Specific functions of Discrete modules: programmable input filtering

At a Glance

The TSX DEY 16FK, TSX DMY 28FK and TSX DMY 28RFK modules are equipped with a filtering system which is configurable per channel and allows the input filtering time to be modified.

Description

The inputs of modules TSX DEY 16FK, TSX DMY 28FK and TSX DMY 28RFK are filtered by:

a fixed analog filter ensuring a maximum immunity of 0.1 ms for line interference filtering:
a digital filter which can be configured in steps of 0.5 ms. The terminal can be used to adjust this filtering in configuration mode.

NOTE: for bounces not to be taken into account upon closure of the mechanical contacts, it is recommended to use a filtering time > 3 ms.

NOTE: in order to be IEC 1131-2 compliant, the filtering time must be set to a value ≥ 3.5 ms.