Delta ASDA-A3 Series, Руководство пользователя

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Motion Control ASDA-A3
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7
7.3 E-Cam
The E-Cam system uses the mathematical formula to plan the relative following motion path
based on the master-slave operation, which can replace the actual mechanical cams and
overcome the limitation of the mechanical cam shapes. You can use the E-Cam function as long
as it is a master-slave application and their positions can translate into a mathematical formula.
The mechanical cam and E-Cam are shown in Figure 7.3.1.
(1) Master axis input; (2) Mechanical cam; (3) Slave axis output; (4) E-Cam master axis input
Figure 7.3.1 Mechanical cam and E-Cam
The E-Cam function is only available in PR mode (P1.001 = 1). The slave axis operates based
on the cam curve; the positions of the master and slave correspond to a mathematical function.
The master axis sends pulses to the slave axis so the slave axis runs according to the
corresponding E-Cam curve, as shown in Figure 7.3.2. P5.088.X can enable or disable the
E-Cam function. When this function is enabled, the servo drive determines the clutch
engagement and disengagement timings. Figure 7.3.3 introduces the E-Cam parameters with a
mechanical cam illustration. See the detailed settings in the following section.
Slave position
(PUU)
Pulse number of master axis
Corresponding
position of slave axis
Master position
(Pulse)
Figure 7.3.2 E-Cam curve