AEC IST5015 User Manual
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IST5 Tower UPS 10kVA~40kVA User Manual 37Operations5.2.5 Switching the UPS into Normal Mode from Maintenance Bypass ModeThese following procedures can transfer the load from the Maintenance Bypass modeto inverter output.After finish of maintenance, close the bypass breaker and the bypass static switchwill be turned on in 30S after the LED screen goes on, the bypass indicator goesgreen and the load is powered through maintenance bypass and static bypass. Turn off the maintenance bypass switch and fix the protection cover, and then theload is powered through bypass. The rectifier starts followed by the inverter. After 60S, the system transfers to Normal mode.WaringThe system will stay on bypass mode until the cover of maintenance bypass breaker is fix.5.3 Battery MaintenanceIf the battery is not discharged for a long time, it is necessary to test the condition ofthe battery.Enter the menu ，as is shown in Fig.5-3 and select the iconMaintTest，the system transfers into the Battery mode for discharging. The system willdischarge the batteries until the alarm of “Battery low voltage” is given Users canstop the discharging by the “Stop Test” icon .With the icon ofBattTest , batteries will be discharged for about 30 seconds,and then re-transfer to normal mode.FUNCTION ENDBACKManual INVManualByp/EscFault ClearStop TestBatt. TestMaint TestFig.5.3 Battery maintenance5.4 EPOThe EPO button located in the operator control and display panel (with cover to avoiddisoperation, see Fig.5-5) is designed to switch off the UPS in emergency conditions(e.g., fire, flood, etc.).To achieve this, just press the EPO button, and the system will |
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