Engineering Guide CDA3000
1-15
1 Analysis of task
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Static speed accuracy
The static speed accuracy refers to the speed deviation in the steady
(static) state after completion of startup.
In operation with speed control a high-frequency ripple is superimposed
on the actual speed. The frequency of the ripple depends on the sampling
rate of the speed controller. The amplitude of the said ripple is dependent
on the encoder system used and on the mass inertia system (application
and motor).
(1) Lower limit
(2) Upper limit
(3) Variation range
Figure 1.13 Static speed accuracy
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(1)
(2)
(3)
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