Siemens SINAMICS S120 Function Manual page 255

Drive functions

Hide thumbs Also See for SINAMICS S120:

Table of Contents

Rotating measurement (p1960 > 0): Sequence

The following measurements are carried out when the enable signals are set and a switch-

on command is issued in accordance with the settings in p1959 and p1960.

● Encoder test

If a speed encoder is used, the direction of rotation and the pulse number are checked.

● Induction motors only:

– Measurement of the saturation characteristic (p0362 to p0369)

– Measurement of the magnetizing current (p0320) and determination of the offset

– Measurement of the saturation of the leakage inductance, for induction motors, and

● Speed controller tuning

– p1470 and p1472, when p1960 = 1 (operation without encoder)

– p1460 and p1462, when p1960 = 2 (operation with encoder)

– Setting the Kp adaptation

● Acceleration precontrol setting (p1496, p1517)

● Setting for ratio between the total moment of inertia and that of the motor (p0342)

To set the new controller setting permanently, the data must be saved in a non-volatile

Unexpected motor motion during motor data identification

Motor movement caused when optimizing the speed controller can result in death, severe

injury or material damage.

• Ensure that nobody is in the hazardous zone - and that the mechanical system can

If speed controller tuning is used for operation with encoder, then the closed-loop control

operating mode is automatically changed over to closed-loop speed control without encoder,

so that the encoder test can be carried out.

Drive functions

Function Manual, 11/2017, 6SL3097-4AB00-0BP5

voltage of the converter for offset compensation

setting of the current controller adaptation (p0391...p0393)

This measurement is automatically activated with 1LA1 and 1LA8 motors (p0300 = 11,

18) (see p1959.5).

freely move.

5.13 Motor data identification and rotating measurement

Vector control

Show Quick Links

Table of Contents