Siemens SINAMICS S Series - Figure 2-143 4710 - Speed act. value and pole pos. sens., motor enc. (encoder 1)

Function Diagrams Encoder evaluation 2-1260
© Siemens AG 2007 All Rights Reserved
SINAMICS S List Manual (LH1), 07/2007
Figure 2-143 4710 – Speed act. value and pole pos. sens., motor enc. (encoder 1)
- 4710 -
Function diagram
87654321
fp_4710_01_eng.vsd
DO: SERVO
SINAMICS S
20.09.06 V02.05.00
Encoder evaluation - Speed actual value and pole pos. sensing, motor encoder (encoder 1)
r0063
n_act smooth
r1407.1
n_act calculation
r0061
n_act motor
encoder
Smoothing
[2522.6]
1 = Sensorless operation active
To speed controller [5040.2]
To torque limits [5620.6] To power limiting [5640.1]
To speed messages/signals [8010.1]
Pole position sensing
Incl. measuring gearbox
p432[E],p433[E]
r0093
Pole pos el norm
r0094
Transformat_angle
n_act T_smooth
0.00...20.00 ms
p1441[D] (0.00)
Raw position
signals from
encoder 1
(refer to p1300 [5060])
Inv enc. act. val.
p0410.0[E]
n_act smooth
r0021
0
1
p0115[0] (125.00 µs)
<2> Ratio between the electrical and mechanical pole position (= motor pole pair number).
<1> The [E]ncoder data set changeover is represented at [8570].
<1>
<2>
Enc commut_factor
r0451
III
u
p
dn
yx
A,B
[4704.8]
Fine resolution
for the speed
actual value
Zero mark
1 encoder revolution
C
D
n_act measurement
-1
0
1
dx
dt
C,D
To change over the control type [5060.2]
To brake control [2701.1]
To Kp_n and Tn_n_adaptation [5050.1]
To speed controller [5210.5]
100 ms
Inv encoder actual value
p0410.0[E]
<1>
-1
0
1
Inv encoder actual value
p0410.0[E]
<1>
-1
0
1
To extended brake control/standstill identification. [2704.1]
Dir rev rot field
p1821[D]
-1
0
1
Gearbox enc
p0432[E]
Gearbox mot
p0433[E]