Siemens SINAMICS G120 - Basic Positioner and Position Control

Basic positioner and position control
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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 pro󹪝le for the time-optimized traversing of
the axis to the target position.
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Figure 3-1 Basic positioner and position control
The basic positioner has the following operating modes:
• Direct setpoint input (MDI): The external control speci󹪝es the position setpoint for
the axis.
• Traversing block selection: Position setpoints are saved in di󹪜erent traversing blocks
in the converter. The external control selects a traversing
block.
• Referencing: Referencing establishes the reference of the position
measurement in the converter to the machine.
• Jogging: This function is used to incrementally traverse the axis
(Set up).
• Travel to 󹪝xed stop: The converter positions the axis with a de󹪝ned torque
against a mechanical 󹪝xed stop.
Basic positioner
Function Manual, 09/2020, FW V4.7 SP13, A5E34257659B AG 13