Interpolatory Compensation; General Information - Siemens SINUMERIK 840D sl Function Manual

5.4

Interpolatory compensation

5.4.1

General information

Compensation methods
The "interpolatory compensation" function uses the following two compensation methods:
● "Leadscrew error compensation" or "measuring system error compensation" (referred to
● Sag compensation or angularity error compensation, referred to as sag compensation
Many of the characteristics of these two compensation methods are identical and are
therefore described in the next Section "General notes".
Terminology
The following terms are used in the description of "Interpolatory compensation":
● Compensation value
● Basic axis
● Compensation axis
● Interpolation point
● Compensation table
● Compensation relation
Extended Functions
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
as LEC below).
below.
The difference between the axis position measured by the position actual-value encoder
and the required programmed axis position (= axis position of the ideal machine). The
compensation value is often also referred to as the correction value.
Axis whose setpoint position or actual position forms the basis of the calculation of a
compensation value.
Axis whose setpoint position or actual position is modified by a compensation value.
A position of the base axis and the corresponding compensation value of the
compensation axis.
Table containing interpolation points
Assignment of the base axis and the corresponding compensation axis and the reference
to the corresponding compensation table.
Compensations (K3)
5.4 Interpolatory compensation
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