Light curtain – Rockwell Automation 1791DS-IBxxxx Guard I/O DeviceNet Safety Modules User Manual
Page 51
![background image](/manuals/579642/51/background.png)
Rockwell Automation Publication 1791DS-UM001J-EN-P - May 2013
51
Wiring Examples
Chapter 4
Light Curtain
This example shows wiring and controller configuration when using a Guard I/O
module with a light curtain. If used in combination with the programs in a safety
controller, this wiring is Safety Category 2, 3, or 4, based on the light curtain
being used, in accordance with EN 954-1 wiring requirements.
Controller
Configuration
Parameter Name
Configuration Setting
Safety Input 0
Safety Input 0 Channel Mode
Safety
Safety Input 0 Test Source
None
Dual-channel Safety Input 0/1 Mode
Dual-channel Equivalent
Dual-channel Safety Input 0/1 Discrepancy Time
100 ms (application dependent)
Safety Input 1
Safety Input 1 Channel Mode
Safety
Safety Input 1 Test Source
None
I0
0SSD1
0SSD2
24
COM
T0
I1
T1
31805-M
FE
IN+
IN-
E1
Connect the OSSD1 and OSSD2 to
I0 and I1, respectively. Connect
the 24V power supply commons.
E1: 24V DC Power Supply