Growatt WIT 29.9-50K-XHU User Manual
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Growatt WIT 29.9-50K-XHU User Manual

Growatt WIT 29.9-50K-XHU User Manual

Hybrid inverter
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Summary of Contents for Growatt WIT 29.9-50K-XHU

  • Page 1 WIT 29.9-50K-XHU Hybrid Inverter User Manual...

  • Page 2: Table Of Contents

    3 Product Description ..............6 3.1 Overview ....................... 6 3.2 Basic Data......................8 3.3 Nameplate ......................10 3.4 Operating Principle of WIT 29.9-50K-XHU ............11 3.5 Storing the WIT Inverter..................12 3.6 Supported Grid Types..................12 3.7 AFCI Function ..................... 12 3.7.1 AFCI Function Description ................
  • Page 3 Connection on the Battery Side ................ 37 6.4.1 Connecting the Main Power Cable of the Battery ......... 38 6.4.2 Connecting the Battery BMS-AC Terminal ............. 40 Connecting Communication Cables ..............41 6.5.1 COM1 Connection .................... 41 6.5.2 COM2 Connection ................... 46 6.5.3 USB connection....................
  • Page 4 11 Decommissioning the WIT Inverter ........123 12 Warranty ................124 12.1 Conditions ...................... 124 12.2 Disclaimer ...................... 124 13 Contact Us ................125...

  • Page 5: Notes On This Manual

    1 Notes on this manual 1.1 Introduction This manual is intended to introduce the WIT 29.9-50K-XHU Hybrid Inverters manufactured by Shenzhen Growatt New Energy Co., Ltd. (hereinafter referred to as Growatt) in terms of their installation, operation, commissioning, maintenance and troubleshooting. Please read this manual carefully before using the product, and keep it in a convenient place for further reference.

  • Page 6: Safety Precautions 2

    Safety Precautions 2 2.1 Safety Instructions 1) Please read this manual carefully before installation. Damages caused by failure to follow the instructions in the manual are beyond the warranty scope. 2) Only qualified and trained electrical technicians are allowed to perform operations on the WIT Inverter.
  • Page 7 Electrical Connections: Ÿ Before connecting cables, ensure that the DC switches of the WIT Inverter are OFF, and turn off the switch and breaker on the AC side and the battery side. Otherwise, high voltages may cause severe injuries. Ÿ It must be operated by qualified and trained electrical technicians.

  • Page 8: Symbol Conventions

    Others: Upon receiving the product, check if the contents are intact and Ÿ complete. If any damage is found or any component is missing, please contact your distributor. The maximum PV input voltage cannot exceed 1100V. The Ÿ battery input voltage cannot exceed 1000V. For the WIT Inverter that will not be put into operation in the Ÿ...

  • Page 9: Label Description

    2.3 Label Description Symbol Name Meaning High voltages exist after the WIT Inverter is powered on. Only qualified and trained High voltage electrical technicians are allowed to perform operations. Do not touch a running inverter because it Burn warning generates high temperatures on the shell. Indicates the position for connecting the PE Grounding cable.

  • Page 10: Product Description 3

    Product Description 3 The front view and the bottom view of all models are identical. NOTICE 3.1 Overview Front view: Fig 3.1 Front view Bottom view: Fig 3.2 Bottom view...
  • Page 11 Left view: Fig 3.3 Left view of WIT 29.9-50K-XHU Right view: Fig 3.4 Right view of WIT 29.9-50K-XHU...

  • Page 12: Basic Data

    Battery terminal Heat sink Indicator description label Nameplate 3.2 Basic Data Table 3.2 Dimensions and weight Size（mm) Weight Model (kg) Height Width Depth The WIT Inverter WIT 29.9-50K-XHU 92kg without package The WIT Inverter WIT 29.9-50K-XHU 1080 106kg with package...
  • Page 13 Fig 3.5 Fig 3.6...

  • Page 14: Nameplate

    3.3 Nameplate The figure below shows the nameplate of WIT 50K-XHU as an example. The nameplate figure is for reference only. The actual nameplate prevails. For the specifications, please refer to Section 10 Product Specifications. Fig 3.7 Nameplate...

  • Page 15: Operating Principle Of Wit 29.9-50K-Xhu

    WIT inverter. NOTE: WIT 29.9-50K-XHU models have 4 MPPT routes. DC/DC DC Relay...

  • Page 16: Storing The Wit Inverter

    Fix the time and date before connecting the inverter to the grid. For details, see 7.1 Commissioning the WIT Inverter. 3.6 Supported Grid Types Grid connection modes for WIT 29.9-50K-XHU Hybrid Inverters are shown in Fig 3.9. 220V/230V 380V/400V 3P4W 3P3W Fig 3.9 380V/400V system (type Y/△)

  • Page 17: Clearing The Alarm

    NOTE: 1. The AFCI Function of the WIT Inverter is disabled by default. If you want to enable the AFCI, please contact Growatt support. 2. Do not connect the Maximum Power Point Trackers (MPPTs) on the DC side in parallel as it might trigger the AFCI mistakenly.

