GU/f>24U/f>24U/f>24en05000208.vsdIEC05000208 V1 EN-USFigure 61: Alternative connections of an Overexcitation protectionOEXPVPH(Volt/Hertz)8.4.3 Setting guidelines IP15039-1 v18.4.3.1 Recommendations for input and output signals M6496-75 v4Recommendations for Input signals M6496-79 v5Please see the default factory configuration.BLOCK: The input will block the operation of the Overexcitation protectionOEXPVPH, for example, the block input can be used to block the operation for alimited time during special service conditions.RESET: OEXPVPH has a thermal memory, which can take a long time to reset.Activation of the RESET input will reset the function instantaneously.Recommendations for Output signals M6496-84 v7Please see the default factory configuration for examples of configuration.ERROR: The output indicates a measuring error. The reason, for example, can beconfiguration problems where analogue signals are missing.START: The START output indicates that the level V/Hz>> has been reached. Itcan be used to initiate time measurement.TRIP: The TRIP output is activated after the operate time for the U/f level hasexpired. TRIP signal is used to trip the circuit breaker(s).Section 8 1MRK 504 169-UEN AVoltage protection158 Transformer protection RET650 2.2 IECApplication manual