GE LP 33U Series, Digital Energy LP 33U Series Operating Manual

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GE Digital Energy

Power Quality

Operating Manual

Uninterruptible Power supply

Digital Energy™

LP 33U Series

50 & 60 kVA

208 VAC UL / Series 1

GE Consumer & Industrial SA

General Electric Company CH – 6595 Riazzino (Locarno) Switzerland T +41 (0)91 / 850 51 51 F +41 (0)91 / 850 51 44

www.gedigitalenergy.com

GE imagination at work

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Model:

LP 33U Series / 50 & 60 kVA / Series 1

Date of issue: 08/15/2008

File name: OPM_LPS_3UO_50K_60K_1US_V010

Revision: 1.0

Identification No.

Up-dating

Revision Concerns Date

The information contained in this publication is intended solely for the purposes indicated.

The present publication and any other documentation supplied with the UPS system is not to be reproduced, either in part or in its entirety, without the prior written consent of GE.

The illustrations and plans describing the equipment are intended as general reference only and are not necessarily complete in every detail.

The content of this publication may be subject to modification without prior notice.

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Dear Customer,

We thank you for selecting our products and are pleased to count you amongst our very valued customers at GE.

We trust that the use of the LP 33U Series Uninterruptible Power Supply system, developed and produced to the highest standards of quality, will give you complete satisfaction.

Please carefully read the Installation Guide. It contains all the necessary information about the installation of the UPS. Thank you for choosing GE !

START UP AND COMMISSIONING

A GE Global Services Field Engineer must perform start-up and commissioning of the UPS. Please Contact GE. Global Services at least two weeks prior to schedule start-up and commissioning at 1-800-637-1738, or by E-mail at pqservices@ge.com

Sold in the North America by:

Your service contact:

GE Consumer & Industrial SA

General Electric Company

CH – 6595 Riazzino (Locarno)

Switzerland

www.gedigitalenergy.com

GE Digital Energy

Power Quality

2501 Pecan Street

Bonham, TX 75418 T: +1 800-637-1738 F: +1 903-640-0533

E: GEPQSales@ge.com

http://www.gedigitalenergy.com/ups

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Preface

Congratulations on your choice of a LP 33U Series Uninterruptible Power Supply (UPS). It will help eliminate load disturbances due to unexpected power problem.

This Installation Guide describes how to prepare the installation site, and it provides weight and dimensions and procedures for moving, installing and connecting the UPS.

While every care has been taken to ensure the completeness and accuracy of this manual, GE assumes no responsibility or liability for any losses or damages resulting from the use of the information contained in this document.

WARNING !

LP 33U Series / 50 & 60 kVA , is a product that needs to be installed by a licensed and knowledgeable contractor.

We recommend that this manual be kept next to the UPS for future references. If any problems are encountered with the procedures contained in this manual, please contact your Service Center before you proceed.

This document shall not be copied or reproduced without the permission of GE.

Some of the information contained in this manual may be changed without notice to reflect technical improvements.

Safety instructions

Read the safety instructions contained on the following pages carefully before the installation of the UPS, options and battery system.

Pay attention to the rectangular boxes included in the text: They contain important information and warning concerning electrical connections and personnel safety.

Parallel version secured with RPA

When included in the text, this symbol refers to operation needed only for parallel system.

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Table of contents Page

1 SAFETY RULES................................................................................................................................................ 6

2 LAYOUT........................................................................................................................................................... 9

2.1 LAYOUT LP 33U Series / 50 & 60 KVA...........................................................................................................................................9

3 INTRODUCTION........................................................................................................................................... 11

3.1 GENERAL DESCRIPTION................................................................................................................................................................... 11

4 DESCRIPTION............................................................................................................................................... 12

4.1 BLOCK DIAGRAM AND MAIN ELEMENTS DESCRIPTION.................................................................................................... 12

4.2 OPERATION MODES........................................................................................................................................................................... 13

4.3 RPA PARALLEL SYSTEM.................................................................................................................................................................... 16

4.4 UPS PARALLELED ON THE SAME BATTERY.............................................................................................................................. 17

4.5 SERVICE AND TECHNICAL SUPPORT.......................................................................................................................................... 18

4.6 RECYCLING AT THE END OF SERVICE LIFE .............................................................................................................................. 19

5 SYSTEM HANDLING..................................................................................................................................... 20

5.1 CONTROL PANEL ................................................................................................................................................................................ 20

5.2 TABLE OF FUNCTIONS AND INDICATIONS ON CONTROL PANEL.................................................................................. 21

5.3 SWITCHES.............................................................................................................................................................................................. 23

6 LCD SCREEN................................................................................................................................................. 24

6.1 HOME SCREEN..................................................................................................................................................................................... 24

6.2 METERING.............................................................................................................................................................................................. 26

6.3 ALARMS .................................................................................................................................................................................................. 28

6.3.1 Events (alarms and messages).......................................................................................................................................................... 29

6.3.2 Alarms list.................................................................................................................................................................................................... 29

6.3.3 Messages list.............................................................................................................................................................................................. 32

6.3.4 Event report LP 33U Series................................................................................................................................................................... 34

6.4 SETUP ......................................................................................................................................................................................................35

6.5 COMMANDS.......................................................................................................................................................................................... 40

7 OPERATION.................................................................................................................................................. 41

7.1 PROCEDURES FOR SINGLE LP 33U Series ............................................................................................................................... 41

7.1.1 Start-up of the LP 33U Series.............................................................................................................................................................. 41

7.1.2 UPS shutdown with load transfer on manual bypass (Q2)................................................................................................... 45

7.1.3 From Manual Bypass Q2 to normal function VFI...................................................................................................................... 47

7.1.4 Complete UPS shutdown...................................................................................................................................................................... 48

7.1.5 Restore to normal operation after “Total Off”............................................................................................................................. 49

7.1.6 Restore to normal operation after “EPO – Emergency Power Off”.................................................................................... 50

7.2 PROCEDURES FOR LP 33U Series PARALLEL SYSTEM........................................................................................................ 51

7.2.1 LP 33U Series Parallel System start-up........................................................................................................................................... 51

7.2.2 Parallel UPS shutdown with load transfer on manual bypass (Q2)................................................................................... 55

7.2.3 From Manual Bypass Q2 to normal function VFI...................................................................................................................... 57

7.2.4 Separate (shutdown) a UPS unit from the Parallel System (System Redundancy).................................................... 58

7.2.5 Reconnect a UPS unit to a Parallel System.................................................................................................................................. 59

7.2.6 Complete Parallel System shutdown.............................................................................................................................................. 60

7.2.7 Restore to normal operation after “Total Off”............................................................................................................................. 61

7.2.8 Restore to normal operation after “EPO – Emergency Power Off”.................................................................................... 62

8 OPTIONS....................................................................................................................................................... 63

8.1 OPTIONS GENERAL VIEW................................................................................................................................................................ 63

9 MAINTENANCE ............................................................................................................................................ 64

9.1 GENERAL MAINTENANCE................................................................................................................................................................ 64

9.2 COOLING FAN MAINTENANCE...................................................................................................................................................... 64

9.3 BATTERY MAINTENANCE................................................................................................................................................................. 64

9.4 SERVICE REQUIRED ...........................................................................................................................................................................64

10 NOTES ........................................................................................................................................................... 65

10.1 NOTES FORM........................................................................................................................................................................................ 65

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1 SAFETY RULES

With this document, GE gives all the necessary information about the correct use of the UPS to the user.

We recommend that this manual be kept next to the UPS for future references.

If any problems are encountered with the procedures contained in this manual, please contact the nearest Service Center before you proceed.

All UPS installation, maintenance and service work should be performed by qualified service personnel only.

The KNOWLEDGE and the FULLY compliance of the safety instructions and the warning contained in this manual are

THE ONLY CONDITION

to avoid any dangerous situations during installation, operation, maintenance work, and to preserve the maximum reliability of the UPS system.

NOTE !

LP 33U Series / 50 & 60 kVA is a FCC Class A-UPS Product.

Refuses any responsibility in case of non-observance, unauthorized alterations or improper use of the delivered UPS.

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SAVE THESE INSTRUCTIONS

This manual contains important instructions for models LP 33U Series / 50 & 60 kVA that should be followed during installation and maintenance of the UPS and battery.

GENERAL

- Move the UPS in an upright position in its original package to the final destination room.

- Check for sufficient floor and elevator loading capacity.

- Check the integrity of the UPS equipment carefully. If you notice visible damage, do not install or start the UPS. Contact the nearest Service Center immediately.

- WARNING! RISK OF ELECTRICAL SHOCK: Do not remove covers; there are no user serviceable parts inside.

- After switching off takes 5 minutes for the DC capacitors to discharge because a lethally high voltage remains at the terminals of the electrolytic capacitors.

- All maintenance and service work should be performed by qualified service personnel. The UPS contains its own energy source (battery).

- The field-wiring terminals may be electrically live, even when the UPS is disconnected from the utility.

- Dangerous voltages may be present during battery operation. The battery must be disconnected during maintenance or service work.

- This UPS contains potentially hazardous voltages.

- Be aware that the inverter can restart automatically after the utility voltage is restored.

STORAGE

- Store the UPS in a dry location; storage temperature must be within -13°F (-25°C) to 131°F (55°C).

- If the unit is stored for a period exceeding 3 months, the battery must be recharged periodically (time depending on storage temperature).

BATTERY

- The battery-voltage is dangerous for person’s safety.

- When replacing the battery, use the same cells number, voltage (V), capacity (Ah). All the battery used, shall be of the same manufacturer and date of production.

- Proper disposal or recycling of the battery is required. Refer to your local codes for disposal requirements.

- Never dispose of battery in a fire: They may explode.

- Do not open or mutilate battery: Their contents (electrolyte) may be extremely toxic. If exposed to electrolyte, wash immediately with plenty of water.

- Avoid charging in a sealed container.

- Never short circuit battery. When working with battery, remove watches, rings or other metal objects, and only use insulated tools.

- In case of air shipment, the cables +/- going to the battery fuses/terminals shall be disconnected and isolated.

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Safety symbols and warnings

Safety warnings The text of this manual contains some warnings to avoid risk to the persons and to avoid damages to

the UPS system and the supplied critical loads.

The non-observance of the warnings reminding hazardous situations could result in human injury and equipment damages.

Please pay attention to the meaning of the following warnings and symbols.

Throughout this manual the following symbols are defined:

WARNING, if instruction is not followed injury or serious equipment damage may occur!

CAUTION, internal parts have dangerous voltage present. Risk of electric shock!

PE (Earth) – GND (Ground) PROTECTIVE GROUNDING TERMINAL: A terminal which must be connected to earth ground prior to making any other connection to the equipment.

A terminal to which or from which an alternating (sine wave) current or voltage may be applied or supplied.

A terminal to which or from which a direct current or voltage may be applied or supplied.

This symbol indicated the word “phase”.

This symbol indicates the principal on/off switch in the on position.

This symbol indicates the principal on/off switch in the off position.

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2 LAYOUT

2.1 LAYOUT LP 33U Series / 50 & 60 kVA

Fig. 2.1-1 General view – UPS only Fig. 2.1-2 General view – UPS only - with front door open

Fig. 2.1-4 Control panel

Fig. 2.1-3 General view – UPS with Battery Cabinet

Fig. 2.1-5 Q1 & Q2 switches

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Fig. 2.1-6 General view with open door – UPS with Battery Cabinet

BC Battery cabinet

CI Customer Interface Board (optional)

FTM3 Battery Breaker

Q1 UPS output switch

Q2 Manual bypass switch

RC Relay card

SNMP Advanced SNMP Card (optional)

RS232 Serial port RS232

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3 INTRODUCTION

3.1 GENERAL DESCRIPTION

The LP 33U Series Uninterruptible Power Supply (UPS) provides the energy supply for critical loads which need a reliable, continuous, and free from ‘voltage disturbances and frequency fluctuations’ supply.

In case the utility fails, or it exceeds the permitted tolerances, the energy to supply the load is furnished by the battery with a backup time dependent on its capacity, until the utility recovers.

LP 33U Series is a truly VFI double conversion Uninterruptible Power Supply (UPS), equipped with automatic bypass, where the load is normally supplied by the inverter.

LP 33U Series can be configured, if chosen, for the ECO Mode permitting the maximum energy saving.

The main typical performances of the LP 33U Series system are the following:

• VFI (Voltage Frequency Independent) double conversion technology to provide an excellent

quality power supply.

• Input power factor >0.98.

• Input current THD <10%.

• Automatic bypass and manual bypass to improve reliability and maintenance.

• Microprocessor controlled supervision.

• Dual AC inputs (optional).

• ECO Mode operation.

• Compact and agreeable design expressly conceived for “Office environment”.

• Low level acoustic sound, 65 dB (A) (50 & 60 kVA) to avoid noise to the persons operating in the

same environment.

