Function Diagrams
Servo control
2-1284
© Siemens AG 2007 All Rights Reserved
SINAMICS S List Manual (LH1), 07/2007
Figure 2-166 5722 – Field current input, flux controller
- 5722 -
Function diagram
87654321
fp_5722_01_eng.vsd
DO: SERVO
SINAMICS S
15.05.07 V02.05.00
Servo control - Field current input, flux controller
(Only for synchronous motor with reluctance torque)
mot phi_load opt
p0327 [M]
Field current setpoint for
synchronous motor
Speed at the start
of field weakening
Short-circuit
current I
sc
Speed at the
start of field
weakening
Img
magnetizing
current
Flux setpoint for induction motor
0
>0
Mot n_field weaken
p0348[M]
Mot I_mag_rated
p0320[M]
Motor data
r0331
Mot I_mag_ratedAct
0
1
T0
Id_set_1
Current limit
p0640[D]
Mot I_max
p0323[M]
Synchronous motor
-1
Id_set_3
Field current limiting
A07411
"Flux controller
output limited"
r0075
Id_set
[5714.4]
Induction motor
Kp Tn
Flux controller
r0083
[%] from ijn
Flux setpoint
Motor model
r0084
Flux actual value
[%] from ijn
+
–
+
+
Id_set_2
Pre-control
Flux controller
Kp
p1590[D]
Flux controller
Tn
p1592[D]
ij
Ʉ
I
F
n
I
mg
p0348
n
I
F
-I
sc
p0348
Min
Maximum current from Motor Module
i_max_MM
[5730.4]
0.9
imax
2
– id_set_4
2
I_max
[5640.6]
I_outp max
r0067
r1533
Iq_max total
Synchronous motor
Induction motor
p0115[1] (125.00 µs)
p0115[1] (125.00 µs)
1000.00 µs
r0331
r0331
<1> p0323 is not considerd for induction motors.
1000.00 µs
1000.00 µs
<1>
[2530.7]
16 [ms]
Computation
model
Limit Id_set
r1408.9