  • Page 18: Anti-Pid Function

    The Anti-PID function integrated in Growatt inverters can effectively reverse the PID effect by applying DC voltage to the PV modules during nighttime, enhancing solar energy harvest and...

  • Page 19: Inspection Upon Delivery

    4 Inspection upon delivery Unpacking and inspection 1> Before unpacking the WIT Inverter, check the shipping box for any externally visible damage. If any damage is found, contact the shipping company as soon as possible. 2> After unpacking the WIT Inverter, check if the scope of delivery is intact and complete.

  • Page 20: Installation 5

    Installation 5 5.1 Basic Installation Requirements A. The installation location must be suitable for WIT's weight for a long period time. (Refer to Table 3.2 for the weight of the WIT Inverter). B. Ensure that the installation position is suitable for the dimensions of the WIT Inverter.

  • Page 21: Installation Environment Requirements

    I. Reserve enough clearance around the WIT Inverter to ensure sufficient space for heat dissipation and operation. Leave a clearance of 0.6 m on both sides, approximate 0.6 m above and below the WIT Inverter, and 1 m in front of the inverter.
  • Page 22 B. To reduce the de-rate performance of the inverter and extend inverter's life span, we strongly recommend you install an awning. For the distance between an awning and inverter, please refer to following figure. 380mm 320mm 650mm 650mm Fig 5.4 C.

  • Page 23: Moving The Wit Inverter

    ≥800 Fig 5.5 D. Do not place the WIT Inverter in an enclosed and narrow space for operation. Fig 5.6 5.3 Moving the WIT Inverter e inverter is heavy, please move it with care and keep balance Ÿ to avoid personnel injury. not place the inverter with its wiring and signal terminals at Ÿ...

  • Page 24: Wall Mount Bracket Installation

    1> As shown in Fig 5.6, two persons are required to lift the inverter out of the package and transport it to the installation position. 2> When you are moving the inverter, please keep the balance. Notice: There will be front and bottom mark on the package. Position of the lifting handle One handle on each side Fig 5.7...

  • Page 25: Installing The Inverter

    STEP 1: Use the wall mount plate as a template, drill holes into the wall and insert the expansion bolts as Fig 1-3 show. STEP 2: Tighten the bolts to attach the wall mount bracket onto the wall securely as illustrated below. Fig 5.9 Note: 1>...
  • Page 26 Fig 5.10 Wall-mounted installation Ensure that the wall meets the load-bearing requirements of the equipment. For details about the weight, see Table 3.2. NOTICE...

  • Page 27: Electrical Connections

    6 Electrical Connection Fig 6.1 Wiring diagram of the system with a single WIT 50K-XHU inverter (Gen mode)
  • Page 28 Fig 6.2 Wiring diagram of the system with a single WIT 50K-XHU inverter (with the WIT-XHU battery terminal junction box) NOTE: 1. The WIT-XHU battery terminal junction box is optional; 2. When one cluster of battery is connected, run the power cables through the battery terminal junction box and the BMS communication cable should be connected to BMS1 on the COM1 port.
  • Page 29 Fig 6.3 Wiring diagram of the system with a single WIT 50K-XHU inverter and two meters (AC couple mode)
  • Page 30 Fig 6.4 Wiring diagram of the system with single WIT 50K-XHU inverters in smart load mode...
  • Page 31 Battery1 BMS1 BMS3 Battery 3 Grid Secondary Load BMS AC3 Grid Load P1:Grid side BMS AC1 P2:PCS side Battery1 BMS1 Bypass Breaker Breaker BMS3 Battery Grid RS485 PV 1 Breaker BMS AC3 Load Load Breaker BMS AC1 Battery1 BMS1 Primary Load BMS3 Battery 3 Grid...
  • Page 32 Fig 6.6 Meter wiring method...
  • Page 33 Fig6.7(a): Neutral line of alternative supply must not be isolated or switched. Fig6.7(b): Neutral line of alternative supply can be isolated or switched. WIT 29.9-50K-XHU LOAD GRID Battery Grid...

  • Page 34: Connecting The Ground Cables

    WIT Inverters, the metal racks of the PV modules and the batteries should be connected to the same area to achieve equipotential bonding. 4. The position of the ground points of the WIT 29.9-50K-XHU Hybrid Inverter is shown in Fig 6.8. Fig 6.8 Ground points NOTE: 1.

