Abstract: A device for disconnecting an actuation of a power stage of an electric machine includes: a first input for detecting a safety function signal and a second input for detecting a reference potential of the safety function signal; and at least one switch-off path of the actuation, each of the at least one switch-off path including: an input coupler connected between the first input and the second input on an input side for transmitting the safety function signal from the first and second inputs; and at least one output for actuating a switch of a half bridge of the power stage, and at least one modulation logic unit for logically linking a modulation signal associated with a respective switch and the safety function signal transmitted by a respective input coupler and to output it at the output as a disconnectable modulation signal.

Abstract: A modular switch apparatus for controlling at least one electric drive includes a mounting rail bus system having a control line and two power supply lines, a power supply device, and a safety relay module that is configured to obtain a first, high level control signal from a DC supply voltage applied to the two power supply lines and to feed the first control signal to the control line via the first bus interface if the emergency stop command device has not been actuated. Furthermore, at least one safety motor starter module is provided, which includes a processing device with an input that can be electrically connected to the control line via a bus interface. The processing device is adapted to evaluate a first, high level control signal as transferred via the control line and to provide control signals for controlling the at least two switch devices.

Abstract: A modular switch apparatus for controlling at least one electric drive includes a mounting rail bus system having a control line and two power supply lines, a power supply device, and a safety relay module that is configured to obtain a first, high level control signal from a DC supply voltage applied to the two power supply lines and to feed the first control signal to the control line via the first bus interface if the emergency stop command device has not been actuated. Furthermore, at least one safety motor starter module is provided, which includes a processing device with an input that can be electrically connected to the control line via a bus interface. The processing device is adapted to evaluate a first, high level control signal as transferred via the control line and to provide control signals for controlling the at least two switch devices.

Abstract: The invention relates to a method and a device for controlling an electrical or electronic switching element that can be activated by an electrical signal, wherein a PWM signal can be produced by a PWM module for controlling the switching element and which can be modulated as a function of the supply voltage and/or of an ambient temperature on the electromechanical or electronic switch.

Abstract: A switching unit for controlling at least one switching element, includes a control unit adapted to control the at least one switching element; a connection for applying a supply voltage for power supply of the control unit; an energy storage connectable to the connection for applying a supply voltage and adapted, when the supply voltage drops or fails, to supply the control unit with power that is sufficient to control the at least one switching element such that the switching element executes a predetermined switching operation; wherein the switching unit includes means for monitoring the operability of the energy storage. Furthermore, a method for controlling at least one switching element using the switching unit.

Abstract: The invention relates to a method and a device for controlling an electrical or electronic switching element that can be activated by an electrical signal, wherein a PWM signal can be produced by a PWM module for controlling the switching element and which can be modulated as a function of the supply voltage and/or of an ambient temperature on the electromechanical or electronic switch.