Delta Electronics 700VA, 3KVA manual Sheet 21 to

{ BATTERY REPLACE: This LED function is to alert user that the batteries should be replaced. When the microprocessor in the UPS detects a battery fault, the UPS alarm will give out three beeps. Each beep lasts for 0.5 seconds and interrupted by an interval of 0.5 seconds. After the initial 3 beeps, the alarm will continue to sound every one hour. Shown as fig 4-7.

Fig 4-7 Battery Replace

{ BATTERY LOW: This function is to inform user the remaining power capacity of the batteries. When batteries reach a low level condition, the UPS alarm will beep half second every 1.5 seconds until running out of battery capacity. Shown as fig 4-8.

Fig 4-8 Battery Low

{ SHORT CIRCUIT: When the output of the UPS shorts in “ON-LINE mode” or “ON-BATTERY mode”, the UPS will shut down (without output voltage). As soon as the short circuit is happened, the fault LED will light on and the UPS alarm will sound continuously. When remove short circuit, the UPS output will recover. If short circuit is happened in “BYPASS mode”, the UPS will protect itself by tripping the input breaker and shut down. Shown as fig 4-9.

Fig 4-9 Short Circuit

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SHEET 21 TO 22