Mimic Display Indicators; Figure 41 Mimic Display Indicators Location; Table 15 Mimic Display Status Indicators - Emerson Liebert NX 480V User Manual

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

Bypass indicator
Inverter indicator
Rectifier indicator
Battery indicator
Status indicator
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
Load on rectifier
Rectifier
Battery powering
Battery the load
Inverter powering
Inverter
the load normally
Load on Bypass
Bypass
power
UPS output on
Load
No alarms—UPS
Status
working normally
* 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.
Load indicator
LED1
LED4
LED2 LED5
LED3
Buzzer
STATUS
Flashing Green / Amber
Flashing Green: Utility normal,
but rectifier not operating
Flashing Green: Battery pre-
warning (low battery)
Flashing Green: Inverter on
standby
—
—
Amber: UPS has a general
alarm
Operator Control and Display Panel
Liebert NX 2007-01-06 09:20:37
80kV A-3X 3 S ingle Norm al
Main
Bypass Output
L 2-N/ L3 L 3-N/ L1
L1-N/L 2
L-N current (A) 71. 4 70.8 71.3
Frequency (HZ)
59. 9 59.9 59.9
L-L voltage (V ) 480
480 480
0.99
P owerFactor 0. 99 0. 99
Input disconnect closed 01-06 09:15
Output disconnect closed 01-06 09:15
Bypass abnorm al 01-06 09 :15
?
F1 F2 F3 F4 HELP
Red
Rectifier fault
Battery or battery
converter abnormal*
Inverter fault
Bypass out of
normal range
UPS output
overloaded
UPS has a serious
alarm
58
EPO
INVER TER OFF FAULT C LEAR
SILENC E ON/ OFF
INVER TER ON
Off
Rectifier is normal, but utility is
abnormal
Battery and converter are
normal, and battery is not
discharging
Inverter normal, but off
Bypass Normal
UPS no output power
—