• Multi-language LCD screen.

• Total battery management: SBM (Superior Battery Management)

• High battery capacity, 9 minutes (50 kVA) and 8 minutes (60 kVA), with battery housed in the

UPS cabinet.

• Wide rectifier input voltage tolerance: 177 - 229 VAC (Line-Line).

• Wide rectifier input frequency tolerance: +/-10% (54 - 66 for 60 Hz).

• RPA (Redundant Parallel Architecture) up to 4 units.

• GE Connectivity.

• Compliance with UL standard 1778.

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4 DESCRIPTION

4.1 BLOCK DIAGRAM AND MAIN ELEMENTS DESCRIPTION

Fig. 4.1-1 UPS block diagram

The Uninterruptible Power Supply System LP 33U Series / 50 & 60 kVA can be divided into the following main elements:

Electronics

The UPS is designed with a microprocessor–controlled supervision and diagnostic system. Communication between user and UPS is achieved by the front panel consisting of an LCD screen, displaying the operation modes, the measurements and the events / alarms.

Rectifier

The rectifier converts the 3-phase mains voltage into a controlled and regulated DC-voltage, in order to supply power to the booster, and to charge the battery through the battery-charger.

Inverter

The inverter converts the DC voltage into a three-phase AC-voltage with constant amplitude and frequency, which is completely independent from the AC-input voltage.

Automatic Bypass

The automatic bypass consists of a static semiconductor-switch (SSR: Static Switch Relay), used to provide an uninterrupted transfer of the load from inverter to mains when operating in VFI Mode. If chosen the ECO Mode, the SSM transfer the load from mains to inverter in case the utility fails.

Back-Feed Protection

All LP 33U Series UPS’s are equipped with an automatic system for the protection against voltage back feeding towards Utility, through the Bypass (Applied Standard IEC 62040-1). This protection works automatically by opening contactor K6 (in series with the thyristors of the static switch) and eventually K7, and acts in case of internal defects of the system, or due to wrong manipulations on the maintenance bypass Q2.

Manual Bypass

The manual bypass consists of a pair of manual switches Q1 and Q2, which allow the isolation of the UPS from the load, while still supplying the load with power directly from the mains.

Battery The battery, normally stored by the battery-charger, supplies the DC energy to inverter in the event of mains failure.

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4.2 OPERATION MODES

This section describes the different possible operation modes of the UPS explaining the function of the main modules of the UPS.

VFI (Voltage Frequency Independent) mode operation

Under normal conditions the load is permanently powered by the inverter with constant amplitude and frequency.

The rectifier, powered by the utility, supplies the

inverter and the battery-charger keeps the battery fully charged.

Fig. 4.2-1 Energy flow in VFI Mode operation

The inverter converts the DC voltage in a new AC sine wave voltage with constant amplitude and frequency independently from the input utility power.

ECO Mode operation (Intelligent Energy Management)

When the ECO Mode is selected, and the utility power is available, the load is normally powered through the automatic bypass.

When the utility voltage is detected out of the prescribed tolerances, the load is automatically transferred to the inverter.

When the utility recovers, the load returns to the automatic bypass after a variable time defined by the control unit.

Fig. 4.2-2 Energy flow in ECO Mode operation

The ECO Mode can be configured directly by the user for higher efficiency, considering the utility reliability and criticality of the load.

The selection between the two operation modes “VFI Mode and ECO Mode”, or switching between operation modes at required time, can be done through the UPS control panel (see Section 5.3).

In case of parallel system

ECO Mode cannot be enabled for RPA Parallel System.

Attention: A single unit equipped with a RPA - Parallel board, must be considered as parallel, thus

disabling ECO Mode.

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Automatic bypass operation

In VFI (Voltage Frequency Independent) operation mode, the load is permanently supplied by the inverter but, in case of trouble on the inverter, or when overload or short-circuit on the output occur, if the utility voltage do not exceed the admitted tolerances, the load is instantly transferred to the utility through the automatic bypass, taking advantage of the higher short circuit power.

Fig. 4.2-3 Energy flow in automatic bypass operation

When the inverter recovers, the load will be re-transferred automatically to the inverter.

In case of parallel system

Each unit has its own bypass.

All the bypasses in the system work together, their control being managed in the same manner by all units.

The units are continuously exchanging information before taking such decision. In case the inverter of one unit fails, its bypass remains operating. It is excluded only if the unit is separated from the common bus by opening its output switch Q1.

Utility recovery operation

As soon as the ‘utility’ recovers, the rectifier starts up automatically supplying the inverter and the battery-charger recharges the battery.

In case the inverter has been shut down following a complete discharge of the battery, when the utility recovers the system start up automatically.

Fig. 4.2-4 Energy flow at utility recovery operation

When the energy stored in the battery is sufficient to ensure a minimum time of operation with the actual load, in case of a future utility failure, the load will be retransferred to inverter (if selected VFI Mode).

In case of parallel system

When the AC input power recovers, the rectifiers will start up sequentially according to their number in the parallel system in order to avoid an initial inrush current.

The inverters will start up automatically, but only when the battery has recharged enough for a

minimum runtime with the present load. When enough inverters to supply the load have been restarted, the load will be transferred from the

automatic bypass back to the inverter bus bars.

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Manual bypass operation

The manual bypass circuit consisting of Q1 and Q2 manual switches permits the transfer of the load directly to the utility without interruption,

leaving the UPS galvanically separated from the output load.

This type of operation is normally used when the UPS system must be completely turned off for maintenance or reparation.

Fig. 4.2-5 Energy flow in manual bypass operation

Utility failure operation

In the event of a utility power failure, the rectifier and the battery-charger turn OFF,

while the inverter continues to supply the load without interruption using the energy stored in the battery.

During the battery discharge, the LCD screen displays the remaining autonomy, based on the battery capacity and the applied load.

Fig. 4.2-6 Energy flow during utility failure operation

In the event of an extended utility failure, before the battery is fully discharged, the alarm “stop operation” warns the user that the UPS will start the shutdown procedures when the indicated time

expired (normally 3 minutes).

In case of parallel system

With parallel system for power capacity:

• With the bypass utility power available as the warning “battery low” occurs on one unit, after

timeout (selectable) the load is transferred to utility.

• With missing bypass utility power as the warning occurs on one unit, the system starts the

timeout (selectable) of “Stop operation” and then the output load shuts down.

With redundant parallel system:

• As the warning battery low occurs on one unit unnecessary to support the present load, after timeout (selectable) this unit shuts down and the load is shared between the other units. As the warning occurs on one unit necessary to support the present load, the system starts the timeout (selectable) of “stop operation” and then the output load shuts down.

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4.3 RPA PARALLEL SYSTEM

The RPA (Redundant Parallel Architecture) allows to extend the unit to a parallel system with 2, 3, or 4 units LP 33U Series connected on the same bus, which ensure the highest reliability rate and increase the power availability.

Parallel system for power capacity

Two or more units can be paralleled in order to achieve output power superior to the maximum power delivered by a single UPS unit. The maximum total load shared between the n parallel units can achieve the 100% of the installed nominal power system. In the event of one unit fails, the load will be suddenly transferred to the mains by the bypass.

Parallel system for redundancy

The parallel system can be defined redundant only in case the nominal power rating of n-1 units of n parallel units is sufficient to supply the required load power.

Digital Energy

Battery System

Digital Energy

UPS System

Digital Energy

Battery System

Digital Energy

UPS System

Digital Energy

Battery System

Digital Energy

UPS System

Digital Energy

Battery System

Digital Energy

UPS System

Fig. 4.3-1 RPA system diagram

The load in a parallel redundant system, is equally shared by n units connected on the output bars. Should one of the parallel units trip off-line, the remaining (n-1) units will share the load maintaining the applications protected by inverter until the normal situation restores.

Load sharing between parallel units The control bus exchanging the data between the microprocessors of the paralleled units provide for a

constant proportional load sharing in every load condition.

Management and synchronization of the parallel system

All the units are identical without master and slaves. One unit is arbitrarily selected as the reference (the first unit connected on power bus) being this unit the first synchronized with the mains voltage, and all the other units synchronize with the first one. In case the reference unit fails or it is excluded from the parallel power bus any other unit will take over the reference role. The AC input power source of all the bypasses must be the same for all the units of the parallel system excluding any phase shift between them.

Control bus of the parallel system A high-speed serial bus, guarantees communication, synchronization and load sharing between the

UPS modules. Each module controls it’s own function, while the Master (each unit can be Master) controls and commands the status of the system.

NOTE !

The parallel system excludes more rectifiers connected on common battery. No transformers, fuses or automatic circuit breakers should be inserted between the unit’s output and the load common bus bars.

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4.4 UPS PARALLELED ON THE SAME BATTERY

NOTE !

A parallel system with a Common Battery for two or more UPS, requires a particular installation and adequate setting of some parameters, (accessible only through password), and can therefore only be done by a qualified GE engineer.

Usually each UPS Unit runs with its own Battery. In case of parallel units running with a Common Battery (max. 4 UPS - see Fig. 3.4-1), the sharing circuit between the individual UPS is integrated in the communication bus of the system in order to assure an equal sharing of the Rectifiers output currents.

Fig. 4.4-1 Diagram RPA system with UPS on common battery

1 –

2 –

3 –

4 –

5 –

6 –

7 –

8 –

Rectifier

Inverter

Automatic Bypass

Manual Bypass

Mains Power

Load Bus Bar

External Battery Fuse

Battery

Pay attention to the following recommendations:

• The units delivered for this functioning mode needs a special parameters setting, so they must be prepared in advance before the installation.

• The installation must be performed only with the UPS system completely shut down.

• The AC Rectifiers input power (5) must be the same, with clockwise phase rotation for each unit.

• Each Rectifier must be set for the same floating DC voltage and the same Battery current limitation.

• It is mandatory to install the fuses / MCB (7) on each line connecting the Rectifiers to the common

Battery for maintenance / safety reasons (see Section 4.7.2).

• In case a unit must be powered down for maintenance, switch-OFF the concerned unit before open the DC fuses / MCB on the Battery line (7).

• If an emergency generator set supplies the UPS, and the free contact “Generator ON” is connected to the Customer Interface, connect a separate NO free contact on each parallel unit.

• Do not connect the temperature sensor for automatic battery floating voltage compensation.

• Do not enable the function Boost charge.

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4.5 SERVICE AND TECHNICAL SUPPORT

For any request of technical support please contact the supplier who provided the system.

Stamp of your Dealer or local responsible of the Technical Assistance

(see page 3)





Fig. 4.5-1 Identification label

The requested data permitting to identify your UPS are marked on the identification label fixed on the front of the cabinet, behind the lower front door.

For fast and efficient Technical Support solutions, please mention the data marked on the identification label.

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4.6 RECYCLING AT THE END OF SERVICE LIFE

NOTE !

This product has been designed to respect the environment, using materials and components respecting eco-design rules.

It does not contain CFCs (chlorofluorocarbons) or HCFCs (hydrochlorofluorocarbons).

GE, in compliance with environment protection recommends to the User that the UPS equipment, at the end of its service life, must be

recovered conforming to the local applicable regulations.

WARNING !

Leads contained in the batteries is a dangerous substance for the environment, therefore it must be correctly recycled by specialized companies!

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5 SYSTEM HANDLING

5.1 CONTROL PANEL

Fig. 5.1-1 Control panel

The control panel, positioned on the UPS front-top, acts as the UPS user interface and comprises of the following elements:

• Back lit Graphic Display (LCD) with the following characteristics:

− Multilanguage communication interface:

English, German, Italian, Spanish, French, Finnish, Polish, Portuguese, Czech, Slovakian, Chinese, Swedish, Russian and Dutch.

− Synoptic diagram indicating UPS status.

• Command keys and parameters setting.

• UPS status control LED.

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5.2 TABLE OF FUNCTIONS AND INDICATIONS ON CONTROL PANEL

Key to switch the Inverter ON ( I )

Key for Inverter shutdown ( O )

Press key to transfers the Load to Utility. Keep pressed for 5 seconds to shutdown the Inverter. This key is also used as the EPO (Emergency Power Off) reset.

Key “Total Off”

The key “Total Off” is protected by a transparent cover. By pressing it, you immediately separate the UPS from the Load.

It is possible to activate the command “Total Off” using the following screen: COMMANDS / REQUEST TOTAL OFF. See Section 6.5.

Attention: “TOTAL Off” cannot disconnect the UPS from the Load with Q2 closed.

`Home\Commands

COMMANDS

RESET TOTAL OFF

REQUEST TOTAL OFF

To reset “Total Off”

Restore the command “Total Off” by entering the screen:

COMMANDS / RESET TOTAL OFF



For Parallel System: if “Total Off” is pressed on one unit connected to

the parallel bus (switch Q1 closed), all the units are separated from the load. The “Total Off” reset must be done only on one unit connected to the parallel bus (switch Q1 closed).

