IBM UPS750TLV ユーザーズマニュアル

 

   

 8

 

 

 

Diagnostic Utility 
Voltage  

 

The uninterruptible power supply has a diagnostic feature that displays the utility voltage. 
Plug the uninterruptible power supply into the utility power outlet. 

Press and hold the 

 button to view the utility voltage bar graph display. After a few 

seconds, this five-LED Battery Charge 

 display on the right of the front panel will 

show the utility input voltage.  

Refer to the figure at left for the voltage reading, corresponding to the configured nominal 
output voltage. 

The display indicates the voltage is between the displayed value on the list and the next 
higher value.  

If three LEDs are illuminated, the utility voltage is within the normal range. If no LEDs 
are illuminated and the uninterruptible power supply is plugged into a properly function-
ing utility power outlet, the line voltage is extremely low. If all five LEDs are illuminated, 
the line voltage is extremely high and should be checked by an electrician. 

The IBM uninterruptible power supply switches to battery operation automatically if the utility power fails. While running on 
battery, an alarm beeps four times every 30 seconds. 

Press the 

 button to silence this uninterruptible power supply alarm. If the utility power does not return, the uninterruptible 

power supply continues to supply power to the connected equipment until the battery is fully discharged. 

If you are not using PowerChute, shut down the operating system and turn off the computer before the uninterruptible power 
supply fully discharges the battery. 

The uninterruptible power supply battery charges when connected to utility power. The battery charges to 90% capacity during 
the first three hours of normal operation. Do not expect full battery run capability during the initial charge period. 

Battery Runtime Table     

This chart shows the typical on-battery runtime in minutes. 

50 30 105 224 269 

100 60  57  127 157 

200 

122 28 64 80 

300 

184 18 41 51 

400 

247 13 29 37 

500 311  9.7  23  28 

600 377  7.7  18  22 

700 447  6.4  15  18 

750 500  5.0  13.5 16.5 

800 511  – 

12  15 

900 579  – 

11  13 

1000 700  – 

8 

11 

1200 790  – 

– 

9.0 

1400 936  – 

– 

7.4 

1440 1050  – 

– 

6.7 

1500 1050  – 

– 

6.7