Grid

The Grid structure contains variables to output information on the electrical supply system. The measured outer conductor voltages as well as additional information on the grid status and the status of the individual line phases are displayed.

INFORMATION

The information is only output if the connected device provides this information. Using MDE90A, for example, only the grid status is sent from the module bus master device because the device is not physically connected to the external supply system.

Variable name

Description

rActualVoltageL1L2

Data type – REAL

Current phase-to-phase voltage (RMS) between phases L1 and L2 [V]

rActualVoltageL1L3

Data type – REAL

Current phase-to-phase voltage (RMS) between phases L1 and L3 [V]

rActualVoltageL2L3

Data type – REAL

Current phase-to-phase voltage (RMS) between phases L2 and L3 [V]

rEstimatedGridCurrent

Data type – REAL

Calculated grid phase current per phase (AC RMS [A])

xMainsConnected

Data type – BOOL

  • TRUE – The measured voltage is within the permissible range (supply system is connected).
  • FALSE – The measured voltage is outside the permissible range (supply system is not connected).

xPhase1Connected

Data type – BOOL

  • TRUE – Phase voltage L1 has expected value
  • FALSE – Phase voltage L1 failed

xPhase2Connected

Data type – BOOL

  • TRUE – Phase voltage L2 has expected value
  • FALSE – Phase voltage L2 failed

xPhase3Connected

Data type – BOOL

  • TRUE – Phase voltage L3 has expected value
  • FALSE – Phase voltage L3 failed