NOTE !

Special care must be taken in using this command, in order to avoid accidental load disconnection.

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LED Stop Operation (red color)

It warns about the imminent inverter stop (default parameter = 3 min.) and the consequent load shutdown as result of:

• The battery is fully discharged and the load cannot be transferred on utility.

• Over temperature or overload condition (>125%) and the load cannot be

transferred on utility.

LED Alarm (yellow color)

It blinks when one or more alarm is activated. The internal buzzer is ON. The LED Alarm remains lit (with the alarm condition still present) and the buzzer

stops when the key “MUTE” is pressed. LED Alarm is lit when the load is not protected by UPS or in case Q1 is open.

LED Operation (green color)

When lit, indicates that the UPS is functioning correctly and the load is system protected (Load supplied either from inverter or from Automatic Bypass in case of ECO Mode functionality).

When blinking, indicates that a regular maintenance service is needed (SERVICE REQUIRED). May be reset by a service technician only. See Section 9 – Maintenance – Service check.

The LED is OFF when the output switch Q1 is open, indicating that the Inverter is in service mode, not supplying the load.

User LCD Interface

The user interface consists of a Back lit Graphi

Display (LCD) having:

• Synoptic diagram indicating UPS status.

• UPS operating, AC and DC metering

information.

• History of events (alarms and messages).

• Functionality can be programmed to meet

customer needs by changing parameters.

• Operation commands of the UPS.

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5.3 SWITCHES

Q1 - UPS output switch

Q2 - Manual bypass switch

NOTE !

Do not switch ON Q1 and Q2, while Inverter is ON.

Fig. 5.3-1 Q1 and Q2 switches

NOTE !

Mains failure of long duration or low Battery voltage will cause the automatic shutdown of the UPS, thus preventing damage to the Battery.

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6 LCD SCREEN

6.1 HOME SCREEN

Fig. 6.1-1 LCD display

The keys perform the following functions:

METER

METERING View electric parameters values and statistics of use.

See Section 6.2.

ALARM

ALARMS Shows in chronological order, all the events occurred (alarms,

messages, commands, handling, etc.). See Section 6.3.

MUTE Key to reset general alarm and buzzer.

SETUP

SETUP Allows the user to customize some UPS functions to specific

requirements and to view UPS identification data. See Section 6.4.

CMDS

COMMANDS Allows the user to execute UPS operation commands.

See Section 6.5.

The LCD screen, after 5 minutes of inactivity, shuts down the backlight. To reactivate it, it is sufficient to press any keys.

If the keypad remains inactive for 5 minutes or longer, during the viewing of a screen such as MEASURES, ALARMS, SETUP or COMMANDS, the LCD screen returns automatically to the main screen.

It is possible to view any key functional description by pushing the key for more than 3 seconds.

Pushing the key “MEASURES” and “ALARMS” together automatically sets the LCD communication for “ENGLISH”.

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LP Series S1 60kVA

UPS Model UPS series number UPS nominal rating (kVA)

Battery level LED

All LED light indicate a battery autonomy of 100%.

LED A Fixed: indicates battery autonomy between 6% and 25%.

Blinking: indicates battery autonomy ≤5%.

LED A, B Indicate battery autonomy between 26% and 50%. LED A, B, C Indicate battery autonomy between 51% and 99%. Min: Battery autonomy time in minutes estimates with actual load.

Load level LED

All LED Off indicate a load status at ≤25%. LED A Indicates a load level between 26% and 50%. LED A, B Indicate a load level between 51% and 75%. LED A, B, C Indicate a load level between 76% and 100%. LED A, B, C, D Indicate a load level between 101% and 124%. LED D blinking Indicates a load level ≥125%.

Fig. 6.1-2 LEDs on synoptic diagram

LEDs on synoptic diagram

LED 1 Utility rectifier OK LED 2 Utility bypass OK LED 3 Rectifier ON LED 4 Discharging battery LED 5 Booster ON LED 6 Charge battery ON LED 7 Inverter available LED 8 Inverter ON LED 9 Q1 closed LED 10 Automatic bypass ON LED 11 Manual bypass Q2 ON LED 12 Load on UPS

Examples of typical scenarios in the synoptic diagram:

Load supplied by inverter Load supplied by automatic bypass

Load supplied by manual bypass Q2 Load supplied by battery

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6.2 METERING

The METERING mode is entered any time the “METER” key is pressed. The LCD screen will indicate a series of screenshots showing the measures of all electric parameters like AC, DC and various statistics.

In this mode the keys perform the following functions:

Return to HOME screen.

Scrolls backward to the previous screen.

Scrolls forward to the next screen.

It is possible to view any key functional description by pushing the key for more than 3 seconds.

`Home\Meter

BATTERY

Vp 164 V Vn 164 V T +25° C Charge level 80 % Autonomy 8 Min Charger mode Off

Battery data screen

Vp Voltage of positive (+) battery string.

Vn Voltage of negative (-) battery string.

T The temperature of the battery (“SENSOR DISABLE”

indicates sensor disabled).

Charge level The battery charge level.

Autonomy The estimated backup time with the

present load.

Charger mode The functionality of SBM (Superior Battery Management) can help to reduce the battery

recharging time, and improve the lifetime of the battery. Beside the indication of the battery voltage on the display, a letter shows, according to the table below, the operational status of SBM:

Abbreviation Status of charger Charger voltage Description

Off

OFF 0 Vdc Battery open circuit voltage

Top

ON Boost (176 Vdc) Boost charge with new Battery

Float

ON Floating (164 Vdc) Battery charged

Low

ON Floating (164 Vdc) Normal charge

Boost

ON Boost (176 Vdc) Boost charge

Equalize

ON Boost (179 Vdc) Battery equalization

Access to the Parameters for setting the SBM mode is password protected. Please call your Service Center.

`Home\Meter

BOOSTER

f : 60.0 Hz L1 : 120 V L2 : 120 V L3 : 120 V Vp : 215 V Vn : 215 V

Booster data screen

f The input frequency of the rectifier.

L1 L2 Input line voltage L1, L2 and L3 phases.

Vp Voltage of positive (+) booster string.

Vn Voltage of negative (-) booster string.

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`Home\Meter

UTILITY

f 60 Hz L1 120 V L2 120 V L3 120 V

BYPASS FREE

Bypass utility data screen

f The frequency of the utility.

L1 L2 3-phase utility voltage PHASE /NEUTRAL. L3

Bypass Bypass status: FREE / LOCKED.

`Home\Meter

INVERTER

f 60 Hz L1 120 V L2 120 V L3 120 V T OK

SYNCHRONIZED

Inverter data screen

f The output frequency of the Inverter.

L1 L2 3-phase output voltage PHASE/NEUTRAL. L3

T The temperature of the inverter bridge (OK / MAX).

The synchronization status of the inverter with respect to utility (Synchronized / Not Synchronized).

`Home\Meter

MODULE LOAD

L1 : 120 V 56.0 A 50 % L2 : 120 V 56.0 A 50 % L3 : 120 V 56.0 A 50 %

LOAD ON INVERTER

Module load screen

… V Output voltage PHASE/NEUTRAL for each phase.

… A The output current as RMS values (RPA: value for

each UPS).

… % The output load as percentage (RPA: value for each

UPS).

The source of the power supplied to the load.

`Home\Meter

COUNTERS

Bypass utility failure : 53 Rectifier utility failure : 35 Overloads : 15 InvOperTime [h] : 2135 UPSOperTime [h] : 3125

Statistics screen

The total number of minor utility faults (bypass utility out of tolerance faults).

The total number of times a gap of utility in the rectifier has been reordered.

The total number of detected output overloads.

The total operating time for the Inverter (in hours).

The total operating time for the UPS (in hours).

`Home\Meter

UTILITY

NUMBER OF FAST TRANSIENTS <2ms >2ms >5ms >10ms 25 20 7 5

ECO MODE RATE = 70 %

ECO Mode statistic screen

This screen is enabled only for a single UPS, not for an RPA Parallel System.

The number of fast transients occurred on the bypass utility on the last seven days.

The statistic evaluation in % (100= good; 0= bad) of the utility, for the ECO mode operation.

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6.3 ALARMS

The ALARMS mode is entered any time the “ALARM” key is pressed.

The LCD will display a series of screens corresponding to the last 255 events, two events per screen (LEVEL 1 USER).

In this mode the keys perform the following functions:

Return to HOME screen.

Scrolls backward to the previous screen.

Scrolls forward to the next screen.

Move forward to the following event.

Move back to the following previous event.



Confirm the selection made.

It is possible to view any key functional description by pushing the key for more than 3 seconds.

The events displayed are the standard GE events as described in the Section 6.3.1 - EVENTS (Alarms and Messages).

`Home\ Alarm

ALARM

LEVEL 1

USER

LEVEL 2

SERVICE



Alarms screen

LEVEL 1 USER

Chronologically view 2 events per screenshot.

LEVEL 2 SERVICE

Chronologically view 5 events per screenshot with service related info.

`Home\Alarm\User

NR = 255 06.05.2008 15.37.25 C = 4404 K6 CLOSING FAILURE S = 00008180 NR = 254 06.01.2008 12.45.57 C = 4583 COMMAND TO SYNCHRONIZE S = 00008180

Screen of user alarms

NR Number chronologically assigned to an event (Nr.

255 is the more recent, Nr. 1 is the first). Date and exact hour of the moment when the event occurred.

C Number of standard GE code of the event and an

explicit text describing the event in the selected languages.

S Status code of the UPS.

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6.3.1 Events (alarms and messages)

Each of the following listed events, alarm or message, can be displayed on the LCD screen, on a PC with the software “GE Data Protection” installed or with the monitoring system “GE Power Diagnostic”.

Alarms and Messages are differently specified because the alarms are indicating an abnormal functioning of the UPS (which are additionally signaled with the LED Alarm and acoustically with the buzzer), while the messages indicate the various states of operation of the UPS (stored in the events list, but not activating the LED Alarm and the acoustical alarm).

6.3.2 Alarms list

Code Alarm Meaning

4000

SETUP VALUES LOST

Parameters are lost and have been replaced with default values.

4001

REGULATION BOARD FAILURE

Voltage supply +/-15 Vdc has been detected out of tolerance on the P2 - Mainboard or the programmable circuits are defective.

4100

RECTIFIER FUSES FAILURE

The trip indicator mounted on rectifier input fuses indicates a blown fuse. The rectifier is turned Off (K4 open) and the load will be supplied by the battery.

4102

K4 CLOSING FAILURE

K4 not closed despite a closing command being done. The rectifier is switched OFF.

4103

K4 OPENING FAILURE

K4 not open despite an opening command being done. The rectifier is switched OFF.

4110

RECTIFIER UTILITY OUT

OF TOLERANCE

Rectifier input utility has been detected out of tolerance (voltage, frequency or phase).

4115

LOW BATTERY VOLTAGE

The battery has been discharged and reached “stop operation” time-out (default 3 minutes), the inverter will be shut down. It restarts automatically only when the battery has recovered energy to ensure min. a “stop operation” time to the actual load.

4116

HIGH BATTERY VOLTAGE

Dangerous high DC-Voltage. Causes Inverter shutdown. Inverter restarts automatically after return to normal floating voltage.

4118

BATTERY FAULT

During battery test the DC voltage falls under the critical level. If the boost voltage has not been reached within 24 hours, then the charge voltage returns to floating voltage. Battery test is stopped.

4130

TURN ON RECT.

OR SHUTDOWN UPS

Rectifier and inverter are OFF. The DC power supply is discharging the battery slowly. Rectifier must be restarted or battery must be disconnected in order to avoid damages.

4140

RECTIFIER CONTROL FAILURE

Rectifier voltage hasn’t reached the set value. Probably fault on regulation loop. The DC capacitors are not equally charged (more of 50 Vdc of difference). The rectifier is switched OFF.

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Code Alarm Meaning

4301

INVERTER FUSES FAILURE

Inverter output fuses blown. Signaled by electronic detector. Inverter can be started manually after replacement of fuses.

4304

K7 CLOSING FAILURE

K7 not closed despite a closing command being done. Signaled by auxiliary contact. The load will be supplied by utility.

4305

K7 OPENING FAILURE

K7 not open despite an opening command being done. Signaled by auxiliary contact. The load will be supplied by utility.

4312

INV. VOLTAGE OUT

OF TOLERANCE

Inverter output voltage is out of the tolerances defined in respective parameter (±10%). Inverter is switched OFF.

4320

ISMAX DETECTION

Detection of inverter bridge (Is) current limitation cause inverter OFF and possible automatic restart. After 3 times inverter switches OFF for persistent Is max detection in time. Inverter switch OFF, and it can be restarted manually.

