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MPH-02, MPB-02, MPD-02
Position-Dependent
Temperature Factor
Temperature Factor by Means of
Series of Measurements
x
k3
x
k2
x
1
k
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
. 0
005
mm
*
16025
mm
=
b
3
*
16025
Fig. 8-60:
Auxiliary equation 2
Fig. 8-61:
Reference position
In order to be able to determine the reference position as exactly as
possible, several series of measurements should be recorded at different
temperatures for position-dependent temperature correction.
The resulting reference position is determined by the arithmetical mean of
the calculated reference positions.
The value for P-0-0406, Axis correction temperature factor pos.-
dependent is determined
• by means of the data of the mechanical transmission elements
- or -
• by means of series of measurements for actual position value error at
different temperatures at an identical axis position.
To determine the position-dependent temperature factor it is necessary to
record a series of measurements of correction values at different
temperatures, at least at one position that clearly differs from the
reference position.
Depending on the temperature difference, a straight line can be
approximated through the measuring points.
correction value x
k
P
(∆T
,x
2
2
k2
∆T
∆T
1
2
P
(∆T
,x
)
1
1
k1
x
:
correction value (measured position value – actual position value
kn
(S-0-0051/S-0-0053))
∆T
:
temperature difference
n
(measured temperature – reference temperature (P-0-0402))
Fig. 8-62:
Approximated straight correction line on the basis of measured
correction values at different ∆T with identical actual position
2
2
−
185
0 .
mm
*
. 3
025
mm
=
2
2
−
mm
(
185
0 .
mm
)
−
−
(
. 0
034620
mm
)
=
=
x
0
58
.
. 0
0005884
P
(∆T
,x
)
3
3
k3
)
∆T
3
8-67
Drive Functions
3
−
479
5 .
mm
=
−
. 0
034620
mm
2
13850
mm
83
mm
temperature
difference (∆T)
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