Siemens SINAMICS S120 - Referencing

Function modules
8.8 Basic positioner
Drive functions
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
517
8.8.4
Referencing
After a machine has been switched on, for positioning, the absolute dimension reference
must be established to the machine zero. This procedure is referred to as referencing.
The following referencing types are possible:
● Setting the reference point (all encoder types)
● Incremental encoder
Active referencing (reference point approach; p2597 = 0):
– Reference cams and encoder zero mark (p2607 = 1)
– Encoder zero mark (p0495 = 0 or p0494 = 0)
– External zero mark (p0495 ≠ 0 or p0494 ≠ 0)
● Flying referencing (passive; p2597 = 1)
● Absolute encoder
– Absolute encoder adjustment
– Flying referencing (passive; p2597 = 1)
Note
Observe the information about the parameters in Chapter "
Function diagrams and
parameters
(Page 527)".
A connector input is provided to enter reference point coordinates for all types of referencing.
This allows, e.g. changes/input via the higher-level controller. However, to permanently enter
the reference point coordinate, an adjustable parameter for this quantity is also required. As
standard, this adjustable parameter p2599 is interconnected to connector input p2598.
Features
● Reference point offset (p2600)
● Reversing cams (p2613, p2614)
● Reference cam (p2612)
● Binector input start (p2595)
● Binector input setting (p2596)
● Velocity override (p2646)
● Reference point coordinate (p2598, p2599)
● Referencing type selection (p2597)
● Absolute encoder adjustment (p2507)