TOSHIBA

NOTE

The instructions contained in this manual are not intended to cover all of the details or variations in equipment, nor to provide for every possible contingency

to be met in connection with installation, operation, or maintenance. Should further information be desired or should particular problems arise which are not covered sufficiently for the purchaser's purposes, the matter should be referred to the local Toshiba sales office.

The contents of this instruction manual shall not become a part of or modify any prior or existing agreement, commitment, or relationship. The sales contract contains the entire obligation of Toshiba International Corporation's UPS Division. The warranty contained in the contract between the parties is the sole warranty of Toshiba International Corporation's UPS Division and any statements contained herein do not create new warranties or modify the existing warranty.

Any electrical or mechanical modifications to this equipment, without prior written consent of Toshiba International Corporation, will void all warranties and may void UL listing or other safety certification. Unauthorized modifications also can result in personal injury, death, or destruction of the equipment.

UNINTERRUPTIBLE POWER SUPPLY

If additional information or technical assistance is required call Toshiba's marketing department toll free at (800) 231-1412 or write to: Toshiba International Corporation, 13131 W. Little York Road, Houston, TX 77041-9990.

Please complete the following information for your records and to remain within this equipment manual:

Model Number:

Serial Number:

Date of Installation:

Inspected By:

i

TOSHIBA

ii

iii

TOSHIBA

INTRODUCTION

Thank you for purchasing the 1500/1500 Plus Series UPS. This Series features the very latest state of the art microprocessor technology and also uses IGBT transistors for fast, high power and low noise PWM (pulse width modulation) switching. Also, the Plus Series features a low impedance transformer to provide isolation even during bypass operation.

It is the intent of this manual to provide a guide for safely installing, operating, and maintaining

the UPS. This operation manual contains a section of general safety instructions and is marked throughout with warning symbols. Read this operation manual thoroughly before installation

and operation of this electrical equipment.

All safety warnings must be followed to ensure personal safety.

Follow all precautions to attain proper equipment performance and longevity.

General safety instructions are found on page v and important safety instructions are found on pages vi, vii, and viii. Read and save these instructions for future reference.

The manual is divided into major sections of interest. Section 1 contains the product description with the theory of operation and applications. All of the initial inspection, storage, installation, operating, and prestart precautions can be found in Sections 2 and 3.

Section 4 contains the equipment standard specifications.

Section 5 outlines the operating modes, protective features, battery recharging, battery low voltage tolerances, alarm and panel indicator functions.

Section 6 shows the control interface pin configurations.

Sections 7 and 8 are devoted to troubleshooting procedures, preventative maintenance techniques and periodic parts replacement. A fuse rating chart is also shown.

Section 9 shows front, rear, and side panel layout views with dimensional data. Labels, connector and switch placement, and shipping weights are also shown.

We hope that you find this operation manual informative and easy to use. If additional information or technical assistance is needed, please call toll free (800) 231-1412 or write to: Toshiba International Corporation, 13131 W. Little York Road, Houston, TX 77041-9990.

Again, thank you for the purchase of this product.

TOSHIBA INTERNATIONAL CORPORATION

?? Copyright 1994

iv

TOSHIBA

GENERAL SAFETY INSTRUCTIONS

Warnings in this manual appear in any of four ways:

1)Danger - The danger symbol is a lightning bolt mark enclosed in a triangle which precedes the 3/16" high letters spelling the word "DANGER". The danger symbol is used to indicate imminently hazardous situations, locations, and conditions which, if not avoided, WILL result in death, serious injury, and/or severe property damage.

DANGER

2)Warning - The warning symbol is an exclamation mark enclosed in a triangle which precedes the 3/16" high letters spelling the word "WARNING". The warning symbol is used to indicate potentially hazardous situations and conditions which, if not avoided COULD result in serious injury or death. Severe property damage COULD also occur.

WARNING

3)Caution - The caution symbol is an exclamation mark enclosed in a triangle which precedes the 3/16" high letters spelling the word "CAUTION". The caution symbol is used to indicate potentially hazardous situations and conditions which, if not avoided may result in injury. Equipment damage may also occur.

