Delta Electronics N Series User Manual

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4-4 UPS self-test
If press the 1/TEST button when the UPS is in “ON-LINE mode”, it will make
the UPS shift toǏON-BATTERY modeǐand automatically perform a self-test
for about 10 seconds. (Shown as fig 4-3.) The self-test function will check the
condition of the battery. After self-test is finished and test is O.K, the UPS will
return toǏON- LINE modeǐ.
Fig 4-3 UPS Self-Test
4-5 Silence function
The buzzer can be turned “On” or “Off” by toggling the 1/TEST button when the
UPS is in ǏON-BATTERY modeǐ.
4-6 Abnormal condition
If certain abnormal condition occurs, the UPS will send the following messages:
9 ON-BATTERY mode: When the UPS is in ǏON-BATTERY modeǐ,
the on- battery LED will light on, buzzer beep half second every 2
seconds and then the UPS will start supplying power to load through
batteries. Shown as fig 4-4.
Fig 4-4 On-Battery Mode
9 OVERLOAD: If the load exceeds the UPS rating, after a limited
period, the overload LED will light on and buzzer continuous
beeping to alarm the user. The user should unplug some uncritical
loads to release the overload condition. Shown as fig 4-5.
Fig 4-5 Overload and UPS turn into Bypass

Delta Electronics N Series Specifications

General

Brand	Delta Electronics
Model	N Series
Category	UPS
Language	English