Siemens Sinamics S110 Function Manual page 250

Drive functions
7.3 Function modules
The following then happens:
● If the drive has not yet been homed, status bit r2684.11 (reference point set) is set to "1".
● If the drive has already been homed, status bit r2684.11 (reference point set) is not reset
● If the drive has already been homed and the position difference is less than the inner
● If the drive has already been homed and the position difference is more than the outer
● If the drive has already been referenced and the absolute value of the position difference
Note
Flying referencing is not an active operating mode. It is superimposed by an active operating
mode.
In contrast to searches for reference, flying referencing can be carried out superimposed by
the machine process.
As standard, for flying referencing, measuring probe evaluation is used; when enabled, the
measuring probe is selected (p2510) and the edge evaluation (p2511) (in the factory setting,
measuring probe 1 is always the measuring probe, flank evaluation in the factory setting is
always the 0/1 edge).
Instructions for switching data sets
In the following cases, when a DDS switch takes place, the current actual position value
becomes invalid (p2521 = 0) and the reference point (r2684.11 = 0) is reset.
● The EDS that is effective for the position control changes.
● The encoder assignment changes (p2502).
● The mechanical relationships change (p2503...p2506)
With absolute encoders, the status of the adjustment (p2507) is also reset, if the same
absolute encoder is selected for the position control although the mechanical relationships
have changed (p2503 ... p2506).
In operating mode, a fault message (F07494) is also generated.
Function diagrams (see SINAMICS S110 List Manual)
● 3612 Referencing
● 3614 Flying referencing
248
when starting flying referencing.
window (p2601), the old actual position value is retained.
window (p2602), warning A07489 (reference point offset outside window 2) is output and
the status bit r2684.3 (pressure mark outside window 2) set. No offset to the actual
position value is undertaken.
is greater than the inner window (p2601) and less the outer window (p2602), then the
position actual value is corrected.
Function Manual, 01/2011, 6SL3097-4AB10-0BP3
Function Manual