4340

INVERTER CONTROL FAILURE

The slave oscillator is not synchronized with the master, thus causing the shutdown of it’s inverter.

4347

OSCILLATOR FAILURE

Auto calibration of the Inverters free run frequency was not possible. The oscillator frequency of this unit is out of tolerance.

4402

RECTIFIER CANNOT BE

TURNED ON

The rectifier cannot be turned on because the DC link voltage has not reached the requested value.

4404

K6 CLOSING FAILURE

K6 not closed despite a closing command being done. Signaled by auxiliary contact. The load cannot be supplied by electronic bypass.

4405

K6 OPENING FAILURE

K6 not open despite an opening command being done. Signaled by auxiliary contact.

4410

BYPASS UTILITY OUT

OF TOLERANCE

The utility bypass voltage is out of the tolerances (±10%). K6 opens, synchronization with utility is inhibited and transfer to utility is blocked.

4520

NO INVERTER POWER

The load supplied by utility is over 100%. The load remains blocked on utility as long as alarm overload is active.

4530

LOAD LOCKED ON UTILITY

Load is locked on utility because 3 transfers on utility have been detected in a short time (default 30 seconds). Transfer will be free again after a time defined by respective parameter (default 30 seconds).

4531

LOAD ON UTILITY

BY ERROR DETECTOR

Load is transferred to utility because the error detector detected a disturbance on the output voltage.

4563

EMERGENCY OFF ACTIVATED

Alarm after detection of an Emergency Off from an external safety device connected on Customer Interface. Consequently K4, K6 and K7 open and shut down inverter, booster and rectifier.

4570

OVERLOAD

The UPS-System is in an overload condition >125% on inverter, or >150% on utility. A sequence of “stop operation” starts. Time out depending on load quantity.

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Code Alarm Meaning

4571

OVERLOAD: LOAD ON UTILITY

With utility bypass supply available and load >115%, the load is transferred on utility. Load will be transferred again automatically on inverter when load will be <100%.

4581

INVERTER AND UTILITY

NOT SYNCHRONIZED

The voltages of utility and inverter are not synchronized, which causes the opening of K6.

4697

BATTERY OVERTEMPERATURE

The battery temperature exceeds the value inserted in parameter. Disabled with parameter (service only).

4698

BATTERY POWER INSUFFICIENT

In case of utility failure, with the actual load, the autonomy time would result below “stop operation” time (default 3 minutes).

4700

DC LOW

Battery voltage is at the lowest limit. Shutdown of inverter until the battery voltage reaches the value in respective parameter.

4900

LOAD LOCKED ON INVERTER

The load is locked on Inverter following 3 load transfers within 30 seconds. After time out of the value in respective parameter (default 30 seconds), bypass will be free.

4955

OVERTEMPERATURE

An over temperature condition has been detected on inverter. Elapsed “stop operation” time, inverter shutdown. With utility available, load is transferred on utility.

4998

LOAD OFF DUE TO

EXTENDED OVERLOAD

Load Off after time-out of “stop operation” for overload on inverter or bypass (time depending on the % of overload).

4999

LOAD OFF DUE

TO LOW BATT. OR TEMP.

Load Off after time-out of “stop operation” with missing utility due to battery low voltage or over temperature condition.

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6.3.3 Messages list

Code Message Meaning

4111

RECTIFIER UTILITY OK

Rectifier input utility is again within the acceptable tolerance (voltage, frequency and phase).

4114

UPS SHUTDOWN

(LOW BATTERY VOLTAGE)

The UPS is in Load OFF status, resulting in Battery supply for the power supply. Should the Battery voltage decrease to a value below of the one set in a parameter, then power supply will shutdown to avoid damage to the Battery

4119

BATTERY TEST STARTED

Start of manual or automatic battery test. Rectifier output voltage is decreased to the value defined by respective parameter.

4120

BATTERY TEST STOPPED

End battery test. End of manual or automatic battery test. Rectifier output voltage is restored to floating voltage.

4141

ISMAX DETECTION RECTIFIER Detection of persistent booster (Is) current limitation.

4161

RECTIFIER ON Rectifier received the command to switch ON.

4162

RECTIFIER OFF

Rectifier received the command to switch OFF for: input utility out of tolerance / EPO / DC-Voltage max.

4163

GENERATOR ON

Customer Interface (X1 / 11, 22) received a Gen set ON signaling. Operating mode dependent on setting of respective parameters.

4164

GENERATOR OFF

Customer Interface (X1 / 11, 22) received a Gen set OFF signaling. Function bypass enabled dependent on setting of respective parameter.

4302

INVERTER CANNOT BE

TURNED ON

Inverter cannot be switched on because one of the following conditions are still present:

- Over temperature

- Low battery voltage

- Inverter fuses

- Overload

- K7 opening failure

- High battery voltage

- DC low

- EPO (Emergency Power Off)

4303

INVERTER CANNOT BE

TURNED OFF

Inverter cannot be switched OFF, because the load cannot be transferred on utility (voltage out of tolerance, not synchronizing, bypass blocked).

4361

INVERTER ON

The command to start the inverter has been activated on the control panel.

4362

INVERTER OFF

The command to switch OFF the inverter has been done by the control panel or automatically for alarm detection.

4411

BYPASS UTILITY OK

Bypass input utility is again within the admitted tolerance (Voltage, frequency and phase).

4500

COMMAND TOTAL OFF

Disconnection of the load by opening K4, K6 and K7 for: EPO / Total Off / Overload / Stop operation.

4521

NO BYPASS POWER

With the load supplied by electronic bypass, a utility failure or K6 opening occurred.

4534

MULTIPLE LOAD TRANSFER

2 transfers inverter-utility have been detected in a short time, defined by respective parameter (default 30 seconds).

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Code Message Meaning

4535

BYPASS LOCKED

Transfer on utility not enabled due to settings of respective parameters. Contactor K6 is open.

4536

BYPASS FREE

Settings of respective parameters enable bypass transfer on utility. Contactor K6 can be closed.

4561

TOTAL OFF

Key Total Off behind the front door has been pressed, with the output circuit breaker Q1 closed.

4562

DETOUR ON

The auxiliary contact indicates that manual bypass Q2 has been closed.

4564

DETOUR OFF

The auxiliary contact indicates that manual bypass Q2 has been opened.

4567

COMMAND LOAD ON UTILITY

The control unit received a command to transfer the load on utility.

4568

COMMAND LOAD ON INVERTER

The control unit received a command to transfer the load on inverter.

4572

NO MORE OVERLOAD

End of the overload condition previously detected with alarm 4570.

4580

INVERTER AND UTILITY

SYNCHRONIZED

The voltages of inverter and utility bypass are synchronized.

4582

COMMAND NOT

TO SYNCHRONIZE

Command not to synchronize with utility has been done for: utility bypass out of tolerance (alarm 4410) or setting respective parameters.

4583

COMMAND TO SYNCHRONIZE

Command to synchronize with utility has been done for: utility BP OK (4410) or setting respective parameters.

4600

COMMAND UPS ON

The ECO Mode function has been disabled or the programmed time is expired. The UPS returns to VFI mode supplying the load normally by inverter.

4601

COMMAND UPS STANDBY

The function ECO Mode is enabled, and according to the time program the UPS will run in ECO Mode, supplying the load normally by utility.

4602

Q1 OPEN

The auxiliary contact indicates that the output switch Q1 has been opened.

4603

Q1 CLOSED

The auxiliary contact indicates that the output switch Q1 has been closed.

4699

BATTERY TEST IMPOSSIBLE

Not possible to start battery test (it is postponed) for:

- No utility rectifier or bypass

- Battery not fully charged

- Load is below 10% or above 80%

4763

REMOTE CONTROL ON

Inverter can be started or shutdown by remote control. Commands source can be chosen depending on the value of respective parameter (password required): 0 = Only local panel 1 = Only Remote Control 2 = Both

4764

REMOTE CONTROL OFF

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6.3.4 Event report LP 33U Series

In case of failure or malfunction, before calling the nearest Service Center please note the most important identification data of your UPS and the most recent events displayed.

In order to make the diagnosis easier for our Diagnostic Center we suggest you make a copy of this page, fill it in with the requested data, and send it by fax.

Unit No: __ __ __ __ __ - __ __ __ __ - __ __ __ __ Series No: ……..….. UPS rating: ……….….. kVA

Customer: ...................................…………….....……. Place: ......................…......................…………………………...…........

Date: ...……..... / ..…......... / ....……….……..... Sent by: ..…...........……..............…………………………............….......…

1. Record the exact UPS status on the panel

when the failure appeared.

2. On the LCD panel, enter the Alarms Mode and

record the alarms/messages in the list below indicating at least 5 events before the failure time.

Remark: exact data and time are very important

Event

No.

Event

Code

UPS

Status

Date

Time

h. m. s

255

LED 1

 ON  OFF

254

LED 2

 ON  OFF

253

LED 3

 ON  OFF

252

LED 4

 ON  OFF

251

LED 5

 ON  OFF

250

LED 6

 ON  OFF

249

LED 7

 ON  OFF

248

LED 8

 ON  OFF

247

LED 9

 ON  OFF

246

LED 10

 ON  OFF

245

LED 11

 ON  OFF

244

LED 12

 ON  OFF

243

LOAD

. . . . . . . . . . . . . . . . . . . . .

242

BATTERY

. . . . . . . . . . . . . . . . . . . . .

minutes

241 240

Description of repair actions taken:

239 238 237 236

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

235

Actual situation:

234 233 232 231

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

230

Remarks:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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6.4 SETUP

The SETUP mode is entered any time the “SETUP” key is pressed.

This screen allows the user to modify some parameters permitting to adapt some functions of the UPS to his/her needs, described as follows.

The LCD will display a series of screens containing the user parameters, accessible without password protection.

In this mode the keys perform the following functions:

Return to HOME screen.

Scrolls backward to the previous screen.

Scrolls forward to the next screen.



Confirm selected choice of USER / SERVICE level.

Description of the keys to set or modify the parameters:

ESC

Allows to exit a selected screen without making any modification.

Scrolls backward to the previous line.

Scrolls forward to the next line.

Allows to access a value to be set or modified.



Select, on the same line, the following value or letter to set or modify.

Set or modify the selected value.

Save the set or modified value and return to the selected screen.

It is possible to view any key functional description by pushing the key for more than 3 seconds.

`Home\Setup

UPS IDENTIFICATION

ID : UPS 0 Model : LP Series S1 60kVA S/N : Q1060-2308-0001 UPS SW Version : xxx Display SW Version : xxx

UPS identification screen

ID Number of UPS in the RPA Parallel System (0

for single unit).

Model UPS model, series number and power range

S/N The UPS serial number.

UPS SW The UPS software version.

Display SW The LCD display software version.

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`Home\Setup

SETUP

LEVEL 1

USER

LEVEL 2

SERVICE



Setup screen

LEVEL 1 USER

Displays a sequence of screens with parameters which can be user defined.

LEVEL 2 SERVICE

Service only allowed. At this level the parameters access is protected by a code.

`Home\Setup\User

DATE AND TIME

D M Y

Date

01.06.2008 H M S

Time

15:37:25

Date and time screen

Date You can adjust the date of the real time clock

existing in the UPS by the means of this parameter. The value you enter is thoroughly checked to be a correct date in the format “DD.MM.YY”.

Hour You can adjust the time of the real time clock

existing in the UPS by means of this parameter. The value you enter is thoroughly checked to be a correct time in the format “HH.MM.SS”. The time is specified in 24-hour format.

`Home\Setup\User

MODEM

Enabled

Init

BEQV1X3&D0S0=2

Alarm call

Delay

30 sec

Tel 1

Tel 1 enabled

Modem screen 1

Enabled

You can enable/disable with Y/N the remote control through modem calls by using this parameter. For modem connection, the default setting is for serial port J27 or J3 on Customer Interface (option).

Init

This parameter presents the modem initialization string. It can be 40 characters long.

When editing this parameter the UPS considers that a blank character terminates the string. If no blank character is found then all 40 characters are used.

Alarm call This Y/N parameter controls the automatic events signaling through modem. If this parameter is set to Y (Yes) the UPS itself will call the remote location when a new event occurs

Delay This parameter controls the delay between the occurrence of a new event and the modem dialing. It is useful because since the events typically do not occur isolated but in certain sequences, you can eliminate the need for multiple dial-outs for such a sequence of events.

Tel 1 This parameter specifies a first telephone number to be used for modem dial-out. The telephone number has a maximum 40 characters and cannot contain blanks. If the desired number is shorter than 40 characters, the string will finish with blanks.

Tel 1 enabled This parameter Y/N specifies if the first telephone number (Tel 1) will be used for dial-out.

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`Home\Setup\User

MODEM

Tel 2

Tel 2 enabled

Tel 3

Tel 3 enabled

Tel 4

Tel 4 enabled

Modem screen 2

Tel 2 It records the second dial-out number.

