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RUiXU RX Series User Manual

Hybrid solar inverter
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RX series
RX
Series
HYBRID SOLAR INVERTER
USER MANUAL
RX-5K, RX-7.6K, RX-9.6K, RX-12K
1

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Summary of Contents for RUiXU RX Series

  • Page 1 RX series Series HYBRID SOLAR INVERTER USER MANUAL RX-5K, RX-7.6K, RX-9.6K, RX-12K...
  • Page 2 We make constant improvements on the products and their documentation. This manual is subject to change without notice; these changes will be incorporated in new editions of the publication. To access the latest documentation, visit the Ruixu website https://www.ruixubattery.com...

  • Page 3: Table Of Contents

    RX series TABLE OF CONTENTS 1. SAFETY PRECAUTIONS ..........................................1 1.1. About This Document ....................................2 1.1.1. Overview ......................................... 2 1.1.2. Target audience ......................................2 1.2. Safety ..........................................2 1.2.1. Safety Levels ........................................2 1.2.2. Symbol Explanation ..................................... 3 1.2.3. Safety Instructions ....................................... 4 1.3.
  • Page 4 RX series 4. Installation ............................................... 21 4.1. Precautions ......................................... 22 4.2. Checking the System Topology Diagram ............................22 4.3. Determining the Installation Site ................................24 4.3.1. Installation Environment Requirements ............................24 4.3.2. Installation Location Requirements .............................. 24 4.4. Preparing Installation Tools ..................................26 4.5.
  • Page 5 RX series 6.2. Shutdown ........................................51 7. Commissioning ..............................................52 7.1. Downloading the App ....................................53 7.2. Logging Into the App ....................................53 7.3. Performing the Initialization Settings ..............................55 7.4. Configuring the Communication Module ............................63 7.5. Creating a Plant ......................................64 8.

  • Page 6: Safety Precautions

    RX series SAFETY PRECAUTIONS...

  • Page 7: About This Document

    Failure to follow any of the instructions or warnings in this document can result in device damage, potentially rendering it inoperable; or even causes electrical shock, serious injury, or death. Ruixu shall take no responsibility for any personal injuries or property damage caused by improper use.

  • Page 8: Symbol Explanation

    RX series CAUTION Indicates a hazardous condition which, if not avoided, can result in minor or moderate injury. NOTICE Indicates a situation that can result in potential damage, if not avoided. 1.2.2. Symbol Explanation Symbol Description Danger: Electrical shock hazard This device is directly connected to public grid, thus all work to the battery shall only be carried out by qualified personnel.

  • Page 9: Safety Instructions

    • Before opening the housing, the Ruixu inverter must be disconnected from the grid and PV generator; you must wait for at least five minutes to let the energy storage capacitors completely discharge after disconnecting from power source.

  • Page 10: Safe Handling

    WARNING • Any unauthorized actions including modification of product functionality of any form may cause lethal hazard to the operator, third parties, the units or their property. Ruixu is not responsible for the loss and these warranty claims. • Do not touch non-insulated parts or cables.
  • Page 11 RX series...

  • Page 12: Product Information

    RX series PRODUCT INFORMATION...

  • Page 13: General Introduction

    RX series 2.1. General Introduction The RX series low-voltage inverter is a transformer-less hybrid solar inverter, which is a key component of a complete energy storage system. The inverter contains maximum power point tracking (MPPT), battery charging/discharging circuit and full-bridge inverting circuit. It converts solar power to grid-compliant AC power for home loads and sell extra power to the grid.

  • Page 14: Model Description

    RX series 2.2.2. Model Description K: Rated power. For example, 5K indicates the rated power of the inverter is 5 kW. 2.3. Package Contents Place the connectors separately after unpacking to avoid confusion for connection of cables. Inverter *1 Mounting plate *1...

  • Page 15: Dimension

    RX series 2.4. Dimension Dimension (H*W*D): 810*470*247 mm (31.89*18.504*9.724 inch) 470 mm (18.504") 247 mm (9.724") Figure 2.1. RX inverter dimension...

