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wattsonic 25K-100A-3P User Manual

Li-hv commercial three phase hybrid
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User Manual
Wattsonic Li-HV Commercial Three Phase Hybrid
25/30/36/40/50K-100A-3P | Li-HV 65/130/195/260/325kWh
Dec 2024

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Summary of Contents for wattsonic 25K-100A-3P

  • Page 1 User Manual Wattsonic Li-HV Commercial Three Phase Hybrid 25/30/36/40/50K-100A-3P | Li-HV 65/130/195/260/325kWh Dec 2024...
  • Page 3 LIFE’S INNOVATION...

  • Page 4: Table Of Contents

    Contents Product Installation 3.1 Installation tool Overview 3.2 Packing list 3.3 Supported installation environment 1.1 Overview 3.3.1 Installation location of inverter 1.2 Safety instructions and warning 3.3.2 Installation location of cabinet 1.2.1 Explanation of symbols 3.4 Commercial cabinet installation 1.2.2 Safety instructions 3.4.1 Installation preparation 1.2.3 Statement 3.4.2 Single-cabinet installation...
  • Page 5 4.7.7 Dred 4.7.8 Multifunction relay 4.7.9 Parallel system 4.8 PV string connection 4.8.1 PV side requirements 4.8.2 Assembling the PV connector Monitoring 4.8.3 Installing the PV connector 4.9 Power Cable of the Battery Connection 7.1 Monitoring device connection 7.2 Cloud monitoring app 7.3 Local configuration app Commissioning and Maintenance...

  • Page 6: Overview

    Overview 1.1 Overview Thank you for selecting the Wattsonic Li-HV Commercial Three Phase Hybrid Series. Of course, you have made a great decision and will be pleased with this product's features, benefits, and quality. These instructions will help you to familiarise yourself with the Wattsonic Li-HV Commercial Three Phase Hybrid Series, and you will experience a smooth and efficient journey, and make sure to get the maximum benefit from this powerful device by reading the instructions.

  • Page 7: Safety Instructions And Warning

    Wattsonic Commercial Cabinet, installation and repair instructions assume knowledge of high voltage electricity and should only be performed by Wattsonic Certified Installers. Wattsonic assumes no liability for injury or property damage due to repairs attempted by unqualified individuals or a failure to follow these instructions properly. These warnings and cautions must be followed when using Wattsonic Commercial Cabinet.

  • Page 8: Safety Instructions

    Do not install products with damaged or uninsulated tools. Please ensure the earth ground wire connection is stable to prevent possible electric shock. The installation must be carried out only by Wattsonic Certified Installers, who have been trained in dealing with high voltage electricity.
  • Page 9 Do not attempt to open, disassemble, repair, tamper with, or modify Wattsonic battery module. Wattsonic battery module is not user serviceable. LFP Cells in Wattsonic Battery are not replaceable. Contact the Wattsonic Authorized Reseller who sold the battery for any repairs.

  • Page 10: Statement

    1.2.3 Statement Warranty Statement Wuxi Wattsonic Energy Technology Ltd. has the right not to undertake quality assurance in any of the following circumstances: 1) Damages caused by improper transportation. 2) Damages caused by incorrect storage, installation or use. 3) Damages caused by installation and use of equipment by non-professionals or untrained personnel.

  • Page 11: Product And System Introduction

    Note: The system is not suitable for supplying life-sustaining medical devices. It cannot guarantee backup power in all circumstances. The applicable grid types for the Wattsonic WTS-[25-50kW]-100A-3P series are TN-S, TN-C, TN-C-S, and TT. When applied to the TT grid, the voltage of N to PE suggests less than 30V.