CAUTION

4)Attention warnings - The attention warning symbol is an exclamation mark enclosed in a triangle which precedes the 3/16" high letters spelling the word "ATTENTION". The Attention warning symbol is used to indicate situations and conditions that can cause operator injury and/or equipment damage:

ATTENTION

Other warning symbols may appear along with the Danger and Caution symbol and are used to specify special hazards. These warnings describe particular areas where special care and/or procedures are required in order to prevent serious injury and possible death:

1)Electrical warnings - The electrical warning symbol is a lighting bolt mark enclosed in a triangle. The Electrical warning symbol is used to indicate high voltage locations and conditions that may cause serious injury or death if the proper precautions are not observed:

2)Explosion warnings - The explosion warning symbol is an explosion mark enclosed in a triangle. The Explosion warning symbol is used to indicate locations and conditions where molten, exploding parts may cause serious injury or death if the proper precautions are not observed:

v

TOSHIBA

IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS- This manual contains important instructions

that should be followed during the installation and maintenance of the UPS and it's batteries. Use for models UE1A1A006C6, UE1A1A006C6T, UE1A1A008C6, UE1AIA008C6T, UE1A1A010C6, UE1A1A010C6T, UE1A1A012C6.

-The maximum ambient temperature in which this UPS unit should be operated or stored is 104 ??F (40 ??C).

-The nominal battery voltage range is indicated in Section 5.6.

-Servicing of the batteries should only be performed by a qualified Toshiba Representative who is

knowledgeable of batteries and the required precautions. Keep unauthorized personnel away from batteries.

- When replacing batteries, use the same number and type of one of the following sealed, lead-acid batteries (do not mix types of batteries):

either indirect or consequential damage or injury that may result from the use of this equipment.

flame. Annual preventative maintenance must be performed by an authorized, trained technician.

resulting in secondary faults such as odor, smoke, and fire.

vi

TOSHIBA

IMPORTANT SAFETY INSTRUCTIONS

WARNING Installation and servicing of batteries should be performed by personnel knowledgeable of batteries and the required precautions. Keep

unauthorized personnel away from the batteries.

WARNING Proper maintenance to the battery system of this unit must be done by a qualified service technician, this is essential to the safety and reliability of

your UPS system. Refer to service manual.

1)Verify that the UPS is off and that the power cord is disconnected from the power source.

2)Remove watches, rings or other metal objects.

3)Use tools with insulated handles to prevent inadvertent shorts.

4)Wear rubber gloves and boots.

5)Do not lay tools or metal parts on top of batteries.

6)Determine if the battery is inadvertently grounded. If inadvertently grounded, remove source of ground. Contact with any part of a grounded battery can result in electrical shock. The likelihood of such shock will be reduced if such grounds are removed during installation and maintenance.

7)Verify circuit polarities prior to making connections.

8)Disconnect charging source and load prior to connecting or disconnecting terminals.

9)VRLA batteries contain an explosive mixture of hydrogen gas. Do not smoke, cause a flame or spark in the immediate area of the batteries. This includes static electricity from the body.

10)Do not attempt to open the batteries in order to add water or sample the specific gravity of the electrolyte. The batteries are valve regulated lead acid type and such servicing is not possible without damaging the battery.

11)Use proper lifting means when moving batteries and wear all appropriate safety clothing and equipment.

12)Do not dispose of lead acid batteries except through channels in accordance with local, state and federal regulations.

vii

TOSHIBA

INSTRUCTIONS IMPORTANTES CONCERNANT

LA S??CURIT??

Cette notice contient des CONSERVER CES INSTRUCTIONS instructions importantes concernant

la s??curit??.

ATTENTION L' ??limination des batteries est r??glement??e. Consulter les codes locaux ?? cet effet.

?? Copyright 1994

viii

TOSHIBA

1.0Product Description

1.1Theory of Operation

An uninterruptible power supply is a system that is installed between the commercial power and the load equipment. It is used during short-term blackouts or brownouts. The UPS provides steady ac output power during these commercial power interruptions. This power is provided for a long enough time so that the load can be shutdown in an orderly fashion. This prevents loss of data and possible damage to both hardware and software.