  • Page 16: Knockout Holes, Switch, And Button

    RX series 2.5. Knockout holes, switch, and button Figure 2.2. Knockout holes, switch, and button Callout Silkscreen Description DC Switch DC switch 4G/WIFI For connecting the communication module For connecting PV cables For connecting communication cables BATTERY For connecting battery cables...
  • Page 17 RX series Table 2.1. Description of the knockout holes, switch, and button Knockout hole Dimension Knockout hole Dimension φ50.3 mm (φ1.98") 4G/WIFI φ34.5mm (φ1.358") BATTERT φ50.3 mm (φ1.98") LOAD φ50.3 mm (φ1.98") φ50.3 mm (φ1.98") GRID φ50.3 mm (φ1.98")

  • Page 18: Electrical Terminals

    RX series 2.6. Electrical Terminals Figure 2.3. Electrical terminals in the junction box Callout Description Callout Description PV1 – PV4 BAT (BAT+ and BAT-) PE (L1 and L2) LOAD (L1 and L2) GRID (L1 and L2)

  • Page 19: Led Indicators

    RX series 2.7. LED Indicators Figure 2.4. LED indicators LED indicator Status Description The inverter is powered off. Breathing 6s The inverter is in initialization or standby state. Solid on The inverter is working properly. Breathing 6s The inverter is upgrading.
  • Page 20 RX series On 1s, off 3s No electricity is imported from or exported to the grid. The inverter is disconnected from the grid. Solid on The battery is in discharging status. On 1s, off 1s The battery is in charging status.

  • Page 21: Datasheet

    RX series 2.8. Datasheet Model RX-5K RX-7.6K RX-9.6K RX-12K PV String Input Max PV Array Power [Wp]@STC 7500 11400 14400 17100 Max DC Voltage[V] MPPT Voltage Range[V] 90–510 Nominal DC Voltage[V] Start Voltage/Min Input Voltage[V] Min Input Voltage[V] Max Input Current[A]...
  • Page 22 RX series Model RX-5K RX-7.6K RX-9.6K RX-12K AC Output [Back-up Mode] Rated AC Power [W]@208 V AC 4330 6580 8320 9880 Rated Apparent Power 5000 7600 9600 11400 [VA]@240 V AC Rated AC Current [A]@208/240 20.8 31.7 47.5 V AC Peak output power（VA, 1min）...
  • Page 23 RX series Model RX-5K RX-7.6K RX-9.6K RX-12K AC grounding detection Integrated DC surge protection Type II AC surge protection Type II Island protection monitoring Integrated AFCI Integrated Integrated Interface Display LED/App (via Bluetooth) Communication Port RS485/Wi-Fi/CAN Communication Wi-Fi/4G (Optional) Load Monitor...

  • Page 24: Transportation And Storage

    RX series TRANSPORTATION AND STORAGE...

  • Page 25: Transportation

    RX series 3.1. Transportation DANGER Load or unload batteries with caution. Otherwise, the batteries may be short-circuited or damaged (such as leakage and crack), catch fire, or explode. ⚫ Batteries have passed the test of UN38.3. This product meets the transportation requirements for dangerous goods for lithium batteries.

  • Page 26: Installation

    RX series INSTALLATION...

  • Page 27: Precautions

    RX series 4.1. Precautions For safety, be sure to read all the safety instructions carefully prior to any works and observe the appropriate rules and regulations of the country or region where you installed the energy storage system. DANGER •...
  • Page 28 RX series The following installation examples should be avoided. Any damage caused will not be covered by the warranty policy. PV array Battery Single battery bank can not be connected to multiple inverters. Single PV string can not be connected to multiple inverters.

  • Page 29: Determining The Installation Site

    RX series 4.3. Determining the Installation Site Read the following sections to cautiously determine the installation site. The safety regulations vary in different countries and regions. Follow local safety regulations. 4.3.1. Installation Environment Requirements Keep away from sunlight Keep dry...
  • Page 30 RX series 15° × √ √ × × Figure 4.2. Installation limitations ⚫ Choose a solid and smooth wall to ensure that the inverter can be installed securely on the wall. Make sure that the wall can bear the weight of the inverter and accessories.

  • Page 31: Preparing Installation Tools

    RX series 4.4. Preparing Installation Tools The tools illustrations are for your reference. Installation tools include but are not limited to the following recommended ones. Use other auxiliary tools based on site requirements. Multimeter Measurement Utility knife Marker Measuring tape...

  • Page 32: Unpacking

    4.5. Unpacking 4.5.1. Checking the Outer Packing Although Ruixu’s products have thoroughly tested and checked before delivery, there is possibility that the products may suffer damages during transportation. Check the outer packing package for any damage, such as holes and cracks.
  • Page 33 RX series Figure 4.5. Eight holes for installing the mounting bracket...
  • Page 34 RX series Step 2. Insert six M6*50 screws to secure the mounting plate to the wall. Figure 4.6. Inserting eight expansion tubes into the holes...

  • Page 35: Installing The Battery

    RX series Step 3. Mount the inverter onto the mounting plate. Insert two M6*50 screws (1.2-1.5 N· m) on each bottom side of the inverter to secure it to the wall. Figure 4.7. Securing the bottom locking brackets 4.7. Installing the Battery For details, refer to the battery user manual.

