Rockwell Automation T7470A ICS Regent+Plus Analog Output Modules - Manual (Page 6)

Analog Output Modules (T7470A)
6
Industrial Control Services
For high integrity applications requiring fail-safe or fault
tolerant analog outputs, guarded analog outputs should be
used.
Field Wiring
For field wiring details, refer to PD-7901 - I/O Termination
Assembly (ITA).
Fault Mode Jumper
The fault mode jumper is located behind the ID switch cover
in the lower left-hand corner of each I/O chassis. The position
of the fault mode jumper determines the module's response to
system level faults. The fault mode jumper’s position will
cause all output modules in the I/O chassis to either shutdown
(turn off all outputs) or to hold (hold the last state) after a
system level failure occurs. An example of a system level
failure is the failure of two processor modules.
When the analog output module is in the shutdown mode,
analog output signals are at 0 mA (not 4 mA).
Keying
The I/O chassis can be physically keyed to prevent accidental
damage caused by inserting a module into a slot wired for a
different module type. Figure 4 illustrates how the slot keys
are installed on the I/O chassis slot field wiring connectors.
The slot key positions for the analog output module are listed
in Table 1.
Table 1. Slot Key Positions.
Module Upper
Connector
Lower
Connector
T7470A 9 2
Important!