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UPS Status
LCD Indication
-STANDBY-
Power from the terminal
block of the UPS stopped
－
during operation.
－
Power from the terminal
block of the UPS stopped
－
during a power outage.
The buzzer sounded.
－
The buzzer does not sound.
－
Nothing is displayed on the
－
LCD panel.
Cannot operate the LCD
－
panel.
The LEDs on the unit
control panel do not turn
－
on.
Cannot operate the unit
－
control panel.
Input Error
Battery power supply
continues.
Input Freq Err
Power supply switches to
Input Vol Hi
battery power frequently.
Input Vol Low
The UPS does not switch
from bypass power supply
－
to UPS power supply
(inverter power supply).
LED Status
Was
on the LCD panel or
Green INPUT: Lit
pressed accidentally and set to "OFF"?
Perform the correct procedure to set it to "ON."
Is the remote OFF signal being input? See §5.4 "External Interfaces,"
Green INPUT: Lit
and check whether the external control terminal is connected properly.
Is the EPO signal being input? See §5.4 "External Interfaces," and
Green INPUT: Lit
check whether the external control terminal is connected properly.
Have the batteries deteriorated?
Check the time to replace the batteries.
The battery service life will vary depending on the ambient
－
temperature. Early battery replacement is recommended.
Did a power outage occur within the last 12 hours? The remaining
capacity of the batteries may be low. Sufficiently charge the UPS.
The alarm buzzer sounds when a state change, warning, or error
occurs in the UPS.
－
See §10. "Buzzer Sounds."
Is "Buzzer" in the LCD panel setting menu set to "SILENT (stopped)."
－
See §3.8 "Setting Buzzer Condition" in the
Manual
and check the setting value.
Are the UPS unit and LCD panel connected properly with the
－
connection cable? See §6.2 "Attaching LCD Panel."
Are the UPS unit and LCD panel connected properly with the
－
connection cable? See §6.2 "Attaching LCD Panel."
Is
MAIN MCCB
All: Off
See §8.1 "UPS Startup" and check the correct operating procedure.
The UPS has malfunctioned. Contact your supplier or SANYO
Red ALARM: Lit
DENKI.
Is
MAIN MCCB
"OFF," set it to "ON."
(If
MAIN MCCB
Green BACKUP:
operation will become the same as for a utility power supply failure
Lit
and the power supply will switch to battery power.)
Check that the input voltage and input frequency are within the rated
ranges. See §14.4 "Specifications."
Check that the forced bypass switch
"Inverter." The forced bypass switch
inside the front panel of the UPS. Remove the front panel to check.
See step ⑥ of §6.2 "Attaching LCD Panel."
switch is set to "Bypass," set it to "Inverter" and then press
again to switch to UPS power supply.
If "Overload Recovery Operation" in the LCD panel setting menu is
set to "Auto Ret BYP," the UPS switches to bypass power supply when
there is an overload, and after the overload continues for a certain
period of time, switches back to UPS power supply automatically. If
－
the overload condition persists, the UPS switches to bypass power
again, and this cycle is repeated. See §3.10 "Setting Overload
Recovery Operation" in the
If "Overload Recovery Operation" in the LCD panel setting menu is
set to "Stay on BYP," bypass power supply continues when the overload
condition continues. When the overload condition is resolved, the UPS
switches to UPS power supply.
If the voltage of the utility power supply is low and the load current is
at or below the overload detection threshold when the UPS switches
to bypass power supply, the UPS continues to switch between UPS
power supply and bypass power supply. See §3.10 "Setting Overload
Recovery Operation" in the
Countermeasure
on the unit control panel
LCD Panel Operating
set to "ON"?
on the unit control panel set to "ON"? If it is set to
is set to the "OFF" during normal operation, the
Forced Bypass
Forced Bypass
If the forced bypass
LCD Panel Operating Manual
LCD Panel Operating Manual
Troubleshooting
2/3
is set to
is located
.
.
36
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