Siemens SINAMICS S110 - X130 Fail-Safe Digital Inputs

CU305 Control Units
7.3 Interface description
SINAMICS S110
Manual, 07/2015, 6SL3097-4AC10-0BP5
147
Note
An additional external electronics power supply via terminal X124 is required in two cases:
•
if digital outputs are used DO 8 to DO 11
•
If the CU305 is to remain functional after the Power Module has been switched off
7.3.5.6
X130 fail-safe digital inputs
Table 7- 17 X130 fail-safe digital inputs
Terminal
Designation
1)
Technical data
1 DI 16 F-DI 0 Voltage: -3 … 30 V DC
Input characteristics in accordance with
IEC61131-2, type 1
Typical current consumption: 6 mA at 24 V DC
Electrical isolation: The reference potential is
terminal M1
Permissible level (incl. ripple)
High level: 15 … 30 V
Low level: -3 … 5 V
2
DI 17+
3
DI 17-
4
DI 18
F-DI 1
5
DI 19+
6 DI 19-
7 24 V1 Additional external power supply for intercon-
necting DI 16 / DI 18 with ground M1
See also Connection example, CU305 with
safety function (Page 154)
8 M1 Reference potential for the fail-safe digital
inputs/outputs
Type: Spring-loaded terminal (Page 263)
Max. cross section that can be connected: 1.5 mm
2
1)
DI: Digital input, F-DI: Fail-safe digital input
The maximum cable length that can be connected is 30 m.
Fail-safe digital inputs
An F-DI consists of two digital inputs. The cathode of the optocoupler is additionally
connected to one of these.
Note
An open inp
ut is interpreted as "low."
Note
If M1 is connected to M (X124 or X132), the system is no longer electrically isolated.