Application Examples ASDA Series Application Note
3-36 March, 2015
Looking for the middle point of bobbin:
PR#1: Incremental command 2850000PUU
Figure 3.2.22 Looking for the middle point of bobbin
3.2.3.6 The Design of E-cam Curve
In this application, to build the E-cam curve is quite easy, only by one linear line will do. It is not
suitable to plan acceleration/deceleration on two endpoints in this application. Otherwise, it might
overlap at the two endpoints because of the deceleration. See Figure 3.2.7 for the result and
Figure 3.2.23 for the causes. It proves that during the motor operation, either in forward or
backward direction, no additional acceleration and deceleration is applied in the application.
Thus, in mechanical design, low inertia and rigid mechanism should be the first priority. If the
gear box is directly applied on camshaft, the effect will be better than belt.
Figure 3.2.23 Tape overlap caused by acceleration/deceleration curve
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