To Next Page

To Previous Page

Ultron NT Series

Chapter 7 : UPS Operation

 3UH6WDUWXS3UH7XUQRႇ:DUQLQJV



Please check the following items before start-up of the UPS.

1. All circuit breakers or switches are in the OFF position.

 (DFKH[WHUQDOEDWWHU\FDELQHW¶VEDWWHU\EUHDNHULVLQWKHOFF status.

3. Ensure that neutral line and grounding have the same voltage.

 %HIRUHVXSSO\LQJSRZHUWRWKH836FKHFNWKDWLQSXWYROWDJHIUHTXHQF\DQG

SKDVHVHTXHQFHDUHPHWZLWK836VSHFL¿FDWLRQV

5. Ensure that every fuse is in the ‘CONNECTION¶VWDWXV



3OHDVHUHDGWKHIROORZLQJEHIRUHWXUQLQJRႇWKH836

If you perform turn-off procedures, all power supplying to the UPS will be

completely cut off. Please make sure the critical loads connected to the UPS

KDYHDOUHDG\EHHQVDIHO\VKXWGRZQEHIRUH\RXSHUIRUPWKHWXUQRႇSURFHGXUHV

7.2 Start-up Procedures

7.2.1 Normal Mode Start-up Procedures (Single)

NOTE :

Before executing the following start-up procedures, please refer to 7.1

3UH6WDUWXS3UH7XUQR௺:DUQLQJV¿UVW

1. Turn on the Reserve Input breaker or switch, and the LCD will display ‘Bypass

Mode¶

2. Turn on the 5HFWL¿HU,QSXW breaker or switch and wait about 30 seconds. After

that, the DC BUS voltage will be established to 393V.

 7XUQRQHDFKH[WHUQDOEDWWHU\FDELQHW¶VBattery breaker.

4. Press the ‘ON¶DQGµ

¶EXWWRQVVLPXOWDQHRXVO\IRUVHFRQGV$IWHUWKDWWKH

inverter will start up. Once the inverter voltage is established, the power will be

switched from bypass to inverter. At this moment, it will be the inverter to supply

power to the connected loads, and the LCD will display ‘Normal Mode¶$IWHU

30 seconds, the UPS will automatically execute a battery test to check if the

connected batteries are normal or not.

Delta NT Series User Manual

Questions and Answers: