Operation

Operation

Turn On the UPS

1.Connect the UPS to the wall receptacle. LCD will display “OFF”, when Utility is normal. If there is nothing on the LCD, go to step 3.

2.Push the “On” Switch on the front panel to start the UPS. Both the LCD and Utility LED (Green) are lit. The start-up procedure is completed and the loads are supplied by the UPS.

3.To cold start the UPS, press the “On” Switch on the front panel for approximately 3 seconds until the LCD lights up and buzzer sounds, then release the “On” Switch. The UPS starts operating and Battery Backup LED (Amber) lights up. The cold start-up procedure is completed and the loads are supplied by the UPS.

4.The UPS will run under Backup mode and the buzzer alarms every 2 seconds in case of blackout or over/under voltage. On the contrary, If Utility is back to normal and then the UPS will run under Utility mode and silence alarm.

Turn Off the UPS

1.Press the “Off” Switch for at least 3 seconds to turn off the UPS. If you press the “Off” Switch less than 3 seconds, the UPS will not execute shutdown command due to insufficient pressing time.

2.In some occasions, the UPS will shut itself down in case of overload, output short-circuit or battery cutoff point reached in the Backup mode.

3.The UPS will automatically shut off the output and beep for 5 seconds then completely shut itself down.

Plug-In Charge

1.If the Input Power Cord is connected to the wall receptacle properly and the utility is normal, the UPS will start charging automatically without processing “Turn On” procedure.

2.You have to charge for at least 8 hours every 3 months to avoid from battery self over-discharge naturally, if the UPS is in an idle condition.

Auto-Restart

If the Input Power Cord is connected to the wall receptacle properly and Utility is back to normal, the UPS will automatically restart to provide energy to the output after battery cut.

Alarm Silence

1.The Alarm might be turned off by pressing the “On” Switch for approximately 1 second in the “Backup” mode.

2.Unless any other warning or fault condition occurs, the alarm remains at Silence condition once the “Alarm Silence” is turned off.

Self Test

1.Under Utility Normal condition, press the “On” Switch for 3 seconds to execute the Battery Self- test function.

2.In case the battery is normal, it will enter into the Battery Backup Mode for 10 seconds then return to Utility Mode.

NXA-UPS1500 Uninterruptible Power Supply	21