Siemens SINAMICS G120D CU240D-2 DP Manual page 717

Induction motor and synchronous motor
Zero mark
Diag Gn_XIST1
Fine resolution
A,B
for speed actual
r0479 [0]
value
[4704.8]
Raw position
signals from
encoder 1
1 encoder revolution
[4704.8]
Zero mark
<1> Only for vector control without encoder.
<2> Only for operation with encoder and PMSM.
<3> For induction motors only (ASM).
1 2
Encoder evaluation
Speed actual value and pole pos. sensing, motor encoder ASM/PMSM (encoder 1)
Only for synchronous motor.
Pole position sensing
-1
n_act_measurement
Enc inv act value
p0410 [D]
0
up dx
x
dt
-1
1
dn
III
0
-1
1
3 4
Enc inv act value
p0410 [D]
0
Transformat_angle [°]
r0094 <2>
1
n_act T_smooth
0.00 ... 50.00 [ms]
p1441 [D] (0.00)
n_act unsmoothed [rpm]
r0061 [0]
[6731.1]
Smoothing
ZSW n_ctrl
r1407
1 = Sensorless operation active
[2522.6] r1407 .1
0
1
n_act calculation
[6730.1] <3>
[6731.1]
<4>
<1>
5 6
fp_4715_97_55.vsd
09.12.2015
Encoder angle
To basic braking control [2701.1]
To speed controller with/without encoder [6040.1]
To Kp_n-/Tn_n adaptation [6050.1]
n_act [rpm]
To current/power/torque limits [6640.1]
To Iq and Id controllers [6714.7]
r0063 [0]
To field-weakening characteristic [6722.1], [6724.1]
To display signals [6799.1]
To speed signals 1[8010.1]
To interface to the Motor Module [6730.1]
Disp_val T_smooth
0.00 ... 10000.00 [ms]
p0045 (4.00)
n_act [rpm]
r0063 [1]
7
Function diagram
SINAMICS G120D
V4.7.6
[6731.1]
8
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