instruction manual...this manual contains important instruction for model bx75xs2. that should be...

• This manual gives you important information to use the BX75XS2 safely and therefore be sureto read it before installation and use.

• Keep this manual handy at the place where you install the BX75XS2 so that you can read itwhenever necessary.

Uninterruptible Power Supply (UPS)

Instruction ManualBX75XS2

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Introduction

Notes on the use of the Unit

● The unit is designed and manufactured for use for OA equipment such as personal computers.Do not use it when very high reliability and safety are required as listed below.• Medical equipment that may cause death directly• Applications that may cause injury (applications that directly affect the operation and control

of planes, ships, railroads, elevators, and so on)• Applications that are always subjected to vibration such as cars and ships• Applications in which a failure of this product may cause significant damage or effect to

the society and public(essential computer systems, main communication equipment, public transportationsystems, and so on)

• Equipment with the same level of importance

● For equipment that greatly affects the safety of people and maintaining public functions,special considerations must be taken for operation, maintenance, and management, suchas duplication of the system and emergency power generation facilities.

● Observe the contents of this manual such as the use conditions and environments.● If you want to use the unit for an important system that requires very high reliability, contact

us;______● Do not modify/alter the unit.● The unit is designed for use inside Japan only. Do not use it in foreign countries.

• If the voltage or frequency of the power supply differs, a failure or fire may occur.• the unit does not comply with overseas safety standards and the EMI standards/regula-

tions.• For power supply, use a commercial power of AC100V (50Hz/60Hz).

©OMRON Corporation. 2002 All Rights Reserved.

Introduction

Thank you for purchasing the POWLI BX75XS2 Uninterruptible Power Supply (UPS).the unit is designed specifically to personal computers.● It protects (backs up) personal computers, displays, peripherals, and so on up to a power

consumption of 750VA/450W from failure of power supply such as power failures and volt-age variations.

● It protects connected devices from surge coming from power line.● You can easily replace batteries by yourself.

Read this manual thoroughly to make the most of the unit.

Disclaimers

We are not liable to all damage including malfunction and failure of equipment, connected devices,and software and other secondary damage even if it is caused by the use of our product.

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IMPORTANT SAFETY INSTRUCTION1. SAVE THESE INSTRUCTIONS.

This manual contains important instruction for Model BX75XS2.

That should be followed during instruction of the UPS and batteries.

2. SYMBOL

This symbol indicates earth ground.

This symbol indicates turining on UPS.

This symbol indicates turining off UPS.

3. INTERNAL BATTERY.Internal battery voltage is 24Vdc.

4. TEMPERATURE RATING.Maximun ambit temperature of UPS 40°C.

5. ENVIRONMENTThe unit is intended for installation in a temperature controlled, indoor area

free of conductive contaminants.

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Table of Contents

■ Table of Contents ■Introduction

IMPORTANT SAFETY INSTRUCTION .............................................................................................................. 1

Safety precautions ............................................................................................................................................. 3

1. Preparation ................................................................................................................................................... 91-1 Checking the contents ......................................................................................................................... 91-2 Name of each part ............................................................................................................................... 91-3 Explanetion of symbol used on unit ..................................................................................................... 9

2. Installation and connection ......................................................................................................................... 102-1 Precautions and notes on installation and connection ...................................................................... 102-2 Installation and connection ................................................................................................................ 132-3 Checking the operation ..................................................................................................................... 15

3. Preparation for Operation ........................................................................................................................... 173-1 Charging the battery .......................................................................................................................... 173-2 Measuring the initial value of backup time ........................................................................................ 173-3 Recharging the battery ...................................................................................................................... 17

4. Operation .................................................................................................................................................... 184-1 Precautions and notes on operation .................................................................................................. 184-2 Start and stop procedures and basic operation................................................................................. 194-3 Interpreting a beep and display ......................................................................................................... 214-4 Suspending a beep ........................................................................................................................... 224-5 Description of the self-diagnostic test function .................................................................................. 224-6 Description of the auto battery test function ...................................................................................... 234-7 Changing the setting of the functions ................................................................................................ 23

5. Maintenance and inspection ....................................................................................................................... 255-1 Checking the battery ......................................................................................................................... 255-2 Replacing the battery ........................................................................................................................ 265-3 Cleaning ............................................................................................................................................ 29

6. Using the Contact Signal ............................................................................................................................ 30

7. Measuring the backup time (checking the discharge time of the battery) .................................................. 337-1 Measuring method of the backup time .............................................................................................. 337-2 Estimated backup time ...................................................................................................................... 33

8. Troubleshooting .......................................................................................................................................... 35

9. Description of related products ................................................................................................................... 369-1 Using the Network Line Surge Protection Function........................................................................... 369-2 Using the UPS monitoring software .................................................................................................. 37

References ....................................................................................................................................................... 40A. Specifications ........................................................................................................................................ 40B. Related products ................................................................................................................................... 40C. Dimensional outline drawing (unit: mm) ................................................................................................ 41D. Circuit block diagram ............................................................................................................................ 42

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Safety precautions

: Indicates prohibition. For example, indicates that disassembly is prohibited.

: Indicates obligation. For example, indicates that grounding is necessary.

Misuse may cause death or serious injury.Warning

Caution

Safety precautions

● The safety symbols and their meaning used in this manual are as follows:

* Property damage means damage to houses/household effects, livestock, and pets.

Note that events categorized as a caution required matter also may cause more serious results under certainconditions.

Do not use this product when very high reliability and safety are requiredas listed below. (This product is designed and manufactured for use forOA equipment such as personal computers.)● Medical equipment or system that may cause death directly.● Applications that directly affect the safety of people (For example, the operation and control

of cars and elevators).● Applications in which a failure of the unit may cause significant damage to the society and

public (For example, essential computer systems and main communication equipment.)● Applications with the same level of importance.

Warning

Important information for safe operation is described.Be sure to read it before installation and start of use.

Misuse may cause injury or property damage.

Carry the unit considering its weight and balance, and place it on a stableand robust base.● Dropping or toppling the unit may cause injury.● The weight of the unit is approximately 7.7 kg.● If you drop the unit, stop using it and have an inspection and repair be done.

For repair, contact us; ____

Keep plastic package bags out of reach of children.● They may put their heads into it, and may be suffocated.

Be sure to connect the input plug of the unit to a wall outlet (commercialpower) of 100VAC (50/60Hz).● Connecting it to a wall outlet (commercial power) of a different voltage may cause a fire.● The unit may fail.

Caution (for installation and connection)

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Safety precautions

Connect the unit to a wall outlet (commercial power) with a current capacitylarger than 12A.● Otherwise, the power cord may be heated.● When an equipment of the maximum output capacity is connected, the current flows up to

12A.

Provide secure grounding.● For a 3P wall outlet, directly connect the 100-VAC input plug of the unit to it. Not doing so may

cause an electric shock in the case of unit failure or electric leakage.● When you use a 3P-2P conversion plug for 100-VAC input plug, be sure to perform grounding

before connecting the 100-VAC input plug into a wall outlet (commercial power).Do not disconnect the grounding before disconnecting the 100-VAC input plug from a walloutlet (commercial power).

● Grounding is necessary to enable its surge protection function.

Do not disassemble, repair, or modify the unit.● Doing so may cause an electric shock or a fire.

Do not install the unit in other than specified orientations.● Dropping or toppling the unit may cause injury.● If you install the unit in an orientation other than specified, the unit cannot be protected from a

battery fluid leakage.

When installing the unit vertically, do not put any object on it.When installing the unit horizontally, do not put any object heavier than25kg.● Doing so may cause distortion of/damage to the case, which may cause a fire.

Do not use the unit where the maximum temperature exceeds 40°C.● The battery becomes weak rapidly and may cause a fire.● Doing so may cause a failure or malfunction of the unit.

Do not install or store the unit in the places listed below.● The humidity is lower than 10%. The humidity is higher than 85%. A closed place such as in a

cabinet without clearance. There is flammable gas or corrosive gas. A place subject to vibra-tion or shock. Outdoors.

● Installation or storing the unit in such a place may cause a fire.

Do not use the unit in a closed place or do not cover the unit.● Doing so may cause abnormal heating or a fire.

Do not connect equipment that exceeds the output capacity of the unit.● The current protection of the unit may operate, which may stop the output.● The wiring of the plug strip heats up, which may cause a fire.

