Motor Data Identification And Rotating Measurement - Siemens SINAMICS S120 Function Manual

Operating Modes
Vector control
3.2.11

Motor data identification and rotating measurement

Description
Two motor identification options, which are based on each other, are available:
S Standstill measurement with p1910 (motor identification)
S Rotating measurement with p1960 (determining the saturation characteristic)
These can be selected more easily via p1900. 1900 = 2 selects the standstill mea-
surement (motor not rotating). p1900 = 1 also activates the rotating measurement;
p1900 = 1 sets p1910 = 1 and p1960 in accordance with the current control type
(p1300).
If a permanent-magnet synchronous motor is used (p0300 = 2), encoder adjust-
ment is activated automatically (p1990 = 1) when the rotating measurement is per-
formed (p1960 > 0 or p1900 = 1). The method used can be set in p1980 (see also
Subsection 3.2.12).
Parameter p1960 is set depending on p1300:
S p1960 = 1, when p1300 = 20 or 22 (without encoder)
S p1960 = 2, when p1300 = 21 or 23 (with encoder)
The measurements parameterized via p1900 are started in the following sequence
after the drive has been enabled:
S Standstill measurement, pulse inhibit and parameter 1910 reset to 0 after the
measurement has been successfully completed.
S Encoder adjustment, pulse inhibit and parameter 1990 reset to 0 after the
measurement has been successfully completed.
S Rotating measurement, pulse inhibit and parameter 1960 reset to 0 after the
measurement has been successfully completed.
S Once all the measurements activated via p1900 have been successfully
completed, the parameter is reset to 0.
Note
To set the new controller setting permanently, the data must be saved in a
non-volatile memory (see also "Parameters").
Danger
!
During motor identification, the drive may cause the motor to move. The
emergency OFF functions must be fully operational during commissioning. To
protect the machines and personnel, the relevant safety regulations must be
observed.
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© Siemens AG, 2005. All rights reserved
SINAMICS S120 Function Manual, 06/05 Edition