SAJ CHS2 Series User Manual
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SAJ CHS2 Series User Manual

SAJ CHS2 Series User Manual

C&i energy storage system
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CHS2 Series
CHS2
Series
C&I ENERGY STORAGE SYSTEM
USER MANUAL
Tel: (86)20 66608588
Fax: (86)20 66608589
Web: www.saj-electric.com
GUANGZHOU SANJING ELECTRIC CO., LTD
Add: SAJ Innovation Park, No.9, Lizhishan Road, Science City, Guangzhou High-tech Zone, Guangdong, P. R. China
CHS2-(29.9K-50K)-(T4-T6)-X
V0.0
(
X=204.8V/280Ah/51.5kWh, 256.0V/280Ah/64.4kWh, 307.2V/280Ah/77.3kWh, 358.4V/280Ah/90.2kWh)

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  • Page 1 C&I ENERGY STORAGE SYSTEM USER MANUAL Tel: (86)20 66608588 Fax: (86)20 66608589 Web: www.saj-electric.com GUANGZHOU SANJING ELECTRIC CO., LTD Add: SAJ Innovation Park, No.9, Lizhishan Road, Science City, Guangzhou High-tech Zone, Guangdong, P. R. China CHS2-(29.9K-50K)-(T4-T6)-X V0.0 X=204.8V/280Ah/51.5kWh, 256.0V/280Ah/64.4kWh, 307.2V/280Ah/77.3kWh, 358.4V/280Ah/90.2kWh)
  • Page 2 CHS2 Series Preface Thank you for choosing SAJ products. We are pleased to provide you first-class products and exceptional service. This manual includes information for installation, operation, maintenance, trouble shooting and safety. Please follow the instructions of this manual so that we can ensure delivery of our professional guidance and wholehearted service.

  • Page 3: Table Of Contents

    CHS2 Series TABLE OF 5. ELECTRICAL CONNECTION ............................31 5.1. Connect the Grounding Cable ..............................32 5.2. Organize the Cables and Remove the Covers ........................33 CONTENTS 5.3. Connect the AC Cables ................................36 5.4. Connect the PV-side Cables ..............................37 5.5.

  • Page 4: Scope Of Application

    CHS2 Series 1.1. Scope of Application This User Manual describes instructions and detailed procedures for installing, operating, maintaining, and troubleshooting of the following CHS2 Energy Storage Systems (ESS): ⚫ CHS2-29.9K-T4-X, CHS2-30K-T4-X ⚫ CHS2-49.9K-T6-X, CHS2-50K-T6-X 1.2. Safety Instructions DANGER · DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
  • Page 5 · Do not stay close to the equipment while there are severe weather conditions including storm, lighting, etc. · Before opening the housing, the SAJ 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 discharged after disconnecting from power source.

  • Page 6: Explanations Of Symbols

    This device is directly connected to public grid. All operations to the battery shall only be carried out by qualified personnel. the permission from SAJ will void the limit warranty for the battery. Danger to life due to high electrical voltage •...

  • Page 7: Emergency Situation

    CHS2 Series 2) Do not move the damaged battery to avoid further damage. Fire hazard 3) Keep the damaged battery away from water. WARNING 4) Do not expose the damaged battery to the sunlight to prevent battery internal heating. ·...

  • Page 8: Product Information

    CHS2 Series 3.1. Product Application Scope This product is a high-performance Commercial & Industrial (C&I) Energy Storage System (ESS) equipped with advanced battery technology, ideal for large residential, small-scale industrial, and commercial applications. Designed to efficiently store energy for later use, the ESS features an integrated Battery Management System (BMS).