  • Page 35: Connection On The Ac Side

    AC circuit breaker needs to be installed on the grid side, ensuring a safe disconnection between the WIT Inverter and the upstream input when an exception occurs. 1. Recommended AC breaker specifications for WIT 29.9-50K-XHU models Rated voltage of the circuit Rated current of the circuit...
  • Page 36 2. Recommended load breaker specifications for WIT 29.9-50K-XHU models Rated voltage of the circuit Rated current of the circuit Device type breaker breaker WIT 29.9K-XHU 400V WIT 30K-XHU 400V WIT 36K-XHU 400V WIT 40K-XHU 400V 100A WIT 50K-XHU 400V 125A 3.
  • Page 37 Recommended power cable specifications: 1.Recommended AC power cable specifications for WIT 29.9-50K-XHU models. GRID Recommended LOAD Recommended GEN Recommended Device type cable specification cable specification cable specification WIT 29.9K-XHU 35mm 25mm 35mm WIT 30K-XHU 35mm 25mm 35mm WIT 36K-XHU 35mm...
  • Page 38 GRID Terminal LOAD Terminal GEN Terminal Fig 6.11 AC terminal wiring position and diagram NOTE: 1. Determine the stripped length based on the wiring terminal specifications (recommended length: 22-26 mm). Crimp the cable and terminal using a crimper as shown below. Loosen the PG type cable gland and route the cables through it.

  • Page 39: Connection On The Pv Side

    Ÿ Ensure that the following conditions are met; Otherwise, fire WARNING hazard or inverter damage may occur. Growatt is not liable for the consequence and it is beyond the warranty scope. NOTE: 1. When exposed to sunlight, PV modules will generate voltage. High voltages presented in the PV strings connected in series could be fatal.
  • Page 40 Fig 6.14 PV terminals Procedure for connecting cables on the PV side: 1. Strip 6-8 mm of the insulation layer of the DC cables. 2. Insert the exposed core wires into the crimping area of the wiring terminal and crimp them using a crimping plier; 3.

  • Page 41: Connection On The Battery Side

    Table 6.2 Cable specifications on the PV side Device type Recommendation cable specifications WIT 29.9K-XHU 4-6mm WIT 30K-XHU 4-6mm WIT 36K-XHU 4-6mm WIT 40K-XHU 4-6mm WIT 50K-XHU 4-6mm NOTE: 1. For a single WIT Inverter, connect the ground cable of the inverter. For a system with multiple WIT Inverters connected in parallel, connect the ground cables of all inverters and the metal racks of the PV modules to the same area to ensure equipotential bonding.

  • Page 42: Connecting The Main Power Cable Of The Battery

    Table 6.3 Cable specifications on the Battery side Device type Recommendation cable specifications WIT 29.9K-XHU 16mm WIT 30K-XHU 16mm WIT 36K-XHU 16mm WIT 40K-XHU 16mm WIT 50K-XHU 16mm 6.4.1 Connecting the Main Power Cable of the Battery Preparation: 1. Check that the battery terminals of the WIT Inverter are intact; 2.
  • Page 43 Step2 Strip the cable Step1 Route the cable 12±0.5 Step3 Crimp the cable Step4 Tighten the terminal ≤1 Step 5 Secure the battery terminal anti- Step 6 Route the battery cables through the dismantle element, marked as F in the battery terminal anti-dismantle element, packing list onto the inverter using the marked as E in the packing list, and insert it...

  • Page 44: Connecting The Battery Bms-Ac Terminal

    6.4.2 Connecting the Battery BMS-AC terminal NOTE: Perform operations according to on-site requirements. Procedure for connecting the battery BMS-AC terminal: 1. Open the right cover plate of the inverter, the position of which is shown in Fig 6.16; 2. Find the corresponding terminals from the accessory kit. Refer to Table 6.3 to connect the terminals;...