  • Page 12: Operation Modes

    2.2 Operation modes Wattsonic WTS Hybrid inverter has the following basic operation modes, and you can configure the operation mode as per your preference in the App. 2.2.1 Running modes introduction General Mode Inverter Loads Battery Grid In this working mode, when the power from the PV array is sufficient, PV power will supply the loads, battery, and grid in the order of loads first, battery second, and grid last.
  • Page 13 Peak load Shifting (Load Shifting) ≤ Pload Pmax Inverter Loads Battery Grid Set the maximum power Pmax (kVA) contracted with the grid. When the load consumption is less than the Pmax, the PV will charge the battery first, and the grid will supply the load. Once the battery is complete, the PV will power the load and the grid rather than the battery.
  • Page 14 UPS Mode Inverter Loads Battery Grid In this working mode, the inverter will use the power from the PV or grid to charge the battery until it is fully charged, and as long as the grid is there, the battery won’t discharge. Inverter Back-up Loads Battery...
  • Page 15 Economic Mode Inverter Loads Battery Grid In this working mode, you can set charge/discharge power and time in the App. The inverter will use the energy from PV or the grid (whether to use it or not can be set in the App) to charge the battery for a predetermined period. Inverter Loads Battery...

  • Page 16: Back-Up And Off-Grid Output

    Off-Grid Mode Inverter Loads Battery Grid In the purely off-grid mode, power from PV will supply the back-up loads first and then charge the battery if there's surplus power. Inverter Loads Battery Grid When the power from PV isn’t enough, the battery will discharge to supply backup loads with PV. 2.2.2 Back-up and off-grid output Normally, the Back-Up switching time is less than 10ms.

  • Page 17: Product Introduction

    2.3 Product introduction Control elements list Picture Item Content Size(mm) W:800 Inverter Inverter D300 H:620 W:640 D:850 Cabinet Cabinet Frame H:1970 W:489 Battery Module Battery Module D:768.5 BMU DOWN BMU UP H:95 W:517.6 Master BMS Master BMS DATA INTERNAL SERVICE CLUSTER PARALLEL BAT OUT +...

  • Page 18: Inverter

    2.3.1 Inverter The Wattsonic WTS-[25-50kW]-100A-3P series inverter is also known as a hybrid inverter or storage inverter, which is mainly used to combine the PV array, lithium battery, loads, and power grid to realize intelligent power management and dispatching. Models...

  • Page 19: Battery Module

    Communication RS485 or CAN. Indicator The inverter isn’t communicating Orange Always on with Wattsonic smart meter. The inverter isn’t communicating Always on with the BMS. Display Display off to save power, press the button to wake up the display. Button Switch display information and set parameters by short press or long press.

  • Page 20: Master & Sub-Master Bms

    2.3.3 Master & Sub-Master BMS The battery management unit of the rack has a built-in Rack BMS and battery protection Unit. Mounted in the uppermost position of the cabinet. Use 1*sub-master BMS for a single cabinet system. Use 1*master BMS and (n-1)*sub-master BMS for a n*cabinet system. Master power switch Master Power is a switch that protects the battery modules.
  • Page 21 Master BMS Power button (Master Power) DC Output to PCS/Inverter Multi-racks parallel COM Battery rack DC Input+/- DATA INTERNAL SERVICE CLUSTER PARALLEL BAT OUT + BAT OUT - MODULE - MODULE + 1 2 3 4 5 6 7 8 MODULE OUT MASTER POWER BAT ON/OFF...
  • Page 22 Sub-Master BMS Power button (Master Power) DC Output to PCS/Inverter Multi-racks parallel COM Battery rack DC Input+/- DATA INTERNAL CLUSTER PARALLEL IN PARALLEL OUT BAT OUT + BAT OUT - MODULE - MODULE + 1 2 3 4 5 6 7 8 MODULE OUT MASTER POWER BAT ON/OFF...

  • Page 23: Cabinet Frame

    1) The device is thoroughly tested and strictly inspected before delivery. Nonetheless, damage may still occur during shipping. For this reason, please conduct a thorough inspection after receiving the device. 2) Contact Wattsonic or the transport company in case of any damage or incompleteness, and provide photos to facilitate services.

