Omron BU5002R - Page 124

8 Troubleshooting
BU5002R/BU3002R/BU3002RH
124
Problem
Buzzer
Output
Charge
Message
displayed on
LCD (Note 2)
Cause
Action
Buzzer
sounds
continuously
Continuo
us sound
OFF
Undefin
ed (note
3)
Fault-ES
Output
short-circuit
Output has stopped due
to a short circuit on the
connected devices side
or a major connection
capacity overload.
Check whether there is a short
circuit on the AC input of the
connected devices, or whether the
connected capacity is exceeding
the rated capacity.
Continuo
us sound
ON
Undefin
ed (note
3)
Fault-EO
Overload stop
The UPS switches to
bypass operation
because of overload
(note 1).
Turn off the power switches of all
the devices connected to the UPS,
and after reducing the connected
devices, turn on the power
switches of the UPS and the
connected devices.
Continuo
us sound
ON
Undefin
ed (note
3)
Fault-E1
Output over vol.
The output voltage is
abnormal (high), so the
UPS switches to bypass
operation (note 1).
Turn off the power switches of all
the devices connected to the UPS,
and turn on the power switch of the
UPS only. If the displayed content
does not change, the UPS is faulty.
Contact the shop of purchase.
Note: The output voltage can be
checked from the LCD Menu
by “1.Measurements”-
“Input/Output Meter”. The
battery voltage can be
checked by
“1.Measurements” - “Battery
Meter”.
Continuo
us sound
ON
Undefin
ed (note
3)
Fault-E2
Output under
vol.
The output voltage is
abnormal (low), so the
UPS switches to bypass
operation (note 1).
Continuo
us sound
ON
Undefin
ed (note
3)
Fault-E3
Batt.Over
Charge
The charging voltage is
abnormal (high), so the
UPS switches to bypass
operation (note 1).
Continuo
us sound
ON
Undefin
ed (note
3)
Fault-E4
Batt.Under
Charge
The charging voltage is
abnormal (low), so the
UPS switches to bypass
operation (note 1).
Continuo
us sound
ON
Undefin
ed (note
3)
Fault-E6
Over
temperature
The internal temperature
is abnormal, so the UPS
switches to bypass
operation (note 1).
Check that the ambient
temperature of the UPS is 40°C or
less. If the UPS is not used in a
high temperature environment, the
UPS is faulty. Contact the shop of
purchase.
Continuo
us sound
ON
Undefin
ed (note
3)
Fault-E7
A breakdown of an
internal component or
internal circuit has been
detected, so the UPS
switches to bypass
operation. (note 1).
The UPS is faulty, so contact the
shop of purchase.
Continuo
us sound
OFF
OFF/dis
chargin
g
Fault-E12
Battery Over
temp
An abnormal battery
temperature was
detected during backup
operation. Output will
stop.
The UPS is faulty, so contact the
shop of purchase.