Uninterruptible Power Supplies Online UPS 1K Service Manual download pdf (Page 13)

TRUE ON LINE UPS TRUE ON LINE UPS

Problem

Possible cause

Remedy

No indication, no warning tone

even though system is

connected to mains power

supply

No input voltage

Input switch has

disconnected

[for 6K(H)/ 10K(H)]

Check building wiring socket outlet

and input cable.

Set the Input switch to ON

LINE LED blinks Phase and neutral

conductor at input

of UPS system are

reversed

Rotate mains power socket by 180

or connect UPS system according to

chapter 5 onnection and operation .

LINE LED blinks and

BATTERY-LED lights up

Input power and/or

frequency are out of

tolerance

Check input power source and

inform dealer if necessary

LINE and BYPASS LED light

up even though the power

supply is available

Inverter not

switched on

Press On-Switch I

INVERTER LED lights up,

and audible alarm sounding

every 1 or 4 seconds

Mains power supply

has failed

Switching to battery mode automatically.

When audible alarm sounding every

second, battery is almost empty.

INVERTER LED lights up,

warning tone at intervals of

every 1 or 4 seconds, mains

power supply available

[for 6K/ 10K]

Input switch

disconnected

Set the Input switch to ON . If the

problem persists, please inform

your dealer.

FAULT LED lights, warning

tone once a second

Overload Remove loads of UPS output.

FAULT-LED lights up,

permanent warning tone

UPS fault Notify dealer!!

Emergency supply period

shorter than nominal value

Batteries not fully

charged / batteries

defect

Charge the batteries for at least

1 - 2 hours and then check

capacity. If the problem still

persists, consult your dealer.

FAULT LED lights, BATTERY-

LED blinks, warning tone once

a second

Charger or

Batteries damaged

Notify dealer!!

FAULT LED lights,Indicator3

and Indicator6 lights,

permanent warning tone

BATSCR short

[for 6K/ 10K]

Notify dealer!!

Please have the following information at hand before calling the After-Sales Service

Department:

1. Model number, serial number

2. Date on which the problem occurred

3. Detailed description of the problem

7. Maintenance

7-1 Operation

The UPS system contains no user-serviceable parts. If the battery service life (3~5

years at 25 ambient temperature) has been exceeded, the batteries must be replaced.

In this case please contact your dealer.

7-2 Storage

If the batteries are stored in temperate climatic zones, they should be charged every

three months for 8-10 hours (see Chapter 5 "Connection and Operation"). You should

shorten the charging intervals to two months at locations subject to high temperatures.

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Uninterruptible Power Supplies Online UPS 1K Service Manual Page 13

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