Safety Relay User Manual Owner's manual

58 Rockwell Automation Publication 440C-UM001C-EN-P - November 2014

Chapter 9 Safety Monitoring Functions

Figure 53 - Example Schematic for 4-Sensor Muting

For simplicity, the power and ground connections of the light curtain and muting

sensors are not shown. The light curtain and muting sensors must have the same

reference (24V Com) as the CR30 for proper operation.

For proper operation, the muting sensors are on (normally closed) when not

muting, and the light curtain OSSD outputs are also on (the light curtain is

clear).

Figure 54 - Muting Time for 4-Sensor Muting

+24V DC

Light Curtain

24V Com

MS1

MS2

OSSD A

OSSD B

MS3

MS4

Override

Contactors

for Conveyor Power

Muting Lamp

CR30

020100 03 04

A1 15 20 2116

18A2

08 10 11

12 13 14

Muting sensor 1 (4)

Muting sensor 2 (3)

Muting sensor 3 (2)

Muting sensor 4 (1)

Muting lamp

t > 30ms

t > 50ms

30ms <= t

t < synchronization

time

30ms <= t

t < synchronization

time

t < muting time

muted