  • Page 9: Terminals Description

    CHS2 Series 3.3. Dimension 3.4. Terminals Description E D A Figure 3.3. Electrical interfaces of battery modules Callout Silkscreen Function The communication input port. The communication output port. The fan control output port. The fan power input port. The fan power output port.
  • Page 10 CHS2 Series Callout Silkscreen Function The water-proof ports for cable connections to /from the CH2 inverter and the A, B, C, D, E, F, G expansion battery systems. The AC circuit breaker. The positive port for DC input and output from/to the inverter.
  • Page 11 CHS2 Series A BC 3.5. Datasheet 3.5.1. System CHS2-(29.9K, 30K, 49.9K, 50K)-(T4, T6)-X Model CHS2-29.9K-T4-X CHS2-30K-T4-X CHS2-49.9K-T6-X CHS2-50K-T6-X DC Input Max. PV Array Power [Wp]@STC 59800 60000 99998 100000 Max. DC Voltage [V] 1000 MPPT Voltage Range [V] 180–850 Rated DC Voltage [V] Start Voltage [V] Max.
  • Page 12 CHS2 Series Model CHS2-29.9K-T4-X CHS2-30K-T4-X CHS2-49.9K-T6-X CHS2-50K-T6-X Model CHS2-29.9K-T4-X CHS2-30K-T4-X CHS2-49.9K-T6-X CHS2-50K-T6-X Max. Input Power [VA] 138000 138000 138000 138000 Warranty [Year] 5/10 Max. Input Current [A]@230V VDE4105, IEC61727/62116, VDE0126, AS4777.2, CEI 0 21, EN50549-1, G98, G99, C10-11, Standard UNE217002, NBR16149/NBR16150, IEC62109-1/-2, NBT32004-2018, EN61000-6-1,...

  • Page 13: Installation Instructions

    4.1. Unpacking 4.1.1. Check the Outer Package Although SAJ products are thoroughly tested and checked before delivery, the products may suffer damages during transportation. Check the package for any obvious signs of damage, and if such evidence is present, do not open the package and contact your dealer as soon as possible.

  • Page 14: Mounting Method

    CHS2 Series 4.2. Installation Method and Position Unit: mm 1000 4.2.1. Installation Position and Space Requirement This device is equipped with an air conditioner for cooling and provides the ingress protection of IP 55 (Battery) and IP66 (Inverter). The device can be installed either indoors or outdoors. For outdoor installation, the pollution degree classification needs to be IP44 at the minimum.

  • Page 15: Mounting Procedure

    CHS2 Series • The equipment employs air conditioner cooling, and it can be installed indoor or outdoor. • Mount vertically. Never install the device tilted forwards, sideways, horizontally or upside down. • The ground should be flat without inclination. The load-bearing capacity of the ground should reach 1.5 Multimeter tons.

  • Page 16: Transportation Equipment

    CHS2 Series 4.3.2. Transportation Equipment Crane Use a crane to move or lift the cabinet. A force greater than two tons is required to move this device. The The installers need to prepare proper equipment for transporting and lifting the product components. For height between the sling and the top surface must be greater than or equal to 1.5 meters.

  • Page 17: Mount The Cabinet

    CHS2 Series 4.3.4. Mount the Cabinet Step 3. Move and place the cabinet to the installation location with a forklift or crane. Align the holes at the cabinet bottom with the drilled holes. Select one of the following options to secure the cabinet: ⚫...
  • Page 18 CHS2 Series To secure the cabinet with the mounting brackets: Step 3. Remove the mounting brackets, and use an electrical drill to drill four holes on the floor at the depth of 80-90 mm. Put an expansion tube in each hole. (M12*80) Step 1.

  • Page 19: Electrical Connection

    CHS2 Series 5.1. Connect the Grounding Cable Electrical connection must only be operated by professional technicians. Before connection, the technicians must wear necessary protective equipment, including insulating gloves, insulating shoes and safety helmet. WARNING · Connect the grounding cable before other electrical connections.

  • Page 20: Organize The Cables And Remove The Covers

    CHS2 Series Step 3. Use a knife to cut the end of the cable sleeves at the cable outlet holes. 5.2. Organize the Cables and Remove the Covers Procedure Step 1. Remove the metal plate at the bottom right corner of the cabinet for wiring convenience.

