Document Outline

• 1 Information on this Manual
• 2 Safety
  • 2.1  Intended Use
  • 2.2  Safety Instructions
  • 2.3  Qualification of Skilled Worker
• 3 Product Description
  • 3.1  Sunny Central
    • 3.1.1  Design and Function of the Sunny Central
    • 3.1.2  Touch Display
    • 3.1.3  Indicator Lights
    • 3.1.4  Quick stop
    • 3.1.5  Key switch
  • 3.2  Sunny Central Communication Controller
  • 3.3  Sunny Central String-Monitor Controller
  • 3.4  Remote shutdown
  • 3.5  Insulation Monitoring
    • 3.5.1  How Insulation Monitoring Works
    • 3.5.2  GFDI
    • 3.5.3  Remote GFDI
    • 3.5.4  Soft Grounding
    • 3.5.5  Insulation Monitoring Device
    • 3.5.6  GFDI and Insulation Monitoring
    • 3.5.7  Remote GFDI and Insulation Monitoring
  • 3.6  Grid Management
    • 3.6.1  Requirements
    • 3.6.2  Active Power Limitation
    • 3.6.3  Reactive Power Setpoint
    • 3.6.4  Dynamic Grid Support (FRT)
    • 3.6.5  Decoupling Protection Ramp
    • 3.6.6  Grid Management Shutdown
  • 3.7  Active Islanding Detection
  • 3.8  Serial Number and Device Type
  • 3.9  Symbols on the Sunny Central
• 4 Setting Network
• 5 SC-COM Communication
  • 5.1  Displaying Spot Values
  • 5.2  Changing Parameters
  • 5.3  Setting Up the Sunny Central String-Monitor Controller
    • 5.3.1  Setting the Parameters for String Current Monitoring in the PV Plant
  • 5.4  Optional Settings for PV Plant Monitoring
    • 5.4.1  Changing the Communication Period
    • 5.4.2  Changing the Monitoring Period
    • 5.4.3  Assigning PV Strings to Various Measuring Channels
    • 5.4.4  Assigning PV strings to Different Groups
    • 5.4.5  Setting the Tripping Time
    • 5.4.6  Setting the Tolerance
  • 5.5  Reading the Measured Values
    • 5.5.1  Reading the Measured Values of the Groups
    • 5.5.2  Reading the Measured Values for the Individual Measuring Channels
  • 5.6  Setting the Remote Shutdown
  • 5.7  Disconnecting "Fully Hermetic Protection" for the Transformer
• 6 Setpoint for Active Power and Reactive Power
  • 6.1  Active Power Limitation
    • 6.1.1  Frequency-Independent Active Power Limitation Procedure
    • 6.1.2  Setting the Active Power Limitation Procedure and Associated Parameters
    • 6.1.3  "Off" Procedure
    • 6.1.4  "WCtlCom" Procedure
    • 6.1.5  "WCnst" Procedure
    • 6.1.6  "WCnstNom" Procedure
    • 6.1.7  "WCnstNomAnln" Procedure
    • 6.1.8  Displaying Error Messages and Warnings for Active Power Limitation
    • 6.1.9  Active Power Limitation Depending on Power Frequency
    • 6.1.10  Active Power Limitation Procedure Depending on Power Frequency and Associated Parameter Setting
    • 6.1.11  Displaying the Status of the Active Power Limitation
  • 6.2  Reactive Power Regulation
    • 6.2.1  Procedure for Regulating Reactive Power
    • 6.2.2  "Off" Procedure
    • 6.2.3  "VArCtlCom" Procedure
    • 6.2.4  "PFCtlCom" Procedure
    • 6.2.5  "VArCnst" Procedure
    • 6.2.6  "VArCnstNom" Procedure
    • 6.2.7  "VArCnstNomAnIn" Procedure
    • 6.2.8  "PFCnst" Procedure
    • 6.2.9  "PFCnstAnIn" Procedure
    • 6.2.10  "PFCtlW" Procedure
    • 6.2.11  "VArCtlVol" Procedure
    • 6.2.12  "VArCtlVolHystTb" Procedure
    • 6.2.13  Displaying Error Messages and Warnings for the Reactive Power Setpoint
• 7 Grid Monitoring
  • 7.1  How Grid Monitoring Works
  • 7.2  Grid Monitoring for Grid Voltage
  • 7.3  Grid Monitoring for Power Frequency
  • 7.4  Grid Connection after Correction of Error
  • 7.5  Setting the Medium Voltage
• 8 Touch Display of the Sunny Central
  • 8.1  Explanation of Symbols
  • 8.2  Language Selection
  • 8.3  Changing the Date, Time, and Time Zone
  • 8.4  Choosing the Display Format
  • 8.5  Adjusting the Contrast
  • 8.6  Entering the Installer Password
• 9 Insulation Monitoring
  • 9.1  Insulation Monitoring Device
    • 9.1.1  Overview of Display and Control Elements
    • 9.1.2  Switching between the Main Menu and Standard Operation
    • 9.1.3  Selecting used PV Modules
  • 9.2  Insulating PV Modules Equipped with GFDI and Insulation Monitoring Device
  • 9.3  Insulating PV Modules Equipped with Remote GFDI and Insulation Monitoring Device
• 10 Troubleshooting
  • 10.1  Viewing Errors
    • 10.1.1  Viewing Errors on the Touch Display
    • 10.1.2  Viewing Errors on the SC-COM Interface
  • 10.2  Confirming Errors
    • 10.2.1  Confirming Errors via the Key Switch
    • 10.2.2  Confirming Errors on the SC-COM Interface
  • 10.3  Displaying the Error Delay Time
  • 10.4  Error 01xx … 13xx ‒ Grid Errors
  • 10.5  Error 34xx … 40xx ‒ PV Array Errors
  • 10.6  Error 60xx … 90xx ‒ Sunny Central Errors
• 11 Spot Values
  • 11.1  Spot Values of the Inverter
    • 11.1.1  Power limitation
    • 11.1.2  Error channels
    • 11.1.3  Measured values
    • 11.1.4  Device-internal values
    • 11.1.5  Internal counters
    • 11.1.6  Service-related display values
  • 11.2  Sunny Central String-Monitor Controller
    • 11.2.1  Spot Values
    • 11.2.2  Device-internal values
    • 11.2.3  Status values
  • 11.3  Sunny String-Monitor
    • 11.3.1  Spot Values
    • 11.3.2  Device-internal values
    • 11.3.3  Status value
• 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  Device-Internal Values
  • 12.2  Sunny Central String-Monitor Controller
  • 12.3  Sunny String-Monitor
• 13 Contact