Sanyo SANUPS E11A102A User Manual download pdf (Page 34)

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12. Troubleshooting

If a problem occurs, check the condition of the equipment and perform countermeasures as

listed in the table below.

CAUTION

！

・

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 equipment, hazardous voltage is

present. Never touch any parts with your hand. Doing so may result in an

electric shock.

Condition Countermeasure

No power supplied to

output.

・

Check whether the input wiring has been performed correctly. Refer to §7

“Wiring”.

・

Verify that the input voltage and input frequency are within the rated

range. Refer to §15.4 “Specifications”.

・

Check that MAIN SW is set to “ON”.

・

must be pressed for at least 1 second.

See §9.1 “UPS Startup (Normal Operation)” for the correct startup

procedure.

・

The bypass fuse may be blown. See §11.7 “Bypass Fuse Exchange”.

Output does not stop.

・

must be pressed for at least 1 second.

See §9.4 “UPS Shutdown (Daily)” for the correct shutdown procedure.

However, bypass power supply continues if bypass operation was started

by changing over with the forced bypass switch, overload, or failure.

・

Check the setting of item

⑪

“Inverter stop operation” in §10.1 “Setup

Menu Item List”. It may be set to “Bypass”. The factory default setting is

“OFF”.

・

Check the setting of item

⑨

“

switch response time” in §10.1

“Setup Menu Item List” . It may be set to “3 seconds” or “Special

operation”. The factory default setting is “1 second”.

Output stops during

operation

・

Check whether the bypass fuse on the back panel is blown. It may have

been blown by an overload or short circuit.

Check the total load and the possibility of a short circuit.

When the total load is high, reduce the number of load devices connected

to the UPS.

See §11.7 “Bypass Fuse Exchange”.

Output stops during a

power failure.

・

Check whether the batteries have reached their replacement interval.

The battery service life will differ depending on the ambient

temperature.

Replacing the batteries early is recommended.

Alarm buzzer sounds.

・

The alarm buzzer sounds when an error, abnormal state, or alarm

condition is detected in the UPS. See §13 “Alarm Sounds”.

Alarm buzzer does not

sound.

・

The alarm buzzer sound may be set to “OFF”.

Check the setting of item

⑧

“Buzzer sound” in §10.1 “Setup Menu Item

List”.

Red ALARM LED is lit.

・

A non-fatal alarm condition or error has occurred.

Contact your supplier.

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Sanyo SANUPS E11A102A User Manual Page 34

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