  • Page 21: Connect The Ac Cables

    CHS2 Series Step 5. Remove the baffle under the inverter. 5.3. Connect the AC Cables Prepare the GRID, GEN, and Backup cables according to different deployment scenarios of the customer. For detailed cable specifications, see Section 5.8 " System Connection Diagrams "...

  • Page 22: Earth Fault Alarm

    CHS2 Series 5.3.1. Earth Fault Alarm Note: When the inverters are used in parallel, it is necessary to ensure that the PV power of all inverters is consistent as much as possible. This inverter complies with IEC 62109-2 clause 13.9 for earth fault alarm monitoring. If an earth fault alarm WARNING occurs, the ring light on the inverter LED panel will be lit up in red and an error code <31>...
  • Page 23 CHS2 Series Step 3. Insert the cable ends to the sleeves. Use a crimping plier to assembly the cable ends. Step 6. Make sure the two DC switches are at the OFF position. Figure 5.11. Assembling the cable ends Step 4. Insert the positive and negative cables into the positive and negative connectors. Gently pull the cables backward to ensure firm connection.

  • Page 24: Communication Connection

    CHS2 Series 5.5.2. Connect the Communication Cables and Plugs 5.5. Communication Connection Step 1. Prepare the wires for the 2-pin, 3-pin, and 6-pin plugs depending on which communication functions 5.5.1. Communication Interfaces Overview are required. The inverter provides the communication interfaces and ports that allow the inverter to communicate with external equipment and systems like the generator, the energy management system (EMS), and so on.
  • Page 25 CHS2 Series 5.5.3. Grid Current Transformer Connection The CT ports are provided to connect with the current transformers (CT) to sample the current flowing through the grid. The installer can select the corresponding terminals for connection depending on the following input current range of the CTs: •...

  • Page 26: Generator Connection

    CHS2 Series 5.5.6. Generator Connection 5.5.8. Emergency Stop Switch Connection The DRY.DO1 port can connect with the generator to control the start and stop of the generator. The SHUT DOWN port can connect with an external switch to stop the inverter immediately in emergent When the inverters are deployed in parallel, the generator needs connect to the DO4 interface of the EMS situations.

  • Page 27: Meter Connection

    CHS2 Series 5.5.10. Meter Connection When two meters are used, set the address of the inverter-side meter to 2. Do NOT change the default address 1 of the grid-side meter. The CT arrow direction points to the CHS2 inverter. The METER.485 port can connect with meter CHINT’s DTSU666 to provide RS485 communication.
  • Page 28 CHS2 Series 5.5.11. DIP Switch Connection Meter DTSU666 Button Description The SW1/2/3 dual inline package (DIP) switches are provided to control the activation of 120 Ω terminal resistors to ensure the communication stability of the corresponding communication functions. Confirmation or cursor shift (when input digits) Exit →...

  • Page 29: Install The Communication Module

    CHS2 Series 5.5.12. RJ45 Ports Connection 5.6. Install the Communication Module RS485.PAR.1/RS485.PAR.2 METER.485 RS485-1B Step 1. Plug in the communication module to the 4G/WIFI port and rotate the module to secure it. RS485-1A RS485-2B RS485-2A RS485-A RS485-A RS485-3A RS485-B RS485-B RS485-3B BMS.1/ BMS.2/ BMS.3...

  • Page 30: System Connection

    CHS2 Series Step 3. Install back the decorative panel on the front of the inverter. 5.7. System Connection The following figure shows the system connection applicable in Australia and New Zealand. ⚫ For safety, the neutral (N) cables of the grid and backup-load sides must be connected together.

  • Page 31: System Connection Diagrams

    CHS2 Series The following figure shows the system connection for the grid system without special requirements. 5.8. System Connection Diagrams Note：The backup PE line and earthing bar must be grounded properly. Otherwise, the backup function may 5.8.1. Backup Single Deployment be inactive during blackout.
  • Page 32 CHS2 Series In this deployment, prepare the GRID, GEN, and Backup AC cables according to the following specifications: For the diagram of system connections, see Figure 5.34 System connections of single machine deployment (On-grid loads only). Cable cross-sectional area (mm² )
  • Page 33 CHS2 Series In this deployment, prepare the GRID, GEN, and Backup AC cables according to the following specifications: 5.8.3. Backup Parallel Deployment The following diagram shows the system connections of parallel deployment where both the backup and the Cable cross-sectional area (mm² )

  • Page 34: Afci

    CHS2 Series 5.9. AFCI The inverter is equipped with an arc-fault circuit interrupter (AFCI). With AFCI protection, when there is an arc signal on the DC side due to the aging of the cable or loose contact, the inverter can quickly detect it and cut off the power to prevent fire to ensure the PV system safety.

