SAJ CB2 Series User Manual
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SAJ CB2 Series User Manual

SAJ CB2 Series User Manual

C & i energy storage battery system
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CB2 Series Battery
CB2
Series
C & I ENERGY STORAGE BATTERY SYSTEM
USER MANUAL
Tel: (86)20 66608588
Fax: (86)20 66608589
Web: www.saj-electric.com
CB2-X-HV5
GUANGZHOU SANJING ELECTRIC CO., LTD
Add: SAJ Innovation Park, No.9, Lizhishan Road, Science City, Guangzhou High-tech Zone, Guangdong, P. R. China
(X=57.32 kWh, 71.65 kWh, 85.98 kWh, 100.31 kWh, 114.64 kWh, 128.97 kWh, 143.3 kWh, 157.63 kWh,
171.96 kWh, 186.29 kWh)
V0.0

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Summary of Contents for SAJ CB2 Series

  • Page 1 CB2-X-HV5 GUANGZHOU SANJING ELECTRIC CO., LTD Add: SAJ Innovation Park, No.9, Lizhishan Road, Science City, Guangzhou High-tech Zone, Guangdong, P. R. China (X=57.32 kWh, 71.65 kWh, 85.98 kWh, 100.31 kWh, 114.64 kWh, 128.97 kWh, 143.3 kWh, 157.63 kWh, 171.96 kWh, 186.29 kWh)
  • Page 2 CB2 Series Battery Preface Thank you for choosing SAJ battery. 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

    CB2 Series Battery TABLE OF 5. Electrical Connection .............................. 39 5.1. Connect the Grounding Cable ........................40 5.2. Connect Battery Power Cables ........................41 CONTENTS 5.3. Connect the Battery Communication Cables ................... 45 5.4. Connect the Battery Fan Power Cables ..................... 48 5.5.

  • Page 4: Scope Of Application

    CB2 Series Battery 1.1. Scope of Application This User Manual describes instructions and detailed procedures for installing, operating, maintaining, and troubleshooting of the following SAJ battery system: · CB2-X-HV5 1.2. Safety Instructions DANGER · DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
  • Page 5 · During installation of the battery system, the circuit breaker must be disconnected from the battery pack wiring. · The CB2 battery system can only be used as a set with SAJ's CH2 high voltage series storage inverter. Otherwise, it cannot...

  • Page 6: Explanations Of Symbols

    Operate and use the battery properly according to the user manual. Any attempt to modify the battery without Symbol Description the permission from SAJ will void the limit warranty for the battery. Danger of electrical voltage • The battery must be installed at a suitable location with sufficient ventilation.

  • Page 7: Emergency Situation

    CB2 Series Battery • Electrical hazard: Battery explosion can result in fire and explosion accidents. Battery fire or explosion To prevent battery explosion: DANGER Avoid short circuit of the battery. · If the battery is on fire, evacuate the crowd to an open area and report the fire immediately.

  • Page 8: Product Information

    CB2 Series Battery 3.1. Application Scope of Products The CB2 battery system is integrated into commercial and industrial (C&I) photovoltaic storage solutions. It features an internally housed Battery Management System (BMS) designed to maintain battery efficiency and prevent operation beyond its specified limits. The CB2 is a high-voltage battery system, engineered for reliability and performance.

  • Page 9: Product Dimensions

    CB2 Series Battery 3.2. Specification of Product Model Dimensions of CBT2-186.2-HV5 battery rack: 1970*1106*857 (mm) 1106 mm CB2 – X – HV5 ① ② ③ ① CB2 represents the product name. ② X represents the battery system energy in kWh. The value of X includes 57.32, 71.65, 85.98, 100.31, 114.64, 128.97, 143.3, 157.63, 171.96, and 186.29.
  • Page 10 CB2 Series Battery 3.4. Terminals of Battery Module 3.5. Terminals of Battery Control Module B C D I J K Figure 3.8. Terminals of the battery control module Figure 3.7. Terminals of the battery modules Callout Silkscreen Function BAT+ The positive port for DC input and output from/to the first battery module.