Tel 2 enabled This parameter Y/N specifies if the

second telephone number will be used for dial-out.

Tel 3 It records the third dial-out number.

Tel 3 enabled This parameter Y/N specifies if the third

telephone number will be used for dial-out.

Tel 4 It records the fourth dial-out number.

Tel 4 enabled This parameter Y/N specifies if the fourth telephone number will be used for dial-out.

`Home\Setup\User

DISPLAY

UPS name

LP Series

Language

ENGLISH

LCD Display screen

UPS Name The user can choose the name of the UPS

model shown on the main page (max. 9 characters).

Language This parameter allows the choice of

language used to display the information.

Valid choices are: English, German, Italian, Spanish, French,

Finnish, Polish, Portuguese, Czech, Slovakian, Chinese, Swedish, Russian and Dutch.

` Home\Setup\User

ECO MODE

Enabled

DAY OF WEEK

d1 d2

d3 d4 d5 d6 d7

HOURS / DAY

24 24 12 12 12 12 12

ECO MODE screen

This screen is enabled only for a single UPS, not for an RPA Parallel System.

Enabled This parameter (values Y/N) enables or disables the operation in ECO Mode. If the value is Y and the current time is in the interval for the current day, the ECO Mode is active. The activation / deactivation of ECO Mode is indicated each time in the event list.

In order to check the inverter function, at least 1 minute of VFI mode must be programmed during the week (the Y/N parameter is automatically disabled if this condition is not satisfied). In case this minimum time in VFI mode is not respected, the ECO Mode will be disabled. If the value is N, the UPS is normally operating in VFI / double conversion mode at all times.

DAY OF WEEK (d1 to d7): Enabling time in function of weekdays For the weekdays from d1 to d7 (Saturday to Friday) the edit mode (edit day) allows to define time intervals when the UPS is operating in ECO Mode. The hour is given in 24-hour format.

These intervals are defined by: ECO Mode START: The hour of the day after which the ECO Mode is enabled.

The ECO Mode is enabled until the following ECO Mode STOP time is reached (the ECO Mode

STOP time of the same day if this is later than the ECO Mode START time, the ECO Mode STOP time of the following day otherwise).

ECO Mode STOP: The hour of the day before which the ECO Mode is enabled.

The ECO Mode is enabled starting from the preceding ECO Mode START time (the ECO Mode START time of the same day if this is earlier than the ECO Mode STOP time, the ECO Mode START time of the previous day otherwise).

Identical times for ECO Mode START and ECO Mode STOP maintain the existing mode only in case the previous command was ECO Mode START and the following command will be ECO Mode STOP.

HOURS / DAY: The number of ECO Mode hours per weekday (from d1 - Saturday to d7 - Friday) is displayed in the operation mode parameter window (ceiling value).

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To better understand the ECO Mode programming modes, some typical examples are shown:

Example 1

For continuous ECO Mode set the ECO Mode START times to 00:00 and the ECO Mode STOP times to 23:59 for all weekdays, but almost 1 day must have 1 minute of VFI programming: i.e. d2 - Sunday 00:00 to 23:58).

Weekday d1 - Saturday d2 - Sunday d3 - Monday d4 - Tuesday d5 - Wednesday d6 - Thursday d7 - Friday

ECO Mode START

00:00 00:00 00:00 00:00 00:00 00:00 00:00

ECO Mode STOP

23:59 23:58 23:59 23:59 23:59 23:59 23:59

Example 2:

ECO Mode STOP before ECO Mode START. ECO Mode START 18:00, ECO Mode STOP 06:00 for weekday d4 - Tuesday. Means that on d4 - Tuesday the ECO Mode is active between 00:00 and 06:00 and between 18:00 and 23:59.

Weekday d1 - Saturday d2 - Sunday d3 - Monday d4 - Tuesday d5 - Wednesday d6 - Thursday d7 - Friday

ECO Mode START

00:00 00:00 00:00 18:00 00:00 00:00 00:00

ECO Mode STOP

23:59 23:59 23:59 06:00 23:59 23:59 23:59

Example 3:

ECO Mode during the night and week-end. If the ECO Mode must be enabled all nights (d3 - Monday to d7 - Friday) between 18:00 in the evening and 06:00 of the following morning and during all Saturday (d1) and Sunday (d2), the corresponding parameters are:

Weekday d1 - Saturday d2 - Sunday d3 - Monday d4 - Tuesday d5 - Wednesday d6 - Thursday d7 - Friday

ECO Mode START

00:00 00:00 18:00 18:00 18:00 18:00 18:00

ECO Mode STOP

23:59 23:59 06:00 06:00 06:00 06:00 06:00

Example 4:

If the ECO Mode must be enabled on Monday (d3) and Tuesday (d4) between 18:00 in the evening and 06:00 of the following morning, on Friday (d7) between 12:00 and 13:00, during all Saturday (d1) and on

Sunday (d2) until 20:00, the corresponding parameters are.

Weekday d1 - Saturday d2 - Sunday d3 - Monday d4 - Tuesday d5 - Wednesday d6 - Thursday d7 - Friday

ECO Mode START

00:00 00:00 18:00 18:00 00:00 00:00 12:00

ECO Mode STOP

23:59 20:00 23:59 06:00 06:00 00:00 13:00

ECO Mode START

ECO Mode STOP

In dark color are displayed the times with ECO Mode operation. The arrows indicate the conditions given by the ECO Mode START and ECO Mode STOP times introduced with the parameters. Note that on day d6 - Thursday the interval has length 0 (zero), therefore the ECO Mode is not enabled on this day.

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Example 5:

An equivalent set of parameters for Example 4 is.

Weekday

d1 - Saturday d2 - Sunday d3 - Monday d4 - Tuesday d5 - Wednesday d6 - Thursday d7 - Friday

ECO Mode START

00:00 00:00 18:00 18:00 06:00 09:00 12:00

ECO Mode STOP

23:59 20:00 18:00 06:00 06:00 09:00 13:00

ECO Mode START

ECO Mode STOP

The ECO Mode is active from 18:00 of weekday d3 - Monday until 06:00 of weekday d4 - Tuesday (as indicated by the ECO Mode STOP time of weekday d4 - Tuesday).

The ECO Mode STOP time of weekday d3 - Monday has no effect as it is followed by the ECO Mode STOP time of weekday d4 - Tuesday.

It can be, without change of meaning, any time between 18:00 and 23:59.

Similarly, the ECO Mode is active from 18:00 of weekday d4 - Tuesday until 06:00 of weekday d5 - Wednesday.

The ECO Mode START time of weekday d5 - Wednesday has no effect as it is preceded by the ECO Mode START time of weekday d4 - Tuesday.

It can be, without change of meaning, any time between 00:00 and 06:00.

NOTE !

To avoid undesired ECO Mode operation, verify:

• Date and Time (first page of parameter).

• ECO mode screen how many hours of ECO Mode operation have been selected for

each day of the week.

NOTE !

The ECO Mode will become active only if the load is supplied from the inverter.

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6.5 COMMANDS

The COMMANDS mode is entered any time the “CMDS” key is pressed.

This allows the user to execute UPS operation commands.

In this mode the keys perform the following functions:

Return to HOME screen.

Scrolls forward to the next screen.

Scrolls forward to the next line.



Confirm the selection made.

It is possible to view any key functional description by pushing the key for more than 3 seconds.

`Home\ Commands

COMMANDS

LAMP TEST

INVERTER ON INVERTER OFF BOOSTER ON (Service)

V 

Commands screen 1

LAMP TEST

Signaling LEDs test and buzzer test (all LED should be lit and blinking and the acoustical alarm should be activated).

INVERTER ON Command to switch the inverter.

INVERTER OFF Command to shutdown the inverter.

BOOSTER ON (Service)

Service only allowed.

`Home\ Commands

COMMANDS

RESET TOTAL OFF

REQUEST TOTAL OFF

V 

Commands screen 2

RESET TOTAL OFF

Restore of the command “Total Off”.

REQUEST TOTAL OFF Command “Total Off”.

Screen sequence to execute the command “Total Off”:

`Home\ Commands

COMMANDS COMMANDS

RESET TOTAL OFF

REQUEST TOTAL OFF

CANCEL TOTAL OFF

EXECUTE TOTAL OFF

V 

As the command procedure of “Total Off” is finished the “REQUEST TOTAL OFF” screen appears again.

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7 OPERATION

7.1 PROCEDURES FOR SINGLE LP 33U Series

7.1.1 Start-up of the LP 33U Series

WARNING !

Before connecting hazardous voltages, make sure that:

• The connection to the electrical system has been performed by qualified personnel;

• The equipment frame has been correctly grounded to the main earth;

• Make sure that utility input protection is removed;

• All the panels removed to allow the UPS connection have been correctly reinstalled;

• The UPS switches Q1 and Q2 are OFF (Pos. 0);

• The Battery Breaker Q3 in Battery Cabinet in OFF position.

This procedure must be performed for the first start-up following the installation, with the UPS completely switched Off and not powered.

This procedure presupposes that the load is not yet supplied by the UPS system.

NOTE !

The UPS can be started-up using the battery supply in case the input utility should be unavailable.

To avoid an incidental battery discharge, it is recommended to proceed to the UPS start-up having the input utility available.

Open the front door and make sure that:

• All the connections to the input/output terminals of the UPS have been made correctly.

• The safety screens are fixed in their position.

• The switches Q1 and Q2 are open (Pos. O) and the “The Battery Breaker Q3 in Battery Cabinet in

OFF position”.

LEDs on synoptic diagram

LED 1 Utility rectifier OK LED 2 Utility bypass OK LED 3 Rectifier ON LED 4 Discharging battery LED 5 Booster ON LED 6 Charge battery ON

LED 7 Inverter available LED 8 Inverter ON LED 9 Q1 closed LED 10 Automatic bypass ON LED 11 Manual bypass Q2 ON LED 12 Load on UPS

Q1 UPS output switch

Q2 Manual bypass switch

Key Key Key LED LED LED

Inverter ON Inverter OFF Total Off Stop Operation Alarm Operation

Continue ►

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Switch-ON the utility voltage from the input distribution panel.

Overall test results

Test1 OK Test7 OK Test2 OK Test8 OK Test3 OK Test9 OK Test4 OK Test10 OK Test5 OK Test11 OK Test6 OK

The UPS performs a SELFTEST. A successful termination of the tests will be indicated with Overall test results “OK”. Commissioning cannot be continued should one or more tests result to be negative. Please contact in this case your Service Center.

At this stage the electronic power supply is switched ON and the buzzer sounds.

LED 1 (utility rectifier OK) and LED 2 (utility bypass OK) must be lit. Press “MUTE” key to reset acoustical alarm. LED Alarm remains lit.

During the first commissioning LP 33U Series requests a set up of the UPS configuration parameters presented in the following screens.

Without such configuration it is not possible to continue with the commissioning procedure.

WARNING !

The setup of the UPS configuration parameters must be done only by QUALIFIED AND TRAINED PERSONNEL.

The setup of mistaken values could compromise the integrity and reliability of the UPS.

In this mode the keys perform the following functions:



Confirm the selection made and select the next parameter.

ESC

Re-establish default value.

Modify or insert the selected value.

Save the configuration of set parameters.

`Configuration

DISPLAY CONFIGURATION

Select language : ENGLISH

ESC



DISPLAY CONFIGURATION screen

Select language

This parameter allows the choice of language used to display the information.

` Configuration

UPS CONFIGURATION

Input frequency : 60 Hz Output frequency : 60 Hz Inverter voltage : 120 V

ESC



UPS CONFIGURATION screen

Input frequency

Input frequency value (*60Hz).

Output frequency

Inverter output frequency value (*60Hz).

Inverter voltage Output voltage PHASE/NEUTRAL of the inverter (120 V).

* Configuration of the frequency to 50Hz requires the intervention of a Service Center.

Continue ►

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`Configuration

BATTERY CONFIGURATION

Type : Lead Acid Float voltage : 164 V Recharge current : 013.2 A Autonomy time : 008 min Stop Operation time : 003 min Capacity : 0066 Ah Cells : 72

ESC



BATTERY CONFIGURATION screen

Type Battery type (Lead Acid).

Lead - Acid

Sealed Battery (VRLA).

Float voltage

Voltage to maintain battery charging (insert the value of single battery string). Float voltage = Number of battery cells x battery float voltage per cell. Typical battery float voltage per cell (ask the battery manufacturer for confirmation): Lead - Acid (VRLA):

2.27 Vdc for cell

72 cells x 2.27 Vdc = 164 Vdc

Recharge current

Maximum battery recharge current. 16 A

Autonomy time

The autonomy time of the battery. UPS autonomy on battery mode at full load condition. This value is calculated based on the battery type, capacity and number of cells.

