Lega T series User manual

USER MANUAL

T SERIES

T - 250 kVA

T - 300 kVA

CONTENTS

SAFETY

SAFETY.............................................................................................................................................2

I. GENERAL DESCRIPTION .........................................................................................................3

1.1 Introduction .........................................................................................................................3

1.2 Design Concept...................................................................................................................4

1.2.1 The Operating Modes of UPS....................................................................................5

1.2.2 The Power Configuration of UPS................................................................................5

1.3 Technical Specifications......................................................................................................9

II. FRONT PANEL .........................................................................................................................10

2.1 Introduction..........................................................................................................................10

2.2 Alarms And Status Messages.............................................................................................10

2.3 Menu Description.................................................................................................................13

2.4 MAIN MENU .......................................................................................................................15

2.5 MEASURES MENU ITEMS.................................................................................................15

2.6 ALARMS Menu Items..........................................................................................................15

2.7 INFORMATION Menu Items ..............................................................................................16

2.8 SETTINGS Menu Items......................................................................................................16

2.9 COMMAND Menu Items .....................................................................................................17

2.10 TIME MENU ITEMS.........................................................................................................18

2.11 PASSWORD Menu Items.................................................................................................18

III. PARALLEL OPERATION...........................................................................................................19

3.1 Introduction..........................................................................................................................19

3.1.1 Security .....................................................................................................................19

3.1.2 Redundancy ..............................................................................................................19

3.1.3 Power Increment........................................................................................................19

3.2 Parallel Operation Modes.....................................................................................................19

3.2.1 Symetric Parallel Mode..............................................................................................19

3.2.2 Redundant Parallel Mode.........................................................................................20

3.2.3 Hot Standby Mode ....................................................................................................21

3.3 Parallel Operation Mode Fault Codes...................................................................................21

3.4 Parallel System Accessories................................................................................................21

IV. OPERATING INSTRUCTIONS...................................................................................................23

4.1 Introduction..........................................................................................................................23

4.2 Procedure For Switching The UPS To Power The Load From a Power-Off Condition...........23

4.3 Procedure For Switching The UPS Into a Maintenance Bypass From Normal Operation ......23

4.4 Procedure For Switching The UPS ON From a Maintenance By-Pass

Power Down Condition ........................................................................................................24

4.5 Procedure For Switching The UPS ON From Static By-Pass................................................24

4.6 Procedure For Completely Powering Down The UPS...........................................................24

4.7 When Utility Power Is Interrupted.........................................................................................25

V. INSTALLATION PROCEDURE..................................................................................................26

5.1 Introduction..........................................................................................................................26

5.2 Unpacking ...........................................................................................................................26

5.3 Equipment Positioning.........................................................................................................26

5.4 Connecting The UPS Power Cables.....................................................................................27

5.4.1 Safety Earth...............................................................................................................28

5.4.2 Cable Connections.....................................................................................................28

5.4.3 Battery Installation .....................................................................................................31

5.4.4 The Communication (UPS-Server).............................................................................33

VI. CUSTOMER SERVICE...............................................................................................................34

6.1 Maintenance........................................................................................................................34

6.2 Troubleshooting...................................................................................................................34

6.3 Storage................................................................................................................................34

VII. REMOTE MONITORING AND CONTROL ................................................................................35

7.1 Using Serial Port .................................................................................................................35

7.2 Serial Communication Cable ..............................................................................................35

7.3 Modem Connection .............................................................................................................35

7.3.1 Hardware Configuration .............................................................................................35

7.3.2 Functioning Principle..................................................................................................35

7.3.3 SMART Modem Programming (PC modem)...............................................................35

7.3.4 DUMB Modem Programming .....................................................................................35

7.3.5 DUMB Modem –UPS Connection Cable.....................................................................35

7.4 Dry Contact (Interface) Connection.....................................................................................37

7.5 Remote Monitoring Panel.....................................................................................................37

VIII. LIMITED WARRANTY................................................................................................................38

SAFETY

This manual contains important instructions for T series UPS that should be followed during installation and

maintenance.

