Liebert Power Module Assembly; Figure 4 Liebert ® Power Module Assembly Indicators And Controls; Table 2 Led Indications On Power Module Assembly - Vertiv Liebert EXM User Manual

2.7 Liebert ® Power Module Assembly
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Figure 4 Liebert Power Module Assembly indicators and controls
The BATTERY START button allows starting the UPS on battery.
The Run LED is illuminated Green when the Liebert
The Fault LED will illuminate red when the Liebert
Table 2 LED indications on power module assembly
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)
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,
Constant Red
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.
Charger failure, abnormal main circuit voltage, abnormal main circuit frequency, main circuit undervoltage, main circuit
Flashing Red 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.
Vertiv™ | Liebert® EXM™ UPS 20-100kVA, 50/60Hz User Manual |
Fault LED
Battery Start Button
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Power Module Assembly has a problem.
DIP Switches
Run LED
Power Module Assembly is operating normally.
Ready Switch
13