During normal operation the UPS uses commercial ac power. In addition, it also takes in all of the high voltage spikes and transients caused by switching and faults, and all of the common mode and normal mode noise which is associated with commercial ac power. The UPS converts it all to flat dc power. From this dc power, the UPS charges its batteries and generates its own extremely high quality ac waveform output. The result of this process is maximum power conditioning.

If the ac power supplied to the UPS drops below a specified voltage level, the unit's batteries automatically begin supplying power instead of receiving it. This insures that the loads connected to the UPS continue to receive power with no interruption. When ac input power becomes available again, operation returns to normal. The unit's batteries begin to recharge so they will be ready for the next power interruption.

1.2Application and Use

Toshiba's 1500 and 1500 Plus Series of on-line uninterruptible power supply (UPS) systems provide continuous computer-grade ac power in a compact, high performance, and energy efficient unit. The UPS unit assures safe and reliable operation of critical office equipment. This can range from word processors and personal computers to mini-computers and local area networks. All units feature an audible alarm which sounds if the battery voltage drops below standard during use. This is an additional aid to help in retaining the valuable office data banks. All units allow for computer interfacing and an external battery pack option (see specifications).

1.3Power Backup

When an electrical power failure occurs, the UPS unit's internal maintenance-free batteries automatically supply back-up power to the load without interruption. For example, when used to support a computer, the UPS back-up assures enough additional time to complete the activity and store data. This allows an orderly shutdown after a power failure has occurred.

1.4Power Conditioning

When commercial power is present, the UPS supplies conditioned power to the load while maintaining its batteries in a charged condition. The UPS protects against the normal everyday problems associated with heavy use of raw commercial ac power, including power sags, surges, signal interference, and spikes. This protection keeps power-line problems from reaching the loads where they can cause equipment to operate erratically, hard-disk crashes, or cause damage to hardware and software.

1 - 1

TOSHIBA

2.0Inspection/Storage/Disposal

2.1Inspection of the new UPS equipment

Upon receipt of the UPS, a careful inspection for shipping damage should be made.

After Uncrating:

1)Check the unit for loose, broken, bent or otherwise damaged parts. If damage has occurred during shipment, keep all original crating and packing materials for return to shipping agent. Warranty will not apply to units which are damaged during shipment.

2)Check to see that the rated capacity and the model number specified on the nameplate conform to the order specifications.

2.2Storage of UPS equipment.

If the UPS equipment is to be subject to long or short term storage the following guidelines should be used.

Avoid:

1)Storage in sites subject to extreme changes in temperature or high humidity.

2)Storage in sites subject to exposure of high levels of dust or metal particles

3)Storage on inclined floor surfaces or in sites subject to excessive vibration.

Before storing:

1)Charge the units batteries.

2)Place the STOP/RUN switch in the STOP position.

Storing:

1)Store within a temperature range of -20?? to 40?? C (-4?? to 104?? F).

2)For best results, store the UPS in the original shipping container and place on a wood or metal pallet.

3)The optimum storage temperature is 21?? C (70?? F). Higher ambient temperatures cause UPS batteries to need recharging more frequently.

After storing:

1)If stored in an ambient temperature under 20?? C (68?? F); recharge the batteries every 9 months.

2)If stored in an ambient temperature of 20?? to 30?? C (68?? to 86?? F); recharge the batteries every 6 months.

3)If stored in an ambient temperature of 30?? to 40?? C (86?? to 104?? F); recharge the batteries every 3 months.

2.3Disposal

Please contact your state environmental agency for details on disposal of electrical components and packaging in your particular area.

It is illegal to dump lead-acid batteries in landfills or to dispose of them improperly.

Please help our Earth by contacting the environmental protection agencies in your area, the battery manufacturer, or call Toshiba toll-free at (800) 231-1412 for more information about recycling.

