Pilz PMCprimo 16+.00/0/1/6/4 - Manual (Page 25)

7 PC based Motion Generator PMotion
User Manual for PMotion Page 25
7.7 Example of using the PC based Motion Generator PMotion
In the following example representing a printing machine a web is drawn through the machine
by using tension control. It is required to print on the web in dependence of existing print marks.
The circumference of the printing drum is not the same as the distance between the marks. The
speed of the drum has to match with the speed of the web while printing and to accelerate or
decelerate for the rest of the cycle for compensating the deviation between the drum
circumference and the print mark distance. The position data of the web is measured by an
encoder and of the drum by the encoder emulation of the motor amplifier.
A typical map for the print drum (Y-axis is slave) dependent on the web (X-axis is master) is: