Electric system e.g. production system, has controller generating static and dynamic threshold values as function of course of current measurement value, where threshold values are provided to protection unit for setting release parameter

摘要

The system has a consumer protected by a protection unit i.e. electronic protection switch. A controller is designed as a microcontroller, to which a measurement value of the current received by the consumer is supplied. The controller generates static and dynamic threshold values as a function of the course of the measurement value, where the threshold values are provided to the protection unit for setting a release parameter. The controller comprises of a history memory, at which the current measurement values of the consumer is stored, where the values are triggered by a timer. An independent claim is also included for a method for operating the electric system.