  • Page 11: Data Sheet

    CB2 Series Battery 3.6. Datasheet 3.6.2. CBC2 Battery Control Module 3.6.1. CB2 Battery System Figure 3.10. CBC2 battery control module Model CBC2-HV5 Voltage Range [V] 160–1000 Weight [kg] Dimension [H*W*D] [mm] 225*523*534 3.6.3. CBU2 Battery Module Figure 3.9. CB2 battery system...
  • Page 12 CB2 Series Battery 3.6.4. CBT2 Battery Rack Figure 3.12. CBT2 battery rack Model CBT2-100.3-HV5 CBT2-186.2-HV5 Weight [kg] Dimension [H*W*D] [mm] 1253*1106*857 1970*1106*857...

  • Page 13: Installation

    CB2 Series Battery 4.1. Unpacking and Inspection 4.1.1. Check the Package Despite thorough testing and inspection prior to delivery, the battery components may incur damage during transportation. Inspect the packaging for any evident signs of damage. If such signs are present, do not open the package and contact your dealer immediately.
  • Page 14 CB2 Series Battery 4.1.3. Scope of Delivery Package of CBT2-100.3-HV5 Battery Rack Package of CBC2 Battery Control Unit Left-side (L) frame Middle (M) frame Right-side (R) frame Front bottom beam x2 Battery control unit Front cover M3*8 screw x2 M6*16 screw x4...
  • Page 15 CB2 Series Battery Package of CBT2-186.2-HV5 Battery Rack Package of Distribution Box The distribution box can be ordered and installed for multi-rack deployment of the CB2 battery systems. Left-side (L) frame Middle (M) frame Right-side (R) frame Front bottom beam x2...

  • Page 16: Installation Space Requirement

    CB2 Series Battery 4.2. Installation Method and Position 4.2.3. Installation Position 4.2.1. Installation Space Requirement Poor air ventilation will affect the working performance of internal electronic components and shorten the service life of the system. Reserve at least the following clearance around the whole battery rack to ensure a...

  • Page 17: Mounting Preparation

    CB2 Series Battery 4.3. Mounting Preparation 4.4.2. Transportation Equipment The installers need to prepare proper equipment for transporting and lifting the product components. For 4.4.1. Installation Tools example, a forklift or a vertical roller conveyor. Installation tools include but are not limited to the following recommended ones. Use other auxiliary tools on Forklift site if necessary.

  • Page 18: Installation Personnel

    CB2 Series Battery 4.4.3. Installation Personnel Step 2. Insert the front bottom beam onto the frame, and secure the beam a little with two screws without tightening completely. (M12*25) CAUTION · The forklift operators must have valid operation license or certification and follow the operation safety rules.
  • Page 19 CB2 Series Battery Step 4. Place the top two beams onto the frame, and secure the beam a little bit. (M12*25) Step 6. Tighten all the 16 screws of the four beams completely. (M12*25; 47 N·m) M12*25 M12*25 47 N·m Figure 4.8.
  • Page 20 CB2 Series Battery Step 8. Place the top two beams onto the frame as step 4, and secure the beam a little bit. (M12*25) Step 10. Tighten all the 16 screws of the four beams completely. (M12*25; 47 N·m) M12*25 M12*25 47 N·m...
  • Page 21 CB2 Series Battery Step 12. Lift the battery rack from the front side of the rack, and move the rack to the target position with a Step 14. Push the battery modules into sections 1-7 of the rack, and push the battery control unit into section forklift or roller conveyor.
  • Page 22 CB2 Series Battery Step 16. Place the four mounting brackets onto the right and left side of the rack and mark the drilling holes. Step 18. Install the mounting brackets to both sides of the rack with the screws. (M12*25; 47 N·m) (M12*80;...

  • Page 23: Electrical Connection

    CB2 Series Battery 5.1. Connect the Grounding Cable Electrical connection must only be operated by professional technicians. Before connection, the technician must wear necessary protective equipment, including insulating gloves, insulating shoes and safety helmet. WARNING · Connect this grounding cable before other electrical connection.

