User Manual

Rockwell Automation Publication 1752-UM001E-EN-P - June 2014 251
Function Blocks Command Reference Appendix D
Timing Chart
Figure 73 - Normal Operation
Example: Override Function
The override function can turn on the safety output even though the light-
interruption signal of the light curtain is inactive. If a workpiece gets jammed
during transit, the system cannot be returned to normal operation without
forcibly removing the workpiece. In this type of situation, the override function
can be used to move the workpiece out of the light curtain detection zone.
Figure 74 - Application Setup
Sensor 11 is connected to Muting Signal 11. Sensor 12 is connected to Muting
Signal 12.
AOPD Input 1 (NC)
AOPD Input 2 (NC)
Muting Signal 11
Output Enable
Muting
Muting Time
Sensor 12
Reflected
Board
Reflected
Board
Sensor 11
Work
Light Curtain