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 to “ON-BATTERY mode” and automatically perform a self-test for about 10 seconds. (Shown as fig 4-4.) 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 to “ON- LINE mode”.
Fig 4-4 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 “ON-BATTERY mode”.
4-6 If certain abnormal condition occurs, the UPS will send the following messages:
{ ON-BATTERY mode: When the UPS is in “ON-BATTERY mode”, 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 4-5.
Fig 4-5 On-Battery Mode
{ 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 4-6.
Fig 4-6 Overload and UPS turn into Bypass
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SHEET 20 TO 21
