Safe Limited Speed - OEM Automatic AB

Chapter 2
About the MSR57P Speed Monitoring Safety Relay
Hardware Features
The MSR57P relay features five dual-channel inputs, three sets of
sourcing safety outputs, and one bipolar safety output. You can
configure dual-channel inputs to accept contact devices with two
normally closed contacts, or one normally closed and one normally
open contact. They can also be configured for single channel
operation.
IMPORTANT
Single-channel operation does not meet SIL CL3, PL(e), Cat 4
safety integrity.
These inputs also support output signal switching devices (OSSD).
Each output has integral pulse-test checking circuitry. Two RJ-45
connectors support encoder inputs. The MSR57P relay features status
indicators and status data for troubleshooting.
26 Publication 440R-UM004A-EN-P - December 2008