Siemens SINAMICS S Manuel page 1136

1000.00 µs
(only for synchronous motor with reluctance torque)
mot phi_load opt
p0327[M]
Field current setpoint for
synchronous motor
I
p0348
F
n
-I
r0331
sc
Short-circuit
Speed at the start
of field weakening current I
Mot n_field weaken
p0348[M]
Mot I_mag_rated
>0
p0320[M]
0
Computation
model
Motor data
Img
Speed at the
start of field magnetizing
current
weakening
Flux setpoint for induction motor
I
F
r0331 I
mg
n
p0348
1000.00 µs
1 2
DO: SERVO
Servo current control - field current setpoint, flux controller
Current limit
p0640[D]
Mot I_max
<1>
p0323[M]
Max. current from the Motor Module i_max_MM
[5730.4]
Synchronous motor
Id_set_1
1
0
Induction motor
sc
Mot I_mag_rated act
r0331
[%] from n
r0083
+ –
Flux setpoint
Flux actual value
r0084
Motor model
3 4
Drv I_outp max
r0067
I_max
2
Min
imax – id_set_4
0.9
Id_set_3
-1
Field current limiting
Pre-control
Flux controller Flux controller
Kp Tn
p1590[D] p1592[D]
Kp Tn
[%] from n
Flux controller
p0115[1] (125.00 µs)
5
fp_5722_01_eng.vsd
23.03.06 V02.04.00
Synchronous motor
Induction motor
p0115[1] (125.00 µs)
Iq_max total
2
r1533
[5640.6]
Id_set
r0075
[5714.4]
16 [ms]
T 0
Limit Id_set
r1408.9
[2530.7]
+
+
Id_set_2
<1> p0323 is not taken into account for induction motors.
6 7
Function diagram
SINAMICS S
1000.00 µs
A07411
"Flux controller
output limited"
8
- 5722 -