GE LP 33 User Manual

GE Consumer & Industrial

Power Protection

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Manufactured by:

GE Zenith Controls
General Electric Company
2501 Pecan Street
Bonham, Texas 75418
T 903 640 7900
T 903 640 7900

www.geindustrial.com/cwc/home

Operating Manual

Uninterruptible Power supply

Digital Energy™

LP 33 Series

30 & 40 kVA

208 VAC UL / Series 0

Model: LP 33 Series / 30 & 40 kVA / Series 0

Date of issue: 01/01/2005

File name: OPM_LPS_3UO_30K_40K_0US_V010

Revision: 1.0

Identification No.

Up-dating

Revision Concerns Date

COPYRIGHT © 2005 by GE Consumer & Industrial

All rights reserved.

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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t

t

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 33 Series
Uninterruptible Power Supply system,
developed and produced to the highes
standards of quality, will give you complete
satisfaction.

Please carefully read the Installation Guide.
It contains all the necessary information abou
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 G.E. Global Services at least two weeks prior to schedule start-up
and commissioning at 1-800-637-1738, or by E-mail at [e-mail]

Manufactured by:

g

GE Digital Energy

General Electric Company

CH – 6595 Riazzino (Locarno)

Switzerland

Distributed by:

Your service contact:

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OPM_LPS_3UO_30K_40K_0US_V010.doc Operating Manual LP 33 Series 30 & 40 kVA

Preface

Congratulations on your choice of a LP 33 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 33 Series / 30 & 40 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

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

1

2 INTRODUCTION..........................................................................................................................................9

2.1 GENERAL DESCRIPTION......................................................................................................................................................................9

3 DESCRIPTION............................................................................................................................................10

3.1 BLOCK DIAGRAM AND MAIN ELEMENTS DESCRIPTION.................................................................................................... 10

3.2 OPERATION MODES........................................................................................................................................................................... 11

3.3 RPA PARALLEL SYSTEM.................................................................................................................................................................... 14

3.4 UPS PARALLELED ON THE SAME BATTERY.............................................................................................................................. 15

3.5 SERVICE AND TECHNICAL SUPPORT.......................................................................................................................................... 16

3.6 RECYCLING AT THE END OF SERVICE LIFE .............................................................................................................................. 17

4 LAYOUT......................................................................................................................................................18

4.1 LAYOUT LP 33 SERIES / 30 & 40 KVA......................................................................................................................................... 18

5 SYSTEM HANDLING..................................................................................................................................19

5.1 CONTROL PANEL ................................................................................................................................................................................ 19

5.2 COMMAND PUSH BUTTONS AND SWITCHES ........................................................................................................................ 20

6 LCD SCREEN..............................................................................................................................................21

6.1 METERING SCREENS (METERING)................................................................................................................................................ 21

6.2 EVENT SCREENS (ALARM)................................................................................................................................................................ 23

6.2.1 Alarms list.................................................................................................................................................................................................... 23

6.2.2 Messages list.............................................................................................................................................................................................. 26

6.2.3 Event report LP 33 Series...................................................................................................................................................................... 29

6.3 MENU SCREENS (MENU).................................................................................................................................................................. 30

6.3.1 User parameters screen....................................................................................................................................................................... 31

7 OPERATION ...............................................................................................................................................35

7.1 PROCEDURES FOR SINGLE LP 33 SERIES................................................................................................................................. 35

7.1.1 Start-up of the LP 33 Series................................................................................................................................................................. 35

7.1.2 UPS shutdown with load transfer on manual bypass (Q2)................................................................................................... 37

7.1.3 Start-up following the operation on manual bypass (Q2)..................................................................................................... 39

7.1.4 Complete shutdown ............................................................................................................................................................................... 40

7.1.5 Restore to normal operation after “total off”.............................................................................................................................. 41

7.1.6 Restore to normal operation after “EPO – Emergency Power Off”.................................................................................... 42

7.2 PROCEDURES FOR PARALLEL SYSTEM LP 33 SERIES .........................................................................................................43

7.2.1 Parallel System start-up of the LP 33 Series................................................................................................................................43

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

7.2.3 Start-up following the operation on maintenance bypass (Q2)......................................................................................... 47

7.2.4 Shutdown of a single unit in a parallel system .......................................................................................................................... 48

7.2.5 Start-up an additional unit in a parallel system ........................................................................................................................ 49

7.2.6 Complete shutdown of a parallel system..................................................................................................................................... 50

7.2.7 Restore to normal operation after “total off”.............................................................................................................................. 51

7.2.8 Restore to normal operation after “EPO – Emergency Power Off”.................................................................................... 52

8 OPTIONS....................................................................................................................................................53

8.1 OPTIONS GENERAL VIEW................................................................................................................................................................ 53

9 MAINTENANCE .........................................................................................................................................54

9.1 GENERAL MAINTENANCE................................................................................................................................................................ 54

9.2 COOLING FAN MAINTENANCE...................................................................................................................................................... 54

9.3 BATTERY MAINTENANCE................................................................................................................................................................. 54

9.4 SERVICE REQUIRED ........................................................................................................................................................................... 55

10 NOTES........................................................................................................................................................56

10.1 NOTES FORM........................................................................................................................................................................................ 56

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1 SAFETY RULES

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

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 33 Series / 30 & 40 kVA is a FCC Class A-UPS Product.

