Rockwell-automation T3468A ICS Regent DC Guarded Digital Output Module Manual de usuario descargar pdf (Pagina 17)

(T3461A, 62A, 68A) DC Guarded Digital Output Modules

6019

Mar

To program fault tolerant outputs two output coils driven by

the same control logic are used as shown in Figure

Figure

. Programming Fault Tolerant Outputs.

In this illustration A, B, C, D represent various logic elements

used to drive the outputs; XV103A represents the output on

one Guarded output module; and XV103B represents the

output on the other Guarded output module.

Maintenance

No periodic maintenance or calibration is required for this

module.

Fuses can be removed and replaced without removing the

module from the I/O chassis. Turning the fuse holder one

quarter turn from its lo

cked position releases the fuse holder,

extending the fuse and allowing it to be removed.

To prevent damage to the module, replacement fuses must be

of the same rating and type (see Specifications, below).

Safety Considerations

The DC Guarded output modules are TÜV certified to Risk

Class 5 for safety critical outputs. The modules are approved

for de

energize to trip safety critical outputs in single or dual

module configurations.

The modules are also approved for energize to

trip safety

critical outputs in dual module configuration

only

if the

outputs are dynamically transitioned at a period not greater

that six months (to verify the signal wiring and load device

integrity).

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Rockwell-automation T3468A ICS Regent DC Guarded Digital Output Module Manual de usuario Pagina 17