Siemens SINAMICS S110 List Manual page 900

Current limit
p0640
I_act abs val
1
Stop ramp-function
r0068
generator
0
Pole pair number p
r0313[M]
n_ctrl n_set
f_set_1
p n
[5030.8] r1438 f
60
f_max
n_max (p1082)
p n
[3050.6]
f
[3095.7]
60
Reference variable for
the ramp-up time
V/f resonance damping
1
f_soll_2
3,1 Hz 95 % x p1349
4,77 Hz
p1349
f_outp
[6714.4] r0078
Vf T res damp
p1339 (20.00)
<1> The changeover to V/f control is represented at [5730.2].
<2> For p1349 = 0: Limit at 0,95 x f <= 45 Hz.
Mot N
<3> Max. ramp steepness is also influenced by Vdc controller (p1240  0).
1 2
DO: SERVO
Servo control - V/f control
r1538
<3>
Max.
r1318 ramp
steepness
Vf t_rmp-up_rmp-dn
0.000...999 999.000 [s]
p1318[D] (10.000)
f
max
(Synchronous
0
frequencies)
Safety ramp-function generator
for V/f control (as stall
protection)
Vf gain res damp
f/f
Mot N
p1338 (1.00)
<2>
f_res damp
–
+
3 4
r1539
<3>
r1493
f_set_2
Pole pair number p
f
Vf char U4
0.0...10 000.0 [V]
p1327[D] (0.0)
Vf U at f=0 Hz
0.0...50.0 [V]
p1319[D] (0.0)
+
+
5
fp_5300_98_eng.vsd
30.09.11 V04.04.00
p0115[0] (125.00 μs)
n_act smooth [rpm]
60 f
n r0063
p
r0313[M]
Uq_set_3
<1>
V/f characteristic
U
V_set Ud_set_3
430 V
f
Vf char f4
0.00...10 000.00 [Hz]
p1326[D] (0.00)
f_outp
r0066
f_outp smooth
100 ms
r0024
F07801
"Motor overcurrent"
Monitoring
(No automatic current limiting
for V/f control)
6 7
Function diagram
SINAMICS S120
To current control
[5730.1]
8
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