Siemens SINAMICS Series Operating Instructions Manual page 244

Additional system components
7.5 Terminal Module TM31
7.5.3.4 X520, X530 digital inputs
Table 7- 34
Connector
Table 7- 35
Connector
DI: Digital input; M: Electronics ground; M1, M2: Ground reference
1)
Note
Ensuring the function of digital inputs
An open input is interpreted as "low".
Terminal M1 or M2 must be connected in order that digital inputs (DI) can function.
This is achieved through one of the following measures:
1. Provide the ground reference of the digital inputs
2. A jumper to terminal M
Note:: This removes isolation for these digital inputs.
242
Screw terminal X520
Terminal Designation
1 DI 0
2 DI 1
3 DI 2
4 DI 3
5 M1
6 M
Screw terminal X530
Terminal Designation
1 DI 4
2 DI 5
3 DI 6
4 DI 7
5 M2
6 M
Technical specifications
1)
Voltage: -3 V to +30 V
Electrical isolation: Yes
Reference potential: M1
Input characteristic acc. to IEC 61131-2,
type 1
Input voltage (including ripple)
"1" signal: 15 V to 30 V
"0" signal: -3 to +5 V
Input current
At 24 V DC: typ. 9 mA
For "1" signal: > 0.5 mA
Input delay:
For "0" → "1": typ. 50 µs/max. 100 µs
For "1" → "0": typ. 130 µs, max. 150 µs
Technical specifications
1)
Voltage: -3 V to +30 V
Electrical isolation: Yes
Reference potential: M2
Input characteristic acc. to IEC 61131-2,
type 1
Input voltage (including ripple)
"1" signal: 15 V to 30 V
"0" signal: -3 to +5 V
Input current
At 24 V DC: typ. 9 mA
For "1" signal: > 0.5 mA
Input delay:
For "0" → "1": typ. 50 µs/max. 100 µs
For "1" → "0": typ. 130 µs, max. 150 µs
Operating Instructions, 12/2018, A5E34763375A
SINAMICS DCM DC Converter