2 - 1

TOSHIBA

1)Install the unit in a well ventilated location; allow at least 10 cm (4 inches) on all sides for air ventilation and for maintenance.

2)Install the unit in a stable, level, and upright position which is free of vibration.

3)Install the unit where the ambient temperature is within the correct operating range (see Specifications Section 4.0).

4)Do not install the UPS in areas that are subject to high humidity.

5)Do not allow direct sunlight to shine on the unit.

6)Do not install the UPS in areas which are subject to contamination such as high levels of airborne dust, metal particles, or inflammable gas.

7)Avoid installation near sources of electrical noise and always make sure that the unit ground is intact to prevent electrical shock and to help reduce electrical noise.

8)Do not install where water or any foreign object may get inside the UPS.

9)This UPS generates and can radiate radio-frequency energy during operation. Although RFI noise filters are installed inside the unit, there is no guarantee that the UPS will not influence some sensitive devices which are operating close by. If such interference is experienced, the UPS should be installed farther away from the affected equipment and/or powered from a different source than that of the affected equipment.

3 - 1

TOSHIBA

3.0 Precautions

1)Before connecting the UPS to a power source; move the operation switch (STOP/RUN), on the front panel (See sections 9.1), to the STOP position.

3.3Operating Precautions CAUTION

1)The UPS should not be powered up until the entire operation manual has been reviewed.

2)The input power source voltage and frequency must be within the specified ranges (See Specification sections 4.1 and 4.2). Voltages and frequencies outside of the permissible tolerance ranges may cause internal protection devices to activate.

3)The UPS should not be used with a load whose rated input is greater than the rated UPS output.

4)Do not use the UPS to provide power to motors that require high starting current or a long starting time such as vacuum cleaners and machine tools (oversizing for lock rotor current required).

5)Do not insert metal objects or combustible materials in the unit's ventilation slots.

6)Do not place, hang, or paste any objects on the top or on the exterior surfaces of the UPS.

7)Always use caution when connecting or disconnecting load equipment.

The UPS may be supplying power to the output load receptacles through the bypass circuit. This can occur when the STOP/RUN switch is in the STOP position and the unit is connected to a source of supply power (see Circuit-bypass Mode section 5.1.3).

3 - 2

TOSHIBA

4.0Specifications

4.1 Standard Series Specifications

(*) Output capacity reduced when input voltage is between -15% and -30% of nominal.

(**) Battery backup time may vary depending on the operating conditions including ambient temperature at the installation site.

(***) An initial charge time of 24 hrs. is necessary to obtain proper battery performance level before unit is used for battery backup.

(****) Above 3000 ft (1000 m), output capacity reduced.

4 - 1

TOSHIBA

4.0Specifications

4.1 Standard Series Specifications (Cont'd)

(*) Output capacity reduced when input voltage is between -15% and -30% of nominal.

(**) Battery backup time may vary depending on the operating conditions including ambient temperature at the installation site.

(***) An initial charge time of 24 hrs. is necessary to obtain proper battery performance level before unit is used for battery backup.

(****) Above 3000 ft (1000 m), output capacity reduced.

4 - 2

TOSHIBA

4.0Specifications

4.2 Plus Series Specifications (w/ isolation transformer)

(*) Output capacity reduced when input voltage is between -15% and -30% of nominal.

(**) Battery backup time may vary depending on the operating conditions including ambient temperature at the installation site.

(***) An initial charge time of 24 hrs. is necessary to obtain proper battery performance level before unit is used for battery backup.

(****) Above 3000 ft (1000 m), output capacity reduced. (*****) Output voltage and capacity derated for 50 Hz output.

4 - 3

TOSHIBA

5.0Operating the UPS

5.1 Operation Modes

5.1.1 AC Input Mode (normal operation)

Power flow in AC input mode

The above illustration shows circuit power flow in the ac input mode. The UPS unit's rectifier, included in a boost chopper circuit, converts ac input power to dc power. This dc power runs the unit's transistor inverter and charges the batteries. The boost chopper circuit maintains a constant voltage, with current limiting, for charging the batteries and assures proper sine waveform generation for the output current. The unit's batteries are maintained in a constantly charged state when the UPS is in the normal operation mode. On the front panel, LED's labeled "On Line" and "AC Input" should be on and the "Fault" LED should be off

(See Section 9.2 Panel Layout).