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.

GE
Refuses any responsibility in case of non-observance,

unauthorised alterations or improper use of the
delivered UPS.

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SAVE THESE INSTRUCTIONS

This manual contains important instructions for models LP 33 Series / 10 & 20 kVA that should
be followed during installation and maintenance of the UPS and battery.

- 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.

GENERAL

- 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 number, voltage (V) and capacity (Ah).

- 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.

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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 INTRODUCTION

2.1 GENERAL DESCRIPTION

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

In case the mains 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 mains recovers.

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

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

•

VFI (Voltage Frequency Independent) double conversion technology to provide an excellent
quality power supply.

•

Input power factor 0.8.

• 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, 50 dB(A) (10 kVA), 55 dB(A) (20 kVA) and 61 dB (A) (30 & 40 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, 22 minutes (10 kVA), 9 minutes (20 kVA), 29 minutes (30 kVA) and 19
minutes (40 kVA), with battery housed in the UPS cabinet.

• Wide rectifier input voltage tolerance: 152 ÷ 240 VAC (phase – phase).

• 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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OPM_LPS_3UO_30K_40K_0US_V010.doc Operating Manual LP 33 Series 30 & 40 kVA

3 DESCRIPTION

3.1 BLOCK DIAGRAM AND MAIN ELEMENTS DESCRIPTION

Fig. 3.1-1 UPS block diagram

The Uninterruptible Power Supply System LP 33 Series / 30 & 40 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 33 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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OPM_LPS_3UO_30K_40K_0US_V010.doc Operating Manual LP 33 Series 30 & 40 kVA

3.2 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 mains, supplies the

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

Fig. 3.2-1 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 mains power.

ECO Mode operation (Intelligent Energy Management)

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

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

When the mains recovers, the load returns to
the automatic bypass after a variable time

Fig. 3.2-2 Energy flow in ECO Mode operation

defined by the control unit.

The ECO Mode can be configured directly by the user for higher efficiency, considering the mains
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 6.3.1-5).

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 mains voltage do not exceed the
admitted tolerances, the load is instantly
transferred to the mains through the automatic
bypass, taking advantage of the higher short
circuit power.

Fig. 3.2-3 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.

Mains recovery operation

As soon as the mains 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
mains recovers the system start up automatically.

Fig. 3.2-4 Energy flow at mains 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 mains 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 mains 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. 3.2-5 Energy flow in manual bypass operation

Mains failure operation

In the event of a mains 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. 3.2-6 Energy flow during mains failure operation

In the event of an extended mains 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 mains power available as the warning “battery low” occurs on one unit, after

timeout (selectable) the load is transferred to mains.

• With missing bypass mains 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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3.3 RPA PARALLEL SYSTEM

The RPA (Redundant Parallel Architecture) allows to extend the unit to a parallel system with 2, 3, or 4
units LP 33 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

LPS33U_030-040_RPA system_GE_01

LP 33 Series

1

parallel units can achieve the 100% of the
installed nominal power system.
In the event of one unit fails, the load will be

RPA
Board

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

Fig. 3.3-1 RPA system diagram

required load power.

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 exclude 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.

UTILITY INPU

F2F1 F3 F4

LP 33 Series

2

RPA
Board

LOA

LP 33 Series

3

RPA
Board

LP 33 Series

4

RPA
Board

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OPM_LPS_3UO_30K_40K_0US_V010.doc Operating Manual LP 33 Series 30 & 40 kVA

3.4 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.

Rectifier

1 –

Inverter

2 –

Automatic Bypass

3 –

Manual Bypass

4 –

Mains Power

5 –

Load Bus Bar

6 –

External Battery Fuse

7 –

Battery

8 –

Fig. 3.4-1 Diagram RPA system with UPS on common 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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3.5 SERVICE AND TECHNICAL SUPPORT

Stamp of your Dealer or local responsible of the Technical Assistance

(see page 3)

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

GE Digital Energy

g

6595 RIAZZINO (CH)
MADE IN SWITZERLAND

Model

3

3

S

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Serial Nr.

