Setting The Flying Referencing - Siemens SINAMICS G120 Instruction Manual

6.6.3

Setting the flying referencing

Description
During motion, the load passes a reference cam. The converter evaluates the reference cam
signal via a suitable fast digital input, and corrects its calculated position during travel. The fast
digital inputs of the converter used for flying referencing are also called probe inputs.
For flying referencing, the converter corrects the position setpoint and actual value
simultaneously.
If the position actual value correction means that the axis has already passed the point where it
should start braking, then the axis travels beyond the target and approaches the target from the
opposite direction.
Figure 6-12
The converter sets the "Reference point set" signal back to zero after its supply voltage is
switched off and switched on again. The converter only corrects its position actual value for a 1
signal from "Start referencing". In this way, you can define, for example, the direction of travel
when the converter is referencing.
Setting flying referencing
Requirement
1. You have selected the "Homing" screen.
2. You have come to the settings via the button on the screen.
3. You have selected the "Passive referencing" screen.
Basic positioner
Function Manual, 09/2020, FW V4.7 SP13, A5E34257659B AG
Flying referencing
Commissioning
6.6 Referencing
63