IMPORTANT NOTICES

1. Read instructions carefully before operating the UPS

2. All warnings in the manual should be adhered to.

3. All operating instructions should be followed.

4. The unit should be supplied by a grounded outlet. Do not operate the unit without ground source.

5. Power cord of the UPS should be routed carefully so that they are not to be walked on.

6. Please save this manual.

7. Please save or recycle the packaging materials.

WARNING !

Do not insert any object into ventilation holes or other openings.

To reduce the risk of fire or electric shock, install in temperature and humidity controlled indoor area free of

conductive contaminants.

To reduce the risk of fire, replace fuses with the same type and rating when necessary.

CAUTION !

Only qualified personnel should install or service UPS/batteries.

Risk of electric shock, do not remove cover. No user serviceable parts inside, refer servicing to

qualified service personnel.

The output may be energized when the unit is not connected to a mains supply.

Risk of electric shock hazardous live parts inside this unit are energized from the battery supply

even when the input AC power is connected.

Turn OFF the UPS before installing a computer interface signal cable. Reconnect the power cord only after

signaling interconnections have been made.

CAUTION !

Units are designed to operate on the concrete floor.

ABOUT THE BATTERY

A battery can present a risk of electric shock or burn from high short circuit currents. The following

precaution should be observed when working on batteries :

* Remove watches, rings or other metal objects.

* Use tools with insulated handles.

The batteries in this UPS are recyclable. Batteries must be disposed of according to local environmental

laws. The batteries contain lead and pose a hazard to the environment and human health if not disposed of

properly.

Do not dispose of batteries in a fire. The batteries will explode. Do not open or mutilate the batteries. They

contain an electrolyte which is toxic and harmful to the skin and eyes. If electrolyte comes into contact with

the skin the affected area should be washed immediately.

The energy source (the battery) cannot be de-energized by the user.

I. GENERAL DESCRIPTION

1.1 Introduction

T Uninterruptible Power Supplies, are On-Line UPS’s, being manufactured with the state-of-the art PWM and

IGBT technology, produce microprocessor controlled pure sine wave output to critical loads.

T series UPS’s install between the critical load and the mains.

The advantages of using UPS:

Power blackout protection:

If the mains power fails, the UPS continues to power the critical load from its battery source, leaving the load

immune from power disturbances.

Increased power quality:

The UPS has its own internal voltage and frequency regulator circuits, which ensure that its output is

maintained within close tolerances independent of voltage and frequency variations on the mains power lines.

Increased noise rejection:

By rectifying the input AC power to DC power, and then converting it back to AC, any electrical noise present

on the input mains supply line is effectively isolated from the UPS output, therefore the critical load sees only

clean power.

WARNING for restricted sales distribution.

Features :

Parallel mode operation (optional) up to 2 UPS. (1 redundant)

On-line technology with pure sine wave output.

PWM and IGBT technology.

3 Microprocessors at each UPS

Microprocessor controlled main controller board.

Microprocessor controlled rectifier board.

Microprocessor controlled parallel control board.

Static (STS) and maintenance by-pass.

LCD (Liquid Crystal Display) display.

Alarm history (Memory for max. 64 alarms.)

High quality maintenance-free lead-acid type batteries.

High nonlinear load capacity, special for computers.

Automatic and Manual Battery Test System:

After all the pre conditions ensured, the battery test is made periodically by itself.

Interactive battery management system (optional)

Nonlinear loads driving capability.

Facility of connection with the PC:

In case of failure, alarms of the UPS (Battery low, mains control or general) is shown by the dry relay contacts

and RS232, to the user. The relay interfaces are specially produced for the server systems (IBM AS400

and Microsoft Windows NT).