Input Freq. Hz

Input Voltage VAC: 3W + N + PE

Input Current A

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Output Freq. Hz

Output Voltage VAC: 3W + N + PE

Output Current A

1

0

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E

G

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kVAOutput Power at Pow. factor





lag.Series Product. Year

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.

ON

ON

OFF

OFF

Fig. 3.5-1 Identification label

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OPM_LPS_3UO_30K_40K_0US_V010.doc Operating Manual LP 33 Series 30 & 40 kVA

3.6 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 (Carbon Fluor Clorid) or HCFCs (Halogen Carbon
Fluor Clorid).

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 specialised
companies!

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4 LAYOUT

4.1 LAYOUT LP 33 Series / 30 & 40 kVA

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Fig. 4.1-3 Control panel

Fig. 4.1-1 General view

BC

Fig. 4.1-4 Q1 & Q2 switches

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CI

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RS232

BC Battery cabinet

CI Customer Interface Board (optional)

F5-6-7 Battery fuses

ON

ON

OFF

OFF

Q1 UPS output switch

Q2 Manual bypass switch

RC Relay card

SNMP Advanced SNMP Card (optional)

F5-6-7

Fig. 4.1-2 General view with open door

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Q2 Q1

RS232 Serial port RS232

5 SYSTEM HANDLING

5.1 CONTROL PANEL

Fig. 5.1-1 Control panel

LCD screen Shows the UPS system data, events messages and UPS setting.

The data is displayed on 4 rows, 20 characters each, allowing the operator to select
between 7 languages: English, German, French, Spanish, Italian, Finnish or Polish.
If there is no keypad activity during 1 minute the LCD screen will return to default
screen.

Metering Shows electric parameters, operating statistics and some information screens (see

Section 6.1).

Alarm Shows in chronological order, all the events occurred (alarms, messages,

commands, handling, etc.) and resets general alarm / buzzer (see Section 6.2).

Menu Allows the user to adapt certain features of the UPS to his needs, to reset the

command total off, to test the LEDs panel, and to command the inverter ON/OFF (see
Section 6.3).

+ Scroll to following screen.

Entering in PARAMETER MENU/USER, allows to select the horizontal editable
position.

- Entering in Alarm and Metering, scroll to previous screen.

Entering in menu allows to select the row including the needed command.

Enter Confirms the selected command.

Entering in PARAMETER MENU/USER allows the user to change the parameters.

LED Alarm
(red)

LED Warning
(yellow)

LED Operation
(green)

It warns about the imminent inverter stop and the consequent load shutdown as
result of:

• The battery is fully discharged and the load cannot be transferred on mains
(default parameter = 3 min.).

• Overtemperature (default = 3 min.) or overload condition (125%-10 min, 150%-1
min.) and the load cannot be transferred on mains.

When blinking, it means the UPS is in alert condition with the buzzer sounding.
The yellow LED will remain lit after pressing the key Alarm.
It remains lit also when the output switch Q1 is open or battery disconnected.

When lit, it means the UPS is correctly operating and the load is powered by the
inverter. When blinking, it means SERVICE REQUIRED

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5.2 COMMAND PUSH BUTTONS AND SWITCHES

total off
Press simultaneously the keys “Alarm” and “-” on the

panel.
This will cause the opening of all contactors (K4, K6
and K7), shutdown of booster, Inverter, battery-
charger and SSM.

In a parallel system pressing total off
on one unit all the units will shut
down.

NOTE !

Fig. 6.2-1 Command total off

Using the command total off, the load will
be immediately powered down.

To restart the unit, command total off must be

restored entering the screen

MENU/RESET TOTAL OFF

LAMP TEST
RESET TOTAL OFF *

Q1 - UPS output switch

Q2 - Manual bypass switch

Fig. 6.2-2 Q1 & Q2 switches

NOTE !

Do not switch ON Q1 and Q2 with
Inverter ON.

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

Shows the UPS system data, events messages and UPS setting.
The data is displayed on 4 rows, 20 characters each, allowing the operator to select between 7
languages: English, German, French, Spanish, Italian, Finnish and Polish.
If there is no keypad activity during 1 minute the LCD screen will return to default screen.

6.1 METERING SCREENS (Metering)

This menu allows, when the keypad Metering is pressed, to show on the LCD panel a series of screens
containing metering information about AC and DC parameters.

LP 33 40kVA P1

APPLICATION ON UPS

= 70%

SERVICE REQUIRED

4. The signalling, combined with the green LED Operation blinking, is done only in case the respective
parameter (protected by password) has been enabled. See Section 8.4.

