Rockwell-automation T8442 Trusted TMR Speed Monitor Manual de usuario descargar pdf (Pagina 31)

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Module T8442

Issue 8 Apr 10 PD-T8442 31

3.1.20. Relay Test Selector

This selector field can be set globally for the module.

The selection in this field configures the behaviour of the automatic relay tests.

There are three behaviour types:

• Automatic relay testing disabled.

• A test time interval may be selected. Relay contact transition tests are performed on each

quadrant of the output structure at the interval specified. Background coil testing is enabled in

this mode.

• Only relay coil testing enabled. Relay contact transition tests are not performed in this mode.

Table 5 shows each of the behaviours available for selection.

The time intervals available for selection determine the configured rate at which the output relay

quadrants are automatically tested.

The default behaviour is for automatic relay testing to be disabled.

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Rockwell-automation T8442 Trusted TMR Speed Monitor Manual de usuario Pagina 31