  • Page 45: Connecting Communication Cables

    6.5 Connecting Communications Cables 6.5.1 COM1 Connection The COM1 terminal of the WIT 29.9-50K-XHU Inverter includes 9 RJ45 ports. It is used for parallel connection via PARA-IN and PARA-OUT communication terminals, battery communication via BMS1, BMS2 and BMS3 terminals, and external equipment communication via RS485 and DRMs function.
  • Page 46 15±1mm Fig 6.18 Loosen the cable gland and remove the watertight caps inside the cable gland based on the number of the cables and keep the unused holes with watertight cap. Lead the cable into the holes in the cable gland (the 5-hole fastening rings inside the cable gland are with openings on the side.
  • Page 47 Table 6.5 COM1 communication terminal description Definition of battery communication terminal Silk screen Definition of signal Function and Note BAT RS485_B BAT RS485_A BAT1 DI_1 BAT1 CAN_H Communication of battery1 BMS1 (mandatory) BAT1 CAN_L BAT1 DI_2 BAT1 WAKE-(GND.S) BAT1 WAKE+ BAT RS485_B BAT RS485_A BAT2 DI_1...
  • Page 48 Definition of battery communication terminal Silk screen Definition of signal Function and Note RS485_1B GND.S RS485-1: Meter2/ShineBus/ RS485_1B RS485-1 ShineMaster (1/4/5) RS485_1A RS485-3: EMS/VPP(7/8) RS485_3B RS485_3A RS485_1B GND.S RS485-1: Meter2/ShineBus/ RS485_1B RS485-2 ShineMaster (1/4/5) RS485_1A RS485-3: EMS/VPP(7/8) RS485_3B RS485_3A RS485_2B GND.S RS485_2: METER1 output (export limitation meter...
  • Page 49 Definition of battery communication terminal Silk screen Definition of signal Function and Note DRM1/5 DRM2/6 DRM3/7 DRM4/8 DRMS/RCR/DI function GND.S Sc_A/H PL_CANH PARA-IN Parallel input PL_CANL Sc_B/L GND.S master_CAN GND.S Sc_A/H PL_CANH PARA-OUT Parallel output PL_CANL Sc_B/L Slave_CAN GND.S...

  • Page 50: Com2 Connection

    6.5.2 COM2 Connection The COM2 terminal is used for Generator start-up and emergency stop. 1. Strip 23-27 mm of the cable jacket and 8-12mm of the wire insulation. 2. Crimp the COM2 cable and the terminal using a crimping plier, and then tighten the insulation sleeve;...
  • Page 51 NOTE: The external communication terminal of the WIT 29.9-50K-XHU Inverter is a 4-pin connector. The matching terminal is in the accessory kit. The connection procedure is as follows: 1. Connect the communication cable to the corresponding terminal as required. COM2 terminal(user side) Fig 6.22 COM2 communication terminal...

  • Page 52: Usb Connection

    6.5.3 USB connection The WIT-XHU series inverter is equipped with a USB interface as standard, which can be connected to a USB to WiLAN-X2 monitoring module for remote monitoring. In addition, you can also quickly upgrade the inverter software through the U disk. Steps to install the monitoring module: 1>...

  • Page 53: Post-Installation Checks

    6.6 Post-installation Checks The following table lists the post-installation items to be checked: Position Item Check item Ground cable Check the cable specifications; ensure connected to the that the cable has been securely chassis fastened Check the cable specifications; ensure Ground cable on the that the cable has been securely AC side...
  • Page 54 Position Item Check item Ensure that the connection is correct and COM1 secured; the sealing rubber ring is properly seated into the gland Ensure that the connection is correct and Communication COM2 secured; the sealing rubber ring is terminals properly seated into the gland Ensure that the connection is correct and secured;...

  • Page 55: Commissioning

    Section 8.1.1. Tap Control > Set Inverter Time, then enter the password “growatt+date”. For instance, if the date is Feb. 28, 2024, the password would be “growatt20240228”.

  • Page 56: Mode Of Operation

    7.1.2.2 Set the Date & Time Automatically Connect the WIT Inverter to the server following the procedure specified in Section 8.1.2 when the inverter is powered on, then the WIT Inverter will update its date and time automatically. 7.2 Mode of operation 7.2.1 Waiting Mode When the PV voltage is greater than 180V, the WIT Inverter will be powered on and enters the waiting mode.

  • Page 57: Operating Mode

    7.2.2 Operating Mode 7.2.2.1 Operating Mode of WIT 29.9-50K-XHU Load First: In Load First mode, the WIT inverter prioritizes supplying the solar power and battery energy to the loads. If Export Limitation is disabled, the surplus solar power can be fed to the grid, but the battery energy will not be exported to the grid;...
  • Page 58 Secondary Load Grid Battery Meter Primary Load Zero export to GRID: In this mode, there is no output at the inverter's GRID port. The solar and battery power can only by supplied to Primary Loads via the LOAD port. The meter is not required.
  • Page 59 7.2.2.2 System Operating Strategies of WIT 29.9-50K-XHU TOU (Time of use): Configure the system to work in the preset mode during different time segments based on the peak-valley periods and electricity price. Setting items include: the operating mode, enable/disable AC Charging function (charge from grid). During the time not specifically configured, it will operate according to the system settings.
  • Page 60 Grid Peak Shaving: Set the forward power flow threshold A: once the load power on the external meter is greater than this value, the inverter will reduce charging power and boost power out until it reaches the maximum operating power of the WIT inverter. Set the reverse power flow threshold B: once the grid feed-in power on the external meter is greater than this value, the inverter will reduce output power and boost charging power until it reaches the maximum operating power of the...
  • Page 61 Micro-grid (PV-ESS-DG Power System): A generator is connected to the GEN port: If the grid power is normal, the WIT inverter will work in the grid-tied mode: 1. If the power generated by the grid-tied inverter is sufficient to support the loads, the surplus power will be used to charge the battery;...