  • Page 35: Commissioning

    CHS2 Series 6.1. Start Up and Shut Down the Inverter 6.1.1. Start Up Step 1. Turn the two DC switches to the ON position on the inverter to enable the PV side connection. Figure 6.1. Turning on the DC switches Step 2.

  • Page 36: Led Indicators Introduction

    CHS2 Series 6.1.2. Shut Down LED indicator Status Description Step 1. Turn off the external AC circuit breaker to disconnect from the grid. Solid The battery is discharging. Step 2. Rotate the main switch on the battery control unit to the OFF position to shut down the battery system.

  • Page 37: Log In To The App And Perform The Initialization

    CHS2 Series For example: 6.4. Log in to the App and Perform the Initialization Step 1. Open the App and tap the three-dot icon on the top right corner. Set the Language to English and Network Node to European Node or International Node. Then, use your account to log in to the App.

  • Page 38: Set The Export Limit Function

    CHS2 Series 6.6. View Inverter Settings and Status After commissioning, the users can view the following device info on the App: • On the Device Info page: Basic Info, Running Info, and Event Info - On the Basic Info page, you can view the inverter firmware version, including Display Board Version (ARM) and Control Board Version.

  • Page 39: Transportation & Storage

    The battery cannot be disposed of as household refuse. When the service life of the battery reaches the limit, it is not required to return it to the dealer or SAJ, but it must be recycled to the special waste lithium...

  • Page 40: Troubleshooting

    CHS2 Series 8.1. Troubleshooting Contact your supplier for troubleshooting and remedy. Error Code Error Message Master Relay Error Master EEPROM Error Master Temperature High Error Master Temperature Low Error Lost Communication M<->S GFCI Device Error DCI Device Error Current Sensor Error...
  • Page 41 CHS2 Series Phase2 DCI Error Slave Phase2 Voltage High Phase3 DCI Error Slave Phase2 Voltage Low ISO Error Slave Phase3 Voltage High Bus Voltage Balance Error Slave Phase3 Voltage Low Master Bus Voltage High Slave Frequency High Master Bus Voltage Low...
  • Page 42 CHS2 Series Single Cell Over Voltage Protection Temperature inside cabinet too low BMS hardware error Humidity too high Charging temperature low protection Humidity too low Charging temperature high protection Coil anti-freeze Discharging temperature low protection Defrost probe error Discharging temperature high protection...

  • Page 43: Routine Maintenance

    CHS2 Series 9.1. Suggested Maintenance Operations Product parts Operation Standard Interval Power OFF Cabinet Visual inspection： No obvious coating peeling or scratches. Quarterly • Rust No obvious paint fading or rusting. • Door locks Door lock is not damaged. • Air vents No dust accumulation in the vent.

  • Page 44: Appendix

    10.2. Warranty Visit the SAJ website for warranty conditions and terms: https://www.saj-electric.com/. 10.3. Contacting Support Guangzhou Sanjing Electric Co., Ltd. Address: SAJ Innovation Park, No.9, Lizhishan Road, Guangzhou Science City, Guangdong, P.R.China. Postcode: 510663 Website: https://www.saj-electric.com/ Technical Support & Service...

This manual is also suitable for:

Chs2-29.9k-t4-xChs2-30k-t4-xChs2-49.9k-t6-xChs2-50k-t6-xChs2-29.9k-t4-204.8v/280ah/51.5kwhChs2-29.9k-t4-256.0v/280ah/64.4kwh ... Show all

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