Siemens SINAMICS S110 List Manual page 756

Switch-on delay
pxxxx
x
T 0
x y
The digital signal x must have the value "1" without any interruption
during the time T before output y changes to "1".
T T T T
x
y
Switch-off delay
pxxxx
x
0 T
x y
The digital signal x must have the value "0" without interruption during
the time T before output y changes to "0".
T T T T
x
y
Delay (switch-on and switch-off)
pxxxx pxxxx
x
T T
x 1 2 y
pxxxx pxxxx
The digital signal x must have the value "1" without interruption during
time T or must have the value "0" during time T before output y
1 2
changes its signal state.
T T T T
1 1 2 2
x
y
1 2
DO: All objects
Explanations for the function diagrams - Explanation of the symbols (Part 3)
PT1 element
y
T 0
pxxxx
pxxxx
y
t
Delay element, first order.
pxxxx = time constant
y
0 T
pxxxx
PT2 low pass
Natural frequency, denominator
fn_n
pxxxx
y
|y|
T T
1 2
x
fn
Transfer function
1
H(s) =
.
2
s
2 D_n
+
2 fn_n
2 fn_n
3 4
2nd-order filter (bandstop/general filter)
Natural frequency, numerator
Natural frequency, denominator
Used as bandstop filter
- center frequency fs:
- bandwidth f_B:
Damping, denominator
D_n
pxxxx
Transfer function when used as general filter
2
H(s) =
D
y
2
f
Analog adder can be activated
x
1
.
x
2
s + 1
I
5 6
fp_1022_98_eng.vsd
22.01.09 V04.04.00
Damping, numerator
fn_z D_z
pxxxx pxxxx
|y|
fs
x y
f_B
f
2nd Order Filter
Damping, denominator
fn_n D_n
pxxxx pxxxx
fn_z = fs
fn_n = fs
D_z = 0
f_B
.
D_n =
2 fs
.
s
2 D_z .
2
+ s + 1
fn_z 2 fn_z
.
2
s
2 D_n .
+ s + 1
fn_n
2 fn_n
The following applies to I = 1 signal: y = x
y
The following applies to I = 0 signal: y = x
7
Function diagram
SINAMICS S110
+ x
1 2
1
8
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