  • Page 24: Connect Battery Power Cables

    CB2 Series Battery Step 2. Secure the OT/DT terminal to connect the grounding cable. Connect the other cable end to the Step 1. Make sure the main switch is at the OFF position. standard grounding bar. (M6*12; 5 N·m) M6*12 5 N·m...
  • Page 25 CB2 Series Battery Step 3. Connect the battery power cable according to the following figure and cable descriptions. The figure Package Cable Length (mm) From port To port shows the full configuration of 7 battery units as an example. CBU2...

  • Page 26: Connect The Battery Communication Cables

    CB2 Series Battery 5.3. Connect the Battery Communication Cables Package Cable Length (mm) From port (Silkscreen) To port (Silkscreen) CBU2 A of CBU2 Unit (BMS:A) B of CBU2 Unit (BMS:B) Step 1. Connect the battery communication cables according to the following figure and cable descriptions.

  • Page 27: Connect The Battery Fan Power Cables

    CB2 Series Battery 5.4. Connect the Battery Fan Power Cables Step 2. Insert the RJ45 termination resistors into the following ports: ⚫ CBC2 COM_PAR port Step 1. Connect the battery fan power cables according to the following figure and cable descriptions.

  • Page 28: Ac Power Cord

    CB2 Series Battery Step 2. Plug in one end of the AC power cord to the CBC2 battery control unit. Step 3. Insert the other end of the AC power cable cord through the AC-OUT port of the inverter; secure the X3:1, X3:3, and X3:5 connectors to the PE, N, and L ports of the inverter correspondingly.

  • Page 29: Install The Covers

    CB2 Series Battery 5.5. Install the Covers Step 3. Install the front covers of all the CBU2 battery modules and the CBC2 battery control unit; install the two bottom covers. (CBC2 and CBU2: M3*8; 0.6 N·m) (Bottom covers: M4*10; 1.6 N·m) Step 1.

  • Page 30: Startup And Shutdown

    CB2 Series Battery 6.1. Start Up and Shut Down the Battery System 6.1.1. Start Up Step 1. Turn the main circuit switch to the ON position. Step 2. Press the Start button for a few seconds until the button lights up in green.

  • Page 31: Commissioning

    CB2 Series Battery 6.2. Commissioning After the CH2 inverter is initialized, the battery group information can be displayed on the Device Info The installation technicians can configure the Battery Settings during the initialization of the CH2 inverter page of the inverter on the Elekeeper App. For example: on the Elekeeper App.

  • Page 32: System Expansion

    CB2 Series Battery 7.1. Expand CB2 Battery System The user can install a new rack of CB2 battery system and connect to the existing system to deploy a multi- rack battery system. In this case, the multi-rack battery systems can provide required capacity of energy in various C&I scenarios.
  • Page 33 CB2 Series Battery The following figure shows the expansion from one-rack to two-rack deployment: ⚫ Prepare the cable connections between each CB2 battery system, distribution box, and CH2 inverter. See Figure 7.1 One-rack to two-rack expansion for reference. Note: ⚫...
  • Page 34 CB2 Series Battery The following figures show the expansion from multi-rack to multi-rack deployment: Figure 7.2. Two-rack to three-rack expansion Figure 7.3. Two-rack to four-rack expansion...
  • Page 35 CB2 Series Battery Expand from multi-rack to multi-rack deployment Step 7. Install back the covers of the new CB2 systems according to Section 5.5 Install the Covers. Step 8. Turn on all the CB2 systems and the CH2 inverter. Take the following steps to expand from CB2 multi-rack deployment to multi-rack deployment.

  • Page 36: Transportation

    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 37: Troubleshooting

    CB2 Series Battery 9.1. Troubleshooting Error Code Error Message Possible Cause Solution BMS internal 1. Communication error between 1. Check if communication cable is communication error battery control unit and battery connected properly. module. 2. Check if RJ45 plug is installed.
  • Page 38 CB2 Series Battery Error Code Error Message Possible Cause Solution Error Code Error Message Possible Cause Solution Charging overcooling Battery charging at <0℃. Wait until the battery temperature Voltage difference 1. Sensor cable is loose. 1. Check if the voltage sensor protection increases and the error is cleared.

  • Page 39: 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...

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