Setting the Active Power Limitation in case of PV System Control Failure

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You will need to set the active power limitation in case of PV system control failure if the active power limitation of the inverter is controlled by a communication product. By setting the active power limitation in case of PV system control failure, you ensure that the inverter will still feed the maximum permissible PV power into the utility grid, even if communication between inverter and communication product has failed. The default setting of the inverter is 100%.

The basic procedure for changing operating parameters is explained in another section ( > Changing Operating Parameters).

Requirements:

  • The parameter Operating mode Active power must be set to the value Act. power lim. via PV system ctrl.
  • The firmware version of the inverter must be at least 2.62.04.R.
  • The total installed PV power must be known.
  • The active power feed-in specified by the grid operator must be known.

Procedure:

  1. Ensure that the firmware version of the inverter is at least 2.62.04.R. If necessary, carry out a firmware update.
  2. Select the parameter Fallback act power lmt P in % of WMax for absent act power lmt and set the required percentage.
  3. Select the parameter Operating mode for absent plant control and set to Use fallback setting.
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