  • Page 62: Fault Mode

    7.2.3 Fault Mode The intelligent control system of the WIT Inverter monitors and adjusts the system status in real time. When the WIT Inverter detects an alarm, the corresponding status light will turn red and the OLED will display the alarm. When the WIT Inverter detects a fault, the system status indicator and the corresponding status light will turn red and the OLED will display the fault.

  • Page 63: Led And Oled Display Panel

    7.3 LED and OLED Displays Panel The LED and OLED display panel demonstrating the running status of the WIT Inverter is shown in the Fig 7.1. The symbol description is shown in Table 7.1; The user interfaces are shown in Fig 7.2, and the LED indicator description is shown in Table 7.2.
  • Page 64 Output Power ROWATT startup page display page AFCI Fault Programming update page alarm page Fig 7.2 User interfaces Table 7.2 Indicator description Status Meaning The system is not operating Steady green The system is operating properly Blinking green at long The system is in standby mode or intervals performing an upgrade...
  • Page 65 Status Meaning Off-grid mode is disabled Off-grid mode is enabled and has no Steady green faults or alarms Off-grid mode is enabled and a fault Steady red or alarm is reported on the AC side The battery voltage is below the operating voltage SOC of all batteries connected is Steady green...

  • Page 66: Monitoring

    Monitoring 8.1 Remote Monitoring Growatt WIT 29.9-50K-XHU Hybrid inverters support remote monitoring, which can be enabled by installing a datalogger. For more information on operation and configuration methods, see the following link. Compatible Installation & Operation Guide Linkage Datalogger https://oss- ShineWiLAN-X2 eu.growatt.com/common/knowledgeShareH5No?lang=en...
  • Page 67 Home Screen of ShinePhone Dashboard: displays the critical information of all power plants under the account, such as the total yield, the total revenue and the status of the device. Please refer to the figures below:...
  • Page 68 2. Plant: displays the plant list and the basic information about each PV plant, as shown in the figure below. You can select your target plant to view detailed information. Detail Page of the WIT Inverter: To access details about the WIT Inverter or related devices: (1) Tap “Plant”...
  • Page 69 Ø Set Inverter On/Off Tap Control > Set Inverter On/Off; you can power on/off the inverter, as the figure shows. Ø Set the Time of the Inverter Tap Control > Setting Time; you can set the local time, as the figure shows.
  • Page 70 Ø Set the Mode Transfer and the On-/Off-grid/GEN Mode Tap Control > Mode Transfer and On-/Off-grid/GEN Mode setting. Two options are available: Automatic mode and Manual mode. If the Manual mode is selected, you can set the inverter to work in the on-/off-grid, or generator mode, as the figure shows.
  • Page 71 (4) On the “Log” screen, you can view the fault/warning message and suggested trouble-shooting measures.
  • Page 72 (5) On the “Control” screen, you can configure the WIT Inverter. The password is in the format of “growatt + the current date”, e.g. growatt20240228. Ø Set Working Modes for Different Time Periods Tap Control > Mode Selection and Time Setting; 6 time segments are configurable.
  • Page 73 Ø Set the Off-grid Parameters Tap Control > Off-grid Setting, you can enable/disable the off-grid mode, set the off-grid frequency (50Hz/60Hz) and the off-grid voltage (220V/230V/ 240V /277V/127V), complying with the safety regulations. Ø Set Whether to Apply the Following PF Command Tap Control >...
  • Page 74 Ø Set AC Charging and Discharging Power Tap Control > AC Charging /Discharging Power, you can configure the AC charging/discharging power and choose whether to remember your settings, as the figure shows. Ø Set the Storage Parameters Tap Control > Storage Parameter Setting, you can enable/disable the AC charging function (Charge from grid), the charging cutoff SOC (100 is recommended) and the discharging cutoff SOC (10 is recommended), as the figure shows.
  • Page 75 Ø Set the Generator Parameters Tap Control > Generator Parameter Setting, you can enable/disable the Generator function, set the Generator Start/Stop SOC and the Generator power, as the figure shows. Ø Set the Reactive Power Tap Control > Set reactive power, you can select the corresponding PF mode and whether to remember your settings, as the figure shows.
  • Page 76 Ø Set the Export Limitation Parameters Tap Control > Export Limitation, you can enable/disable the export limitation function according to local regulations. If the Export Limitation function is enabled, you can set the Export power limit, as the figure shows. Ø...
  • Page 77 Ø Set the Power Factor Tap Control > Set power factor, you can set the PF value, ranging from -1 to 1, as the figure shows. Ø Set the Device Type of GEN Port Tap Control > Device Type of GEN port: you can set the device type connected to the GEN port: Generator, PV Inverter, or Smart Load, as the figure shows.
  • Page 78 Ø Set the Battery Wiring Method Tap Control > Battery Wiring Method, you can set the wiring between the inverter and the battery: three battery clusters are connected to the three ports respectively, or one battery cluster is connected to the three ports. Ø...
  • Page 79 Ø Set the Battery Enable Tap Control > Battery Enable, you can enable/disable Battery_1, Battery_2 and Battery_3, as the figure shows. Ø Set the Battery_1/Battery_2/Battery_3 Tap Control > Battery_1/Battery_2/Battery_3 Settings, you can set the Battery- related parameters (the battery capacity, ranging from 0 to 2000Ah; the maximum charging/discharging power, ranging from 0 to 200kw;...
  • Page 80 Ø Set the Customized PF Curve Tap Control > Customize PF curve, you can set the power percentage and the power factor of each point, as the figure shows. (6) Edit: you can change the device name as the figure shows.
  • Page 81 3. GroHome: displays the home energy system, including four sections: “PV linkage”, “My device list”, “My room” and “My scene”.
  • Page 82 4. Service: includes the common faults and troubleshooting suggestions, as shown in the figure below. Should you encounter any problem about our product, you can contact the Growatt after-sales support or refer to the related documents.

