8.10.4 Technical data
Digital inputs on X122/X132
Table 8-23 Technical data of digital inputs X122/X132
Parameters Values
Voltage -3 VDC to +30 VDC
Typical current consumption 2.5 mA at 24 VDC
Galvanic isolation Reference potential is terminal M1 or M2
Signal level (including ripple) High signal level: 15 V to 30 V
Low level: -3 V to 5 V
Input delay (typ.) L → H: 50 μs
H → L: 150 μs
Digital inputs/outputs at X122 / X132 / X142
Table 8-24 Technical data of the digital inputs/outputs of X122 / X132 / X142
Parameters Values
As an input
Voltage -3 VDC to +30 VDC
Typical current consumption 2.5 mA at 24 VDC
Signal level (including ripple) High signal level: 15 V to 30 V
Low level: -3 V to 5 V
Input delay (typ.) of inputs / "rapid inputs" L → H: 10 μs / 5 μs
H → L: 30 μs / 5 μs
As an output
Voltage 24 VDC
Maximum load current per output 500 mA continuously short-circuit proof
Output delay (typ./max.)
1)
L → H: 100 μs
H → L: 150 μs
Switching frequency for resistive load: max. 100 Hz
for inductive load: max. 2 Hz
for lamp load: max. 11 Hz
max. lamp load 5 W
1)
Data for: V
cc
= 24 V; load 48 Ω; High = 90% V
out
; Low = 10% V
out
Connecting
8.10 Digital inputs/outputs
NCU 1740
86 Equipment Manual, 10/2021, A5E51087503B AA
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