  • Page 36: Electrical Connection

    RX series ELECTRICAL CONNECTION...

  • Page 37: Safety Instructions

    RX series 5.1. Safety Instructions Electrical connection must only be operated on by professional technicians. Operators must be aware that the inverter is a bi-power supply equipment. Before connection, necessary protective equipment must be employed by technicians including insulating gloves, insulating shoes, and safety helmet.
  • Page 38 RX series Procedure Step 1. Assemble the cable and OT/DT terminal. Figure 5.1. Preparing the grounding cable Heat shrink tube OT/DT terminal Step 2. Loosen the screw and connect the grounding cable. Figure 5.2. Connecting the grounding cable...

  • Page 39: Opening The Junction Box Of The Inverter

    RX series 5.3. Opening the Junction Box of the Inverter Step 1. Use the provided key to open the two locks on the right side of the inverter. Then, lift the cover upwardsleftwards. Figure 5.1. Opening the junction box Step 2. Remove four screws to unlock the internal plastic plate. Remove the plate outwards.

  • Page 40: Assembling The Ac-Side Electrical Connection

    RX series 5.4. Assembling the AC-side Electrical Connection About this task For safety operation and regulation compliance, a circuit breaker is required to be installed between the grid and the inverter. Figure 5.2. AC grid Choose the breaker and cables according to the following table.
  • Page 41 RX series WARNING • Risk of personal injury due to electric shock! • Ensure that the equipment is powered off before performing wiring operations. • Improper wiring of AC conductors will result in risk of electrical failure or equipment damage. Please ensure that all connections are made correctly in accordance with the instructions in this document and in accordance with local wiring codes and regulations before applying power to the unit.
  • Page 42 RX series Step 2. Use a flathead tool to remove the knockout hole fillers. (Inserting into the hole and anti-clock rotation) Figure 5.4. Removing the knockout hole fillers...
  • Page 43 RX series Step 3. According to the silkscreens, insert the grid cables through the corresponding conduits and insert them to corresponding terminals L1, L2, L3, N, and PE. Then, use a standard torque to tighten the screws on the terminals to secure the cable connection.

  • Page 44: Connecting The Battery To The Inverter

    RX series Figure 5.6. Connecting the load cables Figure 5.7. Connecting the generator cables 5.5. Connecting the Battery to the Inverter About this task • For battery details, refer to its product documentation. • Some utility company or electrical regulation may require a battery isolator to be installed near the inverter.
  • Page 45 RX series Cable Recommended cable Recommended torque BAT+, BAT- 1/0 AWG 80 LB-IN (9. N·m) If needed, you can put a terminal on the cable end, as shown below. Terminal Cable Figure 5.8. Putting terminals on the cable ends Step 4. Insert the cables through the conduit and connect it to the battery terminals in the junction box.

  • Page 46: Assembling The Pv-Side Electrical Connection

    RX series 5.6. Assembling the PV-side Electrical Connection Step 1. Strip off the insulation (20-mm/0.79-inch length) of the cable ends. User cable ferrules if the cable is of multi-strand type. Cable Recommended cable PV+, PV- 12 AWG NOTICE • Connect the positive connector to the positive side of the solar panels and connect the negative connector to the negative side of the solar side.
  • Page 47 RX series Step 3. Insert the PV cables through the conduit and connect them to the PV terminals in the junction box. Figure 5.11. Connecting the cables to PV1 and PV2 Figure 5.12. Connecting the cables to PV3 and PV4...

  • Page 48: Assembling The Communication Connection

    RX series 5.7. Assembling the Communication Connection 5.7.1. Installing the Communication Module About this task An RS232 USB communication port is provided at the bottom of the junction box. This port is used to connect the communication module such as Wi-Fi module, AIO3 module, etc.

  • Page 49: Connecting The Communication Cables

    RX series Figure 5.13. Connecting the communication module 5.7.2. Connecting the Communication Cables Step 1. Prepare communication cables according to the pins shown as below. Then, insert the prepared communication cable through the BATTERY conduit. Connect the CAN1 port on the BMS to the BMS_CAN port on the inverter.

  • Page 50: Closing The Junction Box Of The Inverter

    5.10. Connecting the Smart Meter To buy a smart meter, contact Ruixu for more details. By using a Ruixu-recommended smart meter, many functions can be implemented, such as the export limitation function. Connect the smart meter as shown in section 5.11.2 “Connection Topology Diagrams”.

  • Page 51: System Connection Overview

    RX series 5.11. System Connection Overview 5.11.1. Connection Structure GRID BACKUP BMS_CAN RJ45 Figure 5.16. With a generator...

