These positive-switching 8-Channel Digital Input terminals acquire binary control signals from the process level and transmit them to the higher-level automation system. The eight channels indicate their signal state by means of LEDs. Using single-ended connections, these units are particularly useful for saving space in control cabinets. Power contacts are looped through, and the reference ground is the 0 V power contact.
Specifications
Electrical and Mechanical Specification : AKT-DN-008-000 ;AKT-DNH-008-000
Number of inputs : 8
Nominal voltage : 24 V DC (-15 % /+ 20 %)
"0" signal voltage : -3 ... +5 V ( IEC 61131-2, type 1/3)
"1" signal voltage : 11 ... 30 V ( IEC 61131-2, type 3)
"0" signal current : 0...1.5 mA
"1" signal current : 2.0...2.5 mA
Input filter : 3.0 ms : 0.2 ms
Current consump. from Standard-bus : typ. 5 mA
Electrical isolation : 500 Vrms (Standard-bus / field potential)
Bit width in the process image : 8 inputs
Configuration : no address or configuration settings
Weight approx. : 55 g
Operating/storage temperature : 0 C ... +55 °C /-25 °C... +85 °C
Relative humidity : 95 %, no condensation
Vibration / shock resistance : conforms to EN 60068-2-6 / EN 60068-2-27/ 29
EMC immunity/emission : conforms to EN 61000-6-2 / EN 61000-6-4
Protect. class / installation pos. : IP 20 / variable