2021-11-08
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IDS NXT: Technical manual IDS NXT rome
Digital input wiring
Fig. 5: Digital input wiring
Pin 5 is the reference level (GND) for all inputs. All three inputs can also be used with different voltages.
7.4 Digital output wiring
Symbol
Minimum
Typical
Maximum
Unit
Recommended supply voltage
V
CC
-
-
30
V
Collector-emitter saturation voltage
V
CE(SAT)
0.03
-
0.15
V
Collector-emitter breakdown voltage
V
(BR)CE
100
-
-
V
Collector current continuous
I
C
-
-
150
mA
The digital outputs are galvanically isolated using optocouplers to protect the device and the PC against
surges. Only DC voltages may be applied to the digital outputs.
The output of the optocoupler can be used as an open collector or open emitter output. This means that the
output signal can be connected to ground or to the supply voltage. The output signal is active if the collector-
emitter switch is closed.
