Zero Mark Emulation - Siemens SINAMICS S120 Function Manual

Basic functions
6.23 Terminal Module 41
6.23.3

Zero mark emulation

For determining the zero mark position for zero mark emulation of the TM41, all referencing
modes that are permissible via the encoder interface of the drive object can be used. The
TM41 then uses the same mode parameterized in the drive object.
Possible referencing modes include e.g.
● Referencing to the zero position of the encoder
● Referencing to the zero position of the encoder with selection of the correct zero position
● Referencing to an external zero mark connected via an input terminal (CU parameter
● The position of the zero mark that is output is synchronized to the zero position of the
Note
Original encoder with several zero marks
If the original encoder (leading encoder) has several zero marks/positions, an additional
condition (BERO signal) must be selected for the required zero mark.
Adjustable zero mark offset at the TM41 output
An offset of the pulse grid can be set for the the zero mark position of the encoder emulation
using p4426.
354
– Encoder zero mark of an incremental encoder
– Zero point of the singleturn position of an absolute encoder
– Pole pitch of the resolver
using a BERO switching signal (CU parameter p0493)
p0495)
original encoder.
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
Drive functions