  • Page 24: Product Installation

    Product Installation 3.1. Installation tool Caution: All tools used for installing the battery should be insulated or free of exposed metal parts. If not, at least the handle knob must be insulated. (1) Torque wrench (2) Electric driver Used for fastening the cable terminal and product. Used to fasten the enclosure of a product.
  • Page 25 3.3 Supported installation environment 3.3.1 Installation location of inverter The Wattsonic WTS-[25-50kW]-100A-3P series inverters are designed with IP65 protection enclosure for indoor and outdoor installations. When selecting an inverter installation location, the following factors should be considered: 1) The wall on which the inverters mounted must be able to withstand the weight of the inverter.

  • Page 26: Supported Installation Environment

    Warning: Do not put flammable and explosive articles around the inverter. Select an optimal mounting location for safe operation, long service life and expected performance. 1 ) The inverter with protection rating IP65 can be installed both indoors and outdoors. 2) Install the inverter at a place convenient for electrical connection, operation, and maintenance.

  • Page 27: Commercial Cabinet Installation

    3.4 Commercial cabinet installation 3.4.1 Installation preparation Choice of installation position Recommended installation space of single rack / multiple racks: Minimum 500mm open space Minimum Minimum Minimum 2000mm 2000mm 2000mm open space open space open space Pre-installation check Before proceeding with the installation, pre-check the battery to make sure it is safe. Use a digital multimeter to measure the voltage between the positive terminal (+) and the negative terminal (-) of the battery module.

  • Page 28: Single-Cabinet Installation

    3.4.2 Single-cabinet installation (1) Rack installation and fixing Refer to the construction drawing to install the cabinet. Step1. Step2. Step3. Step1. Place the cabinet on a level stable floor. Step2. The cabinet can be adjusted as needed from the back wall, and matched with the equidistant holes of the L type mounting structure, and fixed.
  • Page 29 (2) Mounting and securing product Caution: Please use at least 3-4 people during installation for safety reasons. Do not mount the module upside down. Check the module before installation to ensure safety. Master BMS and Sub-Master Module Installation Location BMU DOWN BMU UP Battery Module BMU DOWN...

  • Page 30: Multi-Cabinet Installation

    Step3. Install the battery module from bottom to top, and install the Sub-Master BMS at the top of the cabinet, use M6×10 screws and lock washer to secure the Sub-Master BMS to the cabinet. M6×10 Triad Screw Lock Washer 3.4.3 Multi-cabinet installation (1) Rack installation and fixing Refer to the construction drawing to install the cabinet.
  • Page 31 (2) Mounting and securing product Caution: For safety reasons, please use at least 3-4 people during installation. Do not mount the module upside down. Check the module before installation to ensure safety. Master BMS and Sub-Master Module Installation Location BMU DOWN BMU UP BMU DOWN BMU UP...

  • Page 32: Inverter Installation

    Step3. Install the battery module from bottom to top, and install the Sub-Master BMS in the top of the cabinet, use M6×10 screws and lock washer to secure the Sub-Master BMS to the cabinet. M6×10 Triad Screw Lock Washer 3.5 Inverter installation 3.5.1 Installation preparation Installation spacing Reserve enough clearance around the inverter to ensure sufficient space for heat dissipation.

  • Page 33: Installation Angle

    When installing inverters back-to-back, the distance between every two inverters should be at least 600 mm. ≥600mm Installation angle Install the inverter vertically. Never install the inverter horizontally, or at forward/backward tilted, or upside down. User Manual...

  • Page 34: Mounting The Inverter

    3.5.2 Mounting the inverter Bracket installation Dimensions of wall bracket (mm) 4- 12 1) Level the assembled inverter-bracket by using the level, and mark the positions for drilling holes on the mounting bracket. Drill the holes by using a hammer drill. 2) Secure the inverter-bracket with bolts.

