User's Manual
Table Of Contents
- Table of Contents
- Preface
- Product Overview
- Safety Concept
- Installation
- Wiring and System Integration
- Commission the Safety Switch
- Device Status and Troubleshooting
- Application Examples
- Specifications
- Index
36 Rockwell Automation Publication 440G-UM004C-EN-P - August 2020
Chapter 7 Application Examples
Starting
With the Unlock switch open, close the gate. Press Reset to lock the gate and
turn on the K1…K4 safety contactors.
Stopping
Stopping is initiated by pressing the E-stop. K1 and K2 contactors turn off
immediately. The single wire safety signal from the DI safety relay (L11) to the
EMD safety relay (L12) also turns off immediately, and the EMD starts the off-
delay timer. After 8 seconds, X32 goes to 24V. The unlock switch is enabled, and
the gate can be unlocked. While the gate is unlocked, the DI safety relay cannot
turn the safety outputs back ON. After you leave the cell and close the gate,
open the unlock switch to lock the gate, and release the E-stop.
The circuit can meet the safety requirements up to Category 4, Performance
Level e in accordance with ISO 13849-1 and SIL CL 3 in accordance with
IEC62061.