Autonomy times for lead acid batteries (VRLA)

2 x 72 cells Autonomy at full load at PF=0.8 U floating = 164 Vdc (2.27 Vdc - cell)

Battery with expected trickle life 5 years

UPS Model

2 x 33Ah

(48 blocks)

4 x 33Ah

(96 blocks)

2 x 50Ah

(48 blocks)

3 x 50Ah

(72 blocks)

4 x 50Ah

(96 blocks)

LP 33 Series / 50 kVA 9 24 16 29 36 LP 33 Series / 60 kVA 8 18 13 23 33

Autonomy time for battery supplied by GE UPS manufacturer.

Stop Operation time

Residual battery autonomy time before UPS forced shutdown. Standard set 3 minutes. Settable from 1 minute to autonomy time in minutes (see tables).

Capacity

Ah capacity of the battery.

Cells

Number of cells of the battery (insert the value of single battery string).

Lead - Acid (VRLA):

72 cells.

NOTE !

The values indicated above, must be considered as standard values. The actual programmed values must be the ones defined from the battery manufacturer.

`Configuration

CONFIGURATION

Save and exit ?

Yes

CONFIGURATION screen

Screen to save the configuration of set parameters.

Any additional modification of setup parameters can be done only by a GE SERVICE PERSON as it requires an access code.

Continue ►

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2. Make connection between battery breaker in battery cabinet and battery terminals in UPS in case of external battery.

DANGER !

Before performing this operation, check the right DC polarities on both side of the switch/fuse holder!

3. Close the output switch Q1 (Pos. I).

The load is supplied by the utility through the automatic bypass.

The synoptic diagram must display the status “LOAD SUPPLIED BY AUTOMATIC BYPASS”.

`Home\Meter

BOOSTER

f : 60.0 Hz L1 : 120 V L2 : 120 V L3 : 120 V

Vp : 215 V Vn : 215 V

Verify, selecting the screen METERING/BOOSTER/Vp and Vn, that the booster voltage has reached about 215 Vdc.

4. Insert the inverter by pressing “Inverter ON” ( I ) key.

Some seconds later the load will be transferred on inverter. LED Alarm turn Off and the LED Operation must be lit.

The synoptic diagram must display the status “LOAD SUPPLIED BY INVERTER”.

5. Load supply.

Your LP 33U Series UPS is now running in VFI mode, supplying power to the output. Insert the loads one by one to the output of the UPS. Check the output current value of L1, L2 and L3 and check for correct load balance.

6. Operation mode selection.

LP 33U Series is delivered normally selected for permanent VFI operation.

ECO mode can be enabled and the ECO Mode START time & ECO Mode STOP

time can be programmed fo

each day of the week (see Section 6.4 SETUP / ECO MODE).

END OF PROCEDURE

NOTE !

Even if the UPS is delivered with the battery fully charged, they could be partially discharged during transportation or storage.

It is recommended to recharge the battery during at least 10 hours in order to provide the complete battery energy stored to the load in the event of utility failure.

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7.1.2 UPS shutdown with load transfer on manual bypass (Q2)

The purpose of this procedure is to supply the load directly by utility through manual bypass Q2.

This procedure is normally performed when the UPS must be completely switched OFF for maintenance or service purpose, performed by an authorized Service Center.

NOTE !

This procedure must not be performed if the UPS is used as frequency converter.

Disconnect the inverter by pressing “Inverter OFF” ( O ) key and hold until the LED inverter (7) turns OFF.

Load is transferred to utility by automatic bypass.

LED Alarm is lit and the LED Operation is Off.

The synoptic diagram must display the status “LOAD SUPPLIED BY AUTOMATIC BYPASS”.

2. Close the manual bypass switch Q2 (Pos. I).

Load is now supplied parallel through automatic bypass and manual bypass Q2.

The synoptic diagram must display the status “LOAD SUPPLIED BY

AUTOMATIC BYPASS AND MANUAL BYPASS Q2”.

3. Open the output switch Q1 (Pos. 0).

The load is now supplied only through the manual bypass Q2.

The synoptic diagram must display the status “LOAD SUPPLIED BY

MANUAL BYPASS Q2”.

4. Press “Total Off” key.

5. Switch “OFF” battery breaker from battery cabinet

The acoustical alarm is activated, press “MUTE” key to reset it.

Continue ►

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6. In order to discharge the DC link capacitors, insert the inverter by pressing “Inverter ON” ( I ) key.

`Home\Meter

INVERTER

f : 60.0 Hz

L1 : 7 V L2 : 7 V L3 : 7 V

T : OK

SYNCHRONIZED

Remark: Command INVERTER ON will be enabled only when the inverter

voltage of each phase decreases below 7 Vac (about 30 seconds).

`Home\Meter

BOOSTER

f : 60.0 Hz L1 : 120 V L2 : 120 V L3 : 120 V

Vp : 5 V Vn : 5 V

Before proceeding to step 7, check on the display panel that the DC link voltage (both polarities) Vp and Vn has reached the max.

voltage of 5 Vdc (about 30 seconds).

The acoustical alarm is activated, press “MUTE” key (from Home screen) to reset it.

Disconnect the inverter by pressing “Inverter OFF” ( O ) key and hold until the LED inverter (7) turns OFF.

The load is now powered directly by utility through the MANUAL BYPASS Q2.

END OF PROCEDURE

WARNING !

If the above procedure is not completely performed, it could cause serious damages to the UPS.

In case the procedure described on step “6 - Discharge DC link capacitors” cannot be completely performed, the DC capacitors could be charged with dangerous voltage for a minimum of 5 minutes.

Wait until capacitors are completely discharged before starting the UPS again. The UPS cabinet contains parts electrically live. Apart from the front door, do not open any other part of the UPS.

NOTE !

With separate utility inputs, it’s possible to disconnect utility rectifier.

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7.1.3 From Manual Bypass Q2 to normal function VFI

This procedure presupposes that the load is powered by the manual bypass switch, and:

• The inverter is switched OFF;

• The manual bypass switch Q2 is closed (Pos. I);

• The output switch Q1 is open (Pos. 0);

• Switch “OFF” battery breaker from Battery Cabinet.

• LED Alarm blinks.

NOTE !

This procedure must not be performed if the UPS is used as frequency converter.

1. Switch “ON” battery breaker from battery cabinet.

2. Close the output switch Q1 (Pos. I).

Load is now supplied parallel through automatic bypass and manual bypass Q2.

The synoptic diagram must display the status “LOAD SUPPLIED BY AUTOMATIC BYPASS AND MANUAL BYPASS Q2”.

`Home\Commands

COMMANDS

RESET TOTAL OFF

REQUEST TOTAL OFF

3. Only in case it has been previously activated, restore the command “Total Off” by entering the screen:

COMMANDS/RESET TOTAL OFF



`Home\Meter

BOOSTER

f : 60.0 Hz L1 : 120 V L2 : 120 V L3 : 120 V

Vp : 215 V Vn : 215 V

4. Open the manual bypass switch Q2 (Pos. 0).

The load is supplied by the utility through the automatic bypass.

Verify, selecting the screen METERING/BOOSTER/Vp and Vn, that the booster voltage has reached about 215 Vdc.

5. Insert the inverter by pressing “Inverter ON” ( I ) key.

Some seconds later the load will be transferred on inverter. LED Alarm turn Off and the LED Operation must be lit.

The synoptic diagram must display the status “LOAD SUPPLIED BY INVERTER”.

END OF PROCEDURE

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7.1.4 Complete UPS shutdown

As a result of this procedure the UPS is completely switched OFF and not powered.

NOTE !

Follow this procedure only in case the UPS system and the load must be completely powered-down.

1. Press “Total Off” key.

2. Open the output switch Q1 (Pos. 0).

3. Switch “OFF” battery breaker from battery cabinet..

The acoustical alarm is activated, press “MUTE” key to reset it.

4. In order to discharge the DC link capacitors, insert the inverter by pressing “Inverter ON” ( I ) key.

`Home\Meter

INVERTER

f : 60.0 Hz

L1 : 7 V L2 : 7 V L3 : 7 V

T : OK

SYNCHRONIZED

Remark: Command INVERTER ON will be enabled only when the inverter

voltage of each phase decreases below 7 Vac (about 30 seconds).

The acoustical alarm is activated, press “MUTE” key (from Home screen) to reset it.

`Home\Meter

BOOSTER

f : 60.0 Hz L1 : 120 V L2 : 120 V L3 : 120 V

Vp : 5 V Vn : 5 V

Before proceeding to step 5, check on the display panel that the DC link voltage (both polarities) Vp and Vn has reached the max.

voltage of 5 Vdc (about 30 seconds).

Disconnect the inverter by pressing “Inverter OFF” ( O ) key and hold until the LED inverter (7) turns OFF.

6. Switch OFF the utility power at the AC input distribution panel.

END OF PROCEDURE

WARNING !

If the above procedure is not completely performed, it could cause serious damages to the UPS.

In case the procedure described on step “4 - Discharge DC link capacitors” cannot be completely performed, the DC capacitors could be charged with dangerous voltage for a minimum of 5 minutes.

Wait until capacitors are completely discharged before starting the UPS again. Apart from the front door, do not open any other part of the UPS.

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7.1.5 Restore to normal operation after “Total Off”

NOTE !

Make sure the UPS is in the status of the activation of “Total Off”, i. e. Q1 closed, Q2 open and the “battery breaker” Q3 in ON battery cabinet.

View of the synoptic diagram after pressing the “Total Off” key:

• All Contactors are open.

• Booster, Inverter and Static-Switch shutdown.

`Home\Commands

COMMANDS

RESET TOTAL OFF

REQUEST TOTAL OFF

1. Reset “Total Off”.

Restore the command “Total Off” by entering the screen:

COMMANDS / RESET TOTAL OFF

LED Alarm is lit.



The load is supplied by the utility through the automatic bypass.

The booster starts automatically.

The synoptic diagram must display the status “LOAD

SUPPLIED BY AUTOMATIC BYPASS”.

2. Insert the inverter by pressing “Inverter ON” ( I ) key.

Some seconds later the load will be transferred on inverter.

LED Alarm turn Off and the LED Operation must be lit.

The synoptic diagram must display the status “LOAD SUPPLIED BY INVERTER”.

END OF PROCEDURE

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7.1.6 Restore to normal operation after “EPO – Emergency Power Off”

NOTE !

Make sure the UPS is in the status of the activation of “Total Off”, i. e. Q1 closed, Q2 open and the “battery breaker” Q3 in ON battery cabinet.

View of the synoptic diagram after pressing the push-button “EPO - Emergency Power Off”:

• All Contactors are open.

• Booster, Inverter and Static-Switch shutdown.

1. Reset the “EPO” key.

Press MUTE key to reset Alarm and Acoustical alarm. LED Alarm remains lit.

2. Reset the UPS by pressing “Inverter OFF” ( O ) key.

The load is supplied by the utility through the automatic bypass.

The booster starts automatically.

The synoptic diagram must display the status “LOAD

SUPPLIED BY AUTOMATIC BYPASS”.

3. Insert the inverter by pressing “Inverter ON” ( I ) key.

Some seconds later the load will be transferred on inverter.

LED Alarm turn Off and the LED Operation must be lit.

The synoptic diagram must display the status “LOAD SUPPLIED BY INVERTER”.

END OF PROCEDURE

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7.2 PROCEDURES FOR LP 33U Series PARALLEL SYSTEM

7.2.1 LP 33U Series Parallel System start-up

WARNING !

Before connecting hazardous voltages, make sure that:

• The connection to the electrical system has been performed by qualified personnel;

• The equipment frame has been correctly grounded to the main earth;

• Make sure that utility input protection is removed;

• All the panels removed to allow the UPS connection have been correctly reinstalled;

• The UPS switches Q1 and Q2 are OFF (Pos. 0);

• The “battery breaker” Q3 is OFF.

This procedure must be performed for the first start-up following the installation, with all the UPS units completely switched Off and not powered.

This procedure presupposes that the load is not yet supplied by the UPS Parallel System.

NOTE !

The UPS Parallel System can be started-up using the battery supply in case the input utility should be unavailable.

To avoid an incidental battery discharge, it is recommended to proceed to the UPS Parallel System start-up having the input utility available.

Open the front door on all UPS units and make sure that:

• All the connections to the input/output terminals of the UPS have been made correctly.

• The safety screens are fixed in their position.

• The switches Q1 and Q2 are open (Pos. O) and the “battery breaker” Q3 is OFF..

