Siemens SINAMICS S Series - Figure 2-149 4740 - Measuring probe evaluation, measured value memory, encoders 1... 3

Function Diagrams Encoder evaluation 2-1266
© Siemens AG 2007 All Rights Reserved
SINAMICS S List Manual (LH1), 07/2007
Figure 2-149 4740 – Measuring probe evaluation, measured value memory, encoders 1 ... 3
- 4740 -
Function diagram
87654321
fp_4740_01_eng.vsd
DO: SERVO, VECTOR
SINAMICS S
12.03.07 V02.05.00
Encoder evaluation - Measuring probe evaluation, measured value memory, encoders 1 ... 3
p0490.15
p0490.14
p0490.13
p0490.11
p0490.10
p0490.9
DI15_probe
(X132.11)
[2133.4]
DI14_probe
(X132.10)
[2133.4]
DI13_probe
(X132.8)
[2132.4]
DI11_probe
(X122.11)
[2131.4]
DI10_probe
(X122.10)
[2131.4]
DI9_probe
(X122.8)
[2130.4]
"Fast inputs"
Measuring probe 2 input
0...6
p0489[n-1] (0)
Measuring probe 2 deflected
to Gn_ZSW9 [4730.2]
Measuring probe evaluation
This function is provided once for each of
the maximum 3 encoders.
STW for encoder n
Gn_STW [4720]
r0487[n-1].0
Gn_XIST2
for function No. = 1
Gn_XIST2
for function No. = 2
Gn_XIST2
for function No. = 3
Gn_XIST2
for function No. = 4
xy
Store
xy
Store
xy
Store
xy
Store
<1>
<2>
4 measured value memory
Up to 4 measuring functions can be simultneously active; the measured value
memory is read out using a handshaking technique according to [4720], [4730].
<1>
Index [n-1] --> encoder n (n = 1, 2, 3)
Index [0] --> encoder 1
Index [1] --> encoder 2
Index [2] --> encoder 3
&
&
&
&
r0487[n-1].1
r0487[n-1].3
r0487[n-1].2
r0487[n-1].4
r0487[n-1].7
&
Q
D
Q
D
Q
D
Q
D
Selecting the function to be activated
Store
D memory
element (flip-flop)
Activate selected function
(no measuring probe for encoder n)
0
1
0
2
3
4
5
6
0
1
2
3
4
5
6
x=
Measuring probe 1 deflected
to Gn_ZSW8 [4730.2]
From the
digital
inputs/
outputs
Measuring
probes
positions to
the encoder
interface
[4704.3]
<3>
<4>
<3> All other bits of the encoder control word must be 0.
r0483[n-1]
Position actual value 1
from encoder n
[4704.8]
1
0
1
1
0
1
1
0
1
1
0
1
1
0
1
1
0
1
Measuring probe 1 input
0...6
p0488[n-1] (0)
0
1
2
3
4
5
6
<4> These measuring probe inputs only exist on the CU320.
<4>
<4>
Refer to [1020.7]
PROFIdrive sampling time
<5> Only for CU_S and CU_CX32.
<5>
<5>
<5>
<5>
<5>
<5>