  • Page 35: Electrical Connection

    Warning: Static may cause damage to the electronic components of the inverter. Anti-static measures should be taken during installation and maintenance. Note: Do not use other brands or terminals other than the terminals in the accessory package. Wattsonic has the right to refuse all damages caused by the mixed-use of terminals.
  • Page 36 (2) Ground terminal connection of single cabinet After the cabinet is fixed, connect one of the earth points of the cabinet (side top or bottom) to the PE distribution box. And each cabinet should be connected with a grounding wire. Warning: Please make sure the Main Switch is always at the OFF position during cable connection to guarantee high voltage protection.

  • Page 37: Connection Between Bms And Inverter

    MODULE OUT MASTER POWER BAT ON/OFF BMU DOWN BMU UP 4 . 2 Connection between BMS and inverter BMU DOWN BMU UP 4.2.1 Single-cabinet Wiring overview diagram BMU DOWN BMU UP COM1 ON-GRID BACK-UP DC SWITCH 1-2 DC SWITCH 3-4 DATA INTERNAL CLUSTER...
  • Page 38 MODULE OUT MASTER POWER BAT ON/OFF BMU DOWN BMU UP Communication cables connection Warning: Please make sure the Main Switch is always at the OFF position during cable connection to BMU DOWN BMU UP guarantee high voltage protection. Caution: Connect communication cables as below figure and avoid connecting to other communication BMU DOWN BMU UP ports.

  • Page 39: Power Cables Connection

    Power cables connection Warning: 1. Make sure the main switch on the Sub-Master BMS is "OFF" before cables connection. 2. At least two people should work on cables connection to ensure accurate and safe operation. 3. Please make sure to wear insulating gloves before installation. 4.
  • Page 40 Connection between BMS and Inverter Note: To ensure the safe use of the equipment, please connect the circuit breaker between the PC and the BMS. Ensure there is no power supply before connecting, and use a cable that meets the requirements. Power Cable: Connect the BAT OUT+ and BAT OUT- of Master BMS to BAT+ and BAT- of inverter.

  • Page 41: Multi-Cabinet

    4.2.2 Multi-cabinet Wiring overview diagram Combiner COM1 ON-GRID BACK-UP DC SWITCH 1-2 DC SWITCH 3-4 BAT+ BAT- COM2 COM3 DATA INTERNAL CLUSTER PARALLEL IN PARALLEL OUT DATA INTERNAL CLUSTER PARALLEL IN PARALLEL OUT DATA INTERNAL SERVICE CLUSTER PARALLEL BAT OUT + BAT OUT - MODULE - MODULE +...
  • Page 42 MODULE OUT MASTER POWER BAT ON/OFF BMU DOWN BMU UP Multi racks parallel COM connection BMU DOWN BMU UP Caution: Connect communication cables as below figure and avoid connecting to other communication ports. If you change the communication port arbitrarily, the product may be broken. Use only the provided communication cable.
  • Page 43 Warning: Please make sure the Main Switch is always at the OFF position during cable connection to guarantee high voltage protection. Step4. Communication cable C Use communication cable C to connect communication between Mater BMS and Sub-Master BMS. 1. Connect the ⑥ "PARALLEL" port of the Master BMS to the ⑥ "PARALLEL OUT" port of the Sub-Master BMS. 2.
  • Page 44 Power cables connection Warning: 1. Make sure the main switch on the Sub-Master BMS is "OFF" before cables connection. 2. At least two people should work on cables connection to ensure accurate and safe operation. 3. Please make sure to wear insulating gloves before installation. 4.
  • Page 45 Connection between BMS and inverter Warning: Please make sure the Main Switch is always at the OFF position during cable connection to guarantee high voltage protection. Note: To ensure the safe use of the equipment, please connect the circuit breaker between the PC and the BMS.

  • Page 46: Electrical Wiring Diagram

    4.3 Electrical wiring diagram This diagram shows Wattsonic WTS 25-50K series hybrid inverter wiring structure and composition, concerning the real project, the installation and wiring have to be in line with the local standards. AC Breaker AC Breaker AC Breaker...
  • Page 47 Single inverter wiring diagram This diagram is an example without a special requirement for an electrical wiring connection. The neutral line of AC supply can be isolated or switched. BACK-UP ON-GRID User Manual...
  • Page 48 This diagram is an example of Australia and New Zealand. The neutral line of the AC supply must not be isolated or switched, and the neutral cable of the GRID side and BACK-UP side must be connected according to the wiring rules AS/NZS_3000.

