BU
50
SW / BU
75
SW / BU
100
SW / BU
150
SW
21
1
2
3
4
5
6
7
8
9
10
No.
Status
indicator
Power supply
output
lamp
Beep
Charging
Description
Solution
Bypass
operation
lamp
Battery
replacement
lamp
3. Displays and beeps during power failure or AC input error
6
7
OFF
Discharging
OFF
Discharging
8
None
Discharging
OFF
In Battery Mode due to power
failure or AC input error.
Output will stop if Battery
Mode continues.
(Same as above.)
Battery level is low, so output
will soon stop.
Battery is dead,
so output stopped.
(This is displayed only for
a few seconds.)
9
None
○
○
○
10
None
○
○
○
(Same as above.)
(ON)
(ON)
Use within the input voltage/
frequency range described
in the speci
fi
cations.
( indicates blinking)
( indicates the display is ON)
( indicates the display is OFF)
AC input voltage or
frequency is too high.
(over)
Power switch is OFF.
AC input voltage or
frequency is too low.
(under)
Power switch is ON.
Intermittent
4-second
intervals
Intermittent
1-second
intervals
(Same as above.)
Perform shutdown operations
for the connected devices
and stop them.
Charge the battery.
4. Displays and beeps when there is an equipment failure
●
○
○
○
○
○
11
12
Continuous
Output stopped due to exceeded
connection capacity.
○
●
○
●
○
○
○
13
14
15
●
●
○
16
——
(Note 3)
——
——
(Note 3)
——
Continuous
Continuous
Continuous
Continuous
Output stopped due to output
short-circuit.
( indicates blinking)
( indicates the display is ON)
( indicates the display is OFF)
No.
Status
indicator
Power supply
output
lamp
Beep
Charging
Description
Solution
Bypass
operation
lamp
Battery
replacement
lamp
Turn OFF the power switches of
all devices connected to the unit,
reduce the number of connected
devices, and turn the power
switch back ON again.
Check that the AC input of
connected devices is not
short-circuited.
Moved to bypass operation due
to output voltage error (over)
(Note 1).
Displays the details of the error that
occurred only while pressing the beep
stop switch while in state No. 15.
Failure occurred. When the beep
stop switch is pressed, the
details of the error are displayed
(Nos. 16 to 23).
Turn OFF this unit and all
connected devices. Then, turn the
power switch back ON for this unit
only. If the display does not
change, there is a problem with
this unit. Contact the shop of
purchase or our Elefctronic
Systems & Equipments customer
support center at: _____
Moved to bypass operation due
to problem with the external
cooling fan (Note 1).
See also
Replace the external cooling fan
if it does not function properly.
“Replaceing the fan” Page 37
The fan can be replaced via the rear
panel without stopping this unit.
Use replacement fan sold
separately. (Note 2)
Reduce the number of connected
devices until the display appears
as in status No. 3.
There are too many connected
devices and the rated capacity is
exceeded. If this state continues
for as long as or longer than the
times described below,
commercial power con-tinues to
be supplied through bypass
operation (Note 1).
・
When connection capacity is at
100% or higher: Bypass operation
begins after 10 seconds
・
When connection capacity is
at
120% or higher: Output stops after
1 minute (Go to No.12)
・
When connection capacity is at
140% or higher: Output stops after
10 seconds (Go to No.12)
Intermittent
0.5-second
intervals
ON
or
discharging
ON
or
discharging
ON
or
discharging
ON
or
discharging