| 摘要 |
The invention relates to monitoring actuators arranged in the load circuit of an output circuit for switching the load circuit. Actuators are arranged in series in the load circuit, each of the actuators is connected to a control and evaluation device by a separate channel for individual control, wherein an auxiliary contact is assigned to each actuator. The contacts are connected via a readback circuit to the device such that when all the actuators assigned to a readback circuit are deactivated, a standby signal is detected as a readback signal by the device, wherein the device is parameterized such that, for their activation, the control of actuators in the load circuit comprises the steps that only one actuator belonging to a readback circuit is always activated and the readback signal detected by the readback circuit assigned to this actuator is evaluated and the actuators in the load circuit remains deactivated. |
