layer of AC wire for about 100mm, strip the inner lead insulation layer for about 15mm, as shown in Figure3-48.
  • Page 70 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual Figure3-50 Fasten the AC output waterproof cover When several inverters are parallel connected, it needs to equip the switch with impact tripping function at the rear end of the AC output of the inverter.
  • Page 71 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation When installing the WIF/4G (optional) stick, pay attention to the limiting position, and don't wrongly insert it. When tightening, do not use excessive force (torque: 1.5~2.0N· m), so as not to damage the interface.
  • Page 72 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual 3.5.6 COM. Communication Connection COM. communication interface can be set to DRM or RS485 or CAN communication interface. DRM communication interface DRM communication interface is used to connect with the DRM controlling device.
  • Page 73 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation Figure3-54 Connection diagram between smart meter 2 (DTSU666) and inverter and grid When using the zero-export function, the following setting must be done: Set the Zero-export function in “Settings-Scheduling Setting” to enable through WiseSolar Plus.
  • Page 74 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual Illustration Connect to AC OUTPUT phase-U of the inverter and phase-U of grid. Connect to AC OUTPUT phase-V of the inverter and phase-V of grid. Connect to AC OUTPUT phase-W of the inverter and phase-W of grid.
  • Page 75 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation Connection procedures Step 1 Strip the insulation layer of the battery communication wire and smart meter communication wire by wire stripper for about 4.5mm, loosen the lock nut of the COM. connector, pull out the connection head of the COM.
  • Page 76 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual Figure3-56 COM. communication wire connection ----End 3.5.7 Energy Storage Connection (Applicable When Selecting Battery Packs)  When installing, use the equipped terminals and connectors to avoid inverter damage. ...
  • Page 77 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation The power wires at the inverter side use the energy storage connectors and terminals in the accessories. There are two types of the energy storage connectors: positive connector and negative connector, which respectively use positive metal terminal and negative metal terminal.
  • Page 78 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual Figure3-60 Tighten the lock nut Step 5 If the polarity is correct, insert the positive and negative energy storage connectors of power wires into the "B+" and "B-" terminals at the bottom of the inverter. When you hear a click, it means the connection is good (as shown in Figure3-62).
  • Page 79 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation Figure3-62 Energy storage connector installation method 3.6 Check the Installation Check items The inverter is installed correctly and is securely fixed. The battery packs (optional) is installed correctly and is securely fixed.
  • Page 80 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 3 Installation User Manual 3.7 Install Side Cover Panel (Applicable When Selecting Battery Packs) After wiring connection, place both hands on the upper and lower sides of the side cover panels, and gently push the panels to ensure they are securely fixed to the battery packs, as shown in Figure3-63.
  • Page 81 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 3 Installation Figure3-63 Install side cover panels of battery packs ----End...
  • Page 82 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 4 APP Operation User Manual 4 APP Operation This chapter mainly introduces the operation of APP. 4.1 First Startup Step 1 Scan the QR code to download the APP and view the quick start guide.
  • Page 83 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 4 APP Operation Figure4-1 Login page Step 4 Build plant: After entering the main page, it will show the prompting No plant. Go and create a new one to build a new plant, as shown in Figure4-2.
  • Page 84 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 4 APP Operation User Manual Step 5 After entering corresponding information, tap Next button at the bottom of the page, it will turn to scan QR code page. Refer to Step 6-Step 8 to add devices and perform device networking. If you tap the Save button on the upper right corner at this time, it will directly skip to the second note of Step 6, please refer to the following content to add devices.
  • Page 85 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 4 APP Operation Figure4-5 Enter corresponding information (selecting the battery packs)  The item with “*" is required.  Plant type is used to select the device type. When not selecting the battery packs, it must select PV plant, as shown in Figure4-3 (selecting smart meter) and Figure4-4 (not selecting smart meter).
  • Page 86 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 4 APP Operation User Manual Indicator Color Status  Flash (blue indicator): connect a cloud platform normally.  On (blue indicator): connection two cloud platform normally.  Off (blue indicator): cloud platform connection is abnormal.
  • Page 87 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 4 APP Operation  When the surrounding is dark, please tap the Light On button at the bottom to start the flashlight to enhance the brightness.  If there is a problem with the Wi-Fi connection, please refer to 6.3 Troubleshooting.
  • Page 88 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 4 APP Operation User Manual Figure4-8 Selecting devices to network Figure4-9 Connecting available networks...
  • Page 89 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 4 APP Operation Figure4-10 Device networking After the configuration is completed, you need to switch the cell phone network to ensure that the cell phone can access the internet normally. Users can view device information directly through the cloud platform.
