Rockwell Automation 1752-L24BBBE SmartGuard 600 Controllers User Manual - Manual (Page 75)

Rockwell Automation Publication 1752-UM001E-EN-P - June 2014 75
Configure Local I/O Chapter 6
7. Set the Dual Channel mode for the safety output.
Setting Dual Channel mode enables an error to be detected if the two
outputs from a user program are not equivalent. If an error is detected in
one of two outputs circuits, both outputs to the device will become
inactive.
IMPORTANT If a safety pulse test is set, an off pulse signal (pulse width 580
µs) is
output to diagnose the output circuit when the safety output turns on.
Check the input response time of the control device to make sure this
output pulse will not cause malfunctions.
Table 5 - Output Dual Channel Mode Settings
Channel Mode Description
Single Channel The safety output terminal is used independently.
Dual Channel The safety output terminal is paired with another output terminal. The output
can be turned on when both the output and the paired safety output are
consistent.