Drive Functions - Siemens SINAMICS G150 Operating Instructions Manual

Functions, monitoring, and protective functions

9.2 Drive functions

Function diagrams
At certain points in this chapter, reference is made to function diagrams. These can be found
on the customer DVD in the "SINAMICS G130/G150 List Manual", which provides
experienced users with detailed descriptions of all the functions.
9.2 Drive functions
9.2.1 Motor data identification and automatic speed controller optimization
Description
Two motor identification options, which are based on each other, are available:
● Motor identification with p1910 (standstill measurement)
● Rotating measurement with p1960 (speed controller optimization)
These can be selected more easily via p1900. p1900 = 2 selects the motor identification
(motor not rotating). p1900 = 1 also activates the rotating measurement; setting p1910 = 1
and p1960 depending on the current control type (p1300).
Parameter p1960 is set depending on p1300 as follows:
● p1960 = 1, if p1300 = 20 or 22 (encoderless control)
● p1960 = 2, if p1300 = 21 or 23 (control with encoder)
The measurements parameterized using p1900 are started in the following sequence after
the corresponding drive has been enabled:
● Motor identification at standstill, after the measurement has been completed, the pulses
are inhibited and parameter p1910 is reset to 0.
● Encoder adjustment - after the measurement has been completed, the pulses are
inhibited and parameter p1990 is reset to 0.
● Rotating measurement - after the measurement has been completed, the pulses are
inhibited and parameter p1960 is reset to 0.
● After all of the measurements activated using p1900 have been successfully completed,
p1900 itself is set to 0.
Note
Non-volatile saving
To set the new controller setting permanently, the data must be saved with p0977 or p0971
in a non-volatile memory.
476
Converter cabinet units
Operating Instructions, 07/2016, A5E03347396A