Uninterruptible Power Supplies Online UPS 2K User Manual download pdf (Page 31)

8. Trouble Shooting

If the UPS system does not operate correctly, check the operating status on the LCD

display.

Warning String

Fault String

Site fail SITE Inverter short SHOR

Fan fail FANF Overload fault OVLD

Battery over voltage (over charged)

HIGH Inverter soft start fail ISFT

Battery low bLOW

Bus soft start fail bSFT

Charge fail CHGF

Over temperature fault OVTP

Inverter temperature high TEPH Inverter voltage low INVL

Ambient temperature high AMbH

Inverter voltage high INVH

Battery open bOPN Bus voltage over bUSH

Overload OVLD Bus voltage Low bUSL

EPO EPO Bus voltage unbalance bUSE

Battery fault bATF Bus short bUSS

NTC open NTCO

If the UPS system does not operate correctly, please attempt to solve the problem

using the table below.

Problem Pzle cause Remedy

No indication, no

warning tone even

though system is

connected to mains

power supply

No input voltage Check building wiring socket outlet

and input cable.

Display Mode

string ”STbY” in LCD,

even though the power

supply is available

Inverter not switched on Press On-Switch “I”.

Display Mode

string ”bATT” in LCD,

and audible alarm

sounding every 1 beep

in every 4 seconds

Mains power supply has

failed, or Input power

and/or frequency are out

of tolerance

Switching to battery mode

automatically.

Check input power source and inform

dealer if necessary.

Emergency supply

period shorter than

nominal value

Batteries not fully charged

/ batteries defect

Charge the batteries for at least

5 - 8 hours and then check capacity.

If the problem still persists, consult

your dealer.

Fan fail Fan abnormal Check if the fan is running

Battery over voltage Battery is over charged Stop charging to battery

automatically, and after the battery

voltage is normal and the mains is

normal, charge automatically again.

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Uninterruptible Power Supplies Online UPS 2K User Manual Page 31

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