Accessories:

oOptional UPS monitoring software ( RUPS, RUPSII, UPSILON) SNMP devices, compatible to

any operating system.

oRemote Monitoring Panel (RMP) available: You can observe the UPS status and parameters without

using a computer at a remote location up to 200 meters away (via RS485 interface). Up to 5 remote

monitoring panel connection is possible.

oUPS Port Sharer up to 24 server is available

1.2 Design Concept

: Inverter input power switch

: Static by-pass input power switch

: Maintenance by-pass power switch

: UPS power out switch

: Battery circuit breaker (optional)

RECTIFIER: The first conversion stage (from AC to DC) uses a 3 phase, fully controlled rectifier to convert the

incoming mains supply into a regulated DC BUS BAR. The DC BUS BAR produced by the rectifier provides

both battery charging power and power to the inverter section.

BATTERY GROUP: It keeps as an reserve DC power supply, for the inverter in case of mains failure.

INVERTER: It is made by utilizing the latest technology of power transistor (IGBT) and pulse width modulation

(PWM). Inverter converts dc bus voltage into (second conversion) an alternative voltage like line voltage. And

provides this voltage and frequency being fixed.

STATIC TRANSFER SWITCH (STATIC BY-PASS): Two types of bypass circuitry is available for T series UPS

Full static switch for parallel systems

Half static switch for normal UPS

The circuit block annotated contains an electronically controlled switching circuit, which enables the critical

load to be connected either to inverter output or to a by-pass power source via the “static by-pass line”.

Normally at standart models, the load is connected to the inverter via a contactor K1 (controlled by the static

switch circuits); but in the event of a UPS overload, or inverter failure, it is automatically transferred to the

static by-pass line.

In parallel systems the second static switch is builded, from inverter output, to load.

Inverter

Rectifier

Static By-pass

Static Transfer Switch

Maintenance By-pass

Mechanic Transfer Switch

3 Phase

Line

Input

3 Phase

Load

Output

Battery Group

Figure 1-1 Block Diagram

MECHANIC TRANSFER SWITCH (MAINTENANCE BY-PASS): A second, manually controlled, ”maintenance

by-pass” supply is also incorporated into the UPS design. Its purpose is to enable the critical load to be

powered from the mains (by-pass) supply while the UPS is shut down for maintenance or troubleshooting.

The load is unprotected against mains power supply aberrations or failure when it is connected to either the

static by-pass or maintenance by-pass supply.

BATTERY CIRCUIT BREAKER: There is a fuse loadbreak switch (externally mounted) between the UPS and

the batteries. The battery is connected to the DC BUS BAR through a fuse loadbreak switch. This switch has

two built-in fuses (one for battery plus, and one for battery minus). This circuit breaker is closed manually.

Also electronic controlled battery circuit breaker (optional) available. This circuit breaker is closed manually

but it contains an under voltage release coil which enables it to be tripped from the UPS control electronics

following certain detected faults. It also has a magnetic trip facility for overload protection.

BATTERY GROUP (CABINET): The batteries associated with the UPS are generally housed in a purpose-built

cabinet located along-side the main UPS equipment. For a long-term efficiency from the batteries, keep them in

room temperature (20C).

1.2.1 The Operating Modes of UPS

A. Normal Operation (If there is a main) : All relevant power isolators and circuit Breakers

Closed (except mechanical bypass circuit breaker), the load is powered by the UPS. Also during the

normal operation battery charges. This is made by the UPS’s rectifier.

B. Battery operation:

During this operation Inverter part of the UPS is converting DC power (from battery group) to AC

power, and feeding the load. Critical load works till the batteries are being empty. At the end of

discharge UPS gives ”A7 BATTERY LOW” alarm.If the batteries are fully discharged UPS gives

“A5 BAT.AUT END” message and shutdown. When the mains is restored the UPS returns back to

normal operation.

NOTE: The battery circuit breaker must be turn to “1” position when the mains is restored. If not in a

second main failure the critical load will be without Voltage.

C. On maintenance by-pass: UPS shutdown but the load connected to the unprotected mains

via the maintenance by-pass supply line.

D. Parallel operation : (optional, need special hardware) At least 2 UPS’s is installed to system

for increasing security and redundancy, they operates together and interactive.

