Uninterruptible Power Supply (UPS) BX75XS2 Instruction Manual This manual gives you important information to use the BX75XS2 safely and therefore be sure to read it before installation and use. Keep this manual handy at the place where you install the BX75XS2 so that you can read it whenever necessary.
Introduction 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 voltage 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. 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 transportation systems, 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, such as 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/regulations. For power supply, use a commercial power of AC100V (50Hz/60Hz). 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. OMRON Corporation. 2002 All Rights Reserved.
IMPORTANT SAFETY INSTRUCTION 1. 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. ENVIRONMENT The unit is intended for installation in a temperature controlled, indoor area free of conductive contaminants. 1
Table of Contents Table of Contents Introduction IMPORTANT SAFETY INSTRUCTION... 1 Safety precautions... 3 1. Preparation... 9 1-1 Checking the contents... 9 1-2 Name of each part... 9 1-3 Explanetion of symbol used on unit... 9 2. Installation and connection... 10 2-1 Precautions and notes on installation and connection... 10 2-2 Installation and connection... 13 2-3 Checking the operation... 15 3. Preparation for Operation... 17 3-1 Charging the battery... 17 3-2 Measuring the initial value of backup time... 17 3-3 Recharging the battery... 17 4. Operation... 18 4-1 Precautions and notes on operation... 18 4-2 Start and stop procedures and basic operation... 19 4-3 Interpreting a beep and display... 21 4-4 Suspending a beep... 22 4-5 Description of the self-diagnostic test function... 22 4-6 Description of the auto battery test function... 23 4-7 Changing the setting of the functions... 23 5. Maintenance and inspection... 25 5-1 Checking the battery... 25 5-2 Replacing the battery... 26 5-3 Cleaning... 29 6. Using the Contact Signal... 30 7. Measuring the backup time (checking the discharge time of the battery)... 33 7-1 Measuring method of the backup time... 33 7-2 Estimated backup time... 33 8. Troubleshooting... 35 9. Description of related products... 36 9-1 Using the Network Line Surge Protection Function... 36 9-2 Using the UPS monitoring software... 37 References... 40 A. Specifications... 40 B. Related products... 40 C. Dimensional outline drawing (unit: mm)... 41 D. Circuit block diagram... 42 2
Safety precautions Safety precautions Important information for safe operation is described. Be sure to read it before installation and start of use. The safety symbols and their meaning used in this manual are as follows: Warning Caution Misuse may cause death or serious injury. Misuse may cause injury or property damage. * Property damage means damage to houses/household effects, livestock, and pets. : Indicates prohibition. For example, indicates that disassembly is prohibited. : Indicates obligation. For example, indicates that grounding is necessary. Note that events categorized as a caution required matter also may cause more serious results under certain conditions. Warning Do not use this product when very high reliability and safety are required as listed below. (This product is designed and manufactured for use for OA 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. Carry the unit considering its weight and balance, and place it on a stable and 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. Caution (for installation and connection) Be sure to connect the input plug of the unit to a wall outlet (commercial power) of 100VAC (50/60Hz). Connecting it to a wall outlet (commercial power) of a different voltage may cause a fire. The unit may fail. 3
Safety precautions Connect the unit to a wall outlet (commercial power) with a current capacity larger 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 wall outlet (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 than 25kg. 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 vibration 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. Caution (for installation and connection) 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. For repair, contact us; 4
Safety precautions Caution (for installation and connection) This UPS utilizes voltages that may be hazardous. Do not attempt to disassemble the unit The unit 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 receptacle 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 any other liquid-containing vessels on or near the unit. This unit intended for installation in a controlled environment (temperature controlled, indoor area free of conductive contaminants).avoid installing the UPS in locations where there is standing 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-support equipment,microwave ovens,or vacuum cleaners to UPS With the installation of the equipment it should be prevented, that the sum of the leakage current of the UPS and the connected consumer does not exceed 3.5mA. Caution (for use) 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. For repair, contact us; When the battery is dead, replace it immediately or stop using the unit. Continuing the use of it may cause a fire. Ambient temperature 20 C 30 C Expected life 4 to 5 years 2 to 2.5 years * The values in the table are the expected life under standard use conditions and are not guaranteed. 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 input plug 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. 5
Safety precautions Caution (for maintenance and discarding) 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. Do not disassemble, repair, or modify the unit. Doing so may cause an electric shock or a fire. 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. 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 following precautions 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. 6 Caution (for battery replacement)
