S
IN
A
MICS G1
20 CU250
S
-2 Contr
ol
Units
List Manual, 09/201
7, A5E33842890
88
5
3
F
un
ction dia
g
ra
ms
3.1
7
En
co
de
r ev
alu
at
ion
F
ig.
3
-132
47
35 – Referen
ce
mark search with externa
l ze
ro
ma
rk, encod
er
1
- 4735 -
Function diagram
8
7
6
5
4
3
2
1
fp_4735_97_55.vsd
Encoder evaluation
G120 CU250S-2
05.09.2017
V4.7.9
Reference mark search with equivalent zero mark, encoder 1
[2231.5]
[2230.5]
x
y
Store
<1>
&
Q
D
<2>
1
&
0
25
27
<3>
Store
1
0
1
1
0
1
Activate selected function
Selecting the function to be activated
ZM_equiv inp_term
0 ... 27
p0494 [E] (0)
"Fast inputs"
From the
digital
inputs/
outputs
D memory
element (flip-flop)
Measured value memory
Gn_XIST2
for function no. = 1
Increasing position actual values (r0482): The 0/1 edge is evaluated.
Decreasing position actual values (r0482): The 1/0 edge is evaluated.
This means that the same reference point is always used when traversing to an equivalent zero mark.
The measured value memory is read out using a handshaking technique according to [4720], [4730].
Reference mark
position to the
encoder interface
[4704.5]
Position actual value 1 from encoder n
[4704.8]
All other bits in the encoder control word must be 0.
No equivalent zero mark
(p0494 = 0)
(evaluate the encoder zero
mark for encoder n)
r0482 [n-1]
Enc Gn_XIST1
r0487[n-1].0
Geb Gn_STW
r0487[n-1].4
Geb Gn_STW
r0487[n-1].7
Geb Gn_STW
Pr or ZM_equiv inv
p0490.25
Pr or ZM_equiv inv
p0490.27
<1>
<2>
<3>
[4720.5]
[4720.5]
[4720.5]
Содержание SINAMICS G120
Страница 1: ...SINAMICS SINAMICS G120 CU250S 2 Control Units List Manual 09 2017 Edition www siemens com drives ...
Страница 2: ......
Страница 726: ...2 Parameters 2 6 Quick commissioning p0010 1 SINAMICS G120 CU250S 2 Control Units 726 List Manual 09 2017 A5E33842890 ...
Страница 990: ...3 Function diagrams 3 26 Data sets SINAMICS G120 CU250S 2 Control Units 990 List Manual 09 2017 A5E33842890 ...
Страница 1242: ...A Appendix A 2 List of abbreviations SINAMICS G120 CU250S 2 Control Units 1242 List Manual 09 2017 A5E33842890 ...
Страница 1255: ......