Rockwell Automation 1760 Pico GFX-70 Controllers Quick Start - Manual (Page 25)

Publication 1760-QS002A-EN-P - April 2004
Lesson 3 4-3
A rundown time of 4s after the switch off time is required to allow all
packages to completely come off the conveyor belt. This delay is
provided by T2 which activates the switch off as an on-delayed timing
relay. For this we shall modify the circuit diagram as follows:
The output of C1 triggers T2 which then controls M1 in rung 3 instead
of C1.
Input Simulation You can test the circuit diagram easily by adapting the function of the
input switches to the requirements of the task definition. I1 and I3
should be actuated by momentary make contacts, I2 by a momentary
break contact.
The function of the individual input simulators can be set in the
Simulation View. To do this switch to Simulation View and click the
I/R Function button.
This will open the I/R Function dialog in which you can carry out
the necessary operations for our exercise.