Digital I/Os (parameterizable)
Table 5-11
Digital I/Os of the SIMOTION D4x5   
Data SIMOTION D425 SIMOTION D435 SIMOTION D445/
D445‑1
Digital inputs/outputs 8
Max. 6 as high-speed 
inputs of measuring 
inputs, max. 8 as high-
speed 
outputs of output 
cams/DO
8
Max. 6 as high-speed 
inputs of measuring 
inputs, max. 8 as high-
speed outputs of output 
cams/DO
8
Max. 6 as high-speed 
inputs of measuring 
inputs, max. 8 as high-
speed outputs of output 
cams/DO
If used as an input:
● Input 
voltage, rated 
value
24 V DC 24 V DC 24 V DC
● Input voltage, for 
signal "1"
15 ... 30 V 15 ... 30 V 15 ... 30 V
● Input voltage, for 
signal "0" 
2)
-3 ... +5 V -3 ... +5 V -3 ... +5 V
Galvanic isolation  no no no
Current consumption 
typ. at signal level "1"
10 mA at 24 V 10 mA at 24 V 10 mA at 24 V
Input delay, typ. 
(hardware)
L -> H: 5 µs 
H -> L: 50 µs
L -> H: 5 µs 
H -> L: 50 µs
L -> H: 5 µs 
H -> L: 50 µs
Measuring input input,
reproducibility
5 µs 5 µs 5 µs
If used as an output
● Rated 
load voltage, 
permissible range
24 V DC, 20.4 to 28.8 V 24 V DC, 20.4 to 28.8 V 24 V DC, 20.4 to 28.8 V 
● Galvanic isolation no no No
● Current load, max. 500 mA per output 500 mA per output 500 mA per output
● Residual current, 
max.
2 mA 2 mA 2 mA
● Output delay, typ./
max. (hardware) 
1)
L -> H: 150 µs / 400 µs
H -> L: 75 µs / 100 µs
L -> H: 150 µs / 400 µs
H -> L: 75 µs / 100 µs
L -> H: 150 µs / 400 µs
H -> L: 75 µs / 100 µs
● Output 
cam output, 
reproducibility
125 µs 125 µs 125 µs
Switching frequency of the outputs, max.
● With resistive load 100 Hz 100 Hz 100 Hz
● With inductive load 2 Hz 2 Hz 2 Hz
● With lamp load 11 Hz 11 Hz 11 Hz
Short-circuit protection yes yes yes
1)
Data for: Vcc = 24 V, load 48 Ohm, H = 90% V
Out
; L = 10% V
Out 
2) 
The digital inputs are protected against polarity reversal up to -30 V
Technical data
5.1 Technical data D4x5
SIMOTION D4x5
Manual, 04/2014 71