Document Outline

• 1 Information on this Document
  • 1.1 Validity
  • 1.2 Target Group
  • 1.3 Additional Information
  • 1.4 Symbols
  • 1.5 Typographies
  • 1.6 Nomenclature
  • 1.7 Abbreviations
• 2 Safety
  • 2.1 Intended Use
  • 2.2 Safety Precautions
  • 2.3 Personal Protective Equipment
  • 2.4 Symbols on the Sunny Central Inverter
  • 2.5 Labels on the Sunny Central Inverter
    • 2.5.1 Inverter without integrated DC switch
    • 2.5.2 Inverter with integrated DC switch
• 3 Product Description
  • 3.1 Plant Overview
  • 3.2 Sunny Central Inverter
    • 3.2.1 Design of the Sunny Central Inverter
    • 3.2.2 Type Label
    • 3.2.3 Operating States
    • 3.2.4 Touch Display
    • 3.2.5 Key Switch
    • 3.2.6 Integrated AC Disconnect
    • 3.2.7 Integrated DC Switch
  • 3.3 Sunny Central Communication Controller
  • 3.4 Remote Shutdown
  • 3.5 External Fast Stop
  • 3.6 Insulation and Ground Fault Monitoring
    • 3.6.1 Operating Principles
    • 3.6.2 Ground Fault Monitoring in Grounded PV Arrays
      • 3.6.2.1 Ground Fault Detection Interruption (GFDI)
    • 3.6.3 Insulation Monitoring
      • 3.6.3.1 Insulation Monitoring Device
    • 3.6.4 Combined Insulation and Ground Fault Monitoring
      • 3.6.4.1 GFDI and Insulation Monitoring
      • 3.6.4.2 Advanced Remote GFDI and Insulation Monitoring Device
  • 3.7 Grid Management Services
    • 3.7.1 Requirements
    • 3.7.2 Active Power Limitation
    • 3.7.3 Reactive Power Setpoint
    • 3.7.4 Full and Limited Dynamic Grid Support (FRT)
    • 3.7.5 Decoupling Protection Ramp
    • 3.7.6 Grid Management Shutdown
    • 3.7.7 Q at Night
  • 3.8 Islanding Detection
  • 3.9 Schematic Diagram
• 4 Touch Display of the Inverter
  • 4.1 Touch Display Layout
  • 4.2 Explanation of Symbols
    • 4.2.1 Status Info Line
    • 4.2.2 Information Area
    • 4.2.3 Navigation Line
  • 4.3 Selecting the Language
  • 4.4 Changing the Date, Time, and Time Zone
  • 4.5 Selecting the Display Format
  • 4.6 Setting the Brightness
  • 4.7 Entering the Installer Password
• 5 Plant Network
  • 5.1 Plant Network Structure
  • 5.2 Setting the IP Address on the Laptop
  • 5.3 Configuring the IP Address of the Inverter for Static Networks
  • 5.4 Configuring the IP Address of the Inverter for Dynamic Networks
• 6 Communication with the SC-COM
  • 6.1 Displaying Instantaneous Values
  • 6.2 Changing Parameters
  • 6.3 Setting the Remote Shutdown
• 7 Active Power Limitation
  • 7.1 Power Frequency-Dependent Active Power Limitation
  • 7.2 Active Power Limitation Independent of the Frequency
    • 7.2.1 Selecting the Procedure with the Parameter P-WMod
    • 7.2.2 Off Procedure
    • 7.2.3 WCtlCom Procedure
    • 7.2.4 WCnst Procedure
    • 7.2.5 WCnstNom Procedure
    • 7.2.6 WCnstNomAnln Procedure
  • 7.3 Displaying the Status of the Active Power Limitation
  • 7.4 Displaying Error Messages and Warnings of Active Power Limitation
• 8 Reactive Power Control
  • 8.1 Selecting Reactive Power Control Procedure with the Parameter Q-VArMod