  • Page 83: Remote Monitoring On The Shineserver Webpage

    8.1.2 Remote Monitoring on the ShineServer Webpage 1.Open the browser, then enter https://server.growatt.com/login?lang=en in the address box to access the login page. Click “Register an Account” if you do not have an account.
  • Page 84 2. After the Registration Page is displayed, fill in the information as required and click to agree to the Privacy Policy. Fields marked with the “·” icon are mandatory. Click next, it will bring you to the “Add Plant” page. Then click “Back to Login”...
  • Page 85 3. On the Login screen, enter the username and the password to log in to the home screen. 4. After accessing the home screen, the “Add Plant” window will pop up. Fill in the information as required (marked with “·”) and click “Yes”. If the plant has been created, you can select the target plant on the home screen.
  • Page 86 5. Click the target plant and the detailed page will be displayed, click “Add Data Logger” on the upper right corner to add the datalogger connected to the inverter. 1) Enter the serial number (SN) of the datalogger 2) Select the target power plant. You might need to enter the verification code of the datalogger as prompted.
  • Page 87 6. After adding the datalogger successfully, you can click Dashboard to view details about related devices. Dashboard: 1. Running status and energy display 1) Plant List: select the target plant from the drop-down list 2) Device Type: Select the device from the drop-down list 3) Input/Search Number: Upon the initial search, enter the serial number of the specific device;...
  • Page 88 2. Energy Trend 1) System Production: displays the power for self-consumption and the power exported to the grid 2) Date: select a specific date, you can view the energy data in a specific period, day, month or year 3) Load Consumption: displays the power for self-consumption and the power drawn from the grid 4) Display options: to show/hide the content by clicking the corresponding color circle.
  • Page 89 4. My PV devices This section displays all devices involved in the selected PV plant (online devices are shown first, followed by offline devices). Energy 1. Parameter comparison 1) Device type: Select the device type for comparison, such as the WIT inverter or the meter 2) Date: select a specific date, you can view the energy data in a specific period, day, month or year.
  • Page 90 On the Log page, you can view the error code and the fault description. Setting 1. Account management 1) Modify your account information 2) Change the password: you can change the password on this page 2. Download A range of documents are available for download.
  • Page 91 Device 1. Datalogger 1) Serial number: each datalogger has a specific SN, which can be used to search for the device 2) User name and the PV plant to which the datalogger is connected; 3) Connection status: connected or disconnected; 4) Data update interval;...
  • Page 92 1) Enter the serial number to find the device; 2) Device model; 3) User name and the PV plant to which the device is connected; 4) Daily and monthly energy yield; 5) Serial number of the selected device; 6) Operating status: operating, standby, disconnected or faulty; 7) Serial number of the datalogger connected to the device;...
  • Page 93 10.2) Powering on/off the device: you can power on/off the device remotely 10.3) Set the time: you can set the time for the device...
  • Page 94 10.4) Mode switch: you can choose to switch the working mode manually or automatically. If “Manual” is selected, you can set the device to operate in on-grid or off-grid or generator mode. Generally, you are advised to select “Automatic” mode switch.
  • Page 95 10.5) High grid voltage limit (voltage upper threshold of grid connection) 10.6) Low grid voltage limit (voltage lower threshold of grid connection)
  • Page 96 10.7) High grid frequency limit (frequency upper threshold of grid connection) 10.8) Low grid frequency limit (frequency lower threshold of grid connection)
  • Page 97 10.9) Set off-grid mode on/off: you can set whether to operate the inverter in the off-grid mode 10.10) Off-grid frequency: two options are available: 50Hz/60Hz...
  • Page 98 10.11) Off-grid voltage: you can set the value to 220V/230V 10.12) Save the PF Command: you can set whether to save the PF command setting...
  • Page 99 10.13) AC charging power: you can set the inverter's maximum output power 10.14) Charge cutoff SOC: you can set the battery charge cutoff SOC (100 is recommended)
  • Page 100 10.15) Enable AC charging: 10.16) AC discharge power: you can set the battery discharge power...
  • Page 101 10.17) Discharge cutoff SOC: you can set the battery discharge cutoff SOC (10 is recommended) 10.18) Generator Start SOC: once the battery SOC is lower than this value, the generator will start up automatically...
  • Page 102 10.19) Generator Stop SOC: once the battery SOC is higher than this value, the generator will shut down 10.20) Generator Enable: you can select to enable/disable the generator...
  • Page 103 10.21) Set Reactive Power: you can set the corresponding PF mode and select whether to save the configured values 10.22) Export Limitation: You can enable/disable the export limitation function according to the local applicable regulations and set the export limit power rate if it is enabled...
  • Page 104 10.23) Single-phase Export Limitation 10.24) Set PF value: you can set the PF value, ranging from -1 to 1.
  • Page 105 10.25) Generator Power: you can set the generator power 10.26) Battery Wiring Method: you can set the wiring between the inverter and the battery: three battery clusters are connected to the three ports respectively, or one battery cluster is connected to the three ports.
  • Page 106 10.27) Externally connected PV inverter Start SOC: you can set the Externally connected PV inverter Starts SOC 10.28) Externally connected PV inverter Stop SOC: you can set the Externally connected PV inverter Stops SOC...
  • Page 107 10.29) Externally connected PV inverter on: you can select whether to on the Externally connected PV inverter 10.30) Battery1/2/3 On: you can select to enable/disable the Battery1/2/3...
  • Page 108 10.31) Battery_1/2/3 Settings: you can set Battery-related parameters, including the battery capacity, ranging from 0 to 2000 Ah; the maximum charging/discharging power, ranging from 0 to 200 kW; the maximum charging/discharging current, ranging from 0 to 200A; the maximum battery charging voltage, ranging from 200V to 900V; and the battery discharge cutoff voltage, ranging from 200 V to 900V.
  • Page 109 10.32) Customized PF curve: you can set the power percentage and the power factor for each point of the PF curve Meter 1) Enter the serial number of the meter or the datalogger to search for the desired meter 2) Meter type 3) The datalogger worked in conjunction with the meter 4) Status of the meter 5) The serial number of the WIT inverter to which the meter is...