5.1.2Battery Backup Mode

Power flow in battery backup mode

The above illustration shows circuit power flow in battery backup mode. When commercial ac power failures occur, the UPS's batteries instantly begin supplying dc voltage to the UPS's main inverter circuit. This circuit changes (inverts) the dc power into ac power. The ac power is available at the unit's output receptacles. This back-up process will continue until the UPS's battery voltage drops below a specific minimum level. When this occurs, the batteries will stop supplying power to the load. This minimum level is the rated minimum voltage (Vmin). The rated battery voltage chart in section 5.6 (See Section 5.7 for battery backup time) shows (Vmin). On the front panel, LED's labeled ???AC Input??? and ???Fault??? should be off. The ???On Line??? and ???Backup??? LED???s should be on (See Section 9.2 Panel Layout).

5 - 1

TOSHIBA

5.0Operating the UPS

5.1 Operation Modes

5.1.3 Circuit-bypass mode

Power flow in circuit-bypass mode.

If the UPS unit is severely overloaded or develops an internal fault, the power flow is automatically switched from the unit's main circuit to the bypass circuit mode. Power flow through the bypass is shown in the above illustrations. This change- over occurs automatically in approximately 4 milliseconds. The switching period is not long enough to cause interruptions to occur in most UPS equipment loads.

The energy flow must be transferred manually from the UPS's bypass circuit back to the inverter circuit after first correcting the fault. Toggle the STOP/RUN switch (on the unit's front panel) first to STOP and then back to RUN. This procedure resets the UPS and transfers back to inverter. During circuit- bypass mode the AC-Input LED is ON, the On-Line LED is OFF, and the Fault LED may be ON or OFF.(See Section 9.2 Panel Layout).

5.2System Protection Features

The schematic shown below depicts the electrical locations of the protection devices on the UPS.

5 - 2

TOSHIBA

5.0Operating the UPS

5.3Operation Monitoring

5.3.1Visual Indicator Functions

The following LED (light emitting diode) indicators are located on the front panel (see Section 9.2 "Panel Layout"). Refer to these lamps for visual information about the operating condition of the UPS (see Section 5.3.3 "Visual and Audible Indicator Function Chart").

1)AC Input: This green LED lights when normal ac input power is being supplied to the UPS unit.

2)On Line: This green LED lights when the inverter output voltage is normal.

3)Fault: This red LED lights when an abnormal operating condition is detected. Operation of the unit's inverter is inhibited until the fault has been corrected and the system reset (see Section 5.10 "System Reset").

5.3.2Audible Alarm Functions

The UPS is equipped with an audible alarm system which activates under various operating conditions. Sound patterns are used to indicate these conditions (see Section 5.3.3 "Visual and Audible Indicator Function Chart"). Alarms for the battery backup mode or low battery voltage will stop automatically when AC input voltage is restored. Alarms for a fault condition will continue to sound until the UPS has been reset (see Section 5.10 "System Reset").

5.3.3Visual and Audible Indicator Function Chart

5 - 3

TOSHIBA

5.0Operating the UPS

5.4 Front Panel Layout

ON LINE (green lamp)

Lights green when the UPS???s inverter is supplying power to the load.

AC INPUT (green lamp)

Lights green when normal ac input power is being supplied to the UPS

Unit.

FAULT (red lamp)

Lights red when the UPS unit has tripped in the fault mode.

REPLACE BATTERY (red lamp)

Lights red to indicate batteries may need to be replaced.

5.5UPS On-Line Mode Display

The following chart shows normal operating conditions when the UPS On-Line lamp is green.

5 - 4

TOSHIBA

5.0Operating the UPS (Cont'd)

5.6Battery Recharging

The graph below shows the typical voltage requirements for recharging the UPS unit's batteries.