    • 8.1.1 Off Procedure
    • 8.1.2 VArCtlCom Procedure
    • 8.1.3 PFCtlCom Procedure
    • 8.1.4 VArCnst Procedure
    • 8.1.5 VArCnstNom Procedure
    • 8.1.6 VArCnstNomAnln Procedure
    • 8.1.7 PFCnst Procedure
    • 8.1.8 PFCnstAnln Procedure
    • 8.1.9 PFCtlW Procedure
    • 8.1.10 VArCtlVol Procedure
    • 8.1.11 VArCtlVolHystDb Procedure
  • 8.2 Displaying Error Messages and Warnings for the Reactive Power Setpoint
  • 8.3 Q at Night
    • 8.3.1 Selecting the Mode with the Parameter QoDQ-VarMod
      • 8.3.1.1 No Q at Night: Off Procedure
      • 8.3.1.2 Q at Night with Operation Command via Modbus Protocol: WCtlCom Procedure
      • 8.3.1.3 Q at Night with Absolute Value: VArCnst Procedure
      • 8.3.1.4 Q at Night as a Percentage of the Nominal Power: VArCnstNom Procedure
      • 8.3.1.5 Q at Night via Standard Signal: VArCnstNomAnIn Procedure
      • 8.3.1.6 Q at Night Depending on the Line Voltage: VArCtlVol Procedure
      • 8.3.1.7 Measures for Voltage Support through Parameterization of Reactive Power/ Voltage Characteristic Curve: VArCtlVolHystDb Procedure
• 9 Grid Monitoring
  • 9.1 How Grid Monitoring Works
  • 9.2 Monitoring the Line Voltage
  • 9.3 Monitoring the Power Frequency
  • 9.4 Measurement Accuracy
  • 9.5 Grid Connection after Correction of Error
  • 9.6 Setting the Medium Voltage
• 10 Setting the Insulation Monitoring of the PV Plant
  • 10.1 Setting the Insulation Monitoring of the PV Plant with Advanced Remote GFDI and an Insulation Monitoring Device
    • 10.1.1 Information on Insulating PV Modules Equipped with Advanced Remote GFDI and Insulation Monitoring Device
    • 10.1.2 Switching to Insulated Operation
    • 10.1.3 Switching to Grounded Operation
• 11 Troubleshooting
  • 11.1 Safety During Troubleshooting
  • 11.2 Reading Error Messages
    • 11.2.1 Reading Error Messages via Touch Display
    • 11.2.2 Reading Error Messages via the User Interface
  • 11.3 Acknowledging Error Messages
    • 11.3.1 Acknowledging the Error Messages via the Key Switch
    • 11.3.2 Acknowledging Errors via the User Interface
  • 11.4 Error Messages
    • 11.4.1 Behavior of the Inverter under Fault Conditions
    • 11.4.2 Error Numbers 01xx to 13xx - Disturbance on the Utility Grid
    • 11.4.3 Error Number 34xx to 40xx ‒ Disturbance on the PV Array
    • 11.4.4 Error Number 60xx to 90xx ‒ Disturbance on the inverter
• 12 Instantaneous Values
  • 12.1 Inverter Instantaneous Values
    • 12.1.1 Power Limitation
    • 12.1.2 Error Channels
    • 12.1.3 Measured Values
    • 12.1.4 Device-Internal Values
    • 12.1.5 Internal Counters
    • 12.1.6 Service-Relevant Display Values
  • 12.2 Sunny Central String-Monitor-US
    • 12.2.1 Instantaneous Values
    • 12.2.2 Device-Internal Values
    • 12.2.3 Status Values
• 13 Parameters
  • 13.1 Sunny Central Inverter
    • 13.1.1 Power Limitation
    • 13.1.2 Grid Monitoring/Grid Limits
    • 13.1.3 Grid Support
    • 13.1.4 Insulation Monitoring
    • 13.1.5 Device-Internal Values
• 14 Contact
• 15 Revision History