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Troubleshooting
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CAUTION
Check the status of the UPS and see the following table for the countermeasures to take.
UPS Status
The buzzer sounds when the
UPS starts.
No power is supplied from the
terminal block of the UPS.
Power from the terminal
block of the UPS does not
stop.
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Internal maintenance and inspection should be performed only by technically qualified
personnel. Electric shock, injury, burning, fuming or fire could otherwise result.
Before beginning inspection, shut down the UPS completely, and remove the input
power. Failure to do so may result in an electric shock.
While the batteries are connected to the UPS, hazardous voltage is present. Never touch
any parts with your hand. Doing so may result in an electric shock.
LCD Indication
LED Status
Batt Vol Error
－
Green OUTPUT:
－
Off
All: Off
－
Input Error
Green INPUT:
Input Freq Err
Input Vol Hi
Blinking
Input Vol Low
Remote OFF
－
EPO ON
－
Green OUTPUT:
-ONLINE-
Lit
Green OUTPUT:
-BYPASS-
Blinking
Red ALARM: Lit
Nothing is
All other LEDs
indicated.
are off.
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Are the battery packs installed properly?
Stop the UPS, and check that two battery packs and the battery pack
securing bracket are installed properly.
See No. ③ and ④ in §5.1 "UPS" to confirm position of the battery
packs and battery pack securing bracket.
After checking, restart the UPS and check that the buzzer does not
sound.
Is the input power supply connected to the UPS properly?
See §6.3 "Wiring," and perform the wiring properly.
Check that the input voltage and input frequency are within the rated
ranges. See §14.4 "Specifications."
Was the startup operation performed in accordance with the correct
procedure?
See §8.1 "UPS Startup" and check the correct operating procedure.
Is
MAIN MCCB
See §8.1 "UPS Startup" and check the correct operating procedure.
Is the voltage of the UPS set properly?
See §3.1 "Setting Voltage" of the
check the settings.
Check that the input voltage and input frequency are within the rated
ranges. See §14.4 "Specifications."
The remote OFF signal is set to "ON." See §5.4 "External Interfaces."
The EPO signal is set to "ON." See §5.4 "External Interfaces."
Was the shutdown operation performed in accordance with the correct
procedure? See §8.2 "UPS Shutdown."
However, bypass power supply will continue during bypass operation if
it was started by, for example, a change over with the forced bypass
switch, an overload, or malfunction.
If the shutdown operation was performed by pressing
control panel, was the shutdown operation performed in accordance
with the setting value?
Is "UPS Shutdown Operation" in the LCD panel setting menu set to "3
Sec." (3 seconds) or "Unique" (special operation)?
See §3.9 "Setting UPS Shutdown Operation" in the
Operating Manual
The default setting is "1 Sec." (1 second).
Is "UPS Operation at
"BYPASS"?
See §3.11 "Setting UPS Operation at
Operating Manual
"OFF."
The UPS has malfunctioned.
Contact your supplier or SANYO DENKI.
Countermeasure
set to "ON"?
LCD Panel Operating Manual,
and check the setting value.
OFF" in the LCD panel setting menu set to
OFF" in the
and check the setting value. The default setting is
1/3
and
on the unit
LCD Panel
LCD Panel
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