Siemens SINAMICS G150 Operating Instructions Manual page 157

Table 4- 52 Specification of measuring systems that can be connected
Parameters
High signal level
(TTL bipolar at X520 or X521/X531)
Low signal level
(TTL bipolar to X520 or X521/X531)
High signal level
(HTL unipolar)
Low signal level
(HTL unipolar)
High signal level
(HTL bipolar)
2)
Low signal level
(HTL bipolar)
2)
Signal frequency
Edge spacing
Zero pulse inactive time
(before and after A=B=high)
Zero pulse active time
(while A=B=high and beyond)
Other signal levels according to the RS 422 standard.
1)
The absolute level of the individual signals varies between 0 V and V
2)
t is not a specified value, but is the time between the falling edge of track A and the next but one rising edge of
3)
ALo-BHi
track B.
The threshold can be set via p0405.04 (switching threshold); the setting on delivery is "Low."
4)
Figure 4-37
Converter cabinet units
Operating Instructions, 07/2016, A5E03347396A
Designation
U
Hdiff
1)
U
Ldiff
1)
U
4)
H
U
L 4)
U
Hdiff
U
Ldiff
f
S
t
min
t
Lo
t
Hi
Signal characteristic of the A and B track between two edges: time between two edges
with pulse encoders
Threshold Min.
4)
2
-5
High 17
Low 10
High 0
Low 0
3
-V
CC
-
100
640
640
of the measuring system.
CC
Electrical installation
4.10 Other connections
Max. Unit
5 V
-2 V
V V
CC
V V
CC
7 V
2 V
V V
CC
-3 V
300 kHz
- ns
(t - t )/2 ns
3)
ALo-BHi Hi
t - 2 x t ns
3)
ALo-BHi Lo
157