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Rockwell Automation Publication 1734-UM013C-EN-P - August 2010
Chapter 2
Safety Functions
Safety Outputs
Read this section for information about safety outputs.
Safety Output with Test Pulse
When the safety output is on, the safety output can be configured to pulse test
the safety output channel.
By using this function, short-circuits between output signal lines and the power
supply (positive side) and short-circuits between output signal lines can be
detected. If an error is detected, the safety output data and individual safety
output status turn off.
Figure 12 - Test Pulse in a Cycle
For the 1734-OB8S module, the pulse width (X) is typically 475 μs; the pulse
period (Y) is typically 575 ms.
IMPORTANT
To prevent the test pulse from causing the connected device to
malfunction, pay careful attention to the input response time of
the output device.
44096
X
Y
OUT
On
Off
Содержание 1734-IB8S
Страница 1: ...POINT Guard I O Safety Modules Catalog Numbers 1734 IB8S 1734 OB8S Installation User Manual...
Страница 4: ...4 Rockwell Automation Publication 1734 UM013C EN P August 2010 Summary of Changes Notes...
Страница 38: ...38 Rockwell Automation Publication 1734 UM013C EN P August 2010 Chapter 2 Safety Functions Notes...
Страница 52: ...52 Rockwell Automation Publication 1734 UM013C EN P August 2010 Chapter 3 Install the Module Notes...
Страница 58: ...58 Rockwell Automation Publication 1734 UM013C EN P August 2010 Chapter 4 Wire the Module Notes...
Страница 64: ...64 Rockwell Automation Publication 1734 UM013C EN P August 2010 Chapter 5 Power Supply Examples Notes...
Страница 144: ...144 Rockwell Automation Publication 1734 UM013C EN P August 2010 Appendix D Specifications Notes...
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