Motor Data Identification - Siemens Sinamics S110 Function Manual

7.1.12

Motor data identification

7.1.12.1 Motor data identification
Description
Motor data identification (MotID) provides a means of determining motor data (of third-party
motors, for example). The drive system must have been commissioned for the first time as
basis for using MotID. To do this, either the electrical motor data (motor data sheet) or the
rating plate data must be entered and the calculation of the motor/control parameters
(p0340) must have been completed.
Commissioning involves the following steps:
● Enter the motor data or the rating plate data and the encoder data
● Complete calculation of the motor and control data as starting value for the MotID
● Carry out a static measurement (p1910)
● For synchronous motors: Carry out an angular commutation calibration (p1990) and if
● Carry out a rotating measurement (p1960)
The enable signals OFF1, OFF2, OFF3 and "enable operation" remain effective and can be
interrupt the motor identification routine.
Drive functions
Function Manual, 10/2008, 6SL3097-4AB10-0BP0
(p0340 = 3, if motor data, p0340 = 1, if rating plate data were entered)
required, fine synchronization (refer to r1992)
Before starting the rotating measurement, the speed controller setting should be checked
and optimized (p1460, p1462 and p1470, p1472).
It is preferable if the rotating MotID is carried out with the motor de-coupled from the
mechanical system. This therefore means that only the motor moment of inertia is
determined. The total moment of inertia with mechanical system can be subsequently
identified with p1959 = 4 and p1960 = 1. The stress on the mechanical system can be
reduced by parameterizing the ramp-up time (p1958) and/or using a speed limit
(p1959.14/p1959.15) or using the current and speed limit. The higher the selected ramp-
up time, the less accurate the moment of inertia determined.
Note
Completion of the individual identification runs can be read via parameters r3925 to
r3928.
Drive functions
7.1 Servo control
147