X521 Bidirectional Digital Inputs/Outputs; X522 Bidirectional Digital Inputs/Outputs - Siemens SINAMICS Equipment Manual

Terminal Modules
5.1 Terminal Module TM15
5.1.2.4

X521 bidirectional digital inputs/outputs

Table 5-4
Type: Screw terminal 1
L2+: The 24 V DC infeed for DI/DO 8 to 15 (second potential group) must always be connected if at
1)
least one DI/DO of the potential group is used as an output.
M2: The 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 an input or output.
DI/DO: Bidirectional digital input/output
5.1.2.5

X522 bidirectional digital inputs/outputs

Table 5-5
Type: Screw terminal 1
L3+: The 24 V DC infeed for DI/DO 16 to 23 (third potential group) must always be connected if at least
1)
one DI/DO of the potential group is used as an output.
M3: The 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 an input or output.
DI/DO: Bidirectional digital input/output
58
X521 digital inputs/outputs
Terminal
1
1
2
3
4
5
6
7
8
9
10
10
X522 digital inputs/outputs
Terminal
1
1
2
3
4
5
6
7
8
9
10
10
Designation Technical data
1)
L2+ See Chapter "Technical data".
DI/DO 8
DI/DO 9
DI/DO 10
DI/DO 11
DI/DO 12
DI/DO 13
DI/DO 14
DI/DO 15
M2 (GND)
Designation Technical data
1)
L3+ See Chapter "Technical data".
DI/DO 16
DI/DO 17
DI/DO 18
DI/DO 19
DI/DO 20
DI/DO 21
DI/DO 22
DI/DO 23
M3 (GND)
Supplementary component descriptions
Manual, 06/2019