Basic Positioner And Position Control - Siemens SINAMICS G120D Original Instructions Manual

8.6

Basic positioner and position control

8.6.1 Basic positioner and position control
Overview
Position control means controlling the position of an axis. An "axis" is a machine or system
component that comprises the converter with active position control and the driven
mechanical system.
The basic positioner (EPOS) calculates the traversing profile for the time-optimized
traversing of the axis to the target position.
Figure 8-18
The basic positioner has the following operating modes:
• Direct setpoint input (MDI):
• Traversing block selection:
• Referencing:
• Jogging:
• Travel to fixed stop:
Converter with control units CU250D-2
Operating Instructions, 04/2014, FW V4.7, A5E34261542B AA
Basic positioner and position control
The external control specifies the position setpoint for the
axis.
Position setpoints are saved in different traversing blocks
in the converter. The external control selects a traversing
block.
Referencing establishes the reference of the position
measurement in the converter to the machine.
This function is used to incrementally traverse the axis (Set
up).
The converter positions the axis with a defined torque
against a mechanical fixed stop.
8.6 Basic positioner and position control
Setting functions
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