Siemens Aktiengesellschaft

Rolf-Dieter Pavlik

Frank Volkmann

Ulrich Hahn

Jürgen Lange

Martin Kiesel

Raimund Kram

Gerhard Heinemann

Guido Seeger

Bernd Quaschner

Jürgen Büssert

Manfred Zäh

Thomas Heimann

Gernot Rossi

Richard Krüger

Josef Hammer

Hagen Terpitz

Jens Jähnicke

A drive device for an electric motor is provided. The drive device decides based on signals it receives from outside whether it is monitoring an actual value of the electric motor with respect to the adherence to an actual value condition (monitoring operation). During monitoring operation, the drive device causes the motor to be disconnected from a power supply if the actual value does not adhere to the actual value condition. Via a communication connection, the drive device provides a drive control unit with first information, which reveals whether the drive device is in the monitoring operating mode. The drive device provides the drive control unit with second information, which reveals what the actual value condition is. Based on the first information, the drive control unit examines whether the drive device is in the monitoring operating mode. If this is the case, the drive control unit, based on the second information, determines what the actual value condition is.

Drive device for at least one electric motor and drive control unit interacting with the drive device

A signal converter device has a programmable logic circuit, wherein a number of binary input signals are being transmitted from the outside of the signal converter unit. The programmable logic circuit is programmed by a programming in such a way, as to detect binary output signals from a number of logic functions. The output signals are output by the signal converter device to the outside. The logic functions are designed in such a manner, that the output signals are determined exclusively by logic associations of the input signals. The output signals are at least partially transmitted to drives. Programming is in such a way, that for at least two drives, output signals to be emitted to the drives are determined uniformly.

Signal conversion facility and method for creating programming for a signal conversion facility

In normal mode, a central unit of an electronic control device receives desired and actual values for determining desired current values which are transmitted to an electronic drive unit. The central unit of the electronic drive unit receives the desired current values for determining drive signals for circuit breakers. In monitoring mode, the central unit of the electronic control device checks whether an connected electric motor is in a safe state. If not, the control device transmits disconnection signals to a disconnection device and to the drive unit. The central unit of the electronic control device generates checking information for the drive unit. In the monitoring mode, the central unit of the drive unit checks whether a disconnection signal is transmitted to the central unit and whether the checking information is correct.

Electronic control device of an electrical drive system with redundant disconnection device

There is described a method for motion monitoring of a machine, comprising a sensor, wherein a sensor signal is transmitted from the sensor to a controller and/or to a drive device, a failsafe controller or drive device being employed as controller or drive device. The controller or drive device comprises three independent monitoring devices in which the sensor signal is formed from a first and a second redundant actual position value.

Motion monitoring

A data transmission system is described that connects a controller with drives in machine tools and production machines. The controller can be connected via an internal data bus with at least one internal drive, wherein the same data bus profiles are used for the internal data bus as for an external data bus. A user then sees the same data interface both for a central control topology and a drive-based control topology. This allows the user to readily interchange the two topologies and port existing applications to the various control topologies.

Data transmission system for connecting a controller with drives

In a method of generating and/or executing a diversified program flow from a program source code for or on at least two processing units of a machine tool, production machine or robot, a machine code is generated from a program source code by a compiler for at least one processing unit with a programmable processing module. The program source code is also used to generate by a converter or interpreter a description file which is run interpretatively in at least one further processing unit by at least one programmable processing module. Data of the processing units is saved in at least one common memory and checked for a match through respective data comparison.

Method of generating and/or executing a diversified program flow

The invention provides a computer system for realtime control of machines. The computer system continually switches between a realtime programs EP providing control of peripheral devices A, A, including control and/or regulation, and other programs within the realtime clock periods. The computer system has communications system KS and a a control system SS connected to the peripheral devices A, A, particularly motor driver devices, over the communications system KS. A realtime clock signal T is generated from an independent cyclic communications clock Tof the communications system KS, which has a communications processor KP that operates in realtime. When the control processor SP is remote from the communications processor KP, the realtime clock T may be regenerated an incoming bus clock signal B by a counter Z having upper and lower thresholds Kand K

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Erlangen, Germany

Rolf-Dieter Pavlik