Udcp=215V Udcn=215V
Ubp=164V Ubn=164V O
Charge Level = 100%
Autonomy = 15min

Beside the indication of the Battery voltage on the display, a letter shows, according to the table
below, the operational status of SBM:

Sigle Status of charger Charter voltage Description

1. UPS family, nominal rating and for RPA: P + No. UPS.

2. Load status: application on UPS, on utility, supply off, manual

bypass (appl. on manual dev.) and ECO Mode.

3. The load amount as a percentage of the nominal load (referred
to the most loaded phase).

1. Booster DC voltage + pole (Udcp) and – pole (Udcn).

2. Battery DC voltage + pole (Ubp), – pole (Ubn) and the status
SBM (Superior Battery Management).

The functionality of SBM can help to reduce the Battery
recharging time, and improve the lifetime of the Battery.

O OFF 0 VDC Battery open circuit voltage

T ON Boost (176 VDC) Boost charge with new Battery

F ON Floating (164 VDC) Battery charged

L ON Floating (164 VDC) Normal charge

B ON Boost (176 VDC) Boost charge

E ON Boost (179 VDC) Battery equalization

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

3. Battery charge level.

4. Estimated battery backup time with actual load.

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MAINS

1. Mains input voltage information screen.

f=60.0Hz

U1=120V U2=119V

U3=121V

RECTIFIER

1. Rectifier input voltage information screen.

f=60.0Hz

U1=120V U2=119V

U3=121V

INVERTER: U1=120V

1. Inverter voltage information screen.

U2=120V U3=120V
Frequency = 60.0Hz

Synchronized

LOAD ON PHASE

1. Load on output phases information screen.

U1=120V I1=56A 50%
U2=120V I2=50A 45%
U3=120V I3=61A 55%

MISCELLANEOUS

1. Screen informing about the battery and time of operation.

Battery Temp. = +25°C
UPS Oper Time= 450h
INV Oper Time= 430h

MAINS FAULTS STAT.

1. Screen informing about the quality of the input power.

Minor = 100
Major = 150

Overloads = 30

IDENTIFICATION

1. Screen containing the data identifying the unit.

LP 33 40kVA P1

SW Version: x.x

S/N: Q0040-0105-0001

ECO Mode RATE 100%

Screen containing the statistic evaluation in % (100= good; 0= bad)

NR FAST TRANSIENT

<2ms >2ms >5ms >10ms

25 10 7 3

2. Mains input frequency.

3. Mains line voltage L1 (A) and L2 (B)phases.

4. Mains line voltage L3 (C) phase.

2. Mains input frequency.

3. Input line voltage L1 (A) and L2 (B) phases.

4. Input line voltage L3 (C) phase.

2. Output inverter line voltage L1 (A), L2 (B) and L3 (C) phases

3. Output frequency.

4. Synchronization status inverter with respect to mains.

2. Voltage, current and load percentage phase L1 (A).

3. Voltage, current and load percentage phase L2 (B).

4. Voltage, current and load percentage phase L3 (C).

2. Battery temperature.

3. Operating time (CPU powered) for the UPS (hours).

4. Operating time with inverter supplying the load (hours).

2. The quantity of bypass mains out of tolerance faults.

3. The quantity of rectifier mains out of tolerance faults.

4. The total number of detected output overloads.

2. UPS family, nominal rating and for RPA: P + no. UPS.

3. The software version implemented on the control board.

4. The serial number of the unit.

of the utility, for the ECO Mode operation.

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

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6.2 EVENT SCREENS (Alarm)

Each of the following listed alarms or messages can be displayed on the LCD screen or transmitted to a
PC through the serial port RS232 or the SNMP card (optional).

Entering the Alarm mode, the LCD screen displays a sequence of screens corresponding to the last 256
alarms & events, each screen indicating:

01.01.2005 12:15:45
NR=255 Status=A588
4580: INVERTER AND

MAINS SYNCHRONIZED

6.2.1 Alarms list

Are defined alarms: all the events which activate the LED Warning (yellow) and the buzzer in order

to alert the user about an abnormal situation.

Code Alarm Meaning

4000

4001

4004

4100

4102

4103

4110

4115

4116

SETUP VALUES

LOST

REGULATION BOARD

FAILURE

UPS

FAILURE

RECTIFIER FUSES

FAILURE

K4 CLOSING

FAILURE

K4 OPENING

FAILURE

RECTIFIER MAINS

OUT OF TOLERANCE

LOW BATTERY

VOLTAGE

HIGH BATTERY

VOLTAGE

1. The exact date and time when the event occurred.

2. The number (255 being the most recent) and status code.

3. The software version implemented on control board and
explicit text description of the event.

Parameters are lost and have been replaced with default
values.

Voltage supply +/-15 VDC has been detected out of tolerance
on the P1 – Control board or the programmable circuits are
defective.