Do not pinch or tie the cable of the unit.● Doing so may cause the cable to be damaged or heated, which may cause an electric shock

or a fire.● If the cable is damaged, stop using the unit and the cable must be repaired.




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Safety precautions

Do not wet or pour water onto the unit.● Doing so may cause an electric shock or a fire.● If you wet the unit, stop using it and the unit must be inspected and/or repaired.


When the battery is dead, replace it immediately or stop using the unit.● Continuing the use of it may cause a fire.

Wipe the 100-VAC input plug clean of dirt with a dry cloth occasionally.● Settled dust may cause a fire.

If you notice abnormal sound or smell, smoke, or leakage from the inside,immediately turn off the power switch and disconnect the 100-VAC inputplug from a wall outlet (commercial power).● Using the unit under such conditions may cause a fire.● If you notice such a condition, never use the unit and contact us; ____ for inspection and

repair.● Use the unit under the conditions in which you can immediately disconnect the 100-VAC input

plug from a wall outlet (commercial power) in the case of an abnormal event.

If fluid leaks from the unit, do not touch the fluid.● Doing so may cause blindness or burns.● If the fluid contacts your eyes or skin, wash it out with lots of clean water and consult your

doctor.

Caution (for use)

* The values in the table are the expected life under standarduse conditions and are not guaranteed.

Ambient temperature

20°C

30°C

Expected life

4 to 5 years

2 to 2.5 years


● This UPS utilizes voltages that may be hazardous. Do not attempt to disassemble the unit Theunit contains no user serviceable parts.Only factory service personnel may perform repairs.

● Connection to any other type of receptacle other than a two-pole,three-wire grounded recep-tacle may result in shock hazard as well as violate local electical codes.

● Do not allow liquids or any foreign object to enter the UPS.DO not place beverages or anyother liquid-containing vessels on or near the unit.

● This unit intended for installation in a controlled environment (temperature controlled, indoorarea free of conductive contaminants).Avoid installing the UPS in locations where there isstanding or running water,or excessive humidity.

● Do not attach a power strip or surge suppressor to the UPS.

● Do not attach non-computer-related items,such as medical equipment,life-supportequipment,microwave ovens,or vacuum cleaners to UPS

● With the installation of the equipment it should be prevented, that the sum of the leakagecurrent of the UPS and the connected consumer does not exceed 3.5mA.


6

Safety precautions

Perform replacement on a stable and flat place.● Handle the battery carefully not to drop it.● Not doing so could cause injury or burns due to liquid (acid) leakage.

Use a specified battery for replacement.● Not doing so may cause a fire.● Product model: BP75XSX (battery pack for BX75XS2)

Do not replace the battery in a place where there is flammable gas.● Spark may occur when connecting the battery, which may cause an explosion or fire.

If fluid (dilute sulfuric acid) leaks from the battery, do not touch the fluid.● Doing so may cause blindness or burns.● If it contacts your eyes or skin, wash it out with lots of clean water and consult your doctor.

Do not disassemble or modify the battery.● Doing so could cause dilute sulfuric acid leak, which could cause blindness and burns.

Do not drop the battery or do not give strong impact on it.● Dilute sulfuric acid may leak.

Do not short the battery with metal objects.● Doing so could cause an electric shock, fire or burn.● Some electrical energy still remains inside the spent battery.

Do not put the battery into fire or do not break it.● The battery may explode or leak dilute sulfuric acid.

● A battery can present a risk of electrical shock and high short circuit current.The followingprecautions should be observed when working on batteries:1) Remove watches, rings, or other metal objects from the hands.2) Use tools with insulated handles.3) Wear rubber gloves and boots.4) Do not lay tools or metal parts on top of batteries.5) Disconnect charging source prior to connecting or disconnecting batteries terminals.

Caution (for battery replacement)

When maintaining connected equipment, turn off the power switch.● Even if you disconnect the AC input plug while the UPS is operating, the power output of the

BX75XS2 is not stopped and 100 VAC is supplied from the wall outlet.● Do not use liquid or spray detergent.


If fluid leaks from the unit, do not touch the fluid.● Doing so may cause blindness or burns.● If the fluid contacts your eyes or skin, wash it out with lots of clean water and consult your doctor.

Do not throw the unit into fire.● The lead battery in the unit may explode, or leak dilute sulfuric acid.

Caution (for maintenance and discarding)


7

Safety precautions

NotesWhen moving the unit from a cold place to a warm place, leave it for several hoursbefore using it.● If the unit is moved to a warmer place and the power is turned on soon, the unit failure may occur due to

condensation to the unit.

Charge the battery for at least 12 hours soon after purchasing the unit.● If you do not use the unit for a long time after the purchase, the property of the battery may deteriorate and

the battery may become unusable.● To charge a battery, connect the 100-VAC input plug of the unit to a wall outlet (commercial power).

When storing the unit, charge the battery for at least 12 hours and turn off the powerswitch.● Even if the unit is not used, the battery gradually discharges, and if it is left for a long time, it goes into an

over discharge state.The backup time may become shorter or the battery may become unusable.

● The storable period of the built-in battery of the unit is 6 months after complete charging.● If you want to store the battery longer than 6 months, connect the AC input plug of the unit to a commercial

power wall outlet for at least 12 hours within 6 months.● Turn off the power switch of the unit during storage.

Do not short the output lines of the unit each other and the output lines to the ground.● The unit may fail.

Do not connect the 100 VAC input plug of the unit to its Power Supply OutputReceptacle during the Battery Mode.● The unit may fail.

Do not connect a page printer (laser printer, etc.) to the unit.● The Commercial Power Mode and Battery Mode are repeated frequently, which may shorten the life of the

battery.● As the peak current of a page printer is large, an excess of the connection capacity or a power failure due

to instantaneous voltage drop may be detected.

Do not use the unit for devices that malfunction due to an instantaneous powerfailure of 10msec (0.01 second) or less.● The connected device may stop due to switching time of 10msec or less.

Do not use the unit for inductive devices such as fluorescent lamps.● Connected devices may stop due to a rectangular wave output.● Inductive devices include devices incorporating transformers, coils, motors, and so on for their input.

Caution (for battery replacement)

● Servicing of batteries should be performed or supervised by personnel knowledgeable ofbatteries and the required precautions. Keep unauthorized personnel away from batteries.


8

Safety precautions

NotesDo not install or store the unit in a place exposed to direct sunlight.● The rise of temperature may cause the built-in battery to deteriorate rapidly and become unusable.

Do not perform a withstand voltage test.● The input circuit has a built-in surge absorption device. A withstand voltage test may break it.● When performing an insulation resistance test, use the 250VDC range.

Before turning off the commercial power, turn off the power switch of the unit.If you cannot turn off the power switch, it is recommended to use UPS monitoringsoftware to automatically stop the unit with the minimum backup time.● When you stop commercial power, the Battery Mode starts. If you frequently use the unit in the Battery Mode

after turning off the commercial power, charging and discharging of the battery is repeated and the batterylife decreases extremely. The less the amount of charging and discharging is, the less the adverse effect onthe life becomes.

ExplanationUsual operation● You may either leave the power switch of the unit on (operation status) or turn it off each time when stopping

the connected system. You can choose either of the operation methods for your convenience. We recom-mend turning off the power switch when you do not use connected devices for a long time.

● The battery is charged when the 100 VAC input plug of the unit is connected to a wall outlet (commercialpower).

End of Battery Mode● If a power failure lasts long, the battery discharges and power output from the unit stops. Shut down your

computer after performing appropriate procedure (for example, saving data) while the unit supplies power.

Reboot● If the battery discharges completely during a power failure, the unit stops. After the recovery from the power

failure, the unit automatically restarts and supplies power. If you do not want to restart connected devices,turn off the power switch of either the unit or the connected devices.

NotesRecycling and Discarding the Battery● The UPS uses a lead acid battery. It is recyclable, precious resources. Please recycle it

when you replace it or discard the produce you do not use any more. Pb


9

1. Preparation

1-2 Name of each part

1. Preparation1-1 Checking the contents

Check whether all the package contents are included and there is no damage found on their appearance.If you should notice defects or anything wrong, contact us; ____

BX75XS2

1. Instruction Manual ................................... 1 pc.2. Warranty card .......................................... 1 pc.3. User registration card .............................. 1 pc.4. 3P-2P conversion adapter ....................... 1 pc.5. Rubber feet .............................................. 4 pc.6. Label (Judgment of Operation Mode) ..... 1 pc.

Front view Rear view

1-3 Explanetion of symbol used on unitSymbol Description

Start the UPS.