Safety precautions Caution (for battery replacement) Servicing of batteries should be performed or supervised by personnel knowledgeable of batteries and the required precautions. Keep unauthorized personnel away from batteries. Notes When moving the unit from a cold place to a warm place, leave it for several hours before 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 power switch. 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 Output Receptacle 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 power failure 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. 7
Safety precautions Notes 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 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 monitoring software 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 battery life decreases extremely. The less the amount of charging and discharging is, the less the adverse effect on the life becomes. Notes Recycling 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 Explanation Usual 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 recommend 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 (commercial power). 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. 8
1. Preparation 1. Preparation 1-1 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. Instruction Manual Warranty card User registration card 85 200 Lavel 1-2 Name of each part Rubber feet 3P-2P conversion plug Front view Rear view Power Switch Beep Stop/Test Switch Alarm Lamp (red) Power Output (green) Setting Switch Contact Signal Connector Battery Replacement Cover Grounding Terminal 100VAC Input Cord and Plug Network Surge Protection (Option) Power Supply Output Receptacle AC Input Overcurrent Protection 1-3 Explanetion of symbol used on unit Symbol 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. 9
2. Installation and connection 2. Installation and connection 2-1 Precautions and notes on installation and connection Caution (for installation and connection) Carry the unit considering its weight and balance and place it on a stable and 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. For repair, contact us; 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 (commercial power) 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 capacity larger 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 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 wall outlet (commercial power). Grounding is necessary to enable its surge protection function. For repair, contact us; 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 than 25kg. Doing so may cause distortion of/damage to the case, which may cause a fire. 10
2. Installation and connection Caution (for installation and connection) 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 vibration 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. For repair, contact us; Notes When moving the unit from a cold place to a warm place, leave it for several hours before 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. 11
2. Installation and connection Notes Do not connect the 100 VAC input plug of the unit to its Power Supply Output Receptacle 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 power failure 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. 12
2. Installation and connection 2-2 Installation and connection Connection to back up your computer and peripherals (1) Disconnect all AC input plugs of your computer and peripherals from a wall outlet (commercial power). Wall outlet (commercial power) Computer (2) Install the unit. Modem or other peripheral Write the date of starting use on the label on the side. Do not use this unit in an orientation other than the correct ones shown in the figure below. Vertical Correct installation orientation Horizontal * Stick the attached rubber feet in the 4 corners on the bottom surface. Wrong installation orientation Placing the front downward. Placing the rear downward. Placing the left side downward. 13
2. Installation and connection (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. Computer Modem or other peripheral A Grounding Terminal is provided for such cases as the AC plug does not provide any grounding means. Even if the input plug of a device you want to connect is 2-pin type, you can connect it directly to the Power Supply Output Receptacle of the UPS. Note that if the input plug is 2-pin type with a grounding wire, connect the grounding wire to the Grounding Terminal of the UPS. IF you want to use an AC adaptor, connect it to a Power Supply Output Receptacle of the UPS with sufficient space for the connection. (4) When the installation and connection are complete, connect the 100 VAC input plug of this unit to a wall outlet (commercial power). When you connect the 100 VAC input plug of this unit to a wall outlet (commercial power), battery charging automatically starts regardless of the on/off state of the Power Switch and charging completes within 12 hours. < 3P wall outlet > < 2P wall outlet > Wall outlet (commercial power) Connect it directly. 100 VAC input plug of the unit Precautions for grounding connection 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.) Use the attached 3P-2P Conversion Plug. Attached 3P-2P Conversion Plug Plug of connected device The backup function of the unit will not be affected even if you do not ground it, but please note the following: 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 you touch metal parts. 14
