Siemens SINAMICS S120 Equipment Manual page 69

Digital inputs X530
Table 3-14 Screw terminal X530
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; M2: Ground reference
Note
An open input is interpreted as "low".
To enable the digital inputs to work, terminal M2 must be connected. This can be done as
follows:
1) The ground reference of the digital inputs, or
2) A jumper to terminal M (Notice! This removes isolation for these digital inputs).
Equipment Manual for Control Units and Additional System Components
Equipment Manual, (GH1), 04.2004 Edition, 6SL3097-2AH00-0BP0
Name
1)
DI 4
DI 5
DI 6
DI 7
M2
M (GND)
Additional System Components
3.3 Terminal Module 31 (TM31)
Technical specifications
Voltage: -3 V to 30 V
Typical current consumption: 10 mA at 24 V DC
Isolation: The reference potential is terminal M2
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
3-19