Stop the UPS.

Suspend a beep.

UPS output power enable, supplied by operating on line mode, battery mode.

UPS has Error.

GroundingTerminal

AC Input OvercurrentProtection

100VAC InputCord and Plug

Setting Switch

Network SurgeProtection(Option)

Contact SignalConnector

Power SupplyOutput Receptacle

Power Switch

Beep Stop/Test SwitchAlarm Lamp (red)Power Output (green)

Battery ReplacementCover

Instruction Manual User registration card

3P-2P conversion plugRubber feet

Warranty card

Lavel

85

200

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2. Installation and connection


2. Installation and connection2-1 Precautions and notes on installation and connection

Carry the unit considering its weight and balance and place it on a stableand robust base.● Dropping or toppling the unit may cause injury.● The weight of the unit is approximately 7.7 kg.● If you drop the unit, stop using it and the unit must be inspected and/or repaired.


Keep plastic package bags out of reach of children.● They may put their head into it, and may be suffocated.

Be sure to connect the input plug of the unit to a wall outlet (commercialpower) of 100VAC (50/60Hz).● Connecting it to a wall outlet (commercial power) of a different voltage may cause a fire.● The unit may fail.

Connect the unit to a wall outlet (commercial power) with a current capacitylarger than 12A.● Otherwise, the power cord may be heated.● When the equipment of the maximum output capacity is connected, the current flows up to

12A.

Provide secure grounding.● For a 3P wall outlet, directly connect the 100 VAC input plug of the unit to it.

(Refer to "2. Installation and connection" on page 13.)Not doing so may cause an electric shock in case of a operation failure or any leakage.

● When you use the 3P-2P Conversion Plug for the 100 VAC input plug, be sure to performgrounding before connecting the 100 VAC Input Plug into a wall outlet (commercial power).Do not disconnect the grounding before disconnecting the 100 VAC input plug from a walloutlet (commercial power).

● Grounding is necessary to enable its surge protection function. For repair, contact us; ____


Do not install the unit in other than specified orientations.● Dropping or toppling the unit may cause injury.● If you install the unit in an orientation other than specified, the unit cannot be protected from a

battery fluid leakage.

When installing the unit vertically, do not put any object on it.When installing the unit horizontally, do not put any object heavier than25kg.● Doing so may cause distortion of/damage to the case, which may cause a fire.

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NotesWhen moving the unit from a cold place to a warm place, leave it for several hoursbefore using it.● If the unit is moved to a warmer place and the power is turned on soon, the unit failure may occur due to

condensation to the unit.

Charge the battery for at least 12 hours soon after purchasing the unit.● If you do not use the unit for a long time after the purchase, the property of the battery may deteriorate and

the battery may become unusable.● To charge a battery, connect the 100 VAC input plug of the unit to a wall outlet (commercial power).

When storing the unit, charge the battery for at least 12 hours before storage.● Even if the unit is not used, the battery gradually discharges, and the battery is left for a log time, it goes into

an over discharge state.The backup time may become shorter or the battery may become unusable.

● The storable period of the built-in battery of the unit is 6 months after complete charging.● If you want to store the battery longer than 6 months, connect the AC input plug of the unit to a commercial

power wall outlet for at least 12 hours within 6 months.● Turn off the power switch of the unit during storage.

Do not short the output lines of the unit each other and the output lines to the ground.● The unit may fail.


Do not use the unit where the maximum temperature exceeds 40°C.● The battery becomes week rapidly, which may cause a fire.● Doing so may cause a failure or malfunction of the unit. Do not install or store the product in

the places listed below.

Do not install or store the unit in a place as listed below.● The humidity is lower than 10%. The humidity is higher than 85%. A closed place such as in a

cabinet without clearance. There is flammable gas or corrosive gas. A place subject to vibra-tion or shock. Outdoors.

● Installation or storing the unit in such a place may cause a fire.

Do not use the unit in a closed place or do not cover the unit.● Doing so may cause abnormal heating or a fire.

Do not connect equipment that exceeds the output capacity of the unit.● The current protection of the unit may operate, which may stop the output.● The wiring of the plug strip heats up, which may cause a fire.

Do not pinch or tie the cable of the unit.● Doing so may cause the cable to be damaged or heated, which may cause an electric shock

or a fire.● If the cable is damaged, stop using the unit and the cable must be repaired.



12


NotesDo not connect the 100 VAC input plug of the unit to its Power Supply OutputReceptacle during the Battery Mode.● the unit may fail.

Do not connect a page printer (laser printer etc.) to the unit.● The Commercial Power Mode and Battery Mode are repeated frequently, which may shorten the life of the

battery.● As the peak current of a page printer is large, an excess of the connection capacity or a power failure due

to instantaneous voltage drop may be detected.

Do not use the unit for devices that malfunction due to an instantaneous powerfailure of 10msec (0.01 second) or less.● The connected device may stop due to the switching time of 10msec or less.

Do not use the unit for inductive devices such as fluorescent lamps.● Connected devices may stop due to a rectangular wave output.● Inductive devices include devices incorporating transformers, coils, motors, and so on for their input.

Do not install or store the unit in a place exposed to direct sunlight.● The rise of temperature may cause the built-in battery to deteriorate rapidly and become unusable.

Do not perform a withstand voltage test.● The input circuit has a built-in surge absorption device. A withstand voltage test may break it.● When performing an insulation resistance test, use the 250 VDC range.


13


2-2 Installation and connectionConnection to back up your computer and peripherals

(1) Disconnect all AC input plugs of your computer and peripherals from a wall outlet (commercial power).

(2) Install the unit.

● Do not use this unit in an orientation other than the correct ones shown in the figure below.

Write the date of starting use on the label on the side.

Vertical Correct installation orientation

* Stick the attached rubber feet in the 4 corners on the bottom surface.

Horizontal

Wrong installation orientation

Placing the left sidedownward.

✕

✕ ✕

Placing the frontdownward.

Placing the reardownward.

Computer

Modem or otherperipheral

Wall outlet(commercial power)


14


100 VAC input � plug of the unit�� Plug of connected �

device��

Connect it directly. Use the attached 3P-2P �Conversion Plug.��

Attached 3P-2P �Conversion Plug �

Wall outlet �(commercial power)�

Connect the

grounding wire to the grounding terminal equipped to the building. (Grounding �means must be provided if there is none.)

Wall outlet �(commercial power)�

(3) Connect devices you want to back up to the Power Supply Output Receptacles of the unit.

You can connect devices of up to 750 VA (7.5A) or 450W in total.

(4) When the installation and connection are complete, connect the 100 VAC input plug of this unit to a walloutlet (commercial power).

When you connect the 100 VAC input plug of this unit to a wall outlet (commercial power), battery chargingautomatically starts regardless of the on/off state of the Power Switch and charging completes within 12hours.

• Even if the input plug of a device you want to connect is 2-pin type, you can connect itdirectly to the Power Supply Output Receptacle of the UPS. Note that if the input plug is2-pin type with a grounding wire, connect the grounding wire to the Grounding Terminalof the UPS.

• IF you want to use an AC adaptor, connect it to a Power Supply Output Receptacle ofthe UPS with sufficient space for the connection.

● Precautions for grounding connection

The backup function of the unit will not be affected even if you do not ground it, but please note thefollowing:

• Attenuation effect against surge voltage caused by lightning, etc. decreases.

• If connected devices are not grounded, you may get an electric shock due to leak current when youtouch metal parts.

< 3P wall outlet > < 2P wall outlet >

Computer

Modem or other peripheral

A Grounding Terminal is provided for such casesas the AC plug does not provide any groundingmeans.


15


2-3 Checking the operationWhen you are complete with connecting devices to the unit, the backup function must be confirmed.

Check that the Battery Mode is performed normally according to the following procedure.

This operation check simulates a power failure by disconnecting the AC input plug from a wall outlet.)

(1) Turn on the Power Switch of this unit.

The beeper sounds and the Power Output Lamp goes on.

After 5 secounds, the self-diagnostic test is performed in Battery Mode for approximately 3 seconds.

When the self-diagnostic test finishes successfully, switching to 100 VAC output from commercial power isperformed and the following display is obtained.

(If the battery voltage is low, the self-diagnostic test is not performed and the operation starts immediately,using output from commercial power.)

(2) Bring all the connected devices into operation.

(Including devices connected to the AC outlet of your PC.)

Operate the devices in a way in which abrupt power stop does not damage the connected devices, data,etc.

