8
4.M
AINTENANCE
4.3 T
ROUBLESHOOTING
The troubleshooting chart covers most of the difficulties that you may encounter
under normal working condition. Such information can be used to determine whether
the fault is caused by external factors or how to tackle the problem. If the UPS still
fails to operate properly, please contact the service centre as soon as possible .
Be
sure you have the following information when contacting the service personnel:
1.
Model number, serial number
2.
Date on which the problem occurred
3. Description in detail of the problem
P
ROBLEM
P
OSSIBLE CAUSE
C
ORRECTIVE ACTION
No indication, no audible alarm
even though the UPS is
connected to mains power
supply
No input voltage
Check building wiring socket-
outlet, input power cable, input
breaker.
AC INPUT
LED blinks
Maybe reversed
polarity (L/N) of site
wiring.
Please check the polarity of
site wiring or building wiring.
AC INPUT
LED blinks and
BATTERY LED lights up
Input power and/or
frequency are out
of tolerance
The UPS is now running in
battery mode.To save your
data and then close the
applications, ensure that mains
power is within the input
voltage/frequency range of the
UPS
AC INPUT
and
BYPASS
LED
light up even though the power
supply is available
Inverter not
switched on
Press On button
“
I
”
UPS ON
LED lights up, warning
sound at intervals of every 1 or 4
seconds
Mains power
supply has failed
In battery mode operation;
warning sound at intervals of 1
second means battery
discharge near ending
ALARM
LED lights up, warning
sound once a second
Overloaded
Reduce number of loads
connected to the UPS
ALARM
-LED lights up, the
alarm beeps continuously
Maybe the UPS
has internal faults
Call for services
Battery discharge time
diminishes
Batteries not fully
charged / batteries
aged/batteries
defected
Charge the batteries for at
least 12 hours. Please consult
the distributor or call for battery
replacement
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Страница 1: ...USER MANUAL RACK MOUNT 1 2 3 6kVA...