CurrentVoltage

Vmin. Discharge

shut-off point

Fully charged

The recharge process usually consists of three periods. During the first period, the current is maintained at approximately 0.4 amperes. In the second period, the constant- voltage control starts and the current gradually decreases as the batteries continue to charge. In the third period, a slight current flows into the batteries to keep them fully charged. After a complete discharge, a full recharge usually requires 24 hours (90% recharge in 8 hours).

The chart depicted below shows the rated maximum and minimum battery voltages, and the charge current for each of the sizes.

Rated battery voltages

5 - 5

TOSHIBA

5.0Operating the UPS

5.7Battery Backup Time

The UPS unit's batteries provide about 5-12 minutes of back-up time depending on the capacity of the UPS. These times are valid when a unit is operating under full load. When the units are operating at half load, the batteries can power the load equipment about 3 times longer. The exact length of these times will depend on the UPS model used, condition of the batteries, amount of load, temperature and other variables. See battery backup time in the standard specifications Sections 4.1 through 4.2.

5.8Battery Low Voltage Tolerances

Excessive discharge will cause the UPS unit's battery voltage to drop. The chart shown below lists the voltage level at which each UPS unit's low-voltage alarm will sound and also at what level the low-voltage condition will cause the unit to automatically shut down.

5.9Battery Check Function

Part of the UPS start-up procedure is an automatic 'Battery Check' to see if a problem exists in the battery circuit. When the UPS is started it will begin operation in the bypass mode. An automatic voltage level test of the batteries is made while operating in the bypass mode for five seconds. A failure of this first test will activate visual and audible alarms (see section 5.3.3 "battery problem"). If this test is passed, then the UPS will auto- transfer from bypass mode to on line operating mode. A ten second automatic voltage check of the batteries is made after the UPS has auto-transferred from bypass to on line mode. Normal on line operation continues if the second test is passed. If the second test fails, then the "Fault" LED will flash and up to three additional automatic battery voltage checks are made at 3 hour intervals while the inverter continues to operate. If the batteries are found to be normal during one of these three tests then the "Fault" LED

will stop flashing and normal inverter operation will continue. A failure of the third and final check will activate visual and audible alarms (see section 5.3.3 "battery problem") causing an auto-transfer back to bypass. If the batteries are indicated "bad" then

STOP the UPS and allow a 24 hour charge on the batteries before restarting.

5.10System Reset

The UPS is reset by moving the STOP/RUN switch from "run" to "stop" and then back to "run". Use the reset procedure to transfer from bypass back to inverter after a fault occurs. Some faults may only be cleared by shutting down the UPS, waiting for all LED's on the front panel to go off, and then restarting the UPS.

5 - 6

TOSHIBA

6.0UPS Control Interface

6.1DB25 Connector Pinout

RS-232C serial communication and Dry Contacts are both standard features available through a DB25 female connector located on the back panel of the UPS (see Section 9.1). The RS-232C serial communication interface allows control of the UPS from a personal computer running special Toshiba software. The computer is connected to the UPS through a serial RS-232C communication port. The Dry Contact interface is available as open or closed contacts. An adapter is available from Toshiba for splitting the RS-232C and Dry Contact interfaces into two separate DB9 connectors. Contact Toshiba for more information on this option. The following chart shows the pin assignments for the DB25 connector.

6 - 1

TOSHIBA

6.0UPS Control Interface

6.2RS-232C Serial Communication Interface

The available data from the UPS, via RS-232C communication, is shown below:

6.2.1UPS Shutdown (via RS-232C)

When the UPS is operating from its internal batteries, a ???shutdown??? order can be sent to the UPS telling it to turn OFF after a user-specified amount of time. This function can allow you to stop discharging the UPS batteries after an orderly system shutdown has been completed. The UPS can be programmed to turn OFF up to 8 minutes after the ???shutdown??? command is given. This command can be cancelled before the specified time has elapsed.

6.3Dry Contact Interface

The Dry Contact interface uses pins 16 trough 22. Pins 24 and 25 are used for the shutdown function. The following schematic shows the contact state and pin assignments for each signal output along with the associated DB25 connector pinout.