This unit has been charged prior to shipment. However, the backup time becomes shorter when using it forthe first time due to spontaneous discharge. We recommend charging this unit before using it.

(3) Under this condition, check the display lamps and a beep of this unit.

Are they in the same status as shown below?

Are the same as shown above. ➜ The operation is normal. Proceed to (4).Are not the same as shown above. ➜ The operation is abnormal. One of the description in "3. Display

and beep when a failure occurs in equipment" of "4-3 Interpreting abeep and display" on page 21 must apply.Take necessary measures and then proceed to (4).

(4) Disconnect the 100-VAC input plug of this unit from a wall outlet (commercial power).

The UPS enters Battery Mode.

(5) In Battery Mode, check the display lamps and a beep of the unit.

Are the lamps in the same status as A or B below?

　　 (Red) Alarm Off　　 (Green) Power Output On

　　 (Red) Alarm Off(Green) Power Output On

Beep NonePower Supply Output Receptacles Supply power (connected devices are powered).

A B

(Red) Alarm

(Green) Power Output

Beep (when the beep setting is ON)

Beep (when the beep setting is OFF)

Power Supply Output Receptacles

Off

Blinks with an interval of 4 seconds

Beeps with an interval of 4 seconds

None

Supply power.

(Connected devices are powered.)

Off

Blinks with an interval of 1 second

Beeps with an interval of 1 second

None

Supply power.



16


Are the same as shown above. ➜ When A: Operation is normal. The battery is charged sufficiently.➜ When B: Operation is normal, but the battery is not sufficiently

charged.

Are not the same as shown above. ➜ Operation is abnormal. Check the status of lamps and beep andturn off the Power Switch.

• If the display is No.7 or No.8 of "3. Display and beep when afailure occurs in equipment" of "4-3 Interpreting a beep and dis-play" on page 21, take necessary measures and then go backto (1) on page 15.

• If no Battery Mode is performed and the UPS and the connecteddevices stop, insufficient charging of the battery is suspected.

Connect the 100 VAC input plug of the UPS to a wall outlet (com-mercial power), charge the battery for approximately 6 hours,and then go back to (4) on page 15.

• If the problem persists after checking the 2 points above, con-tact us; ____

(6) Connect the 100 VAC input plug to a wall outlet (commercial power) again.The Power Output Lamp stops blinking and turns on without intervals, and the beeper stops.(The status is as shown below.)

Checking the operation is now complete.

Installation and connection is now complete.


Beep None

Power Supply Output Receptacles Supply power (connected devices are powered).


17

3. Preparation for operation

3. Preparation for operation3-1 Charging the batteryWhen you connect the 100 VAC input plug of this unit to a wall outlet (commercial power), the batterycharging automatically starts regardless of the on/off state of the Power Switch, and it is fully chargedwithin 12 hours.

● This unit has been charged prior to shipment. However, the backup time becomes shorter when using it forthe first time due to spontaneous discharge. We recommend charging this unit before using it.

● When you do not perform "3-2 Measuring the initial value of backup time" described next, proceed to "4.Operation."Page 18

3-2 Measuring the initial value of backup time● Before starting operation for the first time, measure the backup time initial value of the unit in your environ-

ment. You can use it as a guide to check the battery.

See also "7. Measuring the backup time" → Page 33

3-3 Recharging the batteryThe battery is discharged completely when the backup time is measured, so you need to recharge it beforeusing the UPS.

● You can use connected devices while recharging the battery, but the backup time when a power failureoccurs is shorter until the battery is fully charged.(If a power failure occurs immediately after the start of charging, backup stops immediately.)See also Charge the battery as described in "3-1 Charging the battery."

Preparation for starting operation is now complete.


18

4. Operation

4. Operation4-1 Precautions and notes on operation

Do not wet or dash water onto the unit.● Doing so may cause an electric shock or a fire.● If you wet the unit, stop using it and the unit must be inspected and/or repaired.


If the battery is dead, replace it immediately or stop using the unit.● Continued use of the unit may cause a fire.● For information on how to check the battery, refer to "5. Maintenance and inspection" on page 25.● For information on how to replace the battery, refer to "5-2 Replacing the battery" on page 26.

Wipe the 100 VAC input plug clean of dirt with a dry cloth occasionally.● Leaving dirt for a long time may cause a fire.

If you notice abnormal sound or smell, smoke, or leakage from the inside,immediately turn off the Power Switch of this unit and disconnect the100-VAC input plug from a wall outlet (commercial power).● Continued use of this unit under such conditions may cause a fire.● If you notice such a condition, never use the unit and contact us; ____ for inspection and

repair.● Use the unit under the conditions in which you can immediately disconnect the 100 VAC input

plug from a wall outlet (commercial power) in the event of the occurrence of an abnormalcondition.

If liquid leaks from this unit, do not touch the fluid.● Doing so may cause blindness and/or burns.● If it contacts your eyes or skin, wash it out with lots of clean water and consult your doctor.

Caution (while in use)

* The values in the table are the expected life under the standarduse conditions and are not the guaranteed values.

Ambient temperature

20°C

30°C

Expected life

4 to 5 years

2 to 2.5 years

NotesBefore turning off the commercial power, turn off the Power Switch of this unit.If you cannot turn off the Power Switch, it is recommended to use the UPSmonitoring software to automatically stop the unit in the minimum backup time.● If you stop commercial power with the Power Switch in the ON position, the Battery Mode starts. If you

frequently use the unit in the Battery Mode after turning off the commercial power, charging and discharg-ing of the battery is repeated and the battery life decreases extremely. The less the amount of chargingand discharging is, the less the adverse effect on the life becomes.

10-chp4-p18-24 03.6.20, 11:11 AMPage 18 Adobe PageMaker 6.5J/PPC

19

4. Operation

ExplanationUsual operation● You may either leave the power switch of the unit on (operation status) or turn it off when shutting down the

connected system. You can choose either of the operation methods for your convenience.● Connecting the UPS to a wall outlet (commercial power) charges the battery.

End of Battery Mode● If a power failure lasts long, the battery discharges and power output from the unit stops. Shut down your

computer after performing appropriate procedure (for example, saving data) while the unit still suppliespower.

Reboot● If the battery discharges completely during a power failure, the unit stops. After the recovery from the power

failure, the unit automatically restarts and resumes power supply. If you do not want to restart connecteddevices, turn off the power switch of either the unit or the connected devices.

4-2 Start and stop procedures and basic operation● When the 100 VAC input plug is connected to a wall outlet and the power switch is

in the OFF position:• All the lamps are turned off.• Power output is stopped.• The battery is charged automatically.

● Start procedure

Operation Turn on the power switch of the UPS.

• The beeper sounds and the Power Output Lamp goes on.• After 5 seconds, the self-diagnostic test is performed in Battery Mode for approximately 3 seconds.

(If the battery voltage is low, the self-diagnostic test is not performed. It is automatically executed afterthe battery is charged.)

• When the self-diagnostic test finishes successfully, switching to 100 VAC output from commercial poweris performed and normal operation starts.

• If the self-diagnostic test is not executed, the UPS immediately starts outputting 100 VAC from commer-cial power.

• During operation, the battery is charged automatically.


Beep NonePower Supply Output Receptacles Supply power (connected devices are powered).


20

4. Operation

● Operation during a power failure• If a power failure or abnormal input power supply occurs, the UPS automatically switches to Battery

Mode, continuing power output from the Power Supply Output Receptacles supplied from the battery.• The Power Output Lamp blinks and the beeper sound continuously to alert the user.

See also The setting switch 3 lets you select ON/OFF of the beeper. Page 24

• If the battery is sufficiently charged, the lamps and beep in the status shown in "A" will be observed.• If the battery becomes weak, the lamps and beep shown in "B" are obtained.• If the battery is discharged completely, power output from the Power Supply Output Receptacles stops

and the lamp display and beeper also stop.

● Operation during recovery from a power failure• If a power failure or abnormal power input is resolved while the UPS supplies power, it returns to the

commercial power output status automatically. Charging the consumed battery starts.• If a power failure or abnormal power input is resolved after the battery is discharged completely and

power output is stopped, the UPS restarts automatically and resumes power output. Charging theconsumed battery starts.

● Stop procedureOperation Turn on the power switch of the UPS.

• The Power Output Lamp goes out and power output from the UPS stops.

• Even if you turn off the power switch, if 100 VAC is supplied from commercial power, the battery isautomatically charged.

