S
IN
A
MICS G1
20 CU250
S
-2 Contr
ol
Units
List Manual, 09/201
7, A5E33842890
90
9
3
F
un
ction dia
g
ra
ms
3.18
V
e
cto
r contr
o
l/
U/f contr
o
l
F
ig.
3
-155
67
22 – Fie
ld wea
kenin
g characte
ristic, flux
setpoi
nt (ASM,
p0
300
=
1)
- 6722 -
Function diagram
8
7
6
5
4
3
2
1
fp_6722_97_55.vsd
Vector control / U/f control
G120 CU250S-2
05.09.2017
V4.7.9
Field weakening characteristic, flux setpoint (ASM, p0300 = 1)
For vector control without encoder (SLVC).
ASM: Asynchronmotor (induction motor)
<1>
Flux setp smooth [%]
r1583
0.9
1
0
f
y
[6730.4]
[6640.3]
[6723.1]
[6723.3]
[2526.2]
[2526.2]
Voltage max [Vrms]
r0071
ZSW cl-loop ctrl
r0056
r0056
.8
ZSW cl-loop ctrl
r0056
r0056
Field weakening
characteristic
Id_set
calculation
Flux setpoint
calculation
Magnetization control
Id current limit
MotMod status
r1751
r0067
Current max [Arms]
r0063
Actual speed [rpm]
Quick magnetizing active
[6723.7]
[0]
[6730.1]
+
+
–
Mot I_mag_rtd act [Arms]
r0331 [M]
.4
[6060.6] r1508
M_set bef. M_suppl [Nm]
1 = Magnetization completed
1 = Field weakening active
[6723.1]
<1>
Flux setpoint
selection
Efficiency optimization
<0.3 s
Mot T_rotor/T_Dd [ms]
r0384 [M]
r0080
Actual torque [Nm]
r0084
Flux act val [%]
1
0
Flux ctrl config
p1401
Optimum flux [%]
r3313
Efficiency optimization 2
.14
I_set T_smooth
p1616 [D]
1 = Flux setpoint soft starting active
p1401.2
p1401.6
1 = Quick magnetization
1 = Flux build-up control active
p1401.0
p1401.1
1 = Flux setpoint, differentiation active
M_suppl_accel
p1611 [D]
M_set static
p1610 [D]
Efficiency opt.
p1580 [D]
Field weak T_smth
p1584 [D]
Field weak scal
p1586 [D]
Mot t_excitation
p0346 [M]
Flux setp T_smth
p1582 [D]
Min flux lim val
p3315 [D]
Max flux lim val
p3316 [D]
Flex setp [%]
p1570 [D] (100.0)