  • Page 52: Connection Topology Diagrams

    RX series GRID GRID BACKUP Load BMS_CAN RJ45 Figure 5.17. Without a generator 5.11.2. Connection Topology Diagrams...
  • Page 53 RX series Figure 5.18. Single-phase...
  • Page 54 RX series Figure 5.19. Split-phase...

  • Page 55: Startup And Shutdown

    RX series STARTUP AND SHUTDOWN...

  • Page 56: Startup

    RX series 6.1. Startup Step 1. Open the breaker on the grid side. Step 2. Turn on the battery switch. Step 3. Turn on DC SWITCH. Figure 6.1. DC switch on the left side of the inverter Step 4. Check the LED indicator status on the inverter panel to ensure that the inverter is running properly.

  • Page 57: Commissioning

    RX series COMMISSIONING...

  • Page 58: Downloading The App

    RX series 7.1. Downloading the App The Elekeeper App can be used for both nearby and remote monitoring. Depending on the communication module used, it supports Bluetooth/4G or Bluetooth/Wi-Fi to communicate with your energy storage system (ESS). On your mobile phone, search for “Elekeeper” in the App store and download the App.
  • Page 59 RX series To apply for a new account, perform as follows: Tap the three-dot icon on the top right corner. Choose the language and network node based on your needs. Tap Register. Choose whether you are an owner or an installer or distributor.

  • Page 60: Performing The Initialization Settings

    RX series 7.3. Performing the Initialization Settings Prerequisite The Bluetooth function on your mobile phone is enabled. Procedure On the Service interface, select Remote Configuration. Tap Bluetooth and then Next. Tap your inverter according to the inverter serial number (SN).
  • Page 61 RX series Complete the initialization settings by following the instructions on the screen. Parallel connection settings Example: Configuration Corresponding parallel mode Multiple inverter + batteries (parallelling) Storage on-grid parallel One inverter + batteries + solar inverter PV on-grid parallel (AC-coupling)
  • Page 62 RX series Battery brand and settings Example:...
  • Page 63 RX series Meter and system schematic Examples of three different settings:...
  • Page 64 RX series Export limitation settings Example: Note: Based on the requirements in section 3.3.4.3 “Power rate limit modes” of AS/NZS 4777.2: 2020, the inverter power rate limit (WGra) is set to 16.67% Pn per minute by default. If you need to change the default value, set a value (unit W) based on your needs.
  • Page 65 RX series Working mode Example of Self-Consumption Mode:...
  • Page 66 RX series Country and grid compliance Example:...
  • Page 67 RX series Initialization completion After the initialization is completed, you can view the detailed device information on the displayed Device Info page.

  • Page 68: Configuring The Communication Module

    RX series 7.4. Configuring the Communication Module About this task If you want to remotely monitor the energy storage system and view the device statistics (for example, when you are away from home), connect the communication module installed on the inverter to the network.

  • Page 69: Creating A Plant

    RX series 7.5. Creating a Plant On the Management page, tap the icon on the top right corner. Select Create Plant for Owner.
  • Page 70 RX series Apply for an account for the end user.
  • Page 71 RX series Configure the plant details.
  • Page 72 RX series...

  • Page 73: Troubleshooting

    RX series TROUBLESHOOTING...
  • Page 74 RX series For any errors reported as below, contact the after-sales for service support. The operations and maintenance must be performed by authorized technicians. Error message Description Master Bus Voltage High The DC input voltage exceeds the allowed input limit of the inverter.
  • Page 75 RX series Error message Description 2. Lithium battery is turned off. The load connected to the generator output is greater than the maximum Gen Output OverLoad output power. Battery Open Circuit Inverter cannot detect battery voltage. Master Battery Discharge Voltage Low Low voltage detected during battery discharge and overload.
  • Page 76 RX series Error message Description power of the inverter. Output Volt DCV High The DC component of the AC output exceeds the limit range. Output Current Dci High The DC component of the AC output exceeds the limit range. Master No Grid Error The inverter cannot detect the grid voltage.

  • Page 77: Appendix

    RX series APPENDIX...

  • Page 78: Recycling And Disposal

    An inverter that has reached the end of its operation life is not required to be returned to your dealer; instead, it must be disposed by an approved collection and recycling facility in your area. 9.2. Warranty Check the product warranty conditions and terms on the Ruixu website: http://www.ruixubattery.com 9.3. Contacting Support Sunbeat Energy Address: Factory Blog.
  • Page 79 RX series Tel: +86 15019934220 Web: Ruixu Electronic Add: Factory Blog. 1, No.6 Chuangye N. Rd, Hongqi Town, Jinwan District, Zhuhai, Guangdong, China, P.C. 519000 V0.0...

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