Overview
The TM5SDI4A is a Schneider Modicon TM5 discrete input module, order code TM5SDI4A, providing 4 digital inputs rated for 100-240 V AC. The module is rated IP20 for in-cabinet use and carries CE, UL, and CSA marks.
Each of the four inputs accepts 100-240 V AC line signals — typical for sensing limit switches, pushbuttons, or proximity sensors on AC control circuits. The hardware input filter from state 0 to state 1 is fixed at 40 ms, with a configurable software filter down to 25 ms; the hardware filter from state 1 to state 0 is 30 ms. This filtering rejects contact bounce and electrical noise common in industrial environments. Isolation between channel and bus is rated at 2500 V AC for 1 minute; there is no isolation between individual channels. The module meets EMC immunity levels including 4 kV contact ESD per EN/IEC 61000-4-2, 10 V/m radiated field immunity from 80-2000 MHz, and 2 kV fast transient on power lines. Standards compliance includes UL 508, CSA C22.2 No 142, and IEC 61131-2.
Applications
The TM5SDI4A is designed for Modicon M258 logic controllers, LMC058 motion controllers, and PacDrive LMC motion controllers. Typical applications include packaging lines, material handling, and machine tools where AC-powered sensors or control signals must be brought into a PLC backplane. The 4-input density suits smaller I/O banks or mixed-voltage panels where a few AC inputs are needed alongside DC modules.