Annex 17
Manual ADQ-51 Rev. 1.0 Annex
4. Annex
4.1 Specifications
Isolated Digital inputs
Conditions: UEXT_DI = 24 V ±5%, T
A
= 25°C
Element
Condition
Specifications
Quantity
ADQ-51
1 x 8 bit digital input port
Type
Isolated digital inputs (unidirectional) with Schmitt trigger
characteristic according to IEC 61131-2 (type 1/3)
Isolation voltage
500 VAC according to EN60664-1 or UL1577
Overload protection
with too low Uext.
supply
Shutdown min. 8.0 V; Startup max. 9.6 V; Hysteresis typ. 1 V
with the Uext.
missing
Switch-on threshold min. 12.1 V; switch-off threshold
max. 13.9 V
Input level
UEXT = 24 V
L
¨
H: > 15 V; H
¨
L: < 11 V; Hysteresis: typ. 1 V
Input current
UEXT = 24 V
Min. 2.3 mA per channel
Input filter
(
programmable per port)
Filter off (bypass)
typ. 10 µs (N = 1)
Filter time 1
typ. 1 ms (N = 125)
Filter time 2
typ. 3.2 ms (N = 400)
Filter time 3
typ. 10 ms (N = 1248)
Scanning frequency
For filters
typ. 100 kHz
Operating parameters
Simple input
External supply
UEXT
16..35 VDC, typ. 24 VDC for control technology
Ground reference
GND (isolated from PC ground GND_PC)
