3 Checking and starting the operation
3-1 Names and functions of each part of the operation and display sections
BU5002R/BU3002R/BU3002RH
70
■ Errors other than the battery errors
○: ON, ●: OFF
UPS
status
Icon
Symbol
Buzzer
Output Charge
Text
displayed
on top
Description
Solution
Over
load
○
(Not
e 1)
○
(Not
e 1)
●
Intermittent,
at intervals
of 0.5
seconds
ON
or
OFF
ON
or
OFF
Fault-E9
The load of the
connected devices
exceeds the rated
capacity. If the
operation of UPS is
continued, it is
switched to bypass
operation in the case
of normal operation,
and output stops in
the case of backup
operation.
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.
Note: The load
amount can be
checked from
the LCD Menu
by “1.
Measurements”-
“Load Meter”
●
●
● Continuous OFF
OFF Fault-EO
There is a fault
due to overload,
so output has
stopped.
Output
short
circuit
○
(Not
e 1)
○
(Not
e 1)
● Continuous OFF
ON
Fault-ES
Output has
stopped due to a
short circuit on the
connected device
side or a major
connection
capacity overload.
Check whether a short
circuit is occurring on the
AC input of the
connected device, or the
connected capacity is
exceeding the rated
capacity.
Output
voltage
high
○
(Not
e 1)
○
(Not
e 1)
● Continuous
ON
or
OFF
ON
or
Disch
arging
Fault-E1
The output voltage is
high, and thus if the
operation of UPS is
continued, it is
switched to bypass
operation in the case
of normal operation,
and output stops in
the case of backup
operation.
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”.
Output
voltage
low
○
(Not
e 1)
○
(Not
e 1)
● Continuous
ON
or
OFF
ON
or
Disch
arging
Fault-E2
The output voltage is
low, so if continued in
normal operation, it
will change to bypass
operation, and if in
backup operation
output will stop.
Battery
voltage
high
○
(Not
e 1)
○
(Not
e 1)
● Continuous
ON
or
OFF
ON
or
Disch
arging
Fault-E3
The battery charging
voltage is high, and
thus if the operation of
UPS is continued, it is
switched to bypass
operation in the case
of normal operation,
and output stops in
the case of backup
operation.
Battery
voltage
low
○
(Not
e 1)
○
(Not
e 1)
● Continuous
ON
or
OFF
ON
or
Disch
arging
Fault-E4
The battery charging
voltage is low, so if
continued in normal
operation, it will
change to bypass
operation, and if in
backup operation
output will stop.