Lenze E94AxHE Technology Application Electronic gearbox - Manual (Page 11)

EDS94TA10030xxxx EN 1.2 - 11/2009
L
11
9400 Technology applications | Electronic gearbox
Introduction
Virtual master/real master
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)
 In an interconnection, a drive takes
over the task of the (virtual) master
and is the first slave drive at the same
time.
 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
 The master value for a slave drive can
be also specified by a real master (e.g.
external encoder).
 The master value can be specified e.g.
via the digital frequency input of the
master frequency extension module or
a bus system.
 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