Rockwell Automation T3446H ICS Regent Relay Output Modules - Manual (Page 6)

Relay Output Modules (T3446L, H)
6
Industrial Control Services
Application
Simplex Configuration
Relay output modules provide a suitable interface to non-
critical output devices. These non-critical devices typically
include status alarms or other field devices that are not used
for primary safety shutdown purposes. Although much of the
circuitry on the relay output module is automatically tested,
some logic circuits and the field-side output switch are simplex
and non-tested. This simplex configuration is illustrated in
Figure 3. For safety-critical outputs requiring fail-safe or
fault tolerant output configurations, Guarded digital output
modules should be used.
Figure 3. Simplex Relay Output Configuration.
Field Wiring
Field wiring terminal blocks on the I/O chassis are used to
connect power sources and loads to the module. The terminal
blocks are located directly above and below the slot where the
module is installed. Each terminal block consists of ten #6
wire clamp screw terminals capable of holding two 12 AWG
wires.
Each module has two terminals for each Form-A or Form-B
selectable relay (channels 1, 2, 7, and 8), and three terminals
for each Form-C relay (channels 3, 4, 5, and 6). Figure 4
shows the correct field wiring connections for the relay output
modules.