Siemens SINAMICS S120 Manual page 203

Table 6-24 Specification of measuring systems that can be connected
Parameter
High signal level
(TTL bipolar at X23)
1)
Low signal level
(TTL bipolar at X23)
1)
High signal level
(HTL unipolar)
Low signal level
(HTL unipolar)
High signal level
(HTL bipolar)
2)
Low signal level
(HTL bipolar)
2)
High signal level
(SSI bipolar at X23)
1)3)
Low signal level
(SSI bipolar at X23)
1)3)
Signal frequency
Edge clearance
Zero pulse (with T = 1/f )
s s
Other signal levels according to the RS422 standard.
1)
The absolute level of the individual signals varies between 0 V and V
2)
system.
Only from Order No. 6SL3040-0LA01-0AA1 and Firmware 2.5 SP1.
3)
Note
We recommend that bipolar encoders are used.
When using uni-polar encoders, the 15-pin sub D connector should be opened and
jumpered.
The signals that are not used should be connected to ground.
AC Drive
Manual, (GH6), 07/2007 Edition, 6SL3097-2AL00-0BP2
Designation Threshold
U
Hdiff
U
Ldiff
U High
H
Low
U High
L
Low
U
Hdiff
U
Ldiff
U
Hdiff
U
Ldiff
f
S
t
min
Length
Center of the
pulse position
6.3 Control Unit CU310 PN (PROFINET)
Min. Type
2
-5
17
10
0
0
3
-V
CC
2
-5
-
100
¼ · T
s
50 135
Control Units
Max. Unit
5 V
-2 V
V V
CC
V V
CC
7 V
2 V
V V
CC
-3 V
5 V
-2 V
500 kHz
- ns
¾ · T
s
220 Degrees
of the measuring
CC
203