APC Automatic Disconnect Switch Guide de l'utilisateur télécharger pdf (Page 21)

USER’S GUIDE

AUTOMATIC TRANSFER SWITCH

Alarms menu

Event Counts

The event counts screen records of the number of times each of the

following events has occurred since the last time the counts were cleared.

• Redundancy loss

• Source switch

• Over current

• Source preference change

• Spike/Dropout

• Surge/Droop

• Frequency Loss

• Warm Boot

• Switch Inhibit

Item Definition

Redundancy One or both sources have a voltage or frequency out of range.

Source Switch The Automatic Transfer Switch is unable to switch sources.

Over Current Power source input current is over the acceptable threshold.

Source A Power source is out of range.

Source B Power source is out of range.

Power Supply The 24V, +12V, –12V, or 5V power supply is out of range.

Configuration Configuration changes have been made.

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APC Automatic Disconnect Switch Guide de l'utilisateur Page 21