Emerson 208V, GXT3 user manual UPS Symptoms, Troubleshooting, Indicators, Battery level indicator

Troubleshooting

7.0TROUBLESHOOTING

This section indicates various UPS symptoms a user may encounter and troubleshooting steps in the event the UPS develops a problem. Use the following information to determine whether external factors caused the problem and how to remedy the situation.

7.1UPS Symptoms

The following symptoms indicate the Liebert® GXT3™ has malfunctions.

•The related indicators will illuminate, indicating the UPS detected a problem.

•An alarm will sound, indicating that the UPS requires attention.

7.1.1Indicators

In addition to the fault indicator being illuminated, one or more of LED segments of battery level indicator will also be illuminated to provide a diagnostic aid to the user, as shown in Figure 25. The descriptions are listed in Table 8.

Figure 25 Battery level indicator

			A	B	C	D	E
Table 8	Indicator descriptions
Indicator		Diagnosis/Audible alarm
A - E		On bypass from output overload (half-second beep every half-second)
A		On bypass due to overtemperature condition (1-second beep every 4 seconds)
B		On bypass due to DC bus overvoltage (1-second beep every 4 seconds)
C		On bypass due to DC/DC power supply failure (1-second beep every 4 seconds)
D		On bypass due to PFC failure (1-second beep every 4 seconds)
E		On bypass due to inverter failure (1-second beep every 4 seconds)
A&B		UPS Failure (includes dual-fan failure, single-fan failure under certain conditions and battery
		charger failure) and continuous alarm
A&C		UPS failed battery test (2-second beep every60 seconds)
A&E		Bypass feedback (1-second beep every 4 seconds)
B&E		Short circuit on the output
C&E		UPS shutdown by command from communication (USB port or Liebert IntelliSlot™ port) (no
		audible)
Utility LED flash		L-N reverse
Battery Indicator		Battery not connected (continuous horn); check battery connection, power down and restart
Flashing		UPS
Bypass Indicator		Utility power voltage or frequency is out of tolerance; bypass is unavailable
Flashing

Indicators A - E are shown in Figure 25.

If the UPS experiences an overload, the UPS will transfer from bypass back to inverter approximately 5 minutes after the overload ends.

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