Control method and control device for the operation of coupled drive axes with superposed movement components
AssigneeSiemens Aktiengesellschaft
InventorWerner Agne
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Abstract
The invention relates to a control method and a control device for the operation of rotationally or linearly driven axes with a position control. This involves determining the difference between the setpoint position value (LS) and actual position value (WI) caused by an additional movement component during the time period of the occurrence of at least one superposed movement by subtraction of one value from the other. Furthermore, it is possible to eliminate movement components which are known, periodic and can be mathematically determined as desired from all the required control data paths during the time period of the superposed movement.
Claims11
A control method for the operation of a machine having driven components and a position control, comprising the steps of:
- detecting whether at least one superposed movement component is present;
- providing at least one setpoint position value and at least one actual position value of a component to be controlled;
- only during the presence of the superimposed movement, correcting the actual position value by eliminating an additional movement component from the actual position value;
- determining the difference between the setpoint position value and actual position value.
A device for controlling the operation of a machine having driven components, comprising:
- a position controller receiving a setpoint position value and a second position value wherein the position controller comprises a subtractor subtracting said second position value from said setpoint position value;
- and
- a switch receiving an actual position value and a corrected position value and providing said actual position value or said corrected position value as the second position value for said position controller, wherein said corrected position value is the actual position value corrected by eliminating an additional movement value which is included in the actual position value during an occurrence of at least one superposed movement;
- wherein the switch is controlled to output during the occurrence of the at least one superimposed movement the corrected position value and otherwise the actual position value.
Dependencies are inferred from the claim text.