Rockwell Automation 1771-IND series C INSTL INSTR AC/DC INPUT MODULE - Manual (Page 5)

Digital ac/dc (24V) Input Module 5
Publication 1771-IN052B-EN-P - April 2006
Set the Delay-time Jumper
Your module is equipped with an adjustable delay-time jumper. Use the jumper to select
between two input-channel delay times. The delay time you choose applies to all 16 of the
module’s channels.
The module is shipped with the delay-time jumper preset to 5 ms. To change the delay-time
jumper to 20 ms, do the following.
1. Locate the delay-time jumper-selection plug at the top-right edge of the module
circuit board.
2. Use your finger to slide the jumper off the 5 ms position (the middle post and the
right post).
3. Carefully position the jumper by sliding it onto the 20 ms position (the middle post
and the left post).
Use This Delay Time If You Want To
5 ms Detect typical input readings
20 ms Prevent detection of false inputs in high-noise environments
20 ms 5 ms
Top-right edge of circuit board
Delay-time Jumper (shown in
preset 5 ms position)