Vertiv Liebert EXM - 2.7 Liebert Power Module Assembly

Vertiv™ | Liebert® EXM
™
50-250kVA, 480V, 60Hz User Manual | 17
2.7 Liebert® Power Module Assembly
Figure 5 Liebert® Power Module Assembly indicators and controls
The Run LED is illuminated green when the Liebert
®
Power Module Assembly is operating
normally.
The Fault LED will illuminate red when the Liebert
®
Power Module Assembly has a problem.
Table 1 LED indications
LED Status Indication
Run LED (Green)
Flashing
Green
The inverter is starting, but has no output yet.
Constant
Green
The inverter has started to supply power.
OFF The inverter has not started up.
Fault LED (Red)
Constant Red
Auxiliary power failure (15V or 24V), rectifier overtemperature, rectifier failure (including battery SCR short
circuit), battery converter failure, soft start failure, main circuit back feed, abnormal input current, inverter
failure, output short circuit, bypass SCR short circuit fault, inverter relay short circuit fault, abnormal bus
voltage, module not ready, module ID out of range and duplicated module ID.
Flashing Red
Charger failure, abnormal main circuit voltage, abnormal main circuit frequency, main circuit undervoltage,
main circuit reverse phase, battery unavailable, reverse battery, input zero-loss, current sharing failure,
module overload, inverter relay disconnection fault, bypass SCR disconnection fault and input fuse blown.
OFF No above failures or alarms.
DIP Switches
Run
LED
Fault LED
See Figures 16 through 19 for details.