  • Page 110: System Maintenance 9

    System Maintenance 9 9.1 Routine Maintenance 9.1.1 Clean the Chassis Ÿ Before performing any operation, disconnect the AC and DC power supply and wait for 5 minutes after the system is powered off. Ÿ Wipe the dust off the chassis and clean the chassis with a DANGER moistened cloth.
  • Page 111 Fig 9.1 Fig 9.2 Position of the fan fixing plate 3> Disconnect the fan connector, remove the fan fixing plate with a screwdriver, and remove the fan. 4> Clean the fan cover, fan blades, and the heat sink, or replace the fan. (1) Use an air pump to clean the heat sink, and use a brush or wet cloth to clean the fan and the its cover;...

  • Page 112: Troubleshooting

    Beware of high voltages which can cause electric shocks. 9.2.1 Warning Warnings indicate abnormal situations of WIT 29.9-50K-XHU Hybrid Inverters, leading to a reduction in the output power. The warning sign will disappear once the fault is rectified by restarting the inverter or reconfiguring the system. The warning codes are shown in Table 9.1:...
  • Page 113 2. If the DC voltage is within the threshold specified range and the error message persists, contact Growatt support. 1. Check the polarity of the PV terminals. PV string is reversely PV Reversed 2. If the error message persists, contact connected Growatt support.
  • Page 114 Startup configuration is correct. requirements of grid Warning 412 2. Check if the PV voltage is within the connection are not specified range. 3. Restart the inverter. If the error message persists, contact Growatt support.
  • Page 115 1. Check if the battery is properly Battery connected. Warning 501 disconnected 2. If the error message persists, contact Growatt support. 1. Check if the battery voltage is within the permissible range. Battery voltage too 2. Check if the battery is correctly Warning 502 high connected.
  • Page 116 2. If the error message persists, contact Growatt support. DC component over 1. Restart the inverter.2. If the error Warning 601 high in output message persists, contact Growatt voltage support. 1. Check if the load power exceeds the upper limit. Warning 605 Off-grid bus voltage 2.

