6
6.3
Axis couplings (from SW 3.3)
6-431
Siemens AG 2005 All Rights Reserved
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
6.3
Axis couplings (from SW 3.3)
”SIMODRIVE 611 universal” allows drives to be coupled via
PROFIBUS–DP or via terminals.
The main applications include:
Position reference value and position actual value coupling
(”synchronous operation”)
––> Refer to Chapter 6.3.1
Torque setpoint coupling (”master/slave operation”)
––> Refer to Chapter 6.3.3
Communications is realized using PROFIBUS–DP slave–to–slave com-
munications. One or several slaves (drives) are operated as publishers,
i.e. they not only provide their actual values to the DP master, but also
to other slaves (subscribers) per broadcast.
Configuring defines which subscribers accept which data as setpoints
from which publisher.
From the perspective of the coupling, the master drive is a publisher
and a slave drive is a subscriber.
The coupling is realized for a
Position actual value coupling via the angular incremental encoder
interface (X461/X462) where the direction can be changed–over.
Up to 31 angular incremental encoder inputs can be connected at
angular incremental encoder output. The terminating resistor should
be switched–in at the last device (node) (S1.7 and S1.8).
Torque coupling via analog inputs (X441/X442) or analog outputs
(X451/X452).
6.3.1
Position reference value and position actual value coupling
The master drive must output process data via PROFIBUS–DP which
the slave drive can use as position reference value. The following pro-
cess data is available:
XsollP (position reference value, number 50208)
XistP (position actual value, number 50206)
Depending on the actual requirements, it is possible/necessary to out-
put additional process data.
Beyond the output of these signals, the master drive is parameterized
as a conventional positioning drive (”Positioning” mode, P0700 = 3).
General
information
Coupling via
PROFIBUS–DP
Coupling via
terminals
”SIMODRIVE 611
universal” as
master drive
6 Description of the Functions
01.99
07.03