Siemens sinamics dcp - Page 80

Electrical connection
5.6 Additional system components
SINAMICS DCP
78 Operating Instructions, 09/2019, A5E34382853K
X521 bidirectional digital inputs/outputs
Table 5- 16 Screw terminal X521
Connector
Terminal
Designation
1)
Technical specifications
1
L2+
See Section
"Technical specifications"
2
DI/DO 8
3
DI/DO 9
4 DI/DO 10
5
DI/DO 11
6
DI/DO 12
7
DI/DO 13
8
DI/DO 14
9
DI/DO 15
10 M2 (GND)
1)
L2+: A 24 V DC power supply for DI/DO 8 to 15 (second potential group) must always be connect-
ed if at least one DI/DO of the potential group is used as output.
M2: A ground reference for DI/DO 8 to 15 (second potential group) must always be connected if at
least one DI/DO of the potential group is used as either input or output.
DI/DO: Bidirectional digital input/output
X522 bidirectional digital inputs/outputs
Table 5- 17 Screw terminal X522
Connector
Terminal
Designation
1)
Technical specifications
1
L3+
See Section
"Technical specifications"
2
DI/DO 16
3
DI/DO 17
4
DI/DO 18
5
DI/DO 19
6
DI/DO 20
7
DI/DO 21
8
DI/DO 22
9
DI/DO 23
10 M3 (GND)
1)
L3+: A 24 V DC power supply for DI/DO 16 to 23 (third potential group) must always be connected
if at least one DI/DO of the potential group is used as output.
M3: A ground reference for DI/DO 16 to 23 (third potential group) must always be connected if at
least one DI/DO of the potential group is used as either input or output.
DI/DO: Bidirectional digital input/output