Siemens SINAMICS S120 Manual page 301

Note
Ensuring the function of digital inputs
An open input is interpreted as "low".
Terminal M1 must be connected so that the digital inputs (DI) can function.
This is achieved through one of the following measures:
1. Also route the reference ground of the digital inputs.
2. A jumper to terminal M (Please observe: This removes the electrical isolation for these
digital inputs.)
X530: 4 digital inputs
Table 9- 8
DI: digital input; M2: ground reference; M: Electronics ground
1)
Max. connectable cross-section: 1.5 mm²
Note
Ensuring the function of digital inputs
An open input is interpreted as "low".
To enable the digital inputs (DI) to function, terminal M2 must be connected.
This is achieved through one of the following measures:
1. Also route the reference ground of the digital inputs.
2. A jumper to terminal M (Please observe: This removes the electrical isolation for these
digital inputs.)
Cabinet Modules liquid cooled
Manual, 10/2015, A5E37067587A
Terminal block X530
Terminal Designation
1 DI 4
2 DI 5
3 DI 6
4 DI 7
5 M2
6 M
9.6 G60, Terminal Module TM31
Technical data
1)
Voltage: - 3 ... +30 V
Current consumption Typical: 10 mA at 24 V DC
Input delay:
For "0" to "1": Typ. 50 µs max. 100 µs
For "1" to "0": Typ. 130 µs, max. 150 µs
Electrical isolation:
Reference potential is terminal M2
Signal level (including ripple)
High level: 15 ... 30 V
Low signal level: -3 ... +5 V
Options
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