Rockwell Automation MSR127RTP User Manual

MSR127RP/TP
Description
The MSR127RTP can be connected in three different input wiring configurations: one normally closed, two normally closed, or with
two PNP connections from a light curtain. When connected in the two normally closed fashion, the MSR127RTP checks for cross faults
across the two inputs. When connected to light curtains, the light curtain must perform the cross fault detection.
The MSR127RP has a monitored manual reset. The MSR127TP has an automatic/manual reset. Models with automatic/manual reset
can have the reset jumpered or can be converted to an unmonitored manual reset by adding a normally open switch in the monitoring
loop. Models with monitored manual reset provide checking of the output monitoring circuit.
The outputs include three normally open safety-rated outputs as well as one normally closed auxiliary output. The safety outputs have
independent and redundant internal contacts to support the safety function. The auxiliary output is a nonsafety output intended to
provide an external signal about the status of the safety outputs.
Features
Category 4 per EN 954-1
Stop category 0
Three safety contacts
One auxiliary contact
Cross fault monitoring
Monitored or automatic reset
Removable terminals
Light curtain, E-stop or safety gate applications
LED Indicators
Green Power On
Green CH1 Closed
Green CH2 Closed
Specifications

Rockwell Automation MSR127RTP Specifications

General

Type	Safety Relay
Coil Voltage	24V DC
Current Rating	6 A
Mounting Type	DIN Rail
Series	MSR127
Reset Type	Automatic/Manual
Standards	EN ISO 13849-1
Dimensions	22.5 mm x 114.5 mm x 99 mm
Safety Contacts	3 NO

Summary

Product Description and Features

Description

Explains the MSR127RTP's connectivity options and output capabilities, including safety and auxiliary outputs.

Features

Lists key features such as safety category, stop category, contact types, and application suitability.

LED Indicators

Details the status indicators for Power On, CH1 Closed, and CH2 Closed for monitoring the device.

Technical Specifications

Safety Ratings and Certifications

Covers safety standards (EN 954-1, ISO 13849-1), safety classification (Cat. 4, SIL CL3), and certifications (CE, cULus).

Power Supply and Inputs

Specifies power requirements (24V AC/DC, 115V AC, 230V AC) and input characteristics for safety circuits.

Outputs and Contacts

Details the types and quantities of safety contacts (3 N.O.) and auxiliary contacts (1 N.C.).

Electrical and Mechanical Life

Provides data on electrical endurance (operations) and mechanical endurance for the device.

Environmental and Physical Characteristics

Includes enclosure ratings (IP40/IP20), operating temperature, vibration, shock, mounting, and weight.

Product Selection and Diagrams

Product Selection Table

Lists available product configurations, reset types, power supplies, and corresponding catalog numbers.

Approximate Dimensions

Shows the physical dimensions of the MSR127RP/TP unit in millimeters and inches.

Block Diagram

Illustrates the internal terminal connections and logic for the safety relay.

Typical Wiring Diagrams

Provides example wiring configurations for light curtains, E-stops, and safety gates with different reset types.