The master unit detected the slave unit missing on the
communication bus even though switch Q1 is still closed.

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.

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

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

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

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.

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

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Code Alarm Meaning

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.

4118

BATTERY

FAULT

Battery test is stopped.
Rectifier and inverter are OFF.

4130

TURN ON RECT.

OR SHUTDOWN UPS

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

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).

4140

RECTIFIER

CONTROL FAILURE

The rectifier is switched OFF.
Inverter output fuses blown.

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

K7 not closed despite a closing command being done.
Signaled by auxiliary contact.
Load will be supplied by mains.

K7 not open despite an opening command being done.
Signaled by auxiliary contact.
Load will be supplied by mains.

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

4301

4304

4305

4312

INVERTER

FUSES FAILURE

K7 CLOSING

FAILURE

K7 OPENING

FAILURE

INV. VOLTAGE

OUT OF TOLERANCE

Detection of inverter bridge (Is) current limitation cause
inverter OFF and automatic restart (message 320).
After 3 times inverter switches OFF for persistent Is max
detection in time.

4320

ISMAX

DETECTION

Inverter switch OFF, and it can be restarted manually.

4340

4347

4402

4404

4405

4410

INVERTER

CONTROL FAILURE

OSCILLATOR

FAILURE

RECTIFIER

CANNOT BE TURNED ON

K6 CLOSING

FAILURE

K6 OPENING

FAILURE

BYPASS MAINS

OUT OF TOLERANCE

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

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

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

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

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

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

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Code Alarm Meaning

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

4520

NO INVERTER

POWER

Load is locked on mains because 3 transfers on mains have

4530

LOAD LOCKED

ON MAINS

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 MAINS

BY ERROR DETECTOR

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

Alarm after detection of an Emergency Off from an external

4563

EMERGENCY OFF

ACTIVATED

safety device connected on Customer Interface.
Consequently K4, K6 and K7 open and shut down inverter,
booster and rectifier.

The UPS-System is in an overload condition >125% on

4570 OVERLOAD

inverter, or >150% on mains.
A sequence of “stop operation” starts.
Time out depending on load quantity.

With mains bypass supply available and load >115%, the

4571

OVERLOAD:

LOAD ON MAINS

load is transferred on mains.
Load will be transferred again automatically on inverter
when load will be <100%.

4581

4697

4698

INVERTER AND

MAINS NOT SYNCH.

BATTERY

OVERTEMPERATURE

BATTERY POWER

INSUFFICIENT

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

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

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

Battery voltage is at the lowest limit.

4700 DC LOW

Shutdown of inverter until the battery voltage reaches the
value in respective parameter.

The load is locked on Inverter following 3 load transfers

4900

LOAD LOCKED

ON INVERTER

within 30 seconds.
After time out of the value in respective parameter (default
30 seconds), bypass will be free.

An overtemperature condition has been detected on

4955 OVERTEMPERATURE

inverter.
Elapsed “stop operation” time, inverter shutdown.
With mains available, load is transferred on mains.

4998

4999

LOAD OFF DUE TO

EXTENDED OVERLOAD

LOAD OFF DUE TO

UBATT OR TEMP.

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

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

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6.2.2 Messages list

Are defined messages: all the recorded events which are referred to the operation status coherent

with the normal situation of the UPS.

Code Message Meaning

4111

4114

4119

4120

4141

4161

4162

4163

4164

4302

4303

4361

RECTIFIER

MAINS OK

UPS SHUTDOWN

(LOW BATT VOLTAGE)

BATTERY TEST

STARTED

BATTERY TEST

STOPPED

ISMAX DETECTION

BOOSTER

RECTIFIER

ON

RECTIFIER

OFF

GENERATOR

ON

GENERATOR

OFF

INVERTER

CANNOT BE

TURNED ON

INVERTER

CANNOT BE

TURNED OFF

INVERTER

ON

Rectifier input mains is again within the admitted tolerance
(voltage, frequency and phase).

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

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

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

Detection of persistent booster (Is) current limitation.

Rectifier received the command to switch ON.

Rectifier received the command to switch OFF for:
input mains out of tolerance / EPO / UDC max.

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

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

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

• Overtemperature;

•

Low battery voltage;

• Inverter fuses;

•

Overload;

• K7 opening failure;

• High battery voltage;

• DC low;

• EPO (Emergency Power Off).

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

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

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Code Message Meaning

4362

INVERTER

OFF

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

4411

4500

4521

4534

4535

4536

4561

4562

4564

4567

BYPASS MAINS

OK

COMMAND

LOAD OFF

NO BYPASS

POWER

MULTIPLE LOAD

TRANSFER

BYPASS

LOCKED

BYPASS

FREE

TOTAL

OFF

DETOUR

ON

DETOUR

OFF

COMMAND

LOAD ON MAINS

Bypass input mains is again within the admitted tolerance
(voltage, frequency and phase).

