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Operator Control and Display Panel
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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 47.
Figure 47 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 47) 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.
INVERTER ON
SILENCE ON/OFF
INVERTER OFF FAULT CLEAR
EPO
F2 F4 HELPF1 F3
?
L-N current (A)
Frequency (HZ)
L-L voltage(V )
PowerFactor
L1-N/L2
71.4
59.9
480
0.99
L2-N/L3
70.8
59.9
480
0.99
L3-N/L1
71.3
59.9
480
0.99
Output
Input disconnect closed 01-06 09:15
B ypa ss a bnorm al 01 -06 0 9: 15
Liebert NX 2007-01-06 09:20:37
Single Normal80kVA-3X3
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