Troubleshooting; Typical Alarms And Faults - Eaton 9A UPS Manual

9A UPS 1-3K
7

Troubleshooting

The Eaton 9A is designed for reliable, autonomous operation while providing you with noti-
fications and alerts whenever a potential operational or performance issues occur.
Usually, the alarms shown by the product do not mean that the output power is affected.
Instead, they are preventive alarms intended to alert the user.
• Some alarms may be announced by a beep every 0.5 seconds. Example = "Battery low".
• Faults are announced by a continuous beep and LCD background transfer to red color.
Use the following troubleshooting chart to determine the UPS alarm condition.

7.1 Typical alarms and faults

If the UPS system does not operate correctly, check the operating status on the LCD display.
Alarms
Site fail
Fan fail
Battery over voltage (over charged)
Battery low
Charge fail
Inverter temperautre high
Ambient temperature high
Battery open
Overload
EPO
Battery fault
If the UPS system does not operate correctly, please attempt to solve the problem using
the table below.
Conditions
No indication, no warning tone
even though system is connected
to mains power supply.
Display Mode string "STbY" in
LCD, even though the power
supply is available.
Display Mode string "bATT" in
LCD, and audible alarm sounding
every 1 beep in every 4 seconds.
String Fault
SITE Inverter short
FANF Overload fault
HIGH Inverter soft start fail
bLOW Bus soft start fail
CHGF Over temperature fault
TEPH Inverter voltage low
AMbH Inverter voltage high
bOPN Bus voItage over
OVLD Bus voItage low
EPO Bus voItage unbalance
bATF Bus short
NTC open
Possible cause
No input voltage.
Inverter not switched on.
Mains power supply has
failed, or Input power
and/or frequency are out
of tolerance.
32
Action
Check building wiring socket outlet and input
cable.
Press "On" Switch.
Switching to battery mode automatically.
Check input power source and inform dealer if
necessary.
String
SHOR
OVLD
ISFT
bSFT
OVTP
INVL
INVH
bUSH
bUSL
bUSE
bUSS
NTCO