Heidelberger Druckmaschinen Ag

Kai Albrecht

Helmut Meyer

Holger Faulhammer

Georg Roessler

Ulrich Grimm

Andreas Wagner

Reinhard Janzer

Bernhard Wagensommer

Jurgen Seeberger

Detlef Strunk

Jochen Bechtler

Eckehard Sommer

Michael Krüger

Michael Pritschow

Thomas Husterer

Georg R&ouml;ssler

Jürgen Maaß

A module for a machine for processing sheet printing materials, has interfaces for control communication, a memory unit which can be read and written and which contains the properties of the module, and also a communications device which is used for communication with further modules and/or a higher-order control system of the machine. The communications device is operatively connected to the memory unit.

Modular sheet-fed rotary printing press

A device for synchronizing processes which run on a plurality of units including a central unit linked with other units via a field bus, includes a device provided in the central unit for producing a system clock, the field bus having a vacant line for distributing the system clock to the other units, and respective multiplication devices located at the other units for multiplying the system clock; and a method of operating the device for synchronizing processes.

Method and device for synchronizing processes which are performed on a plurality of units

The present invention relates to a device and a method for synchronizing processes which are executed on a plurality of units (), in particular, in paper-processing machines, the units () being connected to a central control unit () via a data bus (). The present invention is characterized in that the central control unit () is designed for distributing movement commands via a data bus () to a plurality of units (), the movement commands containing the instant at which these commands are executed, and that provision is made for the units () which keep available the absolute time to synchronously execute these commands at the instant communicated via the commands.

Device and method for synchronizing a plurality of electric drive units in a paper processing machine

A device for monitoring safety-relevant processes in actuating/drive elements in machines having at least one operation control for safety-relevant and other than safety-relevant processes, at least one safety monitoring control, at least one safety input/output device and a redundantly constructed input/output system for safety-relevant processes, includes at least one field bus system connecting the operation control, the at least one safety input/output device and the at least one safety monitoring control to one another, at least one of the safety input/output device and the safety monitoring control being disposed in a distributed manner on an actuating/drive element for, respectively, initiating and performing a safety-relevant process; and a method of operating the device.

Device for monitoring safety-relevant processes in machines

A method for suppressing current peaks occurring during commutation in phase windings of a brushless direct-current motor, including supplying the phase windings via an indirect direct-current converter with rectangular current having an actual value measured exclusively in a direct-current link of the converter (single-current measurement), and delaying current buildup in the phase winding by a time period t.sub.v with respect to a current decay.

Method for suppressing current peaks during commutation of a brushless

A method for regulating a motor current in phase windings of a brushless d.c. motor, wherein current is applied to the phase windings individually via an electronically controllable, d.c.-voltage intermediate-circuit converter with switchable semiconductor valves and respective freewheeling diodes connected in parallel with each thereof in individual bridge arms, and an actual value of the motor current is measured exclusively in the d.c.-voltage intermediate circuit, includes switching off, in a motor mode of operation, only one switchable semiconductor valve of the energized bridge arms for a period of time dependent upon the rotational speed of the motor when a reference value of the motor current is reached.

Method for regulating a motor current of a brushless D.C. motor

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Heidelberg, Germany

Kai Albrecht