Safety Relay User Manual Owner's manual

Rockwell Automation Publication 440C-UM001C-EN-P - November 2014 51
Safety Monitoring Functions Chapter 9
Light Curtain
The Light Curtain function block sets the parameters for light curtains that have
dual OSSD outputs. In the CCW, click and drag (or double-click) the block to
an available Safety Monitoring Function spot. This block can be used for other
devices, like laser scanners, with OSSD outputs.
Figure 43 - Light Curtain Function Block
The available input selections for the Light Curtain inputs are:
• EI_00…EI_11 (embedded input terminals 00…11)
• MP_12…MP_17 (multi-purpose terminals 12…17)
You can use the default Discrepancy Time and Input Filter or choose to modify
these settings.
Figure 44 - Example Schematic of a Light Curtain
+24V DC
24V Com
05
CR30
020100 03 04
A1 15 20 2116
06
18A2
07
19
08 10 11
12 13 14
09
17
OSSD1
Receiver
++
--
Transmitter
OSSD2