Sanyo Denki Sanups A11J Instruction Manual Download Page 41

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Troubleshooting

2/3

UPS Status

LCD Indication

LED Status

Countermeasure

-STANDBY-

Green INPUT: On

Was

on the LCD panel or

on the UPS Unit control panel pressed

accidentally and set to “OFF”?
Perform the correct procedure to set it to “ON.”

Byp Fuse Error

Red ALARM: On
Red WARNING:
On

Has

MAIN MCCB

tripped?

The breaker may have tripped by an overload or short circuit.
Check the load capacity and whether there is a short circuit.
If the load capacity is high, reduce the number of load devices connected to
the terminal block of the UPS. See “§9.3 Resetting the Main Breaker.”

Are the unit-to-unit output cables connected properly?

See “§6.3.1 Wiring Between UPS Units,” and connect the cables properly.

Remote OFF

Green INPUT: On

Is the remote OFF signal being input? See “§5.4 External Interface,” and

check whether the external control terminal is connected properly.

Power from the terminal
block of the UPS stopped
during operation.

EPO ON

Green INPUT: On

Is the EPO signal being input? See “§5.4 External Interface,” and check

whether the external control terminal is connected properly.

An overload state occurs
even though the connected
load devices do not exceed
the UPS rated capacity.

Over load

Are the unit-to-unit output cables connected to the back of the UPS Units

properly?
If there is a UPS Unit that is not connected, the output capacity will be
reduced by an amount equivalent to the capacity of the unit. See “§6.3.1
Wiring Between UPS Units,” and connect it properly.

MAINTENANCE BYPASS

set to “ON”?

If it is set to “ON,” set it to “OFF.” Set the switch to “OFF” for UPS
operation.

Power from the terminal
block of the UPS stopped
during a power outage.

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 buzzer sounded.

The buzzer sounds when a state change, warning, or error occurs in the

UPS.
See “§10. When A Buzzer Sounds.”

The buzzer does not sound.

Is “Buzzer” in the LCD panel setting menu set to “SILENT” (stopped)?

See “§3.8 Setting Buzzer Condition” in the LCD Panel Operating Manual
and check the setting value.

Nothing is displayed on the
LCD panel.

Are the UPS Unit and LCD panel connected properly with the connection

cable?
See “§6.2 Installing the Battery Packs and Attaching the Front Panel.”

Cannot operate the LCD
panel.

Are the UPS Unit and LCD panel connected properly with the connection

cable?
See “§6.2 Installing the Battery Packs and Attaching the Front Panel.”

The LEDs on the UPS Unit
control panel do not turn
on.

- All:

Off

MAIN MCCB

set to “ON”?

See “§8.1 Starting the UPS” and check the correct operating procedure.

The LEDs on the UPS Unit
control panel of one UPS
Unit do not turn on.

All LEDs on one
UPS Unit are
off.

MAIN MCCB

of the UPS Unit for which the LEDs do not turn on set to

ON?
See “§8.1 Starting the UPS” and check the correct operating procedure.

Cannot operate the UPS
Unit control panel.

- Red

ALARM:

The UPS has malfunctioned. Contact your sales representative or SANYO

DENKI.

The battery power supply
continues.
The power supply switches
to battery power supply
frequently.

Input Error
Input Freq Err
Input Vol Hi
Input Vol Low

Green BACKUP:
On

MAIN MCCB

set to “ON”? If it is set to “OFF,” set it to “ON.” (If MAIN

MCCB is set to “OFF” during normal operation, the operation will become
the same as for a utility power supply failure and the power supply will
switch to battery power.)

Check that the input voltage and input frequency are within rated ranges.

See “§12.4 Specifications.”

Cannot perform a battery
test.

- -

A battery test cannot be performed when:

①

The inverter is stopped.

②

The bypass power supply is active.

③

The battery operation is being performed.

④