6 - 2

TOSHIBA

7.0Troubleshooting Procedures

Faults are those abnormal conditions that can occur and cause the unit to shutdown normal operation. The faults are detected by the protection circuitry (see System Protection Features Section 5.2) in the unit. The UPS ???Fault??? lamp will light red. "Troubleshooting" involves monitoring the bar graph lamps on the front panel and then interpreting the readout by using the fault mode display charts.

7.1Non-Fatal Fault Mode

Non-fatal faults may or may not cause the unit to shut down. These faults normally will cause the UPS to transfer to bypass mode. Use "System Restart" procedures (see Section 5.10) to transfer the UPS back to ???On Line??? mode. Use the following chart to decode the display. All non-fatal faults will cause the red ???Fault??? LED to flash.

Non-Fatal Fault Mode Display Chart

7 - 1

TOSHIBA

7.0Troubleshooting Procedures

7.2Fatal Fault Mode

Fatal faults may or may not cause the UPS to shutdown. Use "System Reset" procedures (see Section 5.10) to transfer UPS back to ???On Line??? mode. Use the following chart to decode the display. All fatal faults will cause the red ???Fault??? LED to light continuously.

Fatal Fault Mode Display Chart

overcurrent

overvoltage

Contact your Toshiba service representative.

overcurrent

7 - 2

TOSHIBA

8.0Preventive and Scheduled Maintenance/Parts Replacement

8.1Preventive Maintenance

Toshiba's 1500 and 1500 Plus Series of uninterruptible power systems have been designed to provide years of trouble-free operation requiring a minimum of preventive maintenance.

The best preventive measure that the UPS user can take is to keep the area around the unit, particularly the air inlet vents, clean and free of moisture and dust accumulations. If the atmosphere of the installation site is very dusty, use a vacuum cleaner to periodically remove dust accumulations from the system. Schedule authorized service centers to perform internal parts inspections annually.

8.2Parts Replacement

The following list shows intervals for periodic maintenance and replacement of certain UPS parts.

1)Batteries: VRLA batteries are maintenance free with respect to electrolyte only. The charging voltage, temperature, performance and connection resistance must be monitored periodically. Necessary corrective actions must be made in order to assure safe reliable power is supplied by the UPS. The aforementioned items affect the life of batteries, so replacement should be done once every 3 to 5 years at a minimum. All of the batteries must be replaced at the same time.

Quarterly maintenance

a)Visual checks

1)Leakage

2)Corrosion on positive terminal

b)Check battery temperature at the negative terminal.

c)Measure and record the system float charging voltage.

d)Measure and record the individual units float charging voltage.

Semi-Annual maintenance

a)Repeat the quarterly checks.

b)Perform a 10 second high rate (e.g. 100 amp) load test on the individual batteries.

c)Optionally test for the purpose of trending the battery over time.

d)Re-torque all inter-battery connecting hardware (if applicable).

e)Perform inter-battery connector resistance checks.

2)Aluminum electrolytic capacitors: Replace once every 5 years.

3)Fuses: Replace once every 7 years (see output fuse rating chart on the following page).

4)Cooling fan: Replace once every 3 years.

8 - 1

TOSHIBA

8.0Preventive and Scheduled Maintenance/Parts Replacement

8.3Fuse Rating Chart

The following chart shows the recommended fuses for all UPS sizes.

Fuse rating

8 - 2

TOSHIBA

9.0External Dimensions/Shipping Weights/Panel Layout

9.1 External Dimensions

10.00

Side

View

9 - 1

TOSHIBA

9.0External Dimensions/Shipping Weights/Panel Layout

9.2 Panel Layout

9 - 2

TOSHIBA

TOSHIBA INTERNATIONAL CORPORATION

INDUSTRIAL DIVISION

13131 West Little York Rd., Houston Texas 77041

Tel: [800] 231-1412 Fax: [713] 466-8773 Telex: 762078

Printed in U.S.A.