1.2.2 The Power Configuration of UPS

The power switch location of the T series UPS’s are shown in the figures 1.1-2-3 In the figure 1.2 external (split)

by-pass block diagram is given. Optionally the static and mechanic by-pass line can be connect to a different 3

phase AC source ( other UPS etc.),and the rectifier input is connected to generator or mains voltage. If there is

no other power supply static and mechanic by-pass line input (S2) and the rectifier input connections will be

connect to each other. (See figure 1.1)

During the normal operation except the maintenance by-pass switch, all the Switches will be at “1-On” position.

3 phase

load

output

Inverter

Rectifier

Static By-Pass

Static Transfer Switch

Maintenance Bypass

Mechanic transfer switch

3 Phase

Line

Input

Battery group

3 Phase

By-Pass

Supply

Input

Figure 1.2 UPS Split (external) By-Pass Block Diagram

Parallel System

Data Socket

(DB25 Female)

(optional)

RS232

Communication

Port

(DB9 Female)

Parallel System

Analog Signals

Socket

(DB15 Female)

(optional)

Dry Relay Output Contacts

Battery Circuit

Breaker Input

Emergency

Stop

Line Failure

Relay

Battery Low

Relay

By-Pass

Relay

Figure 1.3 250-300 kVA Power Switch Locations

RS232 –SNMP

Communication

Select Switch

SNMP Socket

(optional)

1.3 Technical Specifications

GENERAL SPECIFICATIONS

250

300

Output kVA

250

300

Output kW

200

240

Output Power factor

0,8

Parallel Operation

Up to 2 UPS (1 Redundant) (optional)

Hot Stand-by Operation

Up to 2 UPS (1 Redundant) (optional)

Battery charging temperature compensation

Optional

Emergency shutdown

Available

INPUT

Number of phase

3 phase

Input voltage

220/380 Vac or 230/ 400 Vac 3 phase ,N

Voltage tolerance

+15% , -15%

By-pass voltage

220/380 Vac or 230/ 400 Vac 3 phase, N

Input frequency

50 Hz. 5%

RFI Level

EN 50091

Split bypass connection

Available

OUTPUT

Number of phase

3 phase

Nominal Output voltage

220/380 Vac or 230/ 400 Vac 3 phase ,N

Voltage regulation tolerance

1%

Nominal Output frequency

50 Hz

Output frequency tolerance (line syncron)

2%

Output frequency tolerance (free running)

0,2%

Efficiency 100% Load

90%

Load Crest Factor

3:1

Total Harmonic Distortion (THD)

<3%

Overload

125% load 10 min.150% load 1 min.

BATTERY

Number of

Run time

Optional

Float charge voltage

432 Vdc

End of charge voltage

320 Vdc

Boost charge

Available

Battery Test

1 time in 1 week (manuel test available)

Charge time

<5 hours at full load

Battery trip

Available

INTERFACE

Communication

RS232(standart) RS485 (optional)

Up to 5 remote monitoring panel

Remote control

Dry contact Line failure,battery low,bypass,

EPO ,battery trip in/out

SNMP capability

Optional SNMP adapter

Modem connection

Available

OTHER

Maximum temperature

0-40C

Audible noise

<60 dBA

Humidity

%10-%90

Dimensions (HxWxD) (mm)

1880x1565x920

II. FRONT PANEL

2.1 Introduction

The front panel of UPS, consisting of a 2 lines alphanumeric display ,6 status lamps,plus 5 function keys, allows

the complete monitoring of the UPS status. The mimic flow diagram helps to comprehend the operating status

of the UPS. By using the function keys operator can moves on menus and change some parameters.

Figure 2-1 Operator control and indicator panel

If lamp is lit mains is okay

If lamp is lit the rectifier is operating

If lamp is lit UPS is operating on batteries

If lamp is lit static bypass is active and load is connected to mains voltage

If lamp is lit mechanical bypass switch is on

If lamp is lit inverter feeds the load

If lamp is lit S4 power output switch “1” on position. (Not exist in 40 kVA)

There are 5 function keys on front panel these are ENTER ,UP ,DOWN ,PLUS and MINUS.

