Rockwell Automation T3488/T3488A ICS regent Monitored Guarded Output Modules - Manual (Page 11)

Monitored Guarded Output Modules (T3481/81A, 84 and 88/88A)
P D - 6 0 3 3 M a r - 0 6 (Issue 2)
11
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 monitored guarded output module as shown in
Figure 5.
In this configuration continuous operation can be maintained
even if a module, field wiring or load fault occurs.
Figure 5. Fault Tolerant Configuration with Redundant
Actuators.
Output Load Considerations
The monitored guarded output module will operate correctly
(no FAULT indication) with loads as small as 20 mA. The 81A
and 88A version will operate with loads as small as 5 mA.