Phoenix Contact Gmbh + Co. Kg

Stephan Hansmeier

Bernd Schulz

Lutz Heuer

Dirk Plewka

Elmar Schaper

Andre Korrek

Daniel Hawel

Matthias Ragaller

Alexander GÜNTER

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.

Modular switch apparatus for controlling at least one electric drive

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.

Method and device for controlling an electrical or electronic switching element

A device () for the detection of current asymmetries in three-phase circuits (L, L, L) is provided. This device () has a first current measuring mechanism (S) for the measurement of first phase (L) and a second current measuring mechanism (S) for the measurement of a second phase (L). Furthermore, the device has a computing unit (ALU) which determines a current symmetry value (N; N) of the third phase (L) relative to the first phase (L) or second phase (L) from the measured first phase and from the measured second phase. Moreover, an associated method is also provided.

Method and device for the detection of current asymmetries in three-phase circuits

Growing community of inventors

Bad Salzuflen, Germany

Stephan Hansmeier