X21 Digital Inputs/Outputs - Siemens SINAMICS S120 Equipment Manual

DC link components
8.1 Braking Module
8.1.3.6

X21 digital inputs/outputs

Table 8- 2
Max. connectable cross-section 1.5 mm
DI: Digital input; DO: Digital output
1)
Note
Position of the terminals
The position of the individual terminals of terminal strip X21 on the Braking Module are as
follows when the module is installed: Terminal "1" is at the back, terminal "6" is at the front.
Note
Signal characteristics of terminal X21.3
Applying a high signal to terminal X21.3 inhibits the Braking Module. On a falling edge,
pending error signals are acknowledged.
Note
The Braking Module requires a DC link voltage so that the "No fault" message can be issued
correctly.
Note
Notes on setting
You will find setting instructions for wiring the signals in the SINAMICS S120 Function
Manual.
328
X21 terminal strip
Terminal Designation
1)
1 Shield
2 0 V
3 DI inhibit input
4 0 V
5 DO fault output
6 +24 V
Technical specifications
Shield connection for terminals 2 ... 6
High level: +15 ... 30 V
Current drawn: 2 ... 15 mA
Low level: -3 ... 5 V
High signal: No fault
Low signal: Fault present
Voltage: 24 VDC
Load current: 0.5 ... 0.6 A
Voltage: +18 ... 30 V
Typical current consumption (intrinsic current con-
sumption):
10 mA at 24 V DC
2
Air-cooled chassis power units
Manual, 07/2019, 6SL3097-4AE00-0BP9