Startup; Figure 21 System Ratings Screen; Figure 22 Mimic Display Screen With Load On Bypass And Switches Closed - Liebert 30-130kVA Operation And Maintenance Manual

3.3.2

Startup

There are two start up scenarios which can be followed depending on whether there is already power
supplied to the UPS and the UPS is on Bypass, or there is no power to the UPS. Follow the appropri-
ate instructions.
First Scenario
Power is not supplied to the UPS (Upstream breakers are open). Locate the Rotary Switch located on
the inside of the cabinet on the lower right side as you face the cabinet. Turn the Rotary Switch to the
Normal position. For a Single Input unit close the upstream breaker so that power is applied to the
UPS. For Dual Input units close both the Input and Bypass line breakers so that power is applied to
the Input of the UPS and the Bypass line. At this time, power will be applied to the load through the
internal static bypass.

Figure 21 System ratings screen

As soon as power is applied, you will see the SYSTEM RATINGS screen (Figure 21). These are the
ratings of the unit that were programmed in at the factory. Using the arrow keys highlight SAVE &
EXIT and push the SELECT button. This will advance you to the USER SETTINGS screen. The
USER SETTINGS have been pre-set at the factory. However, they may be customized for your site.
See 3.3.5 - Configuration Screens for detail information on configuration screens. You can change
these configurations at any time. Use the arrow keys to move the cursor to SAVE & EXIT and push
SELECT. This will move you to the MIMIC screen that will look like Figure 22. You are now ready to
follow the instructions for automatic start up; see Auto Startup on page 28. Service technicians
may alternately use the Manual Start Up procedure for troubleshooting purposes in Manual
Startup on page 29.

Figure 22 Mimic display screen with load on bypass and switches closed

SYSTEM RATINGS
KVA
SYSTEM POWER FACTOR
INPUT VOLTS
OUTPUT VOLTS
BYPASS VOLTS
NEXT
MIMIC DISPLAY
RECT.
BATTERY
27
40
0.8
480
208
480
EXIT
LOAD
LOAD
INV.
SYS STATUS
Operation