Mimic Display Indicators; Figure 4 Mimic Display Indicators Location; Table 1 Mimic Display Status Indicators - Liebert NX series Operation & Maintenance Manual

2.2

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 4.
Figure 4 Mimic display indicators location
Mimic indicators
1. Rectifier indicator
2. Battery indicator
3. Bypass indicator
4. Inverter indicator
5. Load indicator
6. Alarm indicator
The current operational status of the NX is indicated by the color of the indicators—green, amber or
red—and whether they are ON (solid), flashing or OFF. Table 1 provides a guide to interpreting the
various states of the indicators.
Table 1 Mimic display status indicators
Indicator
(see Figure 4) Green
1. Rectifier Load on rectifier
Battery powering
2. Battery
the load
Load on Bypass
3. Bypass
power
Inverter powering
4. Inverter
the load normally
5. Load UPS output on
No alarms—UPS
6. Alarm
working normally
* Battery or battery converter abnormal events include these event messages (see Table 8 in Appendix A): No Battery, Battery Replaced,
Battery Reverse, Batt. Conv. Over. Curr., Batt. Converter Fault, Batt. Converter Overtemp.
2
5 6
1
3 4
Liebert NXb
30KVA-3X3
Vphase V
Iphase A
Freq. Hz
Vline V
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 general
alarm
2003-01-22 12:30:36
Unit #1 Norm al
Main
Bypass Output
A(AB) B(BC) C(CA)
120 120
120
20.5 20.5 20.5
50.1 50.1 50.1
208 208 208
Red
Rectifier fault
Battery or battery
converter abnormal*
Bypass out of
normal range
Inverter fault
UPS output
overloaded
UPS has serious
fault
5
Operator Control and Display Panel
EPO
Off
Rectifier is normal, but utility is
abnormal
Battery and converter are normal,
and battery is not discharging
Bypass Normal
Inverter normal, but off
UPS no output
—