  • Page 49: Ac Connection

    Max to ensure that the WTS 25-50K can safely disconnect itself from the power grid when an exception occurs. Input (output) current of WTS 25-50K AC side. The allowable AC cable of wire diameter and cross-sectional area for Wattsonic WTS 25-50K are as shown in the following:...

  • Page 50: Installing The Ac Connector

    4.4.2 Installing the AC connector Danger: High voltage may be present in the inverter! Ensure all cables are voltage-free before electrical connection. Do not connect the AC circuit breaker until all inverter electrical connections are completed. The AC terminal block is on the bottom side of the inverter. 1) Seal accessory option.

  • Page 51: Removal The Ac Connector

    Warning: The cord end terminals must be locked tightly and ensure they won’t be loose after a long period of use. 5) Insert the main body into the rubber core and hear the "click" sound, then tighten the nut with an open-ended wrench (torque 10.0±0.1N·m) and complete the installation with a "click, click, click."...

  • Page 52: Monitoring Device Installation

    The current Transformer, also called CT, is usually installed on the L wires between the house loads and the power grid. The Meter can be installed in the AC combiner box or other places that are unable to be touched by children. Wattsonic CT cable with a length of 2m is fixed and can not be extended.
  • Page 53 Notice: CT installation directions should strictly follow the instructions in the user manual. Otherwise, the inverter may not be working. The CT has to correspond with the port in the Meter, and the connection between the CT and the Meter needs to be reliable.

  • Page 54: Communication Connection

    4.7 Communication connection All communication ports are in the multifunction communication Port at the bottom of the inverter, including the Meter port, CAN port, BMS port, EMS port, DRED port. DO port, 0-10V AO port, 4-20mA AO port. Terminating resistor for  Terminating resistor for  RS485(EMS) CAN(Parallel) COM2 Port...

  • Page 55: Assembling The Multi-Com Connector

    COM3 Port Definition Function Reserved DO-2 (Multifunction Relay) 9-10 Reserved DO-3 (Multifunction Relay) Reserved 13-16 4-20mA_OUT 4-20mA analog output 0-10V analog output 0-10V_OUT 4.7.1 Assembling the Multi-COM Connector 1) Unscrew the swivel nut from the connector. COM2 COM3 User Manual...

  • Page 56: Onnect The Meter And Bms Communication Cables

    Press 2) Take out the terminal block. COM2 Press COM2 COM3 3) Remove the seal and lead the cable through the cable gland. COM3 COM2 COM3 4.7.2 Connect the Meter and BMS communication cables Note: The communication between the meter/BMS and inverter is the RJ45 interface cable. The communication cable of the meter is 10M, and the line of BMS is 3M.

  • Page 57: Connect Other Cables

    4.7.3 Connect other cables 1) Thread the cable of appropriate length through the swivel nut and the housing. Remove the cable jacket and strip the wire insulation. Wire Diameter Wire Diameter 3.5~6mm Cross-sectional Area Cross-sectional Area 0.5~1.5mm 0.5~1.5mm 55mm 55mm COM2 COM3 2) (Optional) When using a multi-core, multi-strand copper wire cable, connect the AC wire head to the cord end...

  • Page 58: Installing The Com Connector

    Note: Before purchasing the battery, you need to ensure the battery you selected is in the battery approval list of Wattsonic; otherwise, the system may not work correctly. If you are unsure, don't hesitate to contact your installer or Wattsonic service team for confirmation.

  • Page 59: Ems Communication

    DRED (Demand Response Enabling Device) interface is specially reserved for Australia and New Zealand according to their safety regulation, and Wattsonic doesn’t provide the DRED device for the customer. The inverter supports the demand response modes as specified in the standard AS/NZS 4777. The inverter has integrated a terminal block for connecting to a DRED.

