Allen-Bradley 1734-OB8S - Examples of Wiring; Emergency Stop Dual-Channel Devices

Rockwell Automation Publication 1734-UM013C-EN-P - August 2010 55
Wire the Module Chapter 4
Examples of Wiring
Read this section for examples of wiring by application. See catalog number
details for the appropriate module.
Emergency Stop Dual-channel Devices
This example shows wiring and controller configuration when using a
POINT Guard I/O module with an emergency stop button and gate monitoring
switch that have dual-channel contacts. When used in combination with the
programs in a safety controller, this wiring is Safety Category 4 (emergency stop
button) and Safety Category 3 (gate monitoring switch).
Figure 17 - POINT Guard I/O Module Wiring (dual-channel contacts)
Controller
Configuration
Parameter Name Configuration Setting
Safety Input 0 Safety Input 0 Channel Mode Test Pulse from Test Output
Safety Input 0 Test Source Test Output 0
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 Test Pulse from Test Output
Safety Input 1 Test Source Test Output 1
Safety Input 2 Safety Input 2 Channel Mode Safety Input
Safety Input 2 Test Source Test Output 2
Dual-channel Safety Input 2/3 Mode Dual-channel Equivalent
Safety Input 3 Safety Input 3 Channel Mode Safety Input
Safety Input 3 Test Source Test Output 3
Test Output 0 Test Output 0 Mode Pulse Test Output
Test Output 1 Test Output 1 Mode Pulse Test Output
Test Output 2 Test Output 2 Mode Power Supply Output
Test Output 3 Test Output 3 Mode Power Supply Output
I0 I1 I4 I5
I2 I3 I6 I7
COM
TO
T1M T2 T3M
COM COM COM COM
TO
T1M T2 T3M
COM COM COM
1734-TB, 1734-
TOP, 1734-TOP3
Bases Shown
Only with the
1734-TOP3 base.