Efficient Networks S120 manual Pole position identification, Standstill measurement

Models: S120

1 560
Download 560 pages 21.93 Kb
Page 98
Image 98

Servo control

3.13 Pole position identification

0RWRU0RGXOH

6HULHVLQGXFWDQFH

&DEOH

 

 

0RWRU

 

 

 

 

 

 

S

S

 

 

 

 

 

 

 

 

 

S>0@

S>0@

S>0@

S>0@

 

 

/

YDU

5FDEOH

5

6

/

˰6

 

 

 

 

 

 

 

 

 

 

 

 

 

S>0@

 

 

 

 

 

 

 

0RWN(

Figure 3-19 Equivalent circuit diagram for synchronous motor and cable

Overview of key parameters (see SINAMICS S List Manual)

● r0047 Status identification

Standstill measurement

p1909 Motor data identification control word

p1910 Motor data identification, stationary

Rotating measurement

p1958 Motor data identification ramp-up/ramp-down times

p1959 Rotating measurement configuration

p1960 Rotating measurement selection

3.13Pole position identification

Description

For synchronous motors, the pole position identification determines its electrical pole position, that is required for the field-oriented control. Generally, the electrical pole position is provided from a mechanically adjusted encoder with absolute information. In this case, pole position identification is not required. For the following encoder properties, pole position identification is not required:

Absolute encoder (e.g. EnDat)

Encoder with C/D track and pole pair number ≤ 8

98

Drive Functions

Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4

Page 98
Image 98
Efficient Networks S120 manual Pole position identification, Standstill measurement, Rotating measurement