  • Page 60: Multifunction Relay

    Note: The AC contactor should be placed between the inverter and the loads. Do not connect the load to the DO port directly. The Wattsonic does not supply the contractor. Connect the load to the DO port of the inverter directly if the load is designed with a DI port.

  • Page 61: Parallel System

    The on-grid and back-up side cannot be The back-up side cannot be connected on- connected to and generator directly. grid side or grid. For advanced applications, please contact our after-sales department. Note: For more installation and setup information about parallel systems, please contact Wattsonic. User Manual...

  • Page 62: Pv String Connection

    4.8 PV string connection Danger: High voltage may be present in the inverter! Ensure all cables are voltage-free before performing electrical operations. Do not connect the DC switch and AC circuit breaker before finishing the electrical connection. Warning: When the inverter is connected to the battery, the maximum MPPT voltage and operating voltage is 900V.

  • Page 63: Assembling The Pv Connector

    4.8.2 Assembling the PV connector Warning: Before assembling the DC connector, ensure the cable polarity is correct. 1) Peel off the DC cable insulation sleeve for 7 mm. 2) Disassemble the connector in the accessory bag. 3) Insert the DC cable through the DC connector nut into the metal terminal and press the terminal with a professional crimping plier (pull back the cable with some power to check if the terminal is well connected to the cable).

  • Page 64: Installing The Pv Connector

    4.8.3 Installing the PV connector Warning: Please make sure the DC isolator is always at the OFF position during cable connection to guarantee high voltage protection. 1) Rotate the DC switch to the “OFF” position. 2) Check the cable connection of the PV string for polarity correctness and ensure that the open circuit voltage in any case does not exceed the inverter input limit of 1,000V, PV Max.

  • Page 65: Power Cable Of The Battery Connection Connection

    Caution: If the conductor core of the battery cable is too small, which may cause poor contact between the terminal and the cable, please use the cable specified in the above table, or contact Wattsonic to purchase terminals of other specifications.
  • Page 66 3) Insert the battery cable through into the metal terminal and press the terminal with a professional crimping plier (pull back the cable with some power to check if the terminal is well connected to the cable). 4) After the crimping is completed, push the cable gland, grommet and end cap at the plug end into place, and tighten the end cover with the thread of the plug unit.

  • Page 67: Commissioning And Maintenance

    Commissioning and Maintenance 5.1 System start and stop 5.1.1 Startup procedures Caution: Please refer to the procedure to start the system. Wrong operation may cause system start-up failure or danger. Please always keep LVP at RUN position after starting up, or the batteries has high risk of going to flat, LVP is the hardware level protecting of the batteries from over-discharge.

  • Page 68: Stop Procedures

    BAT ON/OFF 5.1.3 Emergency stop function Emergency stop button Wattsonic WTS 25-50K hybrid inverter comes standard with a fast stop function, and you can use this function by connecting an external switch to the Emergency stop interface if required in the installation place. The external controller is not in our accessory box.

  • Page 69: Inverter Commissioning

    7.3 Local configuration App". 2) Register an account on the Cloud monitoring App. If you have got the account and password from the distributor/ installer or Wattsonic, skip this step. 5.2.2 Inspection Check the following items before starting the inverter: 1) All equipment has been reliably installed.

  • Page 70: Maintenance

    Caution: A temporary warning sign or barrier must be posted to keep non-related persons away while performing electrical connection and service work. Attention: For any maintenance need, please contact us. Otherwise, Wattsonic shall not be held liable for any damage caused.

  • Page 71: Inverter Operation

    Inverter Operation When the inverter is turned on, the following interfaces will be displayed on the OLED display, and the OLED display allows the user to check various operation information and to modify the settings of the inverter. Note: If the parameter is a number short press to change the number, long press to confirm the number and jump to the next number.

