Siemens SINUMERIK 840D sl Function Manual page 253

Compensation equation
The compensation value ∆K
and temperature T according to the following equation:
ΔK
x
The meaning is as follows:
ΔK
x
K :
0
P :
x
P :
0
tanβ:
Figure 5-1
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
= K (T) + tanβ (T) * (P
0
: Temperature compensation value of axis at position P
Position-independent temperature compensation value of axis
Actual position of axis
Reference position of axis
Coefficient for the position-dependent temperature compensation (corresponds to
the gradient of the approximated error line)
Approximated error line for temperature compensation
is calculated on the basis of current actual position P
x
- P )
x 0
K3: Compensations
5.2 Temperature compensation
of this axis
x
x
253