3
F
unction
d
iag
ram
s
3.1
7
En
co
de
r ev
alu
at
ion
SINAMICS G120
C
U
250S-2 C
ontrol Units
88
6
List Manua
l, 09/2
017
, A5E3384289
0
F
ig.
3
-133
47
50 – Absolu
te
val
ue fo
r
in
cremental en
coder
- 4750 -
Function diagram
8
7
6
5
4
3
2
1
fp_4750_97_03.vsd
Encoder evaluation
G120 CU250S-2
05.09.2017
V4.7.9
Absolute value for incremental encoder
Zero mark
r4654.0
POWER ON
Gn_XIST1
Gn_XIST2
XIST1_ERW
XIST1_ERW
r4654.8
1
<2>
<1>
Reset input
Reset output
Reset output
Basic
functions
or
p4652 = 1
Supporting absolute position at incremental
encoder
Encoder 1 XIST1_ERW moved back
Encoder 2 XIST1_ERW moved back
Reset output
Reset with Reset input
Only applies for p0437.13 = 1.
Bit 13: Request absolute value.
Basic function
Extended
function
XIST1_ERW res mode
0 ... 3
p4652 (0)
(0)
XIST1_ERW resS_src
p4655
Enc Gn_STW S_src
(0)
p0480
r0483
Enc Gn_XIST2
r0482
Enc Gn_XIST1
r0481
Enc Gn_ZSW
r4653
XIST1_ERW actval
p0481.13
p4652 = 2
p4652 = 3
<1>
<2>
p0437.13