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Apply power to the loads if the unit won’t operate?
Turn the optional external bypass switch to either the Service or the Line position. In these two positions, line
power flows directly to the loads. In the Service position, the UPS does not receive line power and may be
worked on for maintenance purposes.
Set the UPS to turn on in High Efficiency mode?
Go to menu 2. Select the system mode desired at power-on by pressing the up- or down-arrow button. When the
display shows Auto High Efficiency, press the Enter button.
Set the UPS to operate in High Efficiency mode on weekends?
Before leaving for the weekend, go to menu 2. Select High Efficiency and press the Enter button. After the
weekend, return to the Automatic mode by going to menu 2 again, and selecting Auto followed by pressing the
Enter button.
Change the level of system redundancy?
To view or change the redundancy level, go to menu 11. Enter parameter 1801, which is the current redundancy
setting. If you wish to change the number of redundant (backup) power modules, press the Enter button, change
the value of the parameter, and press the Enter button to store the displayed value.
Change the batteries?
Each side-by-side pair of battery modules forms one series string on the DC bus. Refer to Section 702 for the
battery replacement procedure.
Add/delete one or more strings of batteries?
Physically install or remove battery modules as described in Step 3 of Section 300. Report the number of
batteries (in all external battery cabinets) to the system operating software by going to paramter 0205.
Add/delete one or more power modules?
Physically install or remove power modules as described in Step 3 of Section 300. The system operating
software senses the number and location of all power modules in the chassis rack. If you want to change the
number of redundant power modules, go to parameter 1801 and change the level of system redundancy.
Check the condition of the batteries?
The results of the most recent battery test are stored at menu 6 2. There is no direct method of checking the
condition of individual batteries.