16-channel digital input 24 V DC, 0 V (ground) switching EJ1889

EJ1889 | 16-channel digital input 24 V DC, 0 V (ground) switching

The EJ1889 digital input acquires the binary control signals from the process level and transmits them, in an electrically isolated form, to the higher-level automation device. The EJ1889 contains 16 channels, whose signal states are displayed by LEDs. The digital inputs have a 3 ms input filter. The EJ1889 takes the 24 V power contact as its reference for all inputs.

Technical data EJ1889
Specification negative switching “0”: 18…30 V DC, “1”: 0…7 V DC, typ. 3 mA input current
Number of inputs 16
Nominal voltage 24 V DC (-15 %/+20 %)
“0“ signal voltage 18…30 V
“1“ signal voltage 0…7 V
Input current typ. 3 mA
Input filter typ. 3.0 ms
Distributed clocks
Current consumption E-bus typ. 80 mA
Electrical isolation 500 V (E-bus/field potential)
Bit width in the process image 16 inputs
Special features negative switching
Operating/storage temperature 0…+55 °C/-25…+85 °C
Relative humidity 95 %, no condensation
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Dimensions (W x H x D) approx. 12 mm x 66 mm x 55 mm
Protection class IP 20
Approvals CE