Technical data
Drive functions   
7.3 Function modules 
  Function Manual 
248  Function Manual, 06/2012, 6SL3097-4AB10-0BP4 
●  If the drive has already been homed and the position difference is more than the outer 
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. 
●  If the drive has already been referenced and the absolute value of the position difference 
is greater than the inner window (p2601) and less the outer window (p2602), then the 
position actual value is corrected. 
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 










