3
F
unction
d
iag
ram
s
3.18
V
e
ctor control
/U
/f control
SINAMICS G120
C
U
250S-2 C
ontrol Units
90
6
List Manua
l, 09/2
017
, A5E3384289
0
F
ig.
3
-152
67
10 – Current setpoin
t filter
- 6710 -
Function diagram
8
7
6
5
4
3
2
1
fp_6710_97_56.vsd
Vector control / U/f control
G120 CU250S-2
05.09.2017
V4.7.9
Current setpoint filter
Iq_max
Iq_min
[6640.8]
[6220.8]
[6220.8]
[2526.7]
[6220.8]
[6640.8]
0
1
0
1
[2526.7]
[6220.8]
ZSW cl-loop ctrl
r0056
r0056
.14
Isq_max [Arms]
r1536
ZSW cl-loop ctrl
r0056
r0056
Isq_min [Arms]
r1537
r0077
Iq_set [Arms]
Interpolator and
smoothing for
voltage limits
0
1
1
0
[2526.7]
ZSW cl-loop ctrl
r0056
r0056
.15
.7
1 = Vdc_max controller active
1 = Vdc_min controller active
1 = Frequency, negative
Isq_s T_smth FW
p1654 [D]
[6714.1]
[6721.1]
[6721.8]
[6730.1]
Iq
M
[6060.8] r0079
M_set [Nm]
r3841
Frict outp [Nm]
[7010.7]
+
+