Omron Powli BU50SW Instruction Manual page 34

3. Displays and beeps during power failure or AC input error
Bypass
Power supply
Status
No. operation
output
indicator
lamp
lamp
6
7
8
4. Displays and beeps when there is an equipment failure
Bypass
Power supply
Status
operation
No. output
indicator
lamp
lamp
—— ——
(Note 3) (Note 3)
Battery
Beep Charging
replacement
lamp
Intermittent
OFF
4-second
Discharging
intervals
Intermittent
OFF
1-second
Discharging
intervals
OFF
None
Discharging
None (ON)
None (ON)
Battery
Beep Charging
replacement
lamp
Intermittent
ON
0.5-second
or
discharging
intervals
ON
Continuous
or
discharging
ON
Continuous
or
discharging
ON
Continuous
or
discharging
Continuous ——
Continuous ——
50 75
BU SW / BU SW / BU
(
(
(
Description
In Battery Mode due to power
Perform shutdown operations
failure or AC input error.
for the connected devices
Output will stop if Battery
and stop them.
Mode continues.
(Same as above.)
Battery level is low, so output (Same as above.)
will soon stop.
Battery is dead,
so output stopped.
Charge the battery.
(This is displayed only for
a few seconds.)
AC input voltage or
frequency is too high.
(over)
Power switch is OFF.
AC input voltage or
frequency is too low.
(Same as above.)
(under)
Power switch is ON.
(
(
(
Description
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
Reduce the number of connected
operation (Note 1).
devices until the display appears
When connection capacity is at
as in status No. 3.
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)
Turn OFF the power switches of
all devices connected to the unit,
Output stopped due to exceeded
reduce the number of connected
connection capacity.
devices, and turn the power
switch back ON again.
Check that the AC input of
Output stopped due to output
connected devices is not
short-circuit.
short-circuited.
Replace the external cooling fan
if it does not function properly.
Moved to bypass operation due
to problem with the external
The fan can be replaced via the rear
cooling fan (Note 1).
panel without stopping this unit.
Use replacement fan sold
separately. (Note 2)
Turn OFF this unit and all
connected devices. Then, turn the
power switch back ON for this unit
Failure occurred. When the beep
only. If the display does not
stop switch is pressed, the
change, there is a problem with
details of the error are displayed
this unit. Contact the shop of
(Nos. 16 to 23).
purchase or our Elefctronic
Systems & Equipments customer
support center at: _____
Moved to bypass operation due Displays the details of the error that
occurred only while pressing the beep
to output voltage error (over)
stop switch while in state No. 15.
(Note 1).
100 150
SW / BU
indicates the display is OFF)
indicates the display is ON)
indicates blinking)
Solution
Use within the input voltage/
frequency range described
in the specifications.
indicates the display is OFF)
indicates the display is ON)
indicates blinking)
Solution
See also "Replaceing the fan" Page 37
SW
1
2
3
4
5
6
7
8
9
1 0
21