UP and DOWN keys help moving on menus , PLUS and MINUS keys select options , ENTER key means the

selected option or menu is valid.

NOTE : ALL MESSAGES SHOWN IN THIS CHAPTER IS VALID FOR MC VERSION OF UPS

CONTROL SOFTWARE.

2.2 Alarms And Status Messages

Totally 64 alarm and status messages are used in UPS which helps the user. Messages are coded for easy

dialog with service organization,all messages contains numbers A1-A2-A3….An. Messages and events in UPS

are recorded to a log file with event time and date

ALARM

DESCRIPTION

A1 BYPASS FAILURE

Bypass system failure

Possible Causes:

1) Maybe bypass parts are defective call service

A2 INVERTER FAILURE

Inverter digital start system is failed

Possible Causes:

Internal failure. Call service.

A3 3 OVERTEMP

Overload in UPS repeated at 3 times in 30 min.

Possible Causes:

1) Overload

2) Fan failure or durty air inlets,outlets

3) Bad UPS settling

ENTER

ALARM

DESCRIPTION

A4 OUT FAILURE

UPS output voltage is out of tolerance at 3 times in 30 min.

Internal failure. Call service.

A5 BATT AUT END

Batteries empty at last of line out. Wait to return of electric.

A6 CHARGER FAULT

Rectifier is not to produce DC bus voltage.

A7 BATTERY LOW

Batteries are low.

Possible Causes:

1) UPS wrought long time when line out

2) Charger system failure

A8 OUTPUT HIGH

Inverter output voltage is over than max. tolerance voltage value.

Inverter is stopped.

Possible Causes:

1) Inverter failure

A9 OVERLOAD

UPS loaded over than max. %100 load level.

Possible Causes:

Load on the UPS output is over than max. Load capacity. This state is maybe

continous or short time. When this alarm is continous to check loads.

A10 LINE FAILURE

Line failure.

Possible Causes:

1) Maybe line out

2) There is a problem on the UPS ınput board. Please Check.

3) UPS input fuses blowned.

A11 HIGH TEMPER

Over temperature. (inverter or rectifier section)

Possible Causes:

1) Overload for inverter

2) Over temperature

3) Fan failure or durty air inlets

4) Bad UPS settling. There is not vantilation area.

A12 IGBT FAILURE

Inverter output system failure.

Possible Causes:

1) Overload.

2) Short circuit.

3) UPS is out of order. Call service.

A13 OUTPUT LOW

Inverter output voltage is under than min. tolerance voltage value.

Inverter is stopped.

A14 BATTERY HIGH

Battery voltage is over than max. tolerance.

A15 FUSE FAILURE

Fuse blowned. (not used at this power range)

A16 BYP INPUT BAD

During transfer to bypass ,Voltage or frequency value of bypass source is incorrect

and the UPS turn off the load power.

During normal (inverter) operation some times you can see this message.

During bypass if the bypass protection option is on and if the bypass source is

tolerant out UPS switch off the static bypass for load protection.

A17 BATT CB OPEN

Battery circuit breaker is off ,batteries are not connected to UPS

At start up If the mains is okay you can start operation but this message is active

At start up During Line failure UPS waits for turn on battery CB and then it starts

A18 BATT.CAPA.LOW

If the battery charge is low this message indicates that charge period is not

completed. If mains failure occurs during this message battery operating time is

not valid.

UPS gives beep sound whitin 15 sec

A19 BATT FAULT

Battery test aborted. And batteries are not OKAY

UPS gives beep sound whitin 15 sec

You can clear this message by pressing 3 seconds to ENTER key

Possible Causes:

1) Rectifier fault

2) Battery cells damaged

3) PURE battery connection

A20 BOOST CHARGE

Boost charge is active for 10 hours. At the end of this time UPS stops the boost

charge.

UPS gives beep sound whitin 15 sec

A21 ROTATE PHASE

Phase sequence is changed on the UPS input. Please change.

A23 MODE FAILURE

In parallel system, the operation mode of 1 UPS is differenf from the other

A24 P.FAILURE 17