Fig. 3-83 3050 – Skip frequency bands and speed limitations
- 3050 -
Function diagram
87654321
fp_3050_97_51.vsd
Setpoint channel
SINAMICS G120D
09.12.2015 V4.7.6
Skip frequency bands and speed limitations
[3040.8]
y
Max
-1
Min
<2>
1
0
0
Reference value for the ramp-
function generator
Limiting to negative
values
Maximum
limiting
active
[3080.4]
A skip speed of "0" deactivates the skip band.
r1114
Setp after limit [rpm]
n_limit neg
(1086[0])
p1088 [C]
n_limit pos
(1083[0])
p1085 [C]
r1112
n_set aft min_lim [rpm]
r1084
n_limit pos eff [rpm]
r1087
n_limit neg eff [rpm]
<1> <1><1>
-1 -1 -1 -1
y
x
-1
Value of p1082 is limited to maximum motor speed (p0322).
If the drive is not stopped via the input setpoint, but via controlled intervention, the lower hysteresis branch is relevant after a subsequent run-up.
n_limit RFG pos
(9733[0])
p1051 [C]
n_limit RFG neg
(9733[1])
p1052 [C]
0
0
r1119
RFG setp at inp
[rpm]
[6030.1]
[6640.5]
[8010.2]
[3020.6]
[3060.4]
[3070.4]
[3060.1]
[3070.1]
[5030.1]
[6031.1]
[6300.1]
[8021.1]
n_min s_src
(0)
p1106 [C]
Max
n_min [rpm]
p1080 [D] (0.000)
n_skip 2 [rpm]
p1092 [D] (0.000)
n_skip 4 [rpm]
p1094 [D] (0.000)
n_skip 3 [rpm]
p1093 [D] (0.000)
n_max [rpm]
p1082 [D] (1500.000)
n_limit neg [rpm]
p1086 [D] (-210000.000)
n_skip scal
(1)
p1098 [C]
n_skip 1 [rpm]
p1091 [D] (0.000)
<1>
w = p1101[D]
<3>
w
w
w
w
w
w
w
w
1
0
r1170
n_ctrl setp sum [rpm]
n_limit pos [rpm]
p1083 [D] (210000.000)
r1099.0
<3>
[3080.8]
effective
minimum speed
Skip speed
bandwidth
1 = r1170 within the
skip band
[6030.1]
[6640.5]
[8010.2]
<2>
<1>
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