A B

(Red) Alarm

(Green) Power Output

Beep (when the beep setting is ON)

Beep (when the beep setting is OFF)

Power Supply Output Receptacles

Off

Blinks at intervals of 4 seconds

Beeps at intervals of 4 seconds

None

Supply power.


Off

Blinks at intervals of 1 second

Beeps at intervals of 1 second

None

Supply power.


　　 (Red) Alarm Off　 (Green) Power Output Off

Beep NonePower Supply Output Receptacles Power output is stopped (connected devices

are stopped).


21

4. Operation

BeepIntermittent

0.5-second intervalShort beep

Continuous

2. Display while testing

No.4

DescriptionSelf-diagnostic test or battery test in process

Display lampAlarm●

Power Supply Output

Remedy

____________

BeepNone

OutputON

ChargingStop

Discharging

4-second interval

5. Display and beep when battery replace occursNo.

9

DescriptionIt has been detected that the battery isweak by the battery test.

Display lampAlarm

Power Supply Output

Remedy

Replace the battery. You can replace itwith an optional spare battery byyourself. Refer to "5. Maintenance andinspection" on page 25.

BeepIntermittent

2-second intervalShort beep

OutputON

ChargingON

2-second interval

3. Display and beep during power failure or abnormal voltage inputNo.

5

6

Description

Operating in Battery Mode because ofpower failure or the input voltage over110V or less than 90V. If operation inBattery Mode is continued, the batteryruns down.(Same as above)Because the battery is weak, output willstop soon.

Display lampAlarm●

Power Supply Output

Alarm

●

Power Supply Output

Remedy

Shut down the connected devices afterperforming shutdown procedure.

(Same as above)

BeepIntermittent

4-second interval(When setting is ON)

Intermittent1-second interval

(When setting is ON)

OutputON

ON

4-second interval

1-second interval

ChargingStop

Discharging

StopDischarging

●

4-3 Interpreting a beep and displayOn Off Blink

1. Display and beep during normal operation

No.1

2

3

Description100 VAC input not supplied.

Operation stopped.

100 VAC input supplied.

Power Switch: OFF.

Power Switch: ON

100 VAC input is normal. In normal operation.

Display lampAlarm

●

Power Supply Output●

Alarm

●

Power Supply Output●

Alarm

●

Power Supply Output

Remedy

____________

____________

____________

BeepNone

None

None

OutputStop

Stop

ON

ChargingStop

ON

ON

Description750VA is exceeded due to too many con-nected devices. Backup will not be per-formed against power failure in this sta-tus. If this status continues longer than 5minutes, it results in the status describedin No.8 occurs and output will bestopped.Stopped because of a unit failure or theconnection capacity exceeded.If the excess of the connection capacityis 120% or more, the unit immediatelyenters the status No.8 instead of No.

4. Display and beep when a failure occurs in equipment

0.5-second interval

No.7

8

Display lampAlarm

Power Supply Output

Alarm

Power Supply Output

●

Remedy

Decrease the number of connecteddevices until the display disappearsand the unit returns to the status No.3.

Turn off the UPS and all the connecteddevices, and turn on only the PowerSwitch of the UPS again. If the AlarmLamp goes on again, the UPS is at fault.Contact us; ____ If the unit goes into thestatus No.3, reduce the number ofconnected devices.

OutputON

ON

Charging

ON

Stop


22

4. Operation

4-4 Suspending a beepYou can suspend a beep by pressing and holding the Beep Stop/Test Switch while a beep is sounding for 0.5second or longer.

You can suspend a beep in the following statuses.

● During Battery ModeWhen the Battery Mode is resumed and the battery goes weak, a beep sounds again.In this case also, you can suspend a beep.

● When a failure occurs in equipment (the Alarm Lamp is on)● When battery replacement is required (the Alarm Lamp blinks at intervals of 2 seconds)

You cannot suspend a beep when connection capacity is exceeded.Take necessary countermeasures according to the remedy of No.7 in "4. Display and beep when a failureoccurs in equipment" on page 21.

4-5 Description of the self-diagnostic test functionYou can use the following procedure to check whether a failure occurs inside the UPS and whether replacingthe battery is required.

If the battery is not fully charged, the self-diagnostic test is not executed immediately.After charging is complete, it is automatically executed.

(1) Connect your computer and other devices to the UPS and then turn on the power switch of the UPS.

(2) Press and hold the Beep Stop/Test Switch of the UPS for 0.5 second or longer.

Release the Beep Stop/Test Switch when a beep sounds. The Battery Mode starts for testing purpose. (Nobeep sounds.) When the test is complete, the normal operation automatically starts.

(3) If the Alarm Lamp blinks and the beeper sounds:See also "4-3 Interpreting a beep and display" ➛ Page 21

Take necessary countermeasures according to the remedy in "4. Display and beep when a failure occursin equipment." or "5.Display and beep when battery replace."


23

4. Operation

4-6 Description of the auto battery test functionThis UPS provides functions to automatically check whether replacing the battery is required and whether theinternal circuit is at fault. (You do not have to perform any operation.)

The test is performed at intervals of 4 weeks after the AC Input Plug is connected to a wall outlet (commercialpower). If you disconnect the AC Input Plug from a wall outlet (commercial power) when the Power Switch ofthe UPS is OFF, the 4-week timer is reset. If the Power Switch is OFF, the test is not performed.

(1) When the auto battery test starts, the Battery Mode automatically starts. (No beep sounds.) After the autobattery test is complete, the normal operation automatically starts.

(2) If the Alarm Lamp blinks and the beeper sounds:

See also "4-3 Interpreting a beep and display" ➛ Page 21

Take necessary countermeasures according to the remedy in "4. Display and beep when a failure occursin equipment." or "5.Display and beep when battery replace."

The setting switch on the rear of the UPS allows you to select the "disable the auto battery test" setting.

See also "4-7 Changing the setting of the functions" ➛ Page 23See "●Auto battery test ON/OFF setting."

4-7 Changing the setting of the functions1. Selecting functions with the setting switchesOperation After changing the setting switches, turn on the Power Switch again.

• Otherwise, the change will not take effect.

● Power output stop delay time setting (setting switches 1 and 2 ) … Factory-shipped setting: ON and ONWhen the UPS Stop Signal is received, the UPS stops after a specified time period has elapsed.

(1) When you perform shutdown processing for Windows ME using "PowerCredit" the UPS monitoringsoftware you can purchase separately, set the delay time.

See also When performing the auto shutdown processing by the UPS monitoring software ➛ Page 37

(2) When you perform shutdown processing using the UPS management software of Windows NT or using"PowerCredit" the UPS monitoring software for Windows 98/95, set the switches to ON and OFF (nodelay time).

See also When performing the auto shutdown processing by WindowsNT's UPS management software

➛ Page 39

See also When performing the auto shutdown processing by the UPS monitoring software

➛ Page 37


24

4. Operation

(3) When you perform auto shutdown processing using the UPS management software of Windows XP/2000,set the delay time.

See also When performing the auto shutdown processing by Windows XP/2000's UPS managementsoftware ➛ Page 38

● Beeper ON/OFF setting (setting switch 3 ) … Factory-shipped setting: ON

ON: The beeper sounds when an alarm is necessary.

OFF: The beeper does not sound when the Battery Mode starts. When the Alarm Lamp (red) goes onor blinks (excess of connection capacity, battery replacement, abnormal operation, and so on),the beeper sounds.

● UPS Stop Signal setting (setting switch 4 ) … Factory-shipped setting: ON

ON: You can stop power output from the UPS by inputting the UPS Stop Signal (HIGH) that lasts atleast 0.01 second (10 ms). The Stop Signal is accepted only in the Battery Mode to stop poweroutput.After the output is stopped, when abnormal power such as a power failure is resolved, the UPSautomatically restarts.If you do not want to stop the UPS in Commercial Power Mode even if the UPS Stop Signal isinputted, use this setting.

OFF: You can stop power output from the UPS by inputting the UPS Stop Signal (HIGH) that lasts atleast 10 seconds. Voltage signal input stops power output even in Commercial Power Mode.

After the output is stopped, if commercial power is normal, the UPS automatically restarts.

● Auto battery test ON/OFF setting (setting switch 5 ) … Factory-shipped setting: ON

ON: The battery test is automatically executed at intervals of 4 weeks.

OFF: The auto battery test is disabled.If you want to disable Battery Mode for the test performed regularly, use this setting.