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

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

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

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

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

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

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

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

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

4568

4572

4580

4582

4583

4600

4601

COMMAND

LOAD ON INVERTER

NO MORE

OVERLOAD

INVERTER AND

MAINS SYNCHRONIZED

COMMAND NOT TO

SYNCHRONIZE

COMMAND TO
SYNCHRONIZE

COMMAND

UPS ON

COMMAND UPS

STAND BY

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

End of the overload condition previously detected with alarm

4570.

The voltages of inverter and mains bypass are synchronized.

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

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

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.

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

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Code Message Meaning

4602

Q1

OPEN

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

4603

4699

4763

4764

Q1

CLOSED

BATTERY TEST

IMPOSSIBLE

REMOTE CONTROL

ON

REMOTE CONTROL

OFF

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

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

•

No mains rectifier or bypass;

• Battery not fully charged;

•

Load is below 10% or above 80%.

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 serial port on CI (TLC).
2 = Both.

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 serial port on CI (TLC).
2 = Both.

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6.2.3 Event report LP 33 Series

In case of failure or malfunction, before calling the nearest Service Centre 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 Centre we suggest you make a copy of this
page, fill it in with the requested data, and send it by fax.

LP 33 Series

User:

.........................……………………………........…………...……………....…..

.........................……………………………........…………...……………....…..

.........................……………………………........…………...……………....…..

.........................……………………………........…………...……………....…..

Event No. Code Status Date Hour

LP 33 Series /

Description of repair action taken:

255

254

253

252

251

250

249

248

247

246

245

244

243

242

241

240

239

238

237

236

235

234

233

232

231

230

UPS No.:

Responsible:

Date:

..........................……………………………........…………………..........................………...................

..........................……………………………........…………………..........................………...................

..........................……………………………........…………………..........................………...................

..........................……………………………........…………………..........................………...................

..........................……………………………........…………………..........................………...................

.……...... - .….…..... - ...….......

........................……………………………………..…

…... / .….. / …...

Actual situation:

..........................……………………………........…………………..........................………...................

..........................……………………………........…………………..........................………...................

..........................……………………………........…………………..........................………...................

..........................……………………………........…………………..........................………...................

..........................……………………………........…………………..........................………...................

Remarks:

..........................……………………………........…………………..........................………...................

..........................……………………………........…………………..........................………...................

..........................……………………………........…………………..........................………...................

..........................……………………………........…………………..........................………...................

..........................……………………………........…………………..........................………...................

kVA

....…......

Signature:

Series:

....……....……..…

…….....

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6.3 MENU SCREENS (Menu)

Pressing the menu keypad a series of screens will be displayed, permitting the user to set some
functions of the UPS, to restore the command total off, to perform the LEDs TEST, and to switch the
inverter ON/OFF.

LP 33 40kVA P1
UPS ON

COMMAND MENU
INVERTER ON *
INVERTER OFF

LAMP TEST
RESET TOTAL OFF *

PARAMETER MENU

LEVEL 1: USER
LEVEL 2: SERVICE

ALARMS

UPS FAILURE

CALL SERVICE

1. UPS family, nominal rating and for RPA: P + No. UPS.

2. The operating mode of the UPS (UPS ON/OFF).

1. Screen inverter command.

2. Inverter ON.

3. Inverter OFF.
(The visualization of *, indicates the Inverter status).

1. Signaling LEDs test and buzzer test.

2. Restore the output supply following the command total off
(the asterisk * beside the text means that the command total
off has been activated with Q1 closed).

1. Screen parameters set-up for user and service.

3. Level 1: this first level not protected by password allows

the user to modify some parameters of the UPS
(see Section 6.3.1).

4. Level 2: access protected by password reserved for service

engineers.

1. Screen indicating the presence of alarm condition and the
consequent operation mode.

2. UPS status: UPS shutdown due to UPS FAILURE (fuse blown) or
abnormal conditions for UPS (OVERTEMPERATURE or MAINS
FAILURE).

3. Action needed following the alarm condition CALL SERVICE or
output statement which can be APPLIC.
ON UTILITY if the output is powered by mains or
APPLIC. PROTECTED when the load is normally powered by
the inverter.

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6.3.1 User parameters screen

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

This screen can be accessed by entering MENU/PARAMETER MENU/LEVEL 1: USER and confirming with
the key Enter.

