Siemens SIMODRIVE 611 universal Function Manual page 443

01.99 06.04 08.01
Coupling to an With this function, the slave drive, for P0410 = 7 or 8, synchronizes to
absolute position the absolute position of the master drive plus an adjustable offset
(P0410 = 7 or 8) P0412. After synchronization, the master and slave drives have the
(from SW 4.1) same absolute position with the exception of the offset P0412.
The coupling can be switched–in/out using an input signal (P0410 = 7)
or using a traversing block (P0410 = 8).
The following secondary conditions must be observed in order to real-
ize a coupling to an absolute position:
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S
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SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
For P0891 = 2, 3 or 4, the master drive absolute position is available
to the slave drive.
For P0891 = 0 or 1, the slave drive absolute position is not automat-
ically made available to the slave drive.
The reference point coordinates are communicated to the slave
drive once using the input signal "set position reference value,
master drive" (function number 74) if the source of the external posi-
tion reference value is either the angular incremental encoder inter-
face (P0891 = 0), or for double–axis modules, the motor encoder of
drive A (P0891 = 1). The value of P0400 (reference point coordi-
nate, master drive) is written into P0032 (external position reference
value).
After a positive edge, the display parameter P0032 "External posi-
tion reference value" coincides with the master drive absolute posi-
tion.
A coupling should only be closed at the absolute position of the
master drive after "set setpoint, master drive" as only then can be
guaranteed that the slave drive has been correctly referenced.
––> refer to the example, Chapter 5.10.5
6 Description of the Functions
6.3 Axis couplings (from SW 3.3)
6
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