Setting switch 1 Setting switch 2 Power output stop delay timeOFF OFF Does not stop power output.ON OFF 0 secondOFF ON 60 secondsON ON 120 seconds

ON1 2 3 4 5

ON1 2 53 4

ON1 2 53 4

ON1 2 53 4


25

5. Maintenance and inspection

5. Maintenance and Inspection

When maintaining connected equipment, turn off the Power Switch of thisunit to stop it.● Even if you disconnect the AC Input Plug while the UPS is operating, the power output of the

BX75XS2 is not stopped and 100 VAC is supplied from the outlet.


If liquid leaks from this unit, do not touch the fluid.● Doing so may cause blindness or burns.● If it touches your eyes or skin, wash it out with lots of clean water and consult your doctor.

Do not discard this unit into fire.● The lead battery in this unit may explode or dilute sulfuric acid may leak.

5-1 Checking the batteryThe sealed lead battery used in the UPS has its life.(The life varies depending on your storage/use environment and backup frequency.)The nearer the end of the life is, the more rapidly deterioration proceeds.• Although you can judge the life by the auto battery test (page 23), if you want to judge it more accu-

rately, check the battery following the procedure below.

1. Life of battery (estimated replacement timing)

2. Method to check the batterySee also Measure the backup time according to "7-1 Measuring method of the backup time."

➛ Page 33

If the measured value is equal to the "initial value of the backup time" or less than half the value obtainedfrom the graph of "Estimated backup time" on page 35, replace the battery.

• When you compare the "initial value of the backup time" you measured and the current backup time,make the capacity of devices connected to the UPS same as when you measured the initial value tomake judgment accurately.

3. Guideline on the frequency of checking the batter (measuring the backup time)

* The battery deteriorates even if it is stored. The higher the temperature is, the shorter thelife becomes.

Caution (maintenance and discarding)

Ambient temperature

20°C

30°C

Life of battery

4 to 5 years

2 to 2.5 years

Replacement estimation

4 years after staring use

2 years after staring use

Ambient temperature

20°C

30°C

Check at intervals of 6 months

Until 3 years from purchase

Until 1.5 years from purchase

Check at intervals of 1 month

From after 3 years

From after 1.5 years


26


5-2 Replacing the batteryYou can change the battery of the UPS by yourself.

* When replacing the battery, stop the connected devices, turn off the Power Switch of the UPS, anddisconnect the 100 VAC Input Plug from the wall outlet.If the display and beep for "battery replacement" are output, stop them when turning off the PowerSwitch.

Risk of electric shock.● Battery circuit is not isolated from ac input, hazardous voltage may exist between battery

terminal and ground. Test before touching.

Perform replacement on a stable, flat place.● Not doing so could cause injury due to falling or burns due to leak of liquid (acid).● Hold the battery securely with your both hands not to drop it.

Do not use a replacement battery other than specified.● Doing so may cause a fire.● Product model: BP75XSX (battery pack for BP75XS2)

Do not replace the battery in a place where there is flammable gas.● Sparking may occur when connecting the battery, which may cause an explosion or fire.

If liquid (dilute sulfuric acid) leaks from the battery, do not touch it.● Doing so may cause blindness or burns.● If it touches your eyes or skin, wash it out with lots of clean water and consult your doctor.

Do not disassemble or modify the battery.● Doing so could cause leak of dilute sulfuric acid, which could cause blindness and burns.

Do not drop the battery or do not give strong impact on it.● Dilute sulfuric acid may leak.

Do not short the battery with metal objects.● Do not insert metal objects into the Battery Connection Connector. Doing so could cause an

electric shock, fire or burn.● Doing so may cause burns or a fire.● Some electrical energy remains inside the battery even if it is exhausted.

Do not put the battery into fire or do not break it.● The battery may explode or dilute sulfuric acid may leak.

Caution (battery replacement)

NotesRecycling and Discarding the BatteryThe UPS uses a lead acid battery. It is recyclable, precious resources. Please recycle itwhen you replace it or discard the produce you do not use any more. Pb


27


Procedure to replace the battery● Preparation(1) Prepare the BP75XSX spare battery pack you can purchase separately.

(2) If you place the UPS horizontally and put a heavy object such as CRT on it, put it down until you finishreplacement.

● Replacing the battery(3) Turn the 2 screws on the front panel of the UPS counterclockwise to remove them.

Pull the front panel towards you to remove it.

Turn the 2 screws to remove them. Remove the front panel.

(4) Pull out the Batter Connector while pushing its hook.

Slide the metal cover towards you to remove it.

Pull out the connector while pushing its hook. Slide the font metal cover to remove it.

(5) Hold the label stuck to the battery pack and remove it.

Insert the new battery pack.

Pull out holding the label. Insert the new battery pack.

● If liquid (dilute sulfuric acid) leaks from the battery do not touch the fluid.Do not make the batter pack upside down.• Doing so could cause burns and, if it is put into your eye, blindness.• If the liquid touches your eyes or skin, wash it out with lots of clean water and consult your doctor.• Just put the spare batter pack into the packaging plastic bag and seal it with tape.

● Do not drop the battery pack.• If you see red tape stuck on the top of the battery pack, you can remove the battery completely by

pulling it 10 cm further.Hold the battery securely not to drop it.

● Do not remove the battery by holding the cables.

Caution


28


(6) Insert and slide the metal cover to secure it.

Connect the Battery Connector. After connection, pull the connector lightly to make sure it is not discon-nected.

When you connect the battery pack to the UPS, you may hear a short sound but it is notabnormal.

(7) Fit the front panel.

Turn the 2 screws to secure the font panel clockwise with a screwdriver.

Fit the front panel. Tighten the 2 screws.

< Procedure after replacement of the battery >Connect the 100-VAC Input Plug to a wall outlet (commercial power) and turn on the Power Switch ofthe UPS. When operation starts, the self-diagnostic test is executed automatically. After approximately3 seconds, when the test is complete, the normal operation resumes.

Battery replacement is now completed.

Write the date of replacement on the label on the side of the UPS.

Fit and slide the metal cover tosecure it.

Connect the Battery Connector.

After connection, pull the connectorlightly to make sure it is not discon-nected.


29


5-3 Cleaning● Cleaning the UPS

Wipe the UPS lightly by tight squeezed soft cloth soaked with water or detergent

Do not use chemicals such as thinner and benzene. (They cause deformation or discoloration.)

● Removing dust from the Power Plug• Turn off connected devices and the Power Switch of the UPS.

• Disconnect the 100 VAC Input Plug from a wall outlet (commercial power) and remove dust around theplug with a dry cloth.

• Disconnect the AC plugs of the connected devices from the UPS and clean them also.

• Connect the AC plugs of the connected devices to the UPS again, and connect the 100 VAC Input Plugof the UPS to a wall outlet (commercial power).

(For information on the connection procedure:)

See also "2. Installation and connection" ➛ Page 10


30

6. Using the Contact Signal

6. Using the Contact SignalYou can develop your unique system based on the following specifications to automate the process at thepower failure.

Your can perform power-failure or closing procedure of the system by detecting the Backup Signal and theBattery Low Signal, or receive failure notification by detecting the Trouble Signal.

You can stop the UPS by inputting the UPS Stop Signal from the system, and remote control start and stop ofthe UPS by using the Remote ON/OFF Signal.

1. Signal outputThe UPS has 4 kinds of output signals. The output circuit consists of an open collector circuit using a photocoupler (a kind of electronic switch).

● Backup Signal output: BUBackup Signal reverse output: BUBU stays ON (BU OFF) during a power failure.

● Battery Low Signal output: BLGoes ON when the battery becomes weak during theBattery Mode.

● Trouble Signal output: TRGoes ON when an internal failure of the UPS occurs.

2. Input of the UPS Stop Signal (BS)Stops the output of the BX75XS2 after the time period specified by the "power output stop delay timesetting" (setting switches 1 and 2 ) has elapsed.

(1) When the "UPS Stop Signal setting" (setting switch 4 ) is set to OFF:

You can stop the output of the BX75XS2 by inputting the voltage signal (HIGH) that lasts at least 10seconds from the outside.

(2) When the "UPS Stop Signal setting" (setting switch 4 ) is set to ON:

You can stop power output by inputting the voltage signal (HIGH) that lasts at least 0.01 second (10ms) from the outside that is accepted only during backup.

See also "4-7 Changing the setting of the functions" ➛ Pages 23 and 24

3. Remote ON/OFF SignalYou can start and stop the UPS depending on the contact connectedto the outside and the ON/OFF status of the open collector circuit.To use this function, turn on the Power Switch of the UPS.

