Circuit arrangement has control unit that detects switching state of relay, which is arranged such that relay is actuated several times by control device upon detection of break contact when relay is closed

摘要

The circuit arrangement comprises read-back contact (4) that is located on output line (3) of relay (2) actuated by control unit (1). The switching state of the relay is detected by control unit. The control unit is arranged such that the relay is actuated several times by the control device upon detection of a break contact when the relay is closed. An independent claim is included for a method for operating circuit arrangement.