  • Page 117: Error

    The error code indicates that the device is damaged or the configurations are abnormal. Only qualified and trained electrical technicians are allowed to rectify the faults. The error message will disappear after the fault is rectified. If the problem persists, please contact Growatt. Table 9.2 Error codes Error Code...
  • Page 118 NE Abnormal the N line and the PE 2. If the error message persists, please cable is abnormal contact Growatt support. 1. Check the grid frequency and restart Grid frequency is the inverter. AC F Outrange beyond the 2.
  • Page 119 Suggestion 1. Restart the inverter. Bus voltage Error 409 2. If the error message persists, please abnormal contact Growatt support. 1. Check the wiring of the Internal communication board after shutdown. Error 411 communication 2. If the error message persists, please failure contact Growatt support.
  • Page 120 Description Suggestion 1. Restart the inverter. Error 425 AFCI self-test failure 2. If the error message persists, please contact Growatt support. 1. Restart the inverter. PV current sampling Error 426 2. If the error message persists, please abnormal contact Growatt support.
  • Page 121 1. Check if the battery terminals are Battery terminals reversely connected. Bat Reversed reversed 2. If the error message persists, please contact Growatt support. 1. Check the wiring of the battery Battery open- terminals. Error 506 circuited 2. If the error message persists, please contact Growatt support.
  • Page 122 Description Suggestion 1. Restart the inverter. Error 603 Soft start failed 2. If the error message persists, please contact Growatt support. 1. Restart the inverter. Off-grid output Error 604 2. If the error message persists, please voltage abnormal contact Growatt support.

  • Page 123: Product Specifications

    10 Product Specifications Table 10.1 WIT 29.9/30/36/40/50K-XHU specification Model WIT 29.9K WIT 30K WIT 36K WIT 40K WIT 50K -XHU -XHU -XHU -XHU -XHU Specifications Input data(PV) Max. recommended PV power(for module 59.8kW 60kW 72kW 80kW 100kW STC) Max. DC voltage 1100V Start voltage 195V...
  • Page 124 Model WIT 29.9K WIT 30K WIT 36K WIT 40K WIT 50K -XHU -XHU -XHU -XHU -XHU Specifications Nominal AC grid 50Hz/60Hz 45-55Hz/55-65Hz frequency/range Max. input/output 90.6A/ 100A/ 120A/ 133.3A/ 166.7A/ current 45.3A@220V 50A@220V 60A@220V 66.7A@220V 83.3A@220V Max. Continuous AC 200A Passthrough Power factor >0.99...
  • Page 125 Model WIT 29.9K WIT 30K WIT 36K WIT 40K WIT 50K -XHU -XHU -XHU -XHU -XHU Specifications Efficiency Max. efficiency 98.10% European efficiency 97.2% Protection devices DC reverse polarity protection Battery reverse protection Insulation resistance monitoring AC/DC surge Type II protection AC short-circuit protection...
  • Page 126 Model WIT 29.9K WIT 30K WIT 36K WIT 40K WIT 50K -XHU -XHU -XHU -XHU -XHU Specifications Relative humidity 0~95% PV connection AC connection Cable gland +SC terminal Battery connection Quick connection plug Interfaces Display OLED+LED/APP RS485/CAN/USB RS485/CAN/USB WIFI/4G/LAN WIFI/LAN Warranty: 5 / 10 Yes/Opt.
  • Page 127 Handle the WIT Inverter that will not be operated in the future properly. 1> Disconnect the external AC circuit breaker and prevent accidental reconnection due to improper operation. 2> Set the DC switches to the OFF position. 3> Disconnect the upstream battery circuit breaker. 4>...
  • Page 128 Growatt guarantees maintenance and replacement of the defective product under warranty. 1. Growatt will ask users to provide product information by filling a form before making warranty repairs, including the date of purchase and installation, the serial number of the WIT Inverter, fault description and other information.
  • Page 129 If you have technical problems with our products, please contact Growatt for technical support. To provide you with the necessary assistance, please have the following information ready: 1. Model number of the WIT Inverter 2. Serial number of the WIT Inverter 3.
  • Page 130 Download Manual Shenzhen Growatt New Energy Co., Ltd. 4-13/F, Building A, Sino-German (Europe) Industrial Park, Hangcheng Blvd, Bao'an District, Shenzhen, China +86 755 2747 1942 service@ginverter.com en.growatt.com GR-UM-419-A-00 (PN: 044.0131800)

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Wit 29.9-50k-xhu seriesWit 29.9k-xhuWit 30k-xhuWit 36k-xhuWit 40k-xhuWit 50k-xhu

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