APC Automatic Disconnect Switch Guide de l'utilisateur télécharger pdf (Page 48)

USER’S GUIDE

AUTOMATIC TRANSFER SWITCH

Configuration option

Item Definition

Source A Name

Source B Name

The user-defined name for each source, 32-characters maximum.

Preferred Source The power source to which the Automatic Transfer Switch will

transfer when both input power sources are acceptable. Options are

Source A, Source B, and None.

Voltage Transfer

Range

Defines the range of acceptable voltage from a power source. If the

voltage of the selected input source is not within this range, the

Automatic Transfer Switch transfers to the alternate power source.

Options are Wide, Medium, and Narrow.

Sensitivity Defines the sensitivity of the Automatic Transfer Switch to changes

in voltage.

• Low: Causes the Automatic Transfer Switch to accept frequent

small line voltage changes without switching to the alternate power

source.

• High: Causes the Automatic Transfer Switch to switch to the

alternate power source in response to small line voltage changes.

Provides the best protection for sensitive equipment.

Current Limit The threshold, in amps, at which an Over Current Alarm is

generated.

Reset to Default

Settings

Reset the Automatic Transfer Switch to its default values.

OTE: The Network Management Card loses communication briefly

while the Automatic Transfer Switch resets itself.

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APC Automatic Disconnect Switch Guide de l'utilisateur Page 48