Acceleration And Deceleration Curves; Linear Curves - Sigma 2-16KC Operating Manual

Refrigerated centrifuge
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2-16KC
Appendix

11.4 Acceleration and Deceleration Curves

11.3.1 Linear Curves

98 7 6 5 4
1000
900
800
700
600
500
400
300
200
100
0
0
Fig. 11.3: Diagram of linear curves
60
The slope of the fixed acceleration curves defines the time that is
required to accelerate the rotor by 1,000 rpm.
Linear as well as quadratic curves are numbered in the direction of
increasing acceleration (from right to left).
The deceleration curves are inverted images of the acceleration
curves and are assigned the same numbers. An exception is curve 0.
It decelerates brakeless.
In general, the runtime, until the set speed is reached, depends on
the moment of inertia of the rotor.
Linear slope (curves 0 - 9)
Curve 9 is a special case compared to the other curves. The
centrifuge accelerates with maximum power. The runtime, until the
set speed is reached, depends solely on the moment of inertia of the
rotor.
Linear Curves
3
2
50
100
Time [sec]
1
150
200
Version 03/2010, Rev. 1.7 of 27/01/2012
Translation of the original operating manual
0
curve 0
curve 1
curve 2
curve 3
curve 4
curve 5
curve 6
curve 7
curve 8
curve 9
250

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