4. Connection to the systemPlease make a cable to connect to the system by yourself.

See also "8. Example of the use of the Contact Signal circuit" ➛ Page 33

BU-COM ON when a power failure occurs

BU-COM OFF when a power failure occurs

External contact Operate

Open Start

Close Stop

BL-COM ON when the battery is low

TR-COM ON when a power failure occurs

BS-COM ON when a failure occurs

31


5. Contact Signal Connector (female DSUB9P)

6. Contact Signal ratings● Signal output (BU, BU, BL, and TR) ● BPS Stop Signal input (BS)

Photo coupler ratings Input voltage HIGH 5 to 15 VDC

Appliable voltage: 35 VDC or less LOW 0.7 VDC or less

Maximum current: 10 mA

● Remote ON/OFF

Voltage between terminals: 5 VDC

Current when closed: 10 mA

7. Contact Signal circuit inside the UPS

Front viewScrew size: inch screw

#4-40 UNC

Pin assignment Pin number Signal name1 TR2 BU3 BU4 COM5 BL6 BS7 COM8 Remote ON/OFF (+)9 Remote ON/OFF (--)

5　 4　 3　 2　 1

9　 8　 7　 6

BU

BU

BL

BS

COM

3.3V 1kW

TR

Remote ON (+)

Remote OFF (-)

5V

32


8. Example of the use of the Contact Signal circuit

● Example of the use of the BU signal

● Example of the use of the BS signal

9. Precautions and notes on the use of the Contact Signal

BU

COM

12V １Ｋ Ω

System side

To port on PCConnecting cable

(twisted or shielded)

UPS side

TLP627

GND

BS

COM

System side

Ｃ２４５８

１２Ｖ１Ｋ Ω

１.２Ｋ Ω

ＴＬＰ５２１

To port on PC

Connecting cable (twisted or shielded)

UPS side

Notes● When connecting a device that generates counter electromotive force to the signal output circuit

such as a relay, connect diodes to prevent counter electromotive force at the both end of therelay.

Explanation● When power recovers after automatic stop of UPS at a power failure, the UPS automatically

restarts and supplies power. If you do not want to start the connected devices, turn off theirswitch in advance.

33

7. Measuring the backup time (checking the discharge time of the battery)

7. Measuring the backup time(Checking the discharge time of the battery)

7-1 Measuring method of the backup time(1) Connect the 100 VAC Input Plug of the UPS to a wall outlet (commercial power) and charge it for approxi-

mately 12 hours.If you operate the UPS for 12 hours or more, it is charged. If a power failure occurred during this period,charge it again.

(2) Turn on all devices connected to the power output of the UPS.(Including devices connected to the AC outlet of your computer.)Operate them in a way in which it is allowable that power supply to the connected devices stops.

● For Windows XP/Me/2000 or Windows NT:

To be performed in case of hard drive stops.

● For Windows 98/95:

Choose Shut Down of Windows and follow the procedure below to shut down your OS.

Choose "Restart in MS-DOS mode" to exit from OS and display the MS-DOS mode screen.

(3) Disconnect the 100 VAC Input Plug of the UPS and measure the backup time.

Measure the time until the UPS automatically stops and all displays disappear with the plug disconnected.

* The backup time you measure for the first time after purchase is the "initial value of the backup time."

7-2 Estimated backup timeThe backup time varies depending on the capacity of connected devices.After calculating the total capacity of connected devices, refer to the graph of the backup time to obtain anestimation of the initial value of the backup time. (This is also applied to checking the battery.)(1) Unify the total capacity (power consumption) of connected devices to W (Watt).

For the indication of connected devices, check your computer and the rear of the display.There are 3 types of indication: VA (Volt·Ampare) indication, A (Ampare) indication, and W indication.

Example 1) 100 VAC, 50/60Hz, 145 W

Example 2) 100 VAC, 50/60Hz, 1.8 A

Example 3) 100 VAC, 50/60Hz, 150 VA

For devices that use the VA or A indication, convert the capacity into W. Multiply the value indicated ondevices by the value in the right table for conversion.

(2) Add the values converted into W to obtain the total capacity of the connected devices.

Indication Value

VA × 0.6 = W

A × 60 = W


34

7. Measuring the backup time (checking the discharge time of the battery)

(3) Calculate the initial value of the backup time for the total capacity of the connected devices from the graphbelow.

● Graph of backup time (initial value for product that has not been used)● The smaller the capacity of connected devices becomes, the longer the backup time becomes.● The maximum backup time is 90 minutes even if a power failure occurs without load.

(Output is stopped when 90 minutes elapse.)

45 225 450 (W: value in watt)�

(minutes)Maximum of 90 minutes

(%)50 100

Connection capacity (total capacity)

Bac

kup

time�

�

00

10

20

30

40

50

60

5 minutes

�


35

8. Troubleshooting

The UPS does not operates.Although you connect the100 VAC Input Plug of theUPS to a wall outlet(commercial power) and turnon the Power Switch, thePower Supply Output Lamp(green) does not go on.

Backup is not possible.The computer stops when apower failure occurs.

Backup is performed toofrequently.Frequent switching isperformed although a powerfailure does not occur.You hear the sound ofswitching.

The display is abnormal.● The display is unstable.● White lines occur.● Noise increases.

The Alarm Lamp blinks atintervals of 2 second.

The Alarm Lamp blinks atintervals of 0.5 second.

The Alarm Lamp is turnedon.

The output voltage is onlyapproximately 80 V whenmeasuring it with a tester.

8. TroubleshootingProblem

1. Check that the AC Input Plug is connected to the commercial power securely.2. The AC Input Overcurrent Protection worked and opened.

(If the black button is popped up, it is suspected that there are too many connecteddevices or there is a short in connected devices.) Disconnect all of the connecteddevices, push in the AC Input Overcurrent Protection Black Button, and turn on thePower Switch of the UPS again. If the normal operation display does not go on, the UPSis at fault. (See "Interpreting a beep and display" on page 20.)

3. Isn't the voltage of the wall outlet (commercial power) too low?Stop devices that consume a lot of power such as an air conditioner. Check the UPS, forexample, by connect it to a wall outlet (commercial power) in another room or house.(It does not operate when the voltage is less than 90 V.)

Isn't charging insufficient?Perform the test after charging the battery for at least 12 hours.You can charge the battery by connecting the 100 VAC Input Plug of the UPS to a walloutlet (commercial power).)

1. The input power supply may be at fault. Connect the UPS to a wall outlet (commercialpower) in another room or, if possible, another house and check it. Or, stop large devicessuch as a cooler.

2. Isn't a page printer connected?Because large current flows instantaneously in printers, normal backup is not possible.

1. The UPS generates some noise when performing backup. For displays susceptible tonoise, distortion or white lines may occur, but the UPS is not at fault.

2. Grounding the UPS, computer, and display may improve this problem.3. Noise during backup may become larger depending on connected devices, you can

continue to use the UPS because this occurs due to rectangular wave output.

The battery is judged to be dead in the auto battery test or the self-diagnostic test.Battery Mode cannot be performed and therefore replace the battery pack.

There are too many connected devices. Decrease the number of connected devices untilthis lamp goes out and then use the UPS.

Because the status in which too many devices are connected lasted 3 minutes or longer or120% was exceeded, the UPS stopped immediately.When you turn on the Power Switch of the UPS again, if the Alarm Lamp blinks at intervalsof 0.5 second, decrease the number of connected devices and then use the UPS.If the Alarm Lamp blinks again, the circuit is at fault. The UPS needs repair. Please contactus; ____

The UPS outputs a special rectangular wave during the Batter Mode. Due to itscharacteristics, simple testers indicates approximately 80 V. The UPS is not at fault. Tomake correct measurement, you need a voltmeter that can measure "true rms value."

Check and remedy


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9. Description of related products

9. Description of related products9-1 Using the Network Line Surge Protection FunctionUsing the optional BT75XSX, you can protect your modem, TA, and network card from damage due to surge byabsorbing surge voltage (abnormally high voltage) that may occur on the telephone line, ISDN line or networkcable due to thunder.

* If you do not use the Network Line Surge Protection Function, this section is not required.

The following 2 types of connectors are available for the Network Line Surge Protection Function.

