Rockwell Automation Publication 1734-UM013N-EN-P - September 2017 69
Install the Module Chapter 4
Dual-channel Safety Contactors
This example shows wiring and controller configuration when using a
1734-OB8S digital POINT Guard I/O module with redundant safety
contactors.
When used in combination with the programs of the safety controller, this circuit
configuration is safety Category 4. Additional wiring, such as monitoring
feedback, can be required to achieve safety Category 4.
Figure 32 - 1734-OB8S POINT Guard I/O Module Wiring (redundant safety contacts)
Controller
Configuration
Parameter Name Configuration Setting
Safety Output 0 Safety Output 0 Point Mode Safety Pulse Test
Point Operation Type Dual-channel
Safety Output 1 Safety Output 1 Point Mode Safety Pulse Test
COM COM COMCOM
COM COM COMCOM
00 01 04 05
02 03 06 07
K1K1
K2K2
M
Where:
O0…O7 = Safety Outputs
COM = Common
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