PARAMETER MENU

LEVEL 1: USER
LEVEL 2: SERVICE

In PARAMETER MENU the buttons + / - / Enter perform the following functions:

+ This key allows to scroll forward to the next screen and, once the key Enter has been pressed,

to move the horizontal selection to the next editable position.

- This key allows to move the selection to the next parameter and, once the key Enter has been

pressed, to change the value of the selected character by the underscore cursor.

Enter Start the editing for the currently selected parameter.

1. Date and time set-up

DATE AND TIME

D M Y
Date: 01.01.2005
Hour: 12:15:45

2. Modem protocol set-up

PROTOCOL SETUP

Modem enabled = N
Init=BEQV1X3&D0S0=2
Alarm=N Delay=30s

1. Date and time setup.

2. D = Day M = Month Y = Year.

3. Date set-up: the set value is thoroughly checked to be a

4. Time set-up: the set value is thoroughly checked to be a

1. Modem protocol set-up.

2. Y: enables or N: disables the modem call.

3. Init: this parameter presents the modem initialization string.
It can be 39 characters long and considers that a blank
character terminates the string.
If no blank character is found then all 39 characters are
used

correct format “dd.mm.yyyy”.

correct format “hh.mm.ss”.
The time is specified in 24 hour format.

4. Alarm: Y/N 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.

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3. Telephone numbers set-up

Tel1:
Tel1 enabled: N
Tel2:
Tel2 enabled: N

Tel1: This parameter specifies a first tel. number to be used for

modem dial-out.
The telephone number has a maximum of 39 characters
and cannot contain intermediate blank.
If the desired number is shorter than 39 characters, finish
the string with blanks.

Tel1 enabled: this parameter Y/N specifies if the first telephone number will be used for dial-out.

Tel2: it records the second dial-out number.

Tel2 enabled: this parameter Y/N specifies if the second telephone number will be used for dial-out.

Tel3: it records the third dial-out number.

Tel3 enabled: this parameter Y/N specifies if the third telephone number will be used for dial-out.

Tel4: it records the fourth dial-out number.

Tel4 enabled: this parameter Y/N specifies if the fourth telephone number will be used for dial-out.

4. LCD Display

LCD Display

UPS NAME: LP 33

Language = ENGLISH

1. LCD display screen.

2. UPS name: the user can choice the name of the UPS model

showed on the main page (11 digits).

4. Language: his parameter allows the choice of language

used to display the information.
Valid choices are English, German, French,
Spanish, Italian, Finnish and Polish.

5. Operation mode selection (VFI Mode or ECO Mode)

ECO Mode Y

d1 d2 d3 d4 d5 d6 d7

HOURS SELECTED

24 24 12 12 12 12 12

1. ECO Mode

NOTE !

The ECO Mode can only be activated on single units.

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 / disactivation 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.

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2. d1 ÷ 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 STOP time is reached (the

ECO STOP time of the same day if this is later than the ECO START time, the
ECO 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 START time (the ECO START time of the
same day if this is earlier than the ECO STOP time, the ECO START time of the previous day
otherwise).

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

3. HOURS SELECTED: The number of ECO Mode hours per weekday (from d1 - Saturday to d7 -

Friday) is displayed in the operation mode parameter window (ceiling
value).

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

Example 1

: For continuous ECO Mode set the ECO START times to 00:00 and the ECO STOP times to

23:59 for all weekdays, but almost 1 day must have 1 minute of VFI programmation: 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 START 00:00 00:00 00:00 00:00 00:00 00:00 00:00

ECO 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 START 18:00, ECO 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 START 00:00 00:00 00:00 18:00 00:00 00:00 00:00

ECO 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 ÷ 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 START 00:00 00:00 18:00 18:00 18:00 18:00 18:00

ECO STOP 23:59 23:59 06:00 06:00 06:00 06:00 06:00

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OPM_LPS_3UO_30K_40K_0US_V010.doc Operating Manual LP 33 Series 30 & 40 kVA

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

ECO STOP 23:59 20:00 23:59 06:00 06:00 00:00 13:00

ECO START

ECO STOP

In dark colour are displayed the times with ECO Mode operation.
The arrows indicate the conditions given by the ECO START and ECO STOP times introduced with the

parameters.
Note that on day d6 - Tuesday the interval has length 0 (zero), therefore the ECO Mode is not enabled on

this day.

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

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

ECO START

ECO 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 STOP time of weekday d4 - Tuesday).

The ECO STOP time of weekday d3 - Monday has no effect as it is followed by the ECO 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 START time of weekday d5 - Wednesday has no effect as it is preceded by the ECO START time
of weekday d4 - Tuesday.
It can be, without change of meaning, any time between 00:00 and 06:00.

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 becomes active only if the load is supplied from inverter.