- RJ45 (8 Pins) - RJ11 (2 Pins, 4 Pins, or 6 Pins)

1. When connecting to the telephone lineConnect the telephone line that comes out of the wall to the Line/Hub Side of the Network Line SurgeProtection of the UPS.Use the telephone cable (modular cable) attached to the BT75XSX to connect between the Modem/TA/PCSide of the Network Line Surge Protection of the UPS and your modem, FAX and so on.

2. When connecting to the ISDN lineConnect the ISDN line that comes out of the wall to the Line/Hub Side of the Network Line Surge Protectionof the UPS.Use the telephone cable (modular cable) attached to the BT75XSX to connect between the Modem/TA/PCSide Jack of the Network Line Surge Protection of the UPS and your DSU (or terminal adaptor with built-inDSU).

3. When connecting to LAN 10Base-T/100 Base-TxTo protect your 10Base-T/100 Base-Tx (twisted pair cable without shielding) network interface, you need toseparately purchase a cable equivalent to your cable in use. Connect the 10Base-T/100Base-Tx cable fromthe HUB to the Line/Hub Side of the Network Line Surge Protection of the UPS. Connect between the Mode/TA/PC Side of the Network Line Surge Protection and the network interface of your computer with the cableyou purchased separately.

NotesDo not reverse the connection of Line/Hub Side and Modem/TA/PC Side of theNetwork Line Surge Protection.● If a failure of the protection circuit occurs, the ISDN line and so on may be damaged.


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9-2 Using the UPS monitoring software* If you do not use the UPS monitoring software, this section is not required.

1. When performing the auto shutdown processing by the UPS monitoring software,PowerCreditUsing the optional UPS monitoring software along with the UPS allows you to automatically protect datafiles and perform shutdown processing of your computer when a power failure occurs.

For more information on connection, installation, and settings for use, refer to the Instruction Manual andonline help of the UPS monitoring software.

The optional UPS monitoring software supports Japanese environment only.

● ConnectionFor DOS/V PC-98NX Series ... Use the connecting cable attached to PowerCredit.Connect the connecting cable between the Contact Signal Connector of the UPS and the serial port onyour computer.

● When using under Windows 98/95:◆ Configuring the setting switchesSpecify "0 seconds" as the power output stop delay time setting (setting switches 1 and 2 ).

● When using under Windows Me:◆ Configuring the setting switchesSpecify "60 seconds," "120 seconds," or "Does not stop power output" as the power output stop delaytime setting (setting switches 1 and 2 ).Specify one of the time settings longer that the time required to shut down the OS for the devicesconnected to the UPS (time from when shutting down the OS starts to when the computer automaticallystops so that the power can be stopped).

ON1 2 3 4 5

Example when specifying60 seconds

Setting switch 1 Setting switch 2 Power output stop delay timeOFF ON 60 secondsON ON 120 secondsOFF OFF Does not stop power output

ON1 2 3 4 5

Setting switch 1 Setting switch 2 Power output stop delay timeON OFF 0 seconds

Modem, FAX, or LAN card

Connect to the Line/HUB Side

Connect to the Modem/TA/Network Card Side

Telephone line, ISDN line, or 10Base-T


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• If shutting down the OS takes 120 seconds or longer, specify "Does not stop power output."In this case, the UPS does not stop automatically, so, if a power failure continues after shutting down theOS, stop the UPS with its Power Switch.

2. When performing the auto shutdown processing by Windows XP/2000's UPSserviceUsing the connecting cable attached to optional PowerCredit along with the dedicated driver software, youcan use Windows XP/2000's standard UPS management software.

● ConnectionFor DOS/V PCs .... Use the connecting cable attached to PowerCredit.Connect the connecting cable between the Contact Signal Connector of the UPS and the serial port onyour computer.

◆ Configuring the setting switchesSpecify "60 seconds," "120 seconds," or "Does not stop power output" as the power output stop delaytime setting (setting switches 1 and 2 ).Specify one of the time settings longer that the time required to shut down the OS for the devicesconnected to the UPS (time from when shutting down the OS starts to when the computer automaticallystops so that the power can be stopped).

• If shutting down the OS takes 120 seconds or longer, specify "Does not stop power output."In this case, the UPS does not stop automatically, so, if a power failure continues after shutting down theOS, stop the UPS with its Power Switch.

ExplanationIf AC power is recovered during shutdown processing● IAfter the shutdown processing finishes and the computer stops, do not restart it even if commercial

power is recovered.Wait until the UPS makes a complete stop of output and then restart the computer.

(When the time specified as "Power output stop delay time setting" has elapsed, the UPS stops output.)

If you start the computer before the UPS stops, the computer stops during operation.

Notes● When using under Windows XP/2000, you need to install the dedicated driver software.

The dedicated driver software is attached to optional PowerCredit.You can download it from our Web site.(http://www.omron.co.jp/ped-j/index.html)For information on installation, see the installation manual attached to the driver.

Setting switch 1 Setting switch 2 Power output stop delay timeOFF ON 60 secondsON ON 120 secondsOFF OFF Does not stop power output

Example when specifying120 seconds

ON1 2 3 4 5


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3. When performing the auto shutdown processing by WindowsNT's UPSmanagement softwareUsing the cable attached to optional PowerCredit, you can use Windows NT's or NetWare’s standard UPSmanagement software.

● Connection

For DOS/V PC-98NX Series ... Use the connecting cable attached to PowerCredit.Connect the connecting cable between the Contact Signal Connector of the UPS and the serial port onyour computer.

● Configuring the setting switches

Specify "0 seconds" as the power output stop delay time setting (setting switches 1 and 2 ).

Setting switch 1 Setting switch 2 Power output stop delay timeON OFF 0 secondsON

1 2 3 4 5

Notes● When using a Windows NT server, make the following setting from server's menu.

Special care must be taken to set the remote UPS shutdown because backup at a power failure is notavailable if set incorrectly.For more information, refer to the "Setting UPS" page in the Windows NT4.0's manual or the help file ofWindows NT4.0.The signal settings are as follows:

Power Supply Stop Signal: Negative (the default is negative)Battery Capacity Low Signal: Negative (the default is negative)Remote UPS Shutdown: Positive (the default is negative)

● When using NetWare, call the command input screen and enter the following to load the UPS moduleonto the file server.

LOAD UPS TYPE=6 PORT=__ REV=2

After typing, press Enter.

After PORT=, enter the number of the serial port to which the UPS is connected. (1 or 2)


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Reference

ReferencesA. Specifications

B. Related products● Spear battery pack (option for BP75XS2)

Please purchase a spare battery pack when replacing batteries.

Model of spare battery pack: BP75XSX

● Network line surge protection kit (option for BP75XS2)Model of network line surge protection kit: BT75XSX

● UPS monitoring software "PowerCredit" (option for BP75XS2)Model of UPS monitoring software: PC-75

Outside dimensionsWeight of UPSInternal power consumption (max)

Method

Input

Output

Battery

Environment

Operation methodDevices that can be connectedAllowable voltage rangeFrequencyMaximum currentWaveformAllowable connection capacityVoltagePower failure switching timeBackup timeTypeCharging timeOperating ambient temperatureOperating ambient humidity

Full-time commercial power supply methodComputer, display, and peripherals100 VAC±10%50/60Hz±4Hz12ARectangular wave (during backup)750VA/450W100 VAC±10% (in Battery Mode)10 msec or lessFrom 5 minutes up to 90 minutes (initial characteristic at 20°C)Compact sealed lead battery12 hours0 to 40°C (during operation)/-15 to 40°C (during storage)25 to 85%RH (during operation)/10 to 90%RH (during storage)W 90 mm × D 287 mm × H 278 mm (±1 mm)7.7 kg15 W

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Reference

C. Dimensional outline drawing (unit: mm)

90

287

278


42

Reference

Charging circuit

Input Overcurrent Protection100 VAC Input Plug

Power Supply Output Receptacle

Power Switch

Commercial Power Mode

Battery Mode

DC/AC converterBattery

Invertercircuit

ON

D. Circuit block diagramThis UPS outputs power input from commercial power as it is and charges the battery at the same time. If apower failure or voltage variation occurs, the UPS automatically switches to operation using the battery andcontinues power output. At this time, the beeper sounds intermittently. When the power is recovered, normaloperation using commercial power is automatically recovered. (The beeper stops.) You do not have to performany operation.


No part or whole of this manual may be reproduced without permission.The contents of this manual are subject to change without notice.

OMRON CorporationBX75XS2-UL-A

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instruction manual...this manual contains important instruction for model bx75xs2. that should be...

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