Wago 750-421 WAGO I/O-SYSTEM 750 Digital Input Module
2-Channel Digital Input, Signal: DC 24 V, with Diagnostics, short-circuit-protected, isolated channels, Sensor connection: 2x (2-conductor, 3-conductor), Input characteristic: high-side switching, Input filter: 3 ms, Diagnostics: Short-circuit, automatic acknowledgement after error
The digital input module receives control signals from digital field devices and supplies sensors with power protected against short circuits.
The module transfers the control signals and other information via fieldbus coupler to a supervisory control.
Each input module has a noise-rejection filter.
Each sensor can be supplied separately.
A short circuit to ground is indicated as an error/fieldbus failure and a message is sent to the supervisory control.
The error is canceled automatically after it has been rectified.
Field and system levels are electrically isolated.