Lenze Engineer v2.21 - Manual (Page 184)

Defining the system functionality
Creating an interconnection via the electrical shaft
184
Lenze · Engineer · 2.13 EN - 10/2014
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8.14.2 Synchronisation of the tools with a material
In the case of this relative coupling, the tools are not synchronised with each other but with the
material path (e.g. by means of a touch probe sensor). Therefore in such applications, a master
speed is needed.
[8-10] Principle: mark-controlled synchronisation of the tool to the material
• The master speed is either taken from the material path via an encoder or is stipulated in
advance by the drive that determines the speed (virtual master).
• The tools rotate and are therefore modulo with a fixed modulo cycle.
• The material is modulo with a variable cycle (is measured if necessary, e.g. in the case of foil).
• The curves are created for a nominal cycle/register.
• Adaptation to the measured cycle is carried out individually for each tool in the drive by
means of its own sensors during the runtime.
 Mark track on the material
 Mark sensor for detecting the register on the material (touch probe evaluation within the controller)
 Master value encoder (TTL incremental encoder; supplies speed by means of digital frequency input)
 Controller with electronic cam technology
 Orientation of the tool to the material (here: to the cutting mark)