Emerson Liebert NX 480V - Manual (Page 66)

Operator Control and Display Panel
58
8.2 Mimic Display Indicators
The Mimic display on the front panel consists of six indicators arranged in a single-line diagram
depicting the various paths of UPS power, as shown in Figure 41.
Figure 41 Mimic display indicators location
The current operational status of the Liebert NX is indicated by the color of the indicators—green,
amber or red—and whether they are ON (solid), flashing or OFF. Table 15 provides a guide to inter-
preting the various states of the indicators.
Table 15 Mimic display status indicators
Indicator
(see
Figure 41) Green Flashing Green / Amber Red Off
Rectifier
Load on rectifier Flashing Green: Utility normal,
but rectifier not operating
Rectifier fault Rectifier is normal, but utility is
abnormal
Battery
Battery powering
the load
Flashing Green: Battery pre-
warning (low battery)
Battery or battery
converter abnormal*
Battery and converter are
normal, and battery is not
discharging
Inverter
Inverter powering
the load normally
Flashing Green: Inverter on
standby
Inverter fault Inverter normal, but off
Bypass
Load on Bypass
power
—
Bypass out of
normal range
Bypass Normal
Load
UPS output on
—
UPS output
overloaded
UPS no output power
Status
No alarms—UPS
working normally
Amber: UPS has a general
alarm
UPS has a serious
alarm
—
* Battery or battery converter abnormal events include these event messages (see Appendix A): No Battery, Battery Replaced, Battery
Reverse, Batt. Conv. Over. Curr., Batt. Converter Fault, Batt. Converter Overtemp.
INVER TER ON
SILENC E ON/ OFF
INVER TER OFF FAULT C LEAR
EPO
F2 F4 HELP F1 F3
?
L-N current (A)
Frequency (HZ)
L-L voltage (V )
P owerFactor
L1-N/L 2
71. 4
59. 9
480
0. 99
L 2-N/ L3
70.8
59.9
480
0. 99
L 3-N/ L1
71.3
59.9
480
0.99
Output
Input disconnect closed 01-06 09:15
Bypass abnormal 01-06 09 :15
Liebert NX 2007-01-06 09:20:37
S ingle Normal 80kV A-3X 3
Output disconnect closed 01-06 09:15
Bypass Main
LED1
LED2
LED3
LED4 LED5
STATUS
Rectifier indicator
Battery indicator
Bypass indicator
Inverter indicator
Load indicator
Status indicator
Buzzer