Delta Electronics 3KVA, 700VA manual UPS self-test, Silence function

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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 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

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Contents Sheet 1 to Important Safety Instructions UL safety instructionsOther safety notes Other safety instructions TUV safety instructionsFor installation EC conformity declaration Introduction Theory of operationFeature High power densityPFC Power Factor Correction Complete ProtectionSafety approvals Intelligent designConsiderate design Green function designAnnotation and symbol Read before OperationOperation Panel Sheet 11 to Rear Panel Sheet 13 to Installation Before InstallationInstallation Unpacking If input type is terminal type UPSCharging the battery Connecting the battery bankConnecting the RS-232/Dry contact Sheet 18 to Cold start when utility is not present OperationTurning on the UPS Turning OFF the UPSUPS self-test Silence functionSheet 21 to UPS internal fault Derating powerStoring the message into Eeprom Programmable output OptionalMaintenance Placement Troubleshooting Problem Possible Cause SolutionFault Message Communication Interface RS-232Dry Contact Sheet 29 to Technical specifications Sheet 31 to END