Rockwell Automation T3485 ICS Regent Isolated Guarded Output Modules - Manual (Page 10)

Isolated Guarded Digital Output Module (T3485)
1 0
Industrial Control Services
Fault Tolerant Configuration with Redundant
Actuators
When redundant actuators are installed in the field, the level
of fault protection can be extended to include the field wiring
and actuators. Each actuator should be connected to an
individual isolated Guarded output module as shown in
Figure 6.
In this configuration continuous operation can be maintained
even if a module, field wiring or load fault occurs.
Figure 6. Fault Tolerant Configuration with Redundant
Actuators.
Output Load Considerations
Output Current Ratings
The output current ratings for the isolated Guarded output
module can be expressed in terms of individual output circuit
ratings and total module ratings.