Rockwell Automation Publication 440C-WD001C-EN-P - June 2015 9
Chapter 1
Cat 1 Stop with Guardlocking Interlock
(TLS-ZR or 440G-LZ)
This example application shows how to configure the CR30 safety relay for a
Guardlocking application that requires a Stop Category 1 function.
A TLS-ZR guardlocking interlock, which has Output Signal Switching Device
(OS
SD) outputs, locks a guard to help prevent full body access to the hazard. A
PowerFlex® 525 is controlling a motor that is considered the hazard. A selector
switch requests access to the hazard area. A push button locks access to the
hazard. The CR30 safety relay performs the logic that monitors the interlock and
the drive, and allows access to the hazard under safe conditions.
For partial body access, the 440G-LZ can be substituted for the TLS-ZR.
Product Overview
Figure 1 - Overview
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