Overview, Intended use, Hardware features – Rockwell Automation 440C Guardmaster 440C-CR30 Configurable Safety Relay User Manual User Manual
Page 11: Chapter 1, Intended use hardware features
Rockwell Automation Publication 440C-UM001C-EN-P - November 2014
11
Chapter
1
Overview
Intended Use
The Cat. No. 440C-CR30-22BBB (CR30) relay is a software-configurable safety
relay. This device is intended to be part of the safety-related control system of a
machine. The CR30 must be configured using a personal computer (PC)
running the Allen-Bradley Connected Components Workbench™ (CCW). The
CR30 accommodates up to 24 safety monitoring functions. Examples of safety
monitoring functions are single channel input, dual channel input, two hand
control, reset, and feedback.
It is based on the Micro800 platform. The housing is red to signify it as a safety
device and to distinguish it from the grey-colored standard controllers.
Hardware Features
Figure 1 - CR30 Relay
The CR30 has 22 embedded safety rated inputs and outputs and accepts up to
two plug-in modules, each of which has four standard inputs and four standard
outputs.
The CR30 can be configured to accept two single-wire safety inputs and to
provide two single-wire safety outputs. This feature allows the CR30 to be an
integral part of an extensive machine safeguarding system.