Digital Inputs/Outputs - Siemens SINAMICS S120 Installation And Start-Up Manual

Basic Information about the Drive System
Inputs/outputs
7.8.2

Digital inputs/outputs

Digital inputs
+
Fig. 7-10
Properties
S The digital inputs are "high-active".
S An open input is interpreted as "low".
S Fixed debouncing setting
Delay time = 1 to 2 current controller cycles (p0115[0])
S Availability of the input signal for further interconnection
– inverted and not inverted as a binector output
– as a connector output
S Simulation mode settable and parameterizable.
S CU 320: Isolation block by block, set by jumper.
– Jumper open
The digital inputs function only if a reference ground is connected.
– Jumper closed
The reference potential of the digital inputs is the ground of the Control Unit.
S Sampling time for digital inputs/outputs adjustable on CU320 (p0799)
7-256
M
X124.3
M
X124.4
X124.1
+24 V
24 V
X122.1 DI 0
5 V
M1
X122.5
M
X122.6
Digital inputs: signal processing using DI 0 of CU320 as an example
SINAMICS S120 Installation and Start-Up Manual, 12/04 Edition
p0721.0
1
0
1
p0727.0
floating
non-floating
E Siemens AG, 2004. All rights reserved
r0723.0
r0722.0
digital_in.vsd