  • Page 90 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 4 APP Operation User Manual Figure4-12 Plant details page (not selecting battery packs and smart meter) Figure4-13 Plant details page (selecting battery pack) 4.2 Change Network Configuration If it has already connected the logger to the network, network configuration is unnecessary. If it needs...
  • Page 91 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 4 APP Operation Step 1 Tap the right bottom icon in the main page, then tap Connect to device, and then tap Wi-Fi icon, it will show the tips. Tap Confirm button, it will turn to Wi-Fi list. Select the Wi-Fi whose name is the same as that of Wi-Fi module, and then enter the default password: admin12345678, the Wi-Fi module will be connected, as shown in Figure4-14.
  • Page 92 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 4 APP Operation User Manual  If the prompting "There is no protocol available" is showed while settings, please tap the button at the top right corner, and select Protocol update, and wait for the protocol update to be completed, as shown in Figure4-15.
  • Page 93 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 4 APP Operation Figure4-17 Configure Wi-Fi During the initial network configuration, it is recommended to ask operation and maintenance personnel for help. Step 4 Back to main page, the device status turns to online from offline, as shown in Figure4-18.
  • Page 94 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 4 APP Operation User Manual When the logger is offline for a long time, it may cause loss of energy data. ----End 4.3 Inverter Information Query Step 1 In the main page, tap the icon to enter the device list page, as shown in Figure4-19.
  • Page 95 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 4 APP Operation Figure4-20 Device detail (not selecting battery pack) Figure4-21 Device detail (selecting battery pack) Step 3 Tap the items below to view more info, such as electricity statistics，work mode，battery info, self-consumption，zero-export function, battery protection and general info settings.
  • Page 96 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 4 APP Operation User Manual 4.4 Electricity Statistics In the Electricity Statistics item, you can view the daily generation data, as shown in Figure4-22. Figure4-22 Electricity statistics page At the bottom of the page, you will view the weekly, monthly, yearly and total generation data, as...
  • Page 97 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 4 APP Operation Figure4-23 Weekly /Monthly /Yearly /Total generation data 4.5 Battery Info (Applicable When Selecting Battery Packs) In the Battery Info item, you can view the Battery Overview containing Day charged, Day discharged, Total charged and Total discharged.
  • Page 98 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 4 APP Operation User Manual 4.6 Self-consumption (Applicable When Selecting Battery Packs) In the Self-consumption item, you can view the self-consumption rate and self-supply rate, as shown in Figure4-25.  Self-consumption rate means the rate of load energy coming from solar to the total energy of solar.
  • Page 99 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 4 APP Operation Figure4-26 Zero-export function page 4.8 Battery Protection In the Battery protection item, you can set end of discharge SOC (%), as shown in Figure4-27. Figure4-27 Battery protection page...
  • Page 100 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 4 APP Operation User Manual 4.9 General Info In the Inverter page, tap General info icon to query info, as shown in Figure4-28. Figure4-28 General info 4.9.1 General Info Grid info In the Grid Info item, you can view daily grid-tied energy, grid frequency, apparent power, active...
  • Page 101 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 4 APP Operation Figure4-29 Grid info page Battery info In the Battery Info item, you can view the battery total power, day battery charged, day battery discharged and battery SOC, as shown in Figure4-30.
  • Page 102 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 4 APP Operation User Manual Load info In the Load Info item, you can view load power and daily load energy consumed, as shown in Figure4-31. Figure4-31 Load info page Device info In the Device Info item, you can view the device model, HMI software version, S/N, control software...
  • Page 103 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 4 APP Operation Figure4-32 Device info page Battery pack 1~3 info In corresponding Battery pack 1 (2 to 8 ) info page, you can view the battery pack 1 (2 to 8 ) S/N, battery pack 1 (2 to 8 ) total charge/discharge, etc., as shown in Figure4-33.
  • Page 104 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 4 APP Operation User Manual 4.9.2 Status Data The Status data page includes device status, device info and battery pack 1 info, as shown in Figure4-34. Figure4-34 Status data page 4.10 Control The following settings options are available only to the operation and maintenance privilege and are not displayed in user privilege.
  • Page 105 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 4 APP Operation Figure4-35 Details page During settings, if a password is required, use the same password as the login. 4.10.1 Grid Settings In the Grid settings page, you can set the grid level Ⅰ under-voltage protection value, grid level Ⅰ...
  • Page 106 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 4 APP Operation User Manual Figure4-36 Grid settings page Table4-2 Grid settings illustration Item Illustration Grid level I under-voltage The min. grid voltage available protection value(%) Grid level I over-voltage The max. grid voltage available...
  • Page 107 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 4 APP Operation Item Illustration Grid level I over-frequency Operating frequency available in grid level I over-frequency protection value settings Grid level I under-frequency Operating time available in grid level I under-frequency...