  • Page 72: General Setting

    6.2 General setting General Settings FM Version V1.xx.xx.xx.xx Check code System Info V1.00 xxxxxxxxxxxxxxx V1.xx.xx.xx.xx xxxxxx 2022-05-30 10:05:05 2022-05-30 10:05:05 2022-05-30 10:05:05 Fault Info Fault 1 Fault 2 Fault N RSSI <General> <General> <General> <General> DHCP Set DHCP Set IP Addr IP Addr 192.168.0.10 192.168.0.10...

  • Page 73: Advanced Setting

    6.3 Advanced setting Advanced InPut Password Wait 1000 Settings Incorrect Verify Fail Wait Correct Verify OK <Advanced> <Advanced> <Advanced> <Advanced> The last page Safety Set Safety Set Safety Set Safety Set 50Hz Default Safety Code 1S ty Code afety Code N <Advanced>...
  • Page 74 Previous Page <Advanced> <Advanced> <Advanced> OnGrid SOCProt OnGrid SOCProt OnGrid SOCProt <Advanced> <Advanced> OnGrid EndSOC OnGrid EndSOC 3 3 0 0 <Advanced> <Advanced> <Advanced> <Advanced> <Advanced> <Advanced> <Advanced> <Advanced> Unbalan.Output Unbalan.Output Unbalan.Output <Advanced> Auto Test CEI-021 <Advanced> <Advanced> <Advanced> <Advanced> System Maint.
  • Page 75 Inverter display abbreviation and complete name reference table Abbreviation Complete Name Safety Set Select the code that meet local regulatory requirements Battery_ID Set Select the battery model Work Mode Current work mode / work mode setting Export Limit On-grid export limit function switch Feed in Grid Set the percentage of the power that is allowed to feed to the grid Reactive Modes...

  • Page 76: Country Code (Safety Code) Setting

    Abbreviation Complete Name MaxOutputSet Select the maximum AC output power. Rated, Max. output power= Rated output power on the datasheet Overload, Max. output power= Max. output power on the datasheet Limit, Max. output power< Rated output power on the datasheet Export Control In the power export limit on mode, when the communication between the inverter and meter or the inverter and datalogger is interrupted, select the...
  • Page 77 Connect the AC cable, auto test will start after the inverter connected to the grid, see the operation steps below: Previous Page <Advanced> <Advanced> If Tested Auto Test Auto Test Wait CEI 0- 21 Record Wait <Advanced> Vac Set: 253.0V Time Set: 603 S Wait Wait...

  • Page 78: Reactive Power

    Capabilities This mode can be enabled via configuration software. It is enabled by default in some regions, such as AU and DE markets. For information on how to change default setpoints please contact Wattsonic Technical Support at service@ wattsonic.com. Descriptions of reactive power regulation mode:...

  • Page 79: Qt" Mode

    6.6.3 “Qt” mode In the Qt mode, system rated reactive power is fixed, and the system injects reactive power according to the delivered reactive power ratio. The setting range of the reactive power ratio is 0-60% or 0--60%, corresponding to the ranges of inductive and capacitive reactive power regulation respectively.

  • Page 80: Q(U)" Mode

    6.6.5 “Q(U)” mode The reactive power output of the inverter will vary in response to the grid voltage. “Q (U)” Mode Parameter Descriptions: Parameter Explanation Range Hysteresis Ratio Voltage hysteresis ratio on the Q(U) mode curve 0 ~ 5% QU_V1 Grid voltage limit at P1 on the Q(U) mode curve 80% ~ 100% QU_Q1...

  • Page 81: Monitoring

    7.2 Cloud monitoring app Wattsonic inverter provides a monitoring port that can collect and transmit data from the inverter to the Wattsonic monitoring platform via an external monitoring device. Please refer to the product nameplate on the side of the enclosure to get the monitoring application.

