Description: Variable variable that is not influenced by the regulation or control in question, which is supplied to the control circuit or the control chain from outside and which the task variable is intended to follow in a predetermined relationship; Name: target size
Description: variable quantity, which is not influenced by the control but is introduced into the control system from outside with the aim of making the final controlled variable follow it in a given relationship; Name: command variable
Description: Allocation of the devices according to deployment site and cause of the hazard. NOTE: The Group II operating media are further subdivided into explosion groups and temperature classes; Name: Explosion protection device group of the electric motor