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06.93 12 Functional Descriptions
12.16.3 Installation
12.16.3.2 Installation with adaptation characteristic
If the compensation is acceleration dependant, a characteristic must be determined in a
second stage.
The required compensation amplitudes for differend radii and velocities are determined, the
effect of the compensating amplitudes checked in a circularity test and the optimum
compensation amplitudes logged.
The following characteristic is used for the adaptation:
Figure 1
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Max. amplitude MD 1232*
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Minimum amplitude MD 1240*
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Acceleration
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MD 1244*
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MD 1248*
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MD 1252*
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'3
A distinction is made between four ranges in the characteristics:
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n =
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for a < a
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for a
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for a
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< a < a
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for a
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a – a
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– a
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1 –
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1
The characteristics in Figure 1 are used for the following examples. It is defined by the values
”Maximum compensating amplitude”, ”Minimum compensating amplitude” and the three
acceleration values a
3
, a
2
and a
1
. Considerably more measured values should be determined
as a control, most importantly there should be a sufficient number of points for high velocities
with small radii. The characteristic values are most easily derived from a graphic
representation.
© Siemens AG 1992 All Rights Reserved 6FC5197- AA50 12–123
SINUMERIK 840C (IA)
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