Configure the 'Impedance Measurement' in the 'Amplifiers and Speakerlines' > 'Speakerlines' tab (see 6.7.5.)

The values from the 'Supervision' >' Nominal Impedance' > ' Value' + 'Tolerance' fields are evaluated in the measurement algorithm.

  • Nominal Impedance is the estimated impedance value of the line in ohms.
  • The tolerance is the maximal deviation of the nominal impedance in %.
Impedance measurement
  1. Activate the 'Enable' flag for each speaker line you want to monitor.
  1. Under 'Supervision' > 'Nominal Impedance', set the 'Value' and 'Tolerance' to a value of between 5…20.
  • 'Value' = 17 and 'Tolerance' = 10 provide a good starting point.
  • If optimization is required, increase the values.
  1. Set the 'Type' to 'Impedance'.
  • The following errors can be detected:
  • Faulty wiring
  • Amplifier fault