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Page 39
9PX 1-3 KVA US_EN
ENGLISH
7. Troubleshooting
The Eaton 9PX are designed for durable, automatic operation and also alert you whenever potential ope-
rating problems may occur. Usually the alarms shown by the control panel do not mean that the output
power is affected. Instead, they are preventive alarms intended to alert the user.
• Events are silent status information that are recorded into the Event log. Example = "AC freq in range".
• Alarms are recorded into the Event log and displayed on the LCD status screen with the logo blinking.
Some alarms may be announced by a beep every 3 seconds. Example = "Battery low".
• Faults are announced by a continuous beep and red LED, recorded into the Fault log and displayed on
theLCDwithaspecicmessagebox.Example=Out.shortcircuit.
Use the following troubleshooting chart to determine the UPS alarm condition.
7.1 Typical alarms and faults
To check the Event log or Fault log :
1. Press any button on the front panel display to activate the menu options.
2. Press the
button to select Event log or Fault log.
3. Scroll through the listed events or faults.
The following table describes typical conditions.
Conditions Possible cause Action
Battery mode
LED is On.
1 beep every 10 seconds.
A utility failure has occurred and
the UPS is in Battery mode.
The UPS is powering the equipment
with battery power. Prepare your
equipment for shutdown.
Battery low The UPS is in Battery mode and
the battery is running low.
This warning is approximate, and the
actual time to shutdown may vary
significantly.
Depending on the UPS load and
number of Extended Battery Modules
(EBMs), the "Battery Low" warning
may occur before the batteries reach
20% capacity.
LED is On.
1 beep every 3 seconds.
No battery The batteries are disconnected. Verify that all batteries are properly
connected.
If the condition persists, contact your
service representative.
LED is On.
Beep continuous.
Battery fault The battery test is failed due to
bad or disconnected batteries,
or the battery minimum voltage is
reached in ABM cycling mode.
Verify that all batteries are properly
connected. Start a new battery test:
if the condition persists, contact your
service representative.
LED is On.
Beep continuous.
The UPS does not
provide the expected
backup time.
The batteries need charging or
service.
Apply utility power for 48 hours to
charge the batteries. If the condition
persists, contact your service
representative.
Bypass mode An overload or a fault has
occurred, or a command has been
received and the UPS is in Bypass
mode
Equipment is powered but not
protected by the UPS.
Check for one of the following alarms:
overtemperature, overload or UPS
failure.
LED is on.
Power overload Power requirements exceed the
UPS capacity (greater than
100% of nominal; see in table 6
on page 42 for specific output
overload ranges).
Remove some of the equipment from
the UPS.
The UPS continues to operate, but
may switch to Bypass mode or shut
down if the load increases.
The alarm resets when the condition
becomes inactive.
LED is On.
Beep continuous.
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