Siemens SINAMICS S Manuel page 1113

1 encoder revolution
C
D
Zero mark
C,D
[4704.8]
u
Fine resolution
A,B
p
for the speed
actual value
dn
Raw position
signals from
encoder 1
n_act measurement
<1> The [E]ncoder data set changeover is represented at [8570].
<2> Ratio between the electrical and mechanical pole position (= motor pole pair number).
1 2
DO: SERVO, VECTOR
Encoder evaluation - speed act. value and pole pos. sensing for motor encoder (encoder 1)
Inv encoder actual value
<2>
Enc commut_factor
r0451
Pole position sensing
Incl. measuring gearbox
p432[E],p433[E]
Gearbox enc Inv enc. act. val.
p0432[E] p0410.0[E]
0
dx
x y
dt
-1
1
III
Gearbox mot
p0433[E]
[2522.6]
3 4
p0410.0[E]
<1>
Pole pos el norm
0
r0093
-1
1
Inv encoder actual value
p0410.0[E]
<1>
0
Transformat_angle
r0094
-1
1
n_act T_smooth
<1>
0.00...20.00 ms
Direction reversal
p1821[D] p1441[D] (0.00)
0
0
-1
1
1
Smoothing
n_act motor
encoder
r0061
n_act calculation
1 = Sensorless operation active
r1407.1
(refer to p1300 [5060])
5
fp_4710_01_eng.vsd
02.03.06 V02.04.00
p0115[0] (125.00 µs)
n_act smooth
100 ms
r0021
n_act smooth
r0063
To brake control [2701.1]
To extended brake control/standstill identification. [2704.1]
To speed controller [5040.2]
To Kp_n and Tn_n_adaptation [5050.1]
To change over the control type [5060.2]
To speed controller [5210.5]
To torque limits [5620.6] To power limiting [5640.1]
To speed messages/signals [8010.1]
6 7
Function diagram
SINAMICS S
8
- 4710 -