Method for Controlling a Drive
AssigneeSiemens Aktiengesellschaft
InventorsWerner Czerny, Reinhold GOETZ, Andreas HEILMANN, Jan KABUS, Stefan Ingo MEIER, Martin MEINARDUS, Christian MERKEL, Juergen MIELKE, Luliu VLAIC
Life of this patent
Estimating the term…
Abstract
A method for controlling a drive having at least one converter, at least one motor and an assigned drive control, wherein a failsafe CPU is operated separately from the drive control and only processes safety-relevant information, where a number of safety functions are implemented by the failsafe CPU such that the safety-relevant functions of the drive are implemented in a simple and reliable manner.
Claims5
A method for controlling a drive having at least one converter, at least one motor and an associated drive control, comprising:
- operating a failsafe CPU separately from the associated drive control;
- and
- processing only safety-relevant information by the failsafe CPU;
- wherein a plurality of safety functions are implemented by the failsafe CPU.
A system comprising:
- at least one converter;
- at least one motor;
- an assigned drive control;
- and
- a failsafe CPU separated from the drive control, said failsafe CPU only processing safety-relevant information;
- wherein the failsafe CPU includes at least one safety program which causes operation the failsafe CPU separately from the associated drive control and causes the processing of only the safety-relevant information at the failsafe CPU.
Dependencies are inferred from the claim text.