UPS Startup

4.The output voltage is the most important operating parameter you must set as part of the initial configuration screens. Select the desired UPS output voltage using the ￿ and ￿ buttons.

Possible selections are 200, 208, 220, 230, and 240 Vac. (Low voltages are derived from these voltages, as listed in Table 5 on page 35 and Table 6 on page 43.) Press the button when the desired output value is displayed.

5.If the system includes any external battery cabinets, record the ampere-hour capacity of batteries installed in these cabinets. Count the number of battery strings (two battery modules, side-by-side equals one string). Each battery string contains 7.2 ampere-hours. Enter the total value in the next startup screen.

External Capacity

extamphr 0028.8

<± ±> ESC

6.The system signals an alarm when required output cannot be maintained with the loss of redundant power modules. The alarm is essentially disabled with a redundancy level set at 0.

If you want the system to notify you when the number of redundant power modules is less than a specified level, enter a redundancy level. Each increment above 0 indicates the number of modules that can be removed from operation before the alarm occurs. This setting only affects the alarm; the system continues to operate as an N+X system even if this parameter is left at the default value of 0.

Set Redundancy

RSetting 0

<± ±> ESC

Powerware® 9170 User's Guide ￿ LTM-1344 B Uncontrolled Copy

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