Lenze E94AxHE Technology Application Synchronism - Manual (Page 12)

9400 Technology applications | Synchronism with mark synchronisation
Introduction
Virtual master/real master
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EDS94TA10040xxxx EN 1.1 - 10/2008
3.2 Virtual master/real master
Virtual master
[3-1] Example "Virtual master" (with master value transmission via digital frequency extension module)
Real master
[3-2] Example "Real master" (with master value transmission via digital frequency extension module)
r In an interconnection, a drive takes
over the task of the (virtual) master
and is the first slave drive at the same
time.
r The master value created in the TA by
the "Virtual master" function is
transmitted via a bus system or the
digital frequency output to the other
slave drives.
d v
R
i
v
Virtual master /
Slave 1
X10: DFout
r The master value for a slave drive can
be also specified by a real master (e.g.
external encoder).
r The master value can be specified e.g.
via the digital frequency input of the
master frequency extension module or
a bus system.
r The master value (possibly conditioned
in the TA) by the "Virtual master"
function is transmitted via a bus
system or the digital frequency output
to the other slave drives.
d v
d v
R1
R2
1
2
i
1
i
2
v
1
v
2
X10: DFout
Real master/
Slave 1
X9: DFin