6
6.3 Axis couplings (from SW 3.3)
6-452
Siemens AG 2005 All Rights Reserved
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
The slave drive cannot autonomously reference if there is a permanent
coupling. Instead, the master drive specifies the referencing motion.
Using passive referencing, the slave drive can also be referenced.
When executing passive referencing, the slave drive is precisely re–
positioned at its own reference point.
The following commissioning help is available to determine and enter
the reference point offset for the slave drive.
This means, e.g. that it is possible, for a gantry group, to automatically
correct any possible skewing.
Passive referencing is possible for axes with absolute or incremental
encoder. However, the drive with the absolute value encoder must first
be adjusted using absolute value setting (Fault 176).
Master and slave drive with incremental encoder.
Traversing profile
Slave drive
(encoder:
incremental)
(permanent coupling)
possible offset due to ”soft” coupling
Phase 1 2 3 4
Zero mark
Reference point
(P0160)
Output signal
”in synchronism”
Input signal
”request passive referencing”
Synchronization
function
Zero mark
P0162
Reference
point (P0160)
P0162
Traversing profile
Master drive
(encoder: incremental)
Output signal
”request passive referencing”
P0160 Reference point coordinates
P0162 Reference point offset
Input signal
”reference cams”
Fig. 6-37 Sequence when passively referencing (master and slave drive with incremental encoder)
Passive
referencing for a
slave drive
(from SW 5.1)
6 Description of the Functions
02.02
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