Omron BN50T User Manual

8 Troubleshooting
BN50T/BN75T/BN100T/BN150T/BN220T/BN300T
8-2
Problem Beep Output Charging Message on
LCD Display
(Note 2)
Cause Solution
· The beeper
sounds
continuously
Continuous ON --- Bat.over
charge
Moved to bypass
operation due to
battery charge
voltage error (over)
(Note 1).
Hold down the [ESC] switch
at least 0.5 seconds until the
beeper stops. This unit might
be out of order. Please contact
the shop of purchase for
repair.
Note: Battery voltage can
be viewed by selecting
[Measurement] menu -
[Battery].
Continuous ON --- Bat.under
charge
Moved to bypass
operation due to
battery charge
voltage error
(under) (Note 1).
Continuous ON --- Over
temperature
Moved to bypass
operation
due to problem
with the
internal
temperature (Note
1).
Hold down the [ESC] switch
at least 0.5 seconds until
the beeper stops. Ambient
temperature of the UPS
may be too high. Check the
ambient temperature of the
UPS. If the temperature is
over 40 degrees C, lower the
ambient temperature. Turn off
all power switches of this unit
and connected devices, and
turn on the power of this unit
only again. If the temperature
is 40 degrees C or lower, this
unit might be out of order.
Please contact the shop of
purchase for repair.
Continuous ON --- Fan fail Moved to bypass
operation
due to problem
with the
internal cooling fan
(Note 1).
Hold down the [ESC] switch
at least 0.5 seconds until the
beeper stops. Make sure that
the fan rotation is not blocked.
If blocked, remove what is
blocking the rotation. If not
blocked, the fan unit might be
out of order. Please contact
the shop of purchase for repair.
· The UPS
power
does not turn
on
· The UPS
does not
output power
to the
secondary
(connected
devices) side
· Power switch
does
not work
None OFF OFF/
discharging
OFF
There is no AC
input.
Check if there is any prob-
lem with the power supply,
connected to the AC input
cable.
None OFF OFF/
discharging
OFF If the AC Input
Overcurrent
Protection is
working, there
are too many
connected devices
or there was a
short-circuit with
the connected
devices.
Disconnect all the connected
devices, set the "AC Input
Overcurrent Protection" to the
factory setting (*), and turn on
the power switch.
If the icon does not display
properly after you perform the
above operation, there is a
problem with the unit.
*:For BN50T/75T/100T/150T,
press the black button.
For BN220T/300T, press the
AC Input overcurrent protec-
tion switch.
None OFF ON Standby by
Bat.level
The UPS does not
start up due to the
insufcient battery
charge.
Set the value of the Standby
battery level lower with
"Setting"-"Boot Settings"-"
Reboot Batt. If it is set to 0%,
it does not include the amount
of charge of the battery in
starting conditions, and so that
the UPS will start immediately.

Omron BN50T Specifications

General

Brand	Omron
Model	BN50T
Category	UPS
Language	English