X522 Isolated Digital Inputs - Siemens SINAMICS S120 Manual

Terminal Modules
6.5 Terminal Module TM41
Note
This power supply is only for supplying the digital inputs.
Note
An open input is interpreted as "low".
Note
If the 24 V supply is briefly interrupted, then the digital outputs are deactivated during this time.
6.5.2.5

X522 isolated digital inputs

Table 6-27
Type: Screw terminal 1 (Page 321)
DI: Digital input; M: Electronics ground; M1: reference potential
1)
Note
Ensuring the function of digital inputs
Terminal M1 must be connected so that the digital inputs (DI) can function.
This is achieved by using one of the following measures:
1. Providing the ground reference of the digital inputs
2. A jumper to terminal M
Note: This removes isolation for these digital inputs.
150
X522: Digital inputs
Terminal Designation
1 DI 0
2 DI 1
3 DI 2
4 DI 3
5 M1
6 M
1) Technical data
Voltage: -3 ... +30 V DC
Electrical isolation: Yes
Reference potential: M1
Input characteristic acc. to IEC 61131-2, type 1
Input voltage (including ripple)
"1" signal: 15 ... 30 V
"0" signal: -3 ... +5 V
Input current
at 24 V DC: typ. 9 mA
at <0.5 mA: Signal "0" reliably detected
Input delay
for "0" → "1": typ. 50 µs/max. 100 µs
for "1" → "0": typ. 130 µs/max. 150 µs
Control Units and additional system components
Equipment Manual, 06/2020, 6SL3097-5AH00-0BP2