LEDs on synoptic diagram

LED 1 Utility rectifier OK LED 2 Utility bypass OK LED 3 Rectifier ON LED 4 Discharging battery LED 5 Booster ON LED 6 Charge battery ON

LED 7 Inverter available LED 8 Inverter ON LED 9 Q1 closed LED 10 Automatic bypass ON LED 11 Manual bypass Q2 ON LED 12 Load on UPS

Q1 UPS output switch

Q2 Manual bypass switch

Key Key Key LED LED LED

Inverter ON Inverter OFF Total Off Stop Operation Alarm Operation

Continue ►

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Switch-ON the utility voltage, on all UPS units, from the input distribution (both rectifier and bypass if separated).

Overall test results

Test1 OK Test7 OK Test2 OK Test8 OK Test3 OK Test9 OK Test4 OK Test10 OK Test5 OK Test11 OK Test6 OK

At this stage the electronic power supply is switched ON and the buzzer sounds.

LED 1 (utility rectifier OK) and LED 2 (utility bypass OK) must be lit. Press “MUTE” key to reset acoustical alarm. LED Alarm remains lit.

During the first commissioning LP 33U Series requests a set up of the UPS configuration parameters presented in the following screens.

Without such configuration it is not possible to continue with the commissioning procedure.

WARNING !

The setup of the UPS configuration parameters must be done only by QUALIFIED AND TRAINED PERSONNEL. The setup of mistaken values could compromise the integrity and reliability of the UPS.

In this mode the keys perform the following functions:



Confirm the selection made and select the next parameter.

ESC

Re-establish default value.

Modify or insert the selected value.

Save the configuration of set parameters.

`Configuration

DISPLAY CONFIGURATION

Select language : ENGLISH

ESC



DISPLAY CONFIGURATION screen

Select language

This parameter allows the choice of language used to display the information.

` Configuration

UPS CONFIGURATION

Input frequency : 60 Hz Output frequency : 60 Hz Inverter voltage : 120 V

ESC



UPS CONFIGURATION screen

Input frequency

Input frequency value (*60Hz).

Output frequency

Inverter output frequency value (*60Hz).

Inverter voltage Output voltage PHASE/NEUTRAL of the inverter (120 V).

* Configuration of the frequency to 50Hz requires the intervention of a Service Center.

Continue ►

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`Configuration

BATTERY CONFIGURATION

Type : Lead Acid Float voltage : 164 V Recharge current : 013.2 A Autonomy time : 008 min Stop Operation time : 003 min Capacity : 0066 Ah Cells : 72

ESC



BATTERY CONFIGURATION screen

Type Battery type (Lead Acid).

Lead - Acid

Sealed Battery (VRLA).

Float voltage

2.27 Vdc for cell

72 cells x 2.27 Vdc = 164 Vdc

Recharge current

Maximum battery recharge current. 16 A

Autonomy time

The autonomy time of the battery. UPS autonomy on battery mode at full load condition. This value is calculated based on the battery type, capacity and number of cells.

Autonomy times for lead acid batteries (VRLA)

2 x 72 cells Autonomy at full load at PF=0.8 U floating = 164 Vdc (2.27 Vdc - cell)

Battery with expected trickle life 5 years

UPS Model

2 x 33Ah

(48 blocks)

4 x 33Ah

(96 blocks)

2 x 50Ah

(48 blocks)

3 x 50Ah

(72 blocks)

4 x 50Ah

(96 blocks)

LP 33 Series / 50 kVA 9 24 16 29 36 LP 33 Series / 60 kVA 8 18 13 23 33

Autonomy time for battery supplied by GE UPS manufacturer.

Stop Operation time

Residual battery autonomy time before UPS forced shutdown. Standard set 3 minutes. Settable from 1 minute to autonomy time in minutes (see tables).

Capacity

Ah capacity of the battery.

Cells

Number of cells of the battery (insert the value of single battery string).

Lead - Acid (VRLA):

72 cells.

NOTE !

The values indicated above, must be considered as standard values. The actual programmed values must be the ones defined from the battery manufacturer.

`Configuration

CONFIGURATION

Save and exit ?

Yes

CONFIGURATION screen

Screen to save the configuration of set parameters.

Any additional modification of setup parameters can be done only by a GE SERVICE PERSON as it requires an access code.

Continue ►

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2. Turn ON battery breaker in all battery cabinets.

DANGER !

Before to perform this operation, check the right DC polarities on both side of the switch/fuse holder!

3. Close the output switch Q1 (Pos. I) on all UPS units.

When the last Q1 will be closed the output will be supplied by the utility through all automatic bypasses.

The synoptic diagram, on all UPS units, must display the status “LOAD SUPPLIED BY AUTOMATIC BYPASS”.

`Home\Meter

BOOSTER

f : 60.0 Hz L1 : 120 V L2 : 120 V L3 : 120 V

Vp : 215 V Vn : 215 V

Verify on all UPS units, selecting the screen METERING/BOOSTER/Vp and Vn, that the booster voltage has reached about 215 Vdc.

Insert the inverter by pressing “Inverter ON” ( I ) key on first UPS unit.

In case of sufficient output power, the output will transfer to

Inverter. LED Alarm turn Off and the LED Operation must be is lit. The synoptic diagram, on first UPS unit, must display the status

“LOAD SUPPLIED BY INVERTER”.

Insert the inverter by pressing “Inverter ON” ( I ) key on all other UPS units.

Do not start the next inverter until the sequence of the previous one end. As soon as the output power of the inverters is sufficient to supply the load, the output of the units with

running inverter will transfer to inverter.

LED Alarm turn Off and the LED Operation must be lit.

The synoptic diagram, on all UPS units, must display the status

“LOAD SUPPLIED BY INVERTER”.

6. Load supply.

LP 33U Series Parallel System is now running, supplying power to the output. Insert the loads one by one to the output of the LP 33U Series Parallel System. Check the output current value of L1, L2 and L3 and check for correct load balance.

END OF PROCEDURE

NOTE !

Even if the UPS is delivered with the battery fully charged, they could be partially discharged during transportation or storage.

It is recommended to recharge the battery during at least 10 hours in order to provide the complete battery energy stored to the load in the event of utility failure.

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7.2.2 Parallel UPS shutdown with load transfer on manual bypass (Q2)

The purpose of this procedure is to supply the load directly by utility through manual bypass Q2.

This procedure is normally performed when the System Parallel must be completely switched OFF for maintenance or service purpose, performed by an authorized Service Center.

The synoptic diagram, on all UPS units, must display the status

“LOAD SUPPLIED BY INVERTER”.

Disconnect the inverter by pressing “Inverter OFF” ( O ) key and hold until the LED Inverter (7) turns OFF on all UPS units.

The output will be supplied by the utility through all automatic bypass.

LEDs Alarm are lit and the LEDs Operation are Off.

The synoptic diagram, on all UPS units, must display the status “LOAD SUPPLIED BY AUTOMATIC BYPASS”.

2. Close the manual bypass switch Q2 (Pos. I) on all UPS units.

Load is now supplied from utility in parallel from automatic bypass and manual bypass Q2 of all UPS units.

The synoptic diagram, on all UPS units, must display the status

“LOAD SUPPLIED BY AUTOMATIC BYPASS AND MANUAL BYPASS Q2”.

3. Open the output switch Q1 (Pos. 0) on all UPS units.

The load is now supplied only through the manual bypass Q2.

The synoptic diagram, on all UPS units, must display the status

“LOAD SUPPLIED BY MANUAL BYPASS Q2”.

4. Press “Total Off” key on all UPS units.

5. Switch OFF battery breaker on each battery cabinet..

The acoustical alarm is activated, press “MUTE” key to reset it.

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6. In order to discharge the DC link capacitors, insert the inverter by pressing “Inverter ON” ( I ) ke

on all UPS units.

`Home\Meter

INVERTER

f : 60.0 Hz

L1 : 7 V L2 : 7 V L3 : 7 V

T : OK

SYNCHRONIZED

Remark: Command INVERTER ON will be enabled only when the inverter

voltage of each phase decreases below 7 Vac (about 30 seconds).

`Home\ Meter

BOOSTER

f : 60.0 Hz L1 : 120 V L2 : 120 V L3 : 120 V

Vp : 5 V Vn : 5 V

Before proceeding to step 7, check on the display panel that the DC link voltage (both polarities) Vp and Vn has reached the max.

voltage of 5 Vdc (about 30 seconds).

The acoustical alarm is activated, press “MUTE” key (from Home screen) to reset it.

Disconnect the inverter, on all UPS units, by pressing “Inverter OFF” ( O ) key and hold until the LED Inverter (7) turns OFF.

The load is now powered directly by utility through all MANUAL BYPASS Q2.

The synoptic diagram, on all UPS units, must display the status “LOAD SUPPLIED BY MANUAL BYPASS Q2”.

END OF PROCEDURE

WARNING !

If the above procedure is not completely performed, it could cause serious damages to the UPS.

In case the procedure described on step “6 - Discharge DC link capacitors” cannot be completely performed, the DC capacitors could be charged with dangerous voltage for a minimum of 5 minutes.

Wait until capacitors are completely discharged before starting the UPS again. The UPS cabinet contains parts electrically live. Apart from the front door, do not open any other part of the UPS.

NOTE !

With separate utility inputs, it’s possible to disconnect utility rectifier.

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7.2.3 From Manual Bypass Q2 to normal function VFI

This procedure presupposes that the load is powered by all manual bypass Q2 switch of the Parallel System, and:

• The inverter is switched OFF;

• The manual bypass switch Q2 is closed (Pos. I);

• The output switch Q1 is open (Pos. 0);

• The Battery Breaker Q3 from all cabinets are OFF.

• LED Alarm blinks.

The synoptic diagram, on all UPS units, must display the status “LOAD SUPPLIED BY MANUAL BYPASS Q2”.

1. Close the output switch Q1 (Pos. I) on all UPS units.

When the last Q1 will be closed the output will be from utility in parallel from automatic bypass and manual bypass Q2 of all UPS units.

The synoptic diagram, on all UPS units, must display the status “LOAD SUPPLIED BY AUTOMATIC BYPASS AND MANUAL BYPASS Q2”.

`Home\Commands

COMMANDS

RESET TOTAL OFF

REQUEST TOTAL OFF

2. Only in case it has been previously activated, restore the command “Total Off”

on any one of the units by entering

the screen: COMMANDS/RESET TOTAL OFF



`Home\Meter

BOOSTER

f : 60.0 Hz L1 : 120 V L2 : 120 V L3 : 120 V

Vp : 215 V Vn : 215 V

3. Open the manual bypass switch Q2 (Pos. 0) on all UPS units.

The load is supplied by the utility through the automatic bypass.

Verify on all UPS units, selecting the screen METERING/BOOSTER/Vp and Vn, that the booster voltage has reached about 215 Vdc.

Insert the inverter by pressing “Inverter ON” ( I ) key on first UPS unit.

In case of sufficient output power, the output will transfer to

Inverter. LED Alarm turn Off and the LED Operation must be is lit. The synoptic diagram, on first UPS unit, must display the status

“LOAD SUPPLIED BY INVERTER”.

4. Switch “ON” battery breaker from battery cabinet.

Insert the inverter by pressing “Inverter ON” ( I ) key on all other UPS units.

Do not start the next inverter until the sequence of the previous one end. As soon as the output power of the inverters is sufficient to supply the load, the output of the units with

running inverter will transfer to inverter.

LED Alarm turn Off and the LED Operation must be lit.

The synoptic diagram, on all UPS units, must display the status

“LOAD SUPPLIED BY INVERTER”.

END OF PROCEDURE

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7.2.4 Separate (shutdown) a UPS unit from the Parallel System (System Redundancy)

One UPS unit of the Parallel System has to be turned Off, while the load is shared between the other units supplying the parallel bus.

1. Disconnect the inverter, only on this unit, by pressing “Inverter OFF” ( O ) key and hold until the LED Inverter (7) turns OFF.

With redundant system, pressing the key OFF the inverter shuts down and it will stay OFF. If by pressing the key “O” the load is transferred to the utility and the inverter remains operating, it means the system is not redundant. In this case is not possible to switch-OFF one unit without transferring the load on utility).

Load supplied from inverter(s) of the other Unit(s) of the Parallel System.

2. Open the output switch Q1 only on this unit.

LED Alarms is lit and the LED Operation is Off.

`Home\Commands

COMMANDS

RESET TOTAL OFF

REQUEST TOTAL OFF

3. Perform the command “Total Off” only on this unit.

Perform the command “Total Off” by entering the screen (see Section 6.5):

COMMANDS / REQUEST TOTAL OFF



4. Switch OFF battery breaker only from battery cabinet belongs to this unit..

5. In order to discharge the DC link capacitors, insert the inverter by pressing “Inverter ON” ( I ) key only on this unit.

`Home\Meter

INVERTER

f : 60.0 Hz

L1 : 7 V L2 : 7 V L3 : 7 V

T : OK

SYNCHRONIZED

Remark: Command INVERTER ON will be enabled only when the inverter

voltage of each phase decreases below 7 Vac (about 30 seconds).

