Fig. 2-125 4740 – Probe evaluation, measured value memory, encoders 1 ... 2
- 4740 -
Function diagram
87654321
fp_4740_98_eng.vsd
DO: SERVO
SINAMICS S110
17.07.09 V04.04.00
Encoder evaluation - Measuring probe evaluation, measured value memory, encoders 1 ... 2
p0490.8
Measuring probe evaluation
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>
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].
Index [n-1] --> encoder n (n = 1, 2)
Index [0] --> encoder 1
Index [1] --> encoder 2
&
&
&
&
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
Activate selected function
(no measuring probe for encoder n)
0
Measuring
probes
positions to
the encoder
interface
[4704.3]
<3>
<3> All other bits of the encoder control word must be 0.
r0483[n-1]
Position actual value 1
from encoder n
[4704.8]
Refer to [1020.7]
PROFIdrive sampling time
NOTE: SINAMICS S110 supports only one encoder. This encoder may be parameterized as encoder 1 or encoder 2.
"Fast inputs"
From the
digital
inputs/
outputs
p0490.10
p0490.9
DI10_probe
(X132.3)
[2031.4]
DI9_probe
(X132.2)
[2030.4]
DI8_probe
(X132.1)
[2030.4]
1
0
1
1
0
1
1
0
1
p0490.11
DI11_probe
(X132.4)
[2031.4]
1
0
1
Measuring probe 2 input
0...7
p0489[n-1] (0)
Measuring probe 1 deflected
to Gn_ZSW9 [4730.2]
0
0
1
2
3
4
5
6
x=
Measuring probe 1 deflected
to Gn_ZSW8 [4730.2]
Measuring probe 1 input
0...7
p0488[n-1] (0)
7
0
1
2
3
7
0
1
2
3
4
5
6
7
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