X520: Digital Inputs; Table 3-13 Screw Terminal X520 - Siemens SINAMICS S120 Equipment Manual

Additional System Components
3.3 Terminal Module 31 (TM31)
3.3.3.5

X520: Digital inputs

Table 3-13 Screw terminal X520
Terminal
1
2
3
4
5
6
Max. connectable cross-section: 1.5 mm²
Type: Screw terminal 1 (see Appendix A)
1) DI: digital input; M: electronic ground M1: ground reference
Note
To enable the digital inputs to function, terminal M1 must be connected. This can be done as
follows:
1) Connect the reference mass of the digital inputs, or
2) a jumper to terminal M (Notice: this removes isolation for these digital inputs).
3-18
Name
1)
DI 0
DI 1
DI 2
DI 3
M1
M
Technical specifications
Voltage: - 3 V to 30 V
Typical current consumption: 10 mA at 24 V DC
Isolation: The reference potential
is terminal M1
Signal propagation times:
L → H approx. 50 μs
H → L: approx. 100 µs
Level (incl. ripple)
High level: 15 V to 30 V
Low level: -3 V to 5 V
Equipment Manual Control Units and Additional System Components
Equipment Manual, (GH1), 12/2004 Edition, 6SL3097-2AH00-0BP1