OPERATION
17.Select the System On option; press the 
button.
18.Confirm the selection. Press and hold the 
button for three seconds, until the UPS stops beeping.
The UPS goes to Bypass mode for five seconds, and then the 
indicator illuminates. Each UPS should be in Normal mode.
19.Press the ESC button until the Eaton Powerware logo appears.
20.
S Using the button, scroll to the Settings menu and then press the 
button twice to select the User Settings menu.
SUsing the 
button, scroll to the Parallel Operation Settings option and press the 
button.
SUsing the 
button, scroll to the Start Auto Calibration option and
press the 
button to select the option. Press and hold the 
button for a second to begin the process.
21.After calibration completes (in less than a minute), verify the load sharing through the front panel:
S Using the 
button, scroll to the Measurements menu and press the 
button twice to select the Parallel System menu.
S Select and view the voltage meter options.
22.Press the ESC button until the Eaton Powerware logo appears.
48 | EATON Powerware® 9155 Parallel UPS |