General Specification

The 8-channel digital input terminals (positive switching) acquire the binary control signals from the process level and transmit them, in an electrically isolated form, to the higher-level automation unit. The Bus Terminals contain eight channels which indicate their signal state by means of light emitting diodes. They are particularly suitable for space-saving use in control cabinets. By using the single-ended connection technique, a multi-channel sensorA sensor is a type of transducer that converts one type of energy into another for various purposes including measurement or information transfer can be connected in the smallest space with a minimum amount of wiring. The power contacts are looped through.

For the Bus Terminals, the reference ground for all inputs is the 0 V power contact.

Electrical and Mechanical Specification

Electrical and Mechanical Specification	AKD-DN-008-000	AKT-DNH-008-000
Number of inputs	8
Nominal voltage	24 V DC (-15 % /+ 20 %)
"0" signal voltage	-3 V ... +5 V ( IEC"International Electrotechnical Commission" IEC is a not-for-profit, non-governmental international standards organization that prepares and publishes International Standards for all electrical, electronic and related technologies 61131-2, type 1/3)
"1" signal voltage	15 V ... 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 Vrmsrms stands for root mean square (also known as the quadratic mean) (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