Lenze E94AxHE Technology Application Synchronism - Manual (Page 14)

9400 Technology applications | Synchronism with mark synchronisation
Introduction
Master or actual value transfer?
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EDS94TA10040xxxx EN 1.1 - 10/2008
Cascade structure
Each drive obtains its own master value/master angle which is created or merely prepared
through the upstream drive.
3.6 Master or actual value transfer?
Master value transmission
The master value transfer results in a much quieter machine running. The mark
corrections, superimposed control functions and disturbances of the drive, however, do
not affect the system.
Actual value transfer
The actual value transfer results in an uneven machine running. Mark corrections,
superimposed control functions and disturbances of the leading drive affect the system.
3.7 Absolute or relative master angle processing?
Absolute master angle processing
All drives have a common fix reference to each other via the position of the master angle.
Relative master value/master angle processing
Stands for a high-precision transmission of the master value. However, there is no firm
reference to the other drives (e.g. in case of a material path each printing roll is
synchronised one by one to the print image).