Leonics Ulta Series, Руководство пользователя

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Symptoms Possible Causes Solutions
UPS operates normally
but the lamp no.3 is blink
or LCD display show over
load sign on the top bar of
load level display
UPS operates normally
but sounds a short beep
periodically or UPS switches
to backup power for a short
period and returns to
normal operating status.
When a black out occurs,
UPS supplies backup
power but it is still
supplying when the AC
source recovers.
4. If you follow steps 1- 3
and the symptoms still
exist, the fuse might be
blown.
Loads which are connected
to Power Watcher ( UPS
output ) are exceed the
UPS rated capacity.
A power sag occurred in
too short a period for the
user to sense. But UPS can
detect that abnormal
condition.
The returned AC source's
voltage is too low for
ULTRA Series UPS to run in
normal operating mode.
Check fuse holder (for
ULTRA Series UPS 650VA or
smaller). If fuse is blown,
replace with the spare fuse.
If the UPS does not
operate, please send it to
a LEONICS Service Center.
Reduce loads to 75%.
(please keep the remain
25% available for
instantaneous power
consumption of the load
when it first starts. )
Do nothing, normal
operation.
- Turn off loads and wait
until the AC source
returns to normal. Then
turn on loads again.
or
- Use backup power from
UPS until battery low
alarm alerts, then turn
off loads and the UPS.
Wait until the AC source
returns to normal, then
- 29 -
Symptoms Possible Causes Solutions
UPS operates normally
but sometimes the
overload alarm alerts.
UPS does not supply
backup power during a
black out and the lamp
no. 8 to no.11 are all lit
(LED display only).
1. Loads are consuming
more power than usual
at that time. Often this
is caused by a printer
when it is printing.
2. Overload may come
from a laser printer or
another load that
connected to the UPS
output outlet.
turn on loads and the
UPS again.
or
- If AC source is normal,
but the UPS still has the
same symptom, see
solution of the first
symptom In this list.
Reduce the loads.
Unplug laser printer from
the UPS output outlet and
plug into the socket for
laser printer (protected
from surge only).
1. Unplug all loads from
UPS. Shutdown the UPS
and restart again.
2. If the UPS still has the
same symptom, shut-
down the UPS and
follow battery replace-
ment instructions.
Disconnect the red wire
from battery connector
5 minutes later, then
shutdown UPS and restart.