  • Page 108 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 4 APP Operation User Manual Item Illustration Active islanding This item is used to select whether to enable the active islanding Insulation impedance Used to detect the PV array-to-ground impedance. detection Night SVG Provides reactive power when there is no PV generation at night.
  • Page 109 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 4 APP Operation Figure4-38 Battery settings page 4.10.4 System Settings In the System settings page, you can view the auto-start when power on, grid abnormal auto-recovery, phase sequence self-adaptation, restore factory settings, standard type, residual current protection disabled, etc., as shown Figure4-39.
  • Page 110 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 4 APP Operation User Manual 4.10.5 Schedule Settings In the Schedule settings page, the active power control mode, active power, reactive power control mode, reactive power, power factor, etc. can be set, as shown Figure4-40.
  • Page 111 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 4 APP Operation Item Illustration This item is valid when Reactive power control mode is set to Reactive power (P.U.) (%) scheduling by PU. It can be used to set the reactive power of system.
  • Page 112 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 4 APP Operation User Manual 4.10.7 Other Settings In the Other Settings page, group zero-export RS485 communication address, authority password, power on password, probation password, group zero-export RS485 baud rate, etc. can be set, as shown in Figure4-42.
  • Page 113 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 4 APP Operation Figure4-43 Work mode 4.11.1 Self-consumption Mode In this mode, the PV power generation is supplied to load, and the remaining power is used to charge battery or supply to grid.
  • Page 114 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 4 APP Operation User Manual Figure4-45 Grid-tied mode page...
  • Page 115 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 5 Startup and Shutdown 5 Startup and Shutdown This chapter mainly introduces how to start and shut down the inverter. 5.1 Check Before Startup Before starting inverter at the first time, please check the following items.
  • Page 116 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 5 Startup and Shutdown User Manual consumption, according to 4.11 Work Mode) and then perform the startup operation on the basis of actual condition. If PV>180V, select " " in the inverter page of APP to start the system.
  • Page 117 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 5 Startup and Shutdown 5.4 Emergency Power Off Step 1 Switch off the switch between the inverter and the grid. Step 2 Switch off the switch between the PV and the inverter.
  • Page 118 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 5 Startup and Shutdown User Manual  When the SOC shows 0% and the indicator on battery pack is on, if the battery pack is not charged in time, it will turn to under-voltage status for over-discharge, what's more, the battery...
  • Page 119 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 6 Maintenance and Troubleshooting 6 Maintenance and Troubleshooting This chapter mainly introduces the maintenance and troubleshooting. 6.1 System Power Down The system power down procedure is as follows. Step 1 Power off the inverter on the APP.
  • Page 120 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 6 Maintenance and Troubleshooting User Manual During running, do not touch the inverter. The temperature of some parts on the inverter is too high, and may cause scald injury. After shut down the inverter and wait until it cooling down, then do the maintenance and clean.
  • Page 121 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 6 Maintenance and Troubleshooting Check Item Acceptance Criteria Maintenance Interval The inverter and battery pack operate with no abnormal sound. Product running All parameters of the inverter and battery Semiannually status pack are correctly set.
  • Page 122 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 6 Maintenance and Troubleshooting User Manual Figure6-1 Dismantle the cover plate Step 6 Disconnect the connector connected with fan, as shown in Figure6-2. Figure6-2 Disconnect the connector Step 7 Loosen the screws that fixed the fan and take out fans, as shown in Figure6-3.
  • Page 123 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 6 Maintenance and Troubleshooting ----End 6.3 Troubleshooting The inverter is designed on the basis of the grid-tied operation standards and meets the requirements of safety and EMC. Before provided to client, the inverter has been experienced for several rigorous tests to ensure reliable and optimizing operation.
  • Page 124 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 6 Maintenance and Troubleshooting User Manual Check item Fault description Solution and the meter does not the meter model is selected incorrectly. communicate correctly. Check whether a non-compatible third-party meter is used. Check whether the meter is powered on. If yes, check whether the meter display is lit up.
  • Page 125 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 6 Maintenance and Troubleshooting Check item Fault description Solution range of SPI X2, if so, contact the operator to adjust the protection thresholds, if not, contact the local power company. If the alarm persists, please check whether the wiring on the grid side is abnormal after the system is powered down (refer to 5.3...
  • Page 126 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 6 Maintenance and Troubleshooting User Manual Check item Fault description Solution Check the insulation resistance of the positive and negative poles of the PV string to the ground. Residual current Residual current Check whether the environment around the...
  • Page 127 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 6 Maintenance and Troubleshooting Check item Fault description Solution center. 1. Check whether the input voltage of PV1, PV2, PV3 exceed 1000V. The voltage of MPPT x 2. If the fault persists, please try to reduce the...
