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
Rockwell Automation Publication 440G-UM004C-EN-P - August 2020 39
Chapter 7 Application Examples
The safety switch OSSD outputs drive the Safe Torque Off (STO) signals of the
PowerFlex 525 drive. The STO is enabled after the gate is locked and the Reset
is pressed. The PowerFlex 525 drive STO inputs can tolerate the pulse test that
is generated by the CR30 outputs.
The Lock_Ctrl_1 block controls the unlock command to the safety switch. The
unlock Stop Time delay is set to 5 seconds, and the ULR Latch (Unlock Request)
is set to ON. When an unlock request is made, the command is issued 5
seconds after the motor stops running, and the unlock request is latched ON.
Figure 17 - CR30 Configuration in CCW