`Home\ Meter

BOOSTER

f : 60.0 Hz L1 : 120 V L2 : 120 V L3 : 120 V

Vp : 5 V Vn : 5 V

Before proceeding to step 6, check on the display panel that the DC link voltage (both polarities) Vp and Vn has reached the max.

voltage of 5 Vdc (about 30 seconds).

The acoustical alarm is activated, press “MUTE” key (from Home screen) to reset it.

Disconnect the inverter, only on this unit, by pressing “Inverter OFF” ( O ) key and hold until the LED Inverter (7) turns OFF.

7. Switch OFF the utility power, only on this unit, at the AC input distribution panel.

END OF PROCEDURE

WARNING !

In case the unit should be disconnected and removed from the operating system, the operation MUST BE PERFORMED BY QUALIFIED PERSONS.

If an intermediate unit must be disconnected from a parallel system pay attention do not open the control bus: keep the plugs J3 and J4 connected to the board “P16 - Connector adapter RPA” (See Chapter 3.9.5 of Installation Guide).

For any further intervention contact nearest Service Center.

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7.2.5 Reconnect a UPS unit to a Parallel System

WARNING !

Before connecting hazardous voltages, make sure that:

• The connection to the electrical system has been performed by qualified personnel;

• The equipment frame has been correctly grounded to the main earth;

• Make sure that utility input protection is removed;

• All the panels removed to allow the UPS connection have been correctly reinstalled;

• The UPS switches Q1 and Q2 are open (Pos. 0);

• The “battery breaker” Q3 is OFF.

This procedure must be performed when the load is supplied by the other units of the UPS Parallel System and an additional unit must be switched ON and connected to the parallel bus in order to share

the load with each other. This unit must be completely switched OFF and not powered.

Switch-ON the utility voltage from the input distribution (both rectifier and bypass if separated) on this UPS unit.

Overall test results

Test1 OK Test7 OK Test2 OK Test8 OK Test3 OK Test9 OK Test4 OK Test10 OK Test5 OK Test11 OK Test6 OK

The UPS performs a SELFTEST.

A successful termination of the tests will be indicated with Overall test results “OK”. Commissioning cannot be continued should one or more tests result to be negative. Please contact in this case your Service Center.

2. Close output switch Q1 (Pos. I) on this UPS unit.

`Home\Meter

BOOSTER

f : 60.0 Hz L1 : 120 V L2 : 120 V L3 : 120 V

Vp : 215 V Vn : 215 V

Verify on this UPS unit, selecting the screen METERING/BOOSTER/Vp and Vn, that the booster voltage has reached about 215 Vdc.

3. Insert the inverter by pressing “Inverter ON” ( I ) key on this UPS unit.

When the inverter will be synchronized, the unit will be automatically connected with the parallel bus bar and the load will be shared with the other units.

LED Alarm turn Off and the LED Operation must be lit.

The synoptic diagram, on all UPS units, must display the status

“LOAD SUPPLIED BY INVERTER”.

END OF PROCEDURE

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7.2.6 Complete Parallel System shutdown

As a result of this procedure the Parallel System is completely switched OFF and not powered.

NOTE !

Follow this procedure only in case the Parallel System and the load must be completely powered-down.

1. Press “Total Off” key on anyone of the parallel units.

2. Open the output switch Q1 (Pos. 0) on all UPS units.

3. Switch OFF battery from battery cabinets of all the units..

The acoustical alarm is activated, press “MUTE” key to reset it.

4. In order to discharge the DC link capacitors, insert the inverter by pressing “Inverter ON”

( I ) ke

on all UPS units.

`Home\Meter

INVERTER

f : 60.0 Hz

L1 : 7 V L2 : 7 V L3 : 7 V

T : OK

SYNCHRONIZED

Remark: Command INVERTER ON will be enabled only when the inverter

voltage of each phase decreases below 7 Vac (about 30 seconds).

`Home\Meter

BOOSTER

f : 60.0 Hz L1 : 120 V L2 : 120 V L3 : 120 V

Vp : 5 V Vn : 5 V

Before proceeding to step 5, check on the display panel that the DC link voltage (both polarities) Vp and Vn has reached the max.

voltage of 5 Vdc (about 30 seconds).

The acoustical alarm is activated, press “MUTE” key (from Home screen) to reset it.

Disconnect the inverter, on all UPS units, by pressing “Inverter OFF” ( O ) key and hold until the LED Inverter (7) turns OFF.

6. Switch OFF the utility power, on all UPS units, at the AC input distribution panel.

END OF PROCEDURE

WARNING !

If the above procedure is not completely performed, it could cause serious damages to the UPS.

In case the procedure described on step “4 - Discharge DC link capacitors” cannot be completely performed, the DC capacitors could be charged with dangerous voltage for a minimum of 5 minutes.

Wait until capacitors are completely discharged before starting the UPS again. Apart from the front door, do not open any other part of the UPS.

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7.2.7 Restore to normal operation after “Total Off”

NOTE !

Make sure the all units of the Parallel System to be status of the activation of “Total Off”, i. e. Q1 closed, Q2 open and the Battery Breakers are in ON state.

View of the synoptic diagram, on all UPS units, after pressing the “Total Off” key.

• All Contactors are open.

• Booster, Inverter and Static-Switch shutdown.

`Home\Commands

COMMANDS

RESET TOTAL OFF

REQUEST TOTAL OFF

1. Reset “Total Off” of the Parallel System.

Restore the command “Total Off”, on anyone of the parallel units, by entering the screen:

COMMANDS / RESET TOTAL OFF

LED Alarm is lit.



The load is supplied by the utility through the automatic bypass. The booster starts automatically.

The synoptic diagram, on all UPS units, must display the status

“LOAD SUPPLIED BY AUTOMATIC BYPASS”.

Insert the inverter by pressing “Inverter ON” ( I ) key on first UPS unit.

In case of sufficient output power, the output will transfer to

Inverter. LED Alarm turn Off and the LED Operation must be is lit. The synoptic diagram, on first UPS unit, must display the status

“LOAD SUPPLIED BY INVERTER”.

Insert the inverter by pressing “Inverter ON” ( I ) key on all other UPS units.

Do not start the next inverter until the sequence of the previous one end. As soon as the output power of the inverters is sufficient to supply the load, the output of the units with

running inverter will transfer to inverter.

LED Alarm turn Off and the LED Operation must be lit.

The synoptic diagram, on all UPS units, must display the status

“LOAD SUPPLIED BY INVERTER”.

END OF PROCEDURE

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7.2.8 Restore to normal operation after “EPO – Emergency Power Off”

NOTE !

Make sure the all units of the Parallel System to be status of the activation of “EPO - Emergency Power Off”, i. e. Q1 closed, Q2 open and the Battery Breakers are in ON state.

View of the synoptic diagram, on all UPS units, after pressing the push-button “EPO - Emergency Power Off”:

• All Contactors are open.

• Booster, Inverter and Static-Switch shutdown.

1. Reset the push-button “EPO”.

Press MUTE key to reset Alarm and Acoustical alarm. LED Alarm remains lit.

2. Reset the UPS by pressing “Inverter OFF” ( O ) key on all UPS units.

The load is supplied by the utility through the automatic bypass. The booster starts automatically.

The synoptic diagram must display the status “LOAD SUPPLIED BY

AUTOMATIC BYPASS”.

Insert the inverter by pressing “Inverter ON” ( I ) key on first UPS unit.

In case of sufficient output power, the output will transfer to

Inverter. LED Alarm turn Off and the LED Operation must be is lit. The Synoptic diagram, on first UPS unit, must display the status

“LOAD SUPPLIED BY INVERTER”.

Insert the inverter by pressing “Inverter ON” ( I ) key on all other UPS units.

Do not start the next inverter until the sequence of the previous one end. As soon as the output power of the inverters is sufficient to supply the load, the output of the units with

running inverter will transfer to inverter.

LED Alarm turn Off and the LED Operation must be lit.

The Synoptic diagram, on all UPS units, must display the status

“LOAD SUPPLIED BY INVERTER”.

END OF PROCEDURE

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8 OPTIONS

8.1 OPTIONS GENERAL VIEW

Utility Input

Digital Energy

Battery System

Digital Energy

UPS System

Digital Energy

Battery System

Digital Energy

UPS System

Digital Energy

Battery System

Digital Energy

UPS System

Digital Energy

Battery System

Digital Energy

UPS System

Load

RPA kit

Redundant Parallel Architecture

Allows extending the unit to a parallel system with 2, 3, or 4 units connected on the same bus, which ensure the highest reliability rate and increase the power availability without prior investments.

L P

3 U

P T

a b

n e

t b

a t t

r y

_ 0

Additional battery cabinets

For battery with extended backup time (max. 16A). Dimensions (WxDxH): 16.93” x 28.55” x 70.95” / 430 x 725 x 1802 mm

SGT4000_customer interface_02

1234567891011

1615141312 2221

191817

Customer Interface

The Customer Interface allows the client the exchange of information (monitoring and control) with the following interfaces:

- Serial port RS232.

- 6 programmable output channels.

- 2 programmable input channels, of witch one for GEN-ON.

- EPO (Emergency Power Off).

Advanced SNMP Card

Simple Network Management Protocol

The Advanced SNMP Card is an Interface to the Ethernet Network, and provides UPS information via the standard SNMP protocol.

The UPS can therefore be managed by a Network Management System (NMS) or by our applications (for instance JUMP), which uses this information to determine the state of the UPS in order to guarantee safe and orderly shutdown of the server, when needed.

GE Power Diagnostics

GE Power Diagnostics is an anytime, anywhere concept in UPS status monitoring and alarm notiﬁcation that has been successfully implemented in numerous of installations supporting up to multi-hundred UPS. Based on the leading Intelligent Remote Information System IRIS all GE UPS types as well as 3rd party UPS are supported.

Accessing the latest site information via Web and being alerted by Email, SMS or Fax, it

enables the user to make timely decisions in case of changing critical conditions. With comprehensive data collection and analysis IRIS is not only a remote monitoring & diagnostics (RM&D) system but, the core of the integrated service offering GE Power Diagnostics.

GE Data Protection

GE Data Protection software can communicate with the UPS over RS-232, USB or SNMP to receive status information and measurement values of the UPS.

In case of a critical condition (time on battery, remaining battery autonomy time or low

battery) for the load, the software starts a controlled shutdown. An enhanced alarm management system provides the possibility to start applications, send messages, and send e-mails for every upcoming or disappearing alarm.

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9 MAINTENANCE

WARNING !

All maintenance and service works must be performed by QUALIFIED SERVICE PERSON.

9.1 GENERAL MAINTENANCE

A UPS system, like other electrical equipment, needs periodic preventive maintenance. A regular maintenance check of your installation guarantees higher reliability of your safe power supply. Preventive maintenance work on the UPS can be done only by trained Service technicians. We therefore recommend you sign a Maintenance and Service contract with the local Service Center organization.

9.2 COOLING FAN MAINTENANCE

The expected operational life of the cooling fans is approximately 40’000 hours of continuous operation. A high ambient temperature will shorten this operational life.

9.3 BATTERY MAINTENANCE

The service life of the battery is from 3 to 6 years, depending on the operating temperature and on the number of discharge cycles.

The UPS LP 33U Series offers the possibility of SBM (Superior Battery Management). The function SBM can be activated through a service Parameter. The functionality of SBM reduces the Battery recharging time together with improved lifetime of the Battery.

As a healthy battery is essential to the performance of the UPS, an automatic or manual battery test can be performed regularly to ensure failsafe operation, in order to check if the battery can provide the expected backup time in case of utility failure. We recommend the battery test be performed at least every 1 month, especially if the battery is not sufficiently discharged during normal operation. Since the parameter enabling the battery test protected by user password, please contact your Service Center for more information.

Please consider that, if you did a full battery test to verify the full runtime of the battery, the charger needs at least 8 hours to recharge the battery up to 90% of its capacity.

To guarantee that the battery is fully charged, the UPS system should be in operation for at least 12 hours every 3 months.

When the condition of the battery is critical, the warning signal will be activated (general alarm, buzzer and alarm message “4118 - Battery fault”). In this case the battery must be replaced as soon as possible. Please contact your Service Center.

9.4 SERVICE REQUIRED

If this lamp lights up during normal operation, the unit has not been serviced for the last 20,000 hours by a GE trained technician.

We highly recommend that you contact your Service Center for preventive maintenance work.

NOTE !

Ask to your local Service Center to submit the form of Preventive Maintenance Contract suitable for your specific needs.

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10 NOTES

10.1 NOTES FORM

It is recommended to note in this section Notes, with date and short description all the operations performed on the UPS, as: maintenance, components replacement, abnormal situations, etc. .

Date Description Done by

GE LP 33U Series, Digital Energy LP 33U Series Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual