Document Outline

• 1 Information on this Document
• 2 Safety
  • 2.1 Intended Use
  • 2.2 Safety Precautions
  • 2.3 Skills of Qualified Persons
  • 2.4 Personal Protective Equipment
• 3 Product Description
  • 3.1 PV System Overview
  • 3.2 Sunny Central
    • 3.2.1 Design of the Sunny Central
    • 3.2.2 Type Label
    • 3.2.3 Operating Modes
    • 3.2.4 Touch Display
    • 3.2.5 Key Switch
  • 3.3 Sunny Central Communication Controller
  • 3.4 Sunny Central String-Monitor Controller
  • 3.5 Remote Shutdown
  • 3.6 External Fast Stop
  • 3.7 Ground-Fault Monitoring and Insulation Monitoring
    • 3.7.1 Mode of Operation
    • 3.7.2 Ground-Fault Monitoring in Grounded PV Arrays
      • 3.7.2.1 Ground Fault Detection and Interruption (GFDI)
      • 3.7.2.2 Remote GFDI
      • 3.7.2.3 Soft Grounding
    • 3.7.3 Insulation Monitoring
      • 3.7.3.1 Insulation Monitoring Device
    • 3.7.4 Combined Insulation and Ground-Fault Monitoring
      • 3.7.4.1 GFDI and Insulation Monitoring Device
      • 3.7.4.2 Remote GFDI and Insulation Monitoring Device
      • 3.7.4.3 Remote Soft Grounding and Insulation Monitoring Device
  • 3.8 Grid Management Services
    • 3.8.1 Requirements
    • 3.8.2 Active Power Limitation
    • 3.8.3 Reactive Power Setpoint
    • 3.8.4 Behavior in the Absence of Active and Reactive Power Setpoints
    • 3.8.5 Full and Limited Dynamic Grid Support (FRT)
    • 3.8.6 Decoupling Protection Ramp
    • 3.8.7 Grid Management Shutdown
    • 3.8.8 Q at Night
  • 3.9 Islanding Detection
    • 3.9.1 Active Islanding Detection
    • 3.9.2 Passive Islanding Detection
  • 3.10 Schematic Diagram
• 4 Touch Display
  • 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 Network Settings
• 6 Communication with the Inverter
  • 6.1 Displaying Instantaneous Values
  • 6.2 Changing Parameters
  • 6.3 Setting the String-Current Monitoring on the Sunny Central String-Monitor Controller
  • 6.4 Optional Settings of the Sunny Central String-Monitor Controller
    • 6.4.1 Changing the Communication Period
    • 6.4.2 Changing the Monitoring Period
    • 6.4.3 Assigning PV Strings to Different Measuring Channels
    • 6.4.4 Assigning PV Strings to Different Groups
    • 6.4.5 Setting the Tripping Time
    • 6.4.6 Setting the Tolerance
  • 6.5 Configuring the Remote Shutdown
  • 6.6 Deactivating the "Fully Hermetic" Transformer Protection
• 7 Grid Monitoring
  • 7.1 How Grid Monitoring Works
  • 7.2 Setting Line Voltage Monitoring
  • 7.3 Setting Power Frequency Monitoring
  • 7.4 Grid Connection after Elimination of Error
  • 7.5 Setting the Active Power Ramp-Up
  • 7.6 Setting the Medium Voltage
  • 7.7 Activating the Manual Resume Mode
• 8 Power Control
  • 8.1 Active Power Limitation
    • 8.1.1 Frequency-Dependent Active Power Limitation
      • 8.1.1.1 Principle of Frequency-Dependent Active Power Limitation
      • 8.1.1.2 Setting the Mode of Frequency-Dependent Active Power Limitation and Associated Parameters
    • 8.1.2 Frequency-Independent Active Power Limitation
      • 8.1.2.1 Selecting the Mode with the Parameter P-WMod
      • 8.1.2.2 No Active Power Limitation: Off Mode
      • 8.1.2.3 Active Power Limitation with Setpoint Command via Modbus Protocol: WCtlCom Mode
      • 8.1.2.4 Active Power Limitation with Absolute Value: WCnst Mode
      • 8.1.2.5 Active Power Limitation as a Percentage of Nominal Power: VArCnstNom Mode
      • 8.1.2.6 Active Power Limitation via Standard Signal: WCnstNomAnIn Mode
    • 8.1.3 Displaying the Status of Active Power Limitation
    • 8.1.4 Displaying Error Messages and Warnings for Active Power Limitation
  • 8.2 Reactive Power Control
    • 8.2.1 Mode of Reactive Power Control
      • 8.2.1.1 Selecting the Mode with the Parameter Q-VArMod
      • 8.2.1.2 No Reactive Power Control: Off Mode
      • 8.2.1.3 Reactive Power Control with Setpoint Command via Modbus Protocol: VArCtlCom Mode
      • 8.2.1.4 Reactive Power Control with Setpoint Command via Modbus Protocol: PFCtlCom Mode
      • 8.2.1.5 Reactive Power Control with Absolute Value: VArCnst Mode
      • 8.2.1.6 Reactive Power Control as a Percentage of the Nominal Power: VArCnstNom Mode
      • 8.2.1.7 Reactive Power Setpoint via Standard Signal: VArCnstNomAnIn Mode
      • 8.2.1.8 Reactive Power Setpoint via Displacement Power Factor cos φ: PFCnst Mode
      • 8.2.1.9 Displacement Power Factor cos φ via Standard Signal: PFCnstAnIn Mode
      • 8.2.1.10 Displacement Power Factor cos φ as a Function of Feed-In Power: PFCtlW Mode
      • 8.2.1.11 Reactive Power as a Function of Line Voltage: VArCtlVol Mode
      • 8.2.1.12 Measures for Voltage Support through Parameterization of Reactive Power/ Voltage Characteristic Curve: VArCtlVolHystDb Mode
      • 8.2.1.13 Measures for Voltage Support through Parameterization of Reactive Power/ Voltage Characteristic Curve: VArCtlVolHystDbA Mode
    • 8.2.2 Displaying Error Messages and Warnings for the Reactive Power Setpoint
  • 8.3 Q at Night
    • 8.3.1 Selecting Parameter QoDQ-VarMod
    • 8.3.2 No Q at Night: Off Mode
    • 8.3.3 Q at Night with Setpoint Command via Modbus Protocol: VArCtlCom Mode
    • 8.3.4 Q at Night with Absolute Value: VArCnst Mode
    • 8.3.5 Q at Night as a Percentage of the Nominal Power: VArCnstNom Mode
    • 8.3.6 Q at Night via Standard Signal: VArCnstNomAnIn Mode
    • 8.3.7 Q at Night as a Function of Line Voltage: VArCtlVol Mode
    • 8.3.8 Measures for Voltage Support through Parameterization of Reactive Power/Voltage Characteristic Curve: VArCtlVolHystDb Mode
    • 8.3.9 Measures for Voltage Support through Parameterization of Reactive Power/Voltage Characteristic Curve: VArCtlVolHystDbA Mode
• 9 Setting the Insulation Monitoring of the PV System
  • 9.1 Setting the PV System to Insulation Monitoring with GFDI and an Insulation Monitoring Device
    • 9.1.1 Safety during Insulation Monitoring of the PV System with GFDI and an Insulation Monitoring Device
    • 9.1.2 Switching to Insulated Operation
    • 9.1.3 Switching to Grounded Operation
  • 9.2 Setting the PV System to Insulation Monitoring with Remote GFDI and an Insulation Monitoring Device
    • 9.2.1 Information on Insulation Monitoring of the PV System with Remote GFDI and an Insulation Monitoring Device
    • 9.2.2 Switching to Insulated Operation
    • 9.2.3 Switching to Grounded Operation
  • 9.3 Setting the PV System to Insulation Monitoring with Remote Soft Grounding and an Insulation Monitoring Device
    • 9.3.1 Information on Insulating PV Modules with Remote Soft Grounding and an Insulation Monitoring Device
    • 9.3.2 Switching to Insulated Operation
    • 9.3.3 Switching to Grounded Operation
• 10 Troubleshooting
  • 10.1 Safety During Troubleshooting
  • 10.2 Reading Off Disturbance Messages
    • 10.2.1 Reading Off Disturbance Messages via Touch Display
    • 10.2.2 Reading Off Disturbance Messages via User Interface
  • 10.3 Acknowledging Disturbance Messages
    • 10.3.1 Acknowledging Disturbance Messages via the Key Switch
    • 10.3.2 Acknowledging Error Messages via the User Interface
  • 10.4 Error Messages
    • 10.4.1 Behavior of Sunny Central Inverters under Fault Conditions
    • 10.4.2 Explanation of the Error Tables
    • 10.4.3 Error Numbers 01xx to 13xx - Disturbance on the Utility Grid
    • 10.4.4 Error Number 34xx to 40xx - Disturbance on PV Array
    • 10.4.5 Error Numbers 60xx to 90xx - Disturbance on the Sunny Central
• 11 Instantaneous Values
  • 11.1 Sunny Central
    • 11.1.1 Power Limitation
    • 11.1.2 Error Channels
    • 11.1.3 Measured Values
    • 11.1.4 Internal Device Values
    • 11.1.5 Internal Meters
    • 11.1.6 Service-Relevant Display Values
  • 11.2 Sunny Central String-Monitor Controller
    • 11.2.1 Instantaneous Values
    • 11.2.2 Internal Device Values
    • 11.2.3 Status Values
  • 11.3 Sunny String-Monitor
    • 11.3.1 Instantaneous Values
    • 11.3.2 Internal Device Values
    • 11.3.3 Status Values
• 12 Parameters
  • 12.1 Sunny Central
    • 12.1.1 Power Limitation
    • 12.1.2 Grid Monitoring/Grid Limits
    • 12.1.3 Grid Support
    • 12.1.4 Insulation Monitoring
    • 12.1.5 Internal Device Values
  • 12.2 Sunny Central String-Monitor Controller
  • 12.3 Sunny String-Monitor
• 13 Contact