  • Page 128 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 6 Maintenance and Troubleshooting User Manual Check item Fault description Solution service center. Please check the PV connections after the system is powered down (refer to 5.3 Shutdown). The equipment will continuously monitor external conditions, and if it occurs 5 faults within 24 hours, it will not be able to recover automatically.
  • Page 129 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 6 Maintenance and Troubleshooting Table6-3 Battery fault description Check item Fault description Solution The system will monitor the battery status in real Battery over-voltage Battery over-voltage time. If the fault persists for 24 hours, please contact your local agency or service center.
  • Page 130 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 6 Maintenance and Troubleshooting User Manual Check item Fault description Solution weather. 2. Test impedance of ground to device by multimeter, if the impedance is not close to 0, there is a problem with the device wiring and ground wiring.
  • Page 131 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 6 Maintenance and Troubleshooting Check item Fault description Solution Check the temperature, if the temperature is too high, try to reduce the ambient temperature. Make sure to install the device according to...
  • Page 132 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 7 Stop Running, Dismantle, Discard & Recycle Device User Manual 7 Stop Running, Dismantle, Discard & Recycle Device This chapter introduces the dispose way for stop running, dismantling, discarding and recycling the device 7.1 Stop Running Inverter...
  • Page 133 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 7 Stop Running, Dismantle, Discard & Recycle Device ----End 7.2 Dismantle the Inverter After the connection among inverter and grid and PV string is completely disconnected and wait for 5mins at least, ensure that the inner capacitor discharge completely and check that there is no voltage and current in the inverter by the detection equipment, and then the inverter can be dismantled.
  • Page 134 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 7 Stop Running, Dismantle, Discard & Recycle Device User Manual  Do not dispose of batteries directly.  There may be a fee required from the user during the recycling process of the battery pack.
  • Page 135 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 7 Stop Running, Dismantle, Discard & Recycle Device Figure7-3 Dismantle the copper bar and disconnect the power wires Step 3 Disconnect the communication wires of the battery module, dismantle the BMU plate, and then remove the cable ties on the bottom of the BMU plate with the diagonal pliers.
  • Page 136 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 7 Stop Running, Dismantle, Discard & Recycle Device User Manual Figure7-6 Dismantle the side heat sink Step 6 Dismantle the rear heat sink. Figure7-7 Dismantle the rear heat sink Step 7 Disconnect the remaining wires inside the battery pack.
  • Page 137 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual 8 Package, Transportation, Storage 8 Package, Transportation, Storage This chapter mainly introduces the package, transportation and storage. 8.1 Package The package of product is carton. When packing, pay attention to the placing direction requirements.
  • Page 138 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) 8 Package, Transportation, Storage User Manual 2. Battery storage temperature requirement: short-term (with one month) storage in a clean and ventilated room at -20℃~50℃, long-term (within one year) in a clean and ventilated room at 0℃...
  • Page 139 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual A Technical Specifications Technical Specifications A.1 SPI-B X2 Series (30K-40K) Model SPI30K-B X2 SPI33K-B X2 SPI36K-B X2 SPI40K-B X2 Item DC input Max. input power (kW) 40.5 44.55 48.6 Max. PV array open circuit...
  • Page 140 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) A Technical Specifications User Manual Model SPI30K-B X2 SPI33K-B X2 SPI36K-B X2 SPI40K-B X2 Item Max. output current (A) 47.6 52.4 57.2 57.7 Rated grid frequency (Hz) 50/60 Grid frequency range (Hz) 45-55/55-65 Power factor (rated power) >0.99...
  • Page 141 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual A Technical Specifications Model SPI30K-B X2 SPI33K-B X2 SPI36K-B X2 SPI40K-B X2 Item Isolation method No transformer Degree of protection IP66 Self-consumption at night <1W -35~60℃ (>40℃ derating) Operating temperature range...
  • Page 142 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) A Technical Specifications User Manual Model iStoragEB5-S2 Item Max. input voltage (V) 1000 Input voltage range (V) 650~900 Voltage range with full load (V) 650-800 Max. charge current (A) 6.15 Max. discharge current (A) 6.15/7.38 (10s)
  • Page 143 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) User Manual B Acronyms and Abbreviations Acronyms and Abbreviations Alternating Current Direct Current Liquid Crystal Display Light-emitting Diode MPPT Maximum Power Point Tracking Protective Earthing Photovoltaic...
  • Page 144 PV Grid-tied Inverter SPI-B X2 Series (30K-40K) B Acronyms and Abbreviations User Manual RS485 Recommend Standard485...
  • Page 145 4402-04049 008...

This manual is also suitable for:

Spi30k-b x2Spi33k-b x2Spi36k-b x2Spi40k-b x2