  • Page 82: Troubleshooting

    Troubleshooting 8.1 Error message Wattsonic WTS-[25-50kW]-100A-3P series hybrid inverter is designed following grid operation standards and conforms to the requirements of safety and EMC. The inverter had passed rigorous tests to ensure it ran sustainably and reliably before shipment. When a fault occurs, the corresponding error message will be shown on the OLED display, and in this case, the inverter might stop feeding into the grid.
  • Page 83 Error Message Description Solution GFCI Fault The inverter detects that the 1. Restart the inverter. ground leakage current exceeds 2. Check whether the PV panels, cables, and the limitation. connectors are waterlogged or damaged. 3. Seek help from the installer or manufacture. PV Over Voltage Reduce the number of PV panels to make sure PV input voltage exceeds the...
  • Page 84 Error Message Description Solution cable are in poor connection on ground connection is abnormal. AC side. 2. restart the inverter. 3. Seek help from the installer or manufacture. 1. Restart the inverter. Inverter's internal fan got failed Internal Fan Fault 2.

  • Page 85: Inverter Maintenance

    Error Message Description Solution Inverter OC The load power exceeds the range 2. Check whether back-up side is short circuit. of its limit of inverter in off-gird mode SCI Fault Internal communication got failed. 1. Restart the inverter. Caused by a strong external 2.

  • Page 86: Battery Maintenance

    Note: Restart the inverter only after removing the fault that impairs safety performance. Never arbitrarily replace any internal components. For any maintenance support, please get in touch with Wattsonic. Otherwise, Wattsonic shall not be held liable for any damage caused.

  • Page 87: Appendix

    Appendix 9.1 Technical parameters Module specification Master BMS/Sub-Master BMS Operation Voltage 150-900V/ 900-1500V (Need to confirm upon order) Max. Charge/Discharge Current 100A Recommend Charge/Discharge Current 100A Pre-charge, Over-Less Voltage/Over-Less Temperature Protection, Functions Cells Balancing/SOC-SOH calculationetc. Communication Protocol/Connector Type CAN/RS485 ModBus, TCP/IP/WiFi/LAN/GPRS Power Connection Type Phoenix User Interface...

  • Page 88: Product Specification

    Product specification Model 25K-100A-3P 30K-100A-3P PV Input Start-up voltage (V) Max. DC input voltage (V) 1000 1000 Rated DC input voltage (V) MPPT voltage range (V) 200-850 200-850 No. of MPP trackers No. of DC inputs per MPPT Max. input current (A)
  • Page 89 Model 25K-100A-3P 30K-100A-3P Efficiency Max. efficiency 98.8% 98.8% European efficiency 98.3% 98.3% Protection DC reverse polarity protection Integrated Battery input reverse connection Integrated protection Integrated Insulation resistance protection Integrated Surge protection Integrated Over-temperature protection Integrated Residual current protection Integrated (Frequency shift)
  • Page 90 Model 36K-100A-3P 40K-100A-3P Battery Side Battery type Lithium Battery (with BMS) Battery communication mode Battery voltage range (V) 135 - 750 135 - 750 Maximum charging current (A) Maximum discharge current (A) Grid Side Rated output power (kW) 36.0 40.0 Max.
  • Page 91 Model 36K-100A-3P 40K-100A-3P General Data Over voltage category PV: 2 ; Main: 3 Dimensions (mm) 800*620*300 (W*H*D) Weight (KG) Protection degree IP65 Standby self-consumption (W) < 15 Topology Transformerless Operating Temperature Range (°C) - 30 ~ 60 Relative Humidity (%) 0 ~ 100 Operating Altitude (m) 3000 (>...
  • Page 92 Model 50K-100-3P 40K-100-3P-P 50K-100-3P-P Back-up Side Rated output power (kW) 50.0 40.0 50.0 Max. output power (kW) 55.0 44.0 55.0 Rated output apparent power (kVA) 50.0 40.0 50.0 Max. output apparent power (kVA) 55.0 44.0 55.0 Rated output current (A) 75.0 60.0 75.0...

  • Page 93: Contact Information

    * Max apparent power from the grid means the maximum power imported from the utility grid used to satisfy the backup loads and charge the battery. * Wattsonic reserves the right to modify the technical datasheet and apperance of the product in the cataloge without prior advice to the users.

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