2. Installation and connection 2-3 Checking the operation When 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 is performed 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.) (Red) Alarm Off (Green) Power Output On (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 for the 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? (Red) Alarm Off (Green) Power Output On Beep None Power Supply Output Receptacles Supply power (connected devices are powered). 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 a beep 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 (Green) Power Output Beep (when the beep setting is ON) Beep (when the beep setting is OFF) Power Supply Output Receptacles A Off Blinks with an interval of 4 seconds Beeps with an interval of 4 seconds None Supply power. (Connected devices are powered.) B Off Blinks with an interval of 1 second Beeps with an interval of 1 second None Supply power. (Connected devices are powered.) 15
2. Installation and connection 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 and turn off the Power Switch. If the display is No.7 or No.8 of "3. Display and beep when a failure occurs in equipment" of "4-3 Interpreting a beep and display" on page 21, take necessary measures and then go back to (1) on page 15. If no Battery Mode is performed and the UPS and the connected devices stop, insufficient charging of the battery is suspected. Connect the 100 VAC input plug of the UPS to a wall outlet (commercial 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, contact 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.) (Red) Alarm Off (Green) Power Output On Beep None Power Supply Output Receptacles Supply power (connected devices are powered). Checking the operation is now complete. Installation and connection is now complete. 16
3. Preparation for operation 3. Preparation for operation 3-1 Charging the battery When you connect the 100 VAC input plug of this unit to a wall outlet (commercial power), the battery charging automatically starts regardless of the on/off state of the Power Switch, and it is fully charged within 12 hours. This unit has been charged prior to shipment. However, the backup time becomes shorter when using it for the 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 environment. You can use it as a guide to check the battery. See also "7. Measuring the backup time" Page 33 3-3 Recharging the battery The battery is discharged completely when the backup time is measured, so you need to recharge it before using the UPS. You can use connected devices while recharging the battery, but the backup time when a power failure occurs 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. 17
4. Operation 4. Operation 4-1 Precautions and notes on operation Caution (while in use) 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. For repair, contact us; 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. Ambient temperature 20 C 30 C Expected life 4 to 5 years 2 to 2.5 years * The values in the table are the expected life under the standard use conditions and are not the guaranteed values. 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 the 100-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 abnormal condition. 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. Notes Before 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 UPS monitoring 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 discharging of the battery is repeated and the battery life decreases extremely. The less the amount of charging and discharging is, the less the adverse effect on the life becomes. 18
4. Operation Explanation Usual 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 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 resumes power supply. If you do not want to restart connected devices, 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 after the battery is charged.) When the self-diagnostic test finishes successfully, switching to 100 VAC output from commercial power is performed and normal operation starts. If the self-diagnostic test is not executed, the UPS immediately starts outputting 100 VAC from commercial power. (Red) Alarm Off (Green) Power Output On Beep None Power Supply Output Receptacles Supply power (connected devices are powered). During operation, the battery is charged automatically. 19
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 (Red) Alarm (Green) Power Output Beep (when the beep setting is ON) Beep (when the beep setting is OFF) Power Supply Output Receptacles A Off Blinks at intervals of 4 seconds Beeps at intervals of 4 seconds None Supply power. (Connected devices are powered.) B Off Blinks at intervals of 1 second Beeps at intervals of 1 second None Supply power. (Connected devices are powered.) 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 the consumed battery starts. Stop procedure Operation Turn on the power switch of the UPS. The Power Output Lamp goes out and power output from the UPS stops. (Red) Alarm Off (Green) Power Output Off Beep None Power Supply Output Receptacles Power output is stopped (connected devices are stopped). Even if you turn off the power switch, if 100 VAC is supplied from commercial power, the battery is automatically charged. 20
