Liebert 30-130kVA Power Supply User Manual


 
Operation
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The DC BUS/BATTERY status screen displays the following real-time data:
DC Bus Volts
•Battery Volts
Battery Current (Chg/disch)
Battery Temperature (This reading is the temperature of the ambient air in the battery cabinet.)
Battery Time Remaining
3. BYPASS INPUT. Selecting BYPASS from the Monitor Mimic Display displays the following
screen showing bypass input voltage and the bypass input frequency. Press SELECT to return to
the Monitor Mimic Display.
Figure 17 Bypass input status
The Bypass Input Block displays the following real-time data:
Bypass AC Volts AB, BC, CA
Bypass Frequency
Bypass Phase Difference
4. OUTPUT / LOAD. Select LOAD from the Monitor Mimic Display screen to bring up this block. It
displays total output power to the critical load in kVA and kW. The critical load current per phase
is also displayed in this block. Note that kW is not displayed when the load is on the bypass line.
During an overload condition, the time remaining before transfer is displayed at the bottom of the
load box. Press SELECT to return to the Mimic Display Screen.
Figure 18 Output load status screen
BYPASS INPUT STATUS
A B C FREQ. 59.9 HZ
V L - L 213 213 214 PHASE DIFF 0
V L-L 205 203 207
V L-N 120 117 118
I 5 5 162
KVA 1 1 19
KW 1 1 15
OUTPUT LOAD STATUS
A B C
FREQ. 59.9 HZ
% OF RATED LOAD:
KVA 42 %
KW 42 %
OVLD COND (SEC.)