Emerson Liebert GXT4-10000RT208 User Manual Download

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Troubleshooting

Liebert

GXT4

™

User Manual

7.1.2

Audible Alarm

An audible alarm will sound in conjunction with the visual indicators to indicate a change in UPS operating
status. The audible alarm will sound as described in

Table 7-2

7.2 Troubleshooting

In the event of an issue with the UPS, refer to

Table 7-3

to determine the cause and solution. If the fault

persists, contact Emerson

Channel Support.

Table 7-2

Audible alarm description

Condition

Alarm

Battery discharge

Half-second beep every 10 seconds

Low battery

Two half-second beeps every 5 seconds

UPS fault, load on bypass

1-second beep every 4 seconds

UPS fault, no power to load

Continuous

Overload

Half-second beep every half second

Battery replacement

2-second beep every 2 minutes

Battery loss

Continuous

Wiring problem (loss of proper grounding for UPS)

Continuous

Bypass reminder

1-second beep every 60 seconds

Table 7-3

Troubleshooting table

Problem

Cause

Solution

UPS fails to start

UPS is short-circuited or
overloaded

Ensure UPS is Off. Disconnect all loads and ensure nothing is lodged in
output receptacles. Ensure loads are not defective or shorted internally.

Batteries are not charged
enough or not connected

Check to ensure the internal battery is connected. If it is not, make the
connection and try to start the unit. If the battery is connected, leave the
UPS connected to input power for 24 hours to recharge batteries, then try
to start the unit.

Battery indicator
is illuminated

UPS is not plugged in

UPS is operating from battery mode. Ensure UPS is securely plugged
into the wall receptacle.

UPS input protection fuse has
blown/opened

UPS is operating from battery mode. Save data and close applications.
Replace UPS input fuse, then restart UPS.

Mains power is out of tolerance

UPS is operating from battery mode. Save data and close applications.
Ensure mains supply voltage is within acceptable limits for UPS.

UPS has
reduced battery
backup time

Batteries are not fully charged

Keep UPS plugged in continuously at least 24 hours to recharge
batteries.

UPS is overloaded

Check load level indicator and reduce the load on the UPS.

Batteries may not be able to
hold a full charge due to age

Replace batteries. Contact your local dealer, Emerson representative or
Emerson Channel Support for replacement battery kit.

Battery indicator
is flashing.

Battery source is not available;
continuous horn.

Check battery connections, completely power down and restart UPS.
NOTE: If the battery circuit opens while the UPS is running, it will be
detected when the next battery test is performed.

Bypass indicator
is flashing.

Because the voltage or
frequency is outside acceptable
limits, the bypass is disabled.

The AC input powers the PFC input and serves as the bypass source. If
the AC is present but the voltage or frequency exceeds the acceptable
range for safe operation with a load, the bypass will be disabled and this
indicator will flash, indicating that the bypass is unavailable.