4-3 Interpreting a beep and display On Off Blink 1. Display and beep during normal operation 4. Operation No. 1 2 3 Display lamp Alarm Power Supply Output Alarm Power Supply Output Alarm Power Supply Output Beep None None None Output Stop Stop ON Charging Stop ON ON Description 100 VAC input not supplied. Operation stopped. 100 VAC input supplied. Power Switch: OFF. Power Switch: ON 100 VAC input is normal. In normal operation. Remedy 2. Display while testing No. 4 Display lamp Alarm Power Supply Output 4-second interval Beep None Output ON Charging Description Stop Self-diagnostic test or battery test in process Discharging Remedy 3. Display and beep during power failure or abnormal voltage input No. Display lamp Beep Output Charging Description 5 Alarm Intermittent 4-second interval ON Stop Discharging Power Supply Output (When setting is ON) 4-second interval 6 Alarm Intermittent ON Stop 1-second interval Discharging Power Supply Output (When setting is ON) 1-second interval Continuous Operating in Battery Mode because of power failure or the input voltage over 110V or less than 90V. If operation in Battery Mode is continued, the battery runs down. (Same as above) Because the battery is weak, output will stop soon. 4. Display and beep when a failure occurs in equipment No. Display lamp Output Charging Description 7 Alarm 0.5-second interval Power Supply Output Beep Intermittent 0.5-second interval Short beep ON ON 8 Alarm Power Supply Output ON Stop 750VA is exceeded due to too many connected devices. Backup will not be performed against power failure in this status. If this status continues longer than 5 minutes, it results in the status described in No.8 occurs and output will be stopped. Stopped because of a unit failure or the connection capacity exceeded. If the excess of the connection capacity is 120% or more, the unit immediately enters the status No.8 instead of No. 5. Display and beep when battery replace occurs No. 9 Display lamp Alarm 2-second interval Beep Intermittent 2-second interval Output ON Charging ON Description It has been detected that the battery is weak by the battery test. Power Supply Output Short beep Remedy Shut down the connected devices after performing shutdown procedure. (Same as above) Remedy Decrease the number of connected devices until the display disappears and the unit returns to the status No.3. Turn off the UPS and all the connected devices, and turn on only the Power Switch of the UPS again. If the Alarm Lamp goes on again, the UPS is at fault. Contact us; If the unit goes into the status No.3, reduce the number of connected devices. Remedy Replace the battery. You can replace it with an optional spare battery by yourself. Refer to "5. Maintenance and inspection" on page 25. 21
4. Operation 4-4 Suspending a beep You can suspend a beep by pressing and holding the Beep Stop/Test Switch while a beep is sounding for 0.5 second or longer. You can suspend a beep in the following statuses. During Battery Mode When 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 failure occurs in equipment" on page 21. 4-5 Description of the self-diagnostic test function You can use the following procedure to check whether a failure occurs inside the UPS and whether replacing the 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. (No beep 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 occurs in equipment." or "5.Display and beep when battery replace." 22
4. Operation 4-6 Description of the auto battery test function This UPS provides functions to automatically check whether replacing the battery is required and whether the internal 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 (commercial power). If you disconnect the AC Input Plug from a wall outlet (commercial power) when the Power Switch of the 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 auto battery 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 occurs in 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 23 See " Auto battery test ON/OFF setting." 4-7 Changing the setting of the functions 1. Selecting functions with the setting switches Operation 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 ) Factoryshipped setting: ON and ON When 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 monitoring software 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 (no delay 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 23
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 management software Page 38 Setting switch 1 Setting switch 2 Power output stop delay time OFF OFF Does not stop power output. ON OFF 0 second OFF ON 60 seconds ON ON 120 seconds ON 1 2 3 4 5 Beeper ON/OFF setting (setting switch 3 ) Factory-shipped setting: ON ON 1 2 3 4 5 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 on or 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 1 2 3 4 5 ON: You can stop power output from the UPS by inputting the UPS Stop Signal (HIGH) that lasts at least 0.01 second (10 ms). The Stop Signal is accepted only in the Battery Mode to stop power output. After the output is stopped, when abnormal power such as a power failure is resolved, the UPS automatically restarts. If you do not want to stop the UPS in Commercial Power Mode even if the UPS Stop Signal is inputted, use this setting. OFF: You can stop power output from the UPS by inputting the UPS Stop Signal (HIGH) that lasts at least 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 1 2 3 4 5 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. 24
5. Maintenance and inspection 5. Maintenance and Inspection When maintaining connected equipment, turn off the Power Switch of this unit 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. Do not disassemble, repair, or modify the unit. Doing so may cause an electric shock or a fire. 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. Caution (maintenance and discarding) 5-1 Checking the battery The 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 accurately, check the battery following the procedure below. 1. Life of battery (estimated replacement timing) 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 2. Method to check the battery See 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 obtained from 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 to make judgment accurately. 3. Guideline on the frequency of checking the batter (measuring the backup time) 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 * The battery deteriorates even if it is stored. The higher the temperature is, the shorter the life becomes. 25