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7 OPERATION

7.1 PROCEDURES FOR SINGLE LP 33 Series

7.1.1 Start-up of the LP 33 Series

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 mains 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 fuses F5, F6, F7 (and eventual external fuses in case of external battery)

are removed.

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 mains should be
unavailable.

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

1. Switch ON the mains power at the input distribution panel.

As a result the UPS performs a self-test and the LCD will show
the following screen:

NOTE !

In case the alarm “4410 - Mains bypass out of

tolerance” persists, please contact your Service
Center.

EXECUTING MAINBOARD

SELF TEST
00000000000
SELF TEST OK!

2. Insert the battery fuses F5, F6, F7 and eventual external fuses in case of external battery.

Continue ►

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3. Switch On the output switch Q1 (Pos. I).

The output will be supplied by the mains through the bypass.

Verify, selecting the screen METERING/Udcp and Udcn, that the
booster voltage has reached about 215 VDC.

LP 33 40kVA

APPLICAT. ON UTILITY

= 70%

Udcp=215V Udcn=215V
Ubp=164V Ubn=164V F
Charge level = 100%
Autonomy = 800min

4. Switch On the inverter entering the screen:
MENU/COMMAND MENU/INVERTER ON

Some seconds later the load will be transferred on inverter
and the main screen will display: APPLICATION ON UPS

COMMAND MENU

INVERTER ON *

INVERTER OFF

LP 33 40kVA

APPLICATION ON UPS

= 70%

5. Operation mode selection.
LP 33 Series is delivered normally selected for permanent VFI operation.

ECO Mode can be enabled and the ECO START time & ECO STOP time can be programmed for each
day of the week (see Section 6.3.1-5).

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 a few hours in order to provide the
complete battery energy stored to the load in the event of mains 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 mains 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.

1. Switch OFF the inverter by entering the screen:
MENU/COMMAND MENU/INVERTER OFF
Attention: to switch OFF permanently the inverter the key

Enter must be pressed 2 times.

COMMAND MENU

INVERTER ON
INVERTER OFF *

The output will be supplied by the mains through the automatic
bypass.

LP 33 40kVA

APPLICAT. ON UTILITY

= 70%

2. Switch ON the maintenance bypass Q2 (Pos. I).

LP 33 40kVA

APPL. ON MANUAL DEV.

= 70%

3. Switch OFF the output switch Q1 (Pos. 0).

4. Perform the command total off.

5. Remove the battery fuses F5, F6, F7 and eventual external fuses in case of external battery.

Continue ►

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6. In order to discharge the DC link capacitors, start once more
the inverter through the screen:

MENU/COMMAND MENU/INVERTER ON

Remark: command INVERTER ON will be enabled only when

the inverter voltage of each phase decreases below
7 VAC (about 30 seconds).

Before proceeding to step 7, check on the display panel that the
DC link voltage (both polarities) Udcp and Udcn has reached the
minimum voltage of 5 VDC (about 30 seconds).

INVERTER ON *

INVERTER OFF

INVERTER: U1= 7V
U2= 7V U3= 7V
Frequency = 60.0Hz

Udcp= 5V Udcn= 5V
Ubp=0V Ubn=0V O
Charge level = 0%
Autonomy = 0min

7. Switch OFF the inverter by entering the screen:
MENU/COMMAND MENU/INVERTER OFF

INVERTER ON

INVERTER OFF *

The load is now powered directly by mains through the manual bypass Q2.

COMMAND MENU

Synchronized

COMMAND MENU

END OF PROCEDURE

WARNING !

The UPS cabinet contains parts electrically live.
Apart from the front door, do not open any other part of the UPS.

NOTE !

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

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OPM_LPS_3UO_30K_40K_0US_V010.doc Operating Manual LP 33 Series 30 & 40 kVA

7.1.3 Start-up following the operation on manual bypass (Q2)

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

• The inverter is switched OFF;

• The manual bypass switch Q2 is switched ON (pos. I);

•

The output switch Q1 is switched OFF (Pos. 0);

• The battery fuses F5, F6, F7 (and eventual external fuses in case of external battery) are removed.

NOTE !

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

1. Insert the battery fuses F5, F6, F7 and eventual external fuses in case of external battery.

2. Switch ON the output switch Q1 (Pos. I).

3. Only in case it has been previously activated (* present beside

the text RESET TOTAL OFF), restore the command total off by
entering the screen:

MENU/RESET TOTAL OFF

LED TEST

RESET TOTAL OFF *

4. Switch OFF the maintenance bypass Q2 (Pos. 0).

Verify, selecting the screen METERING/Udcp and Udcn, that the

booster voltage has reached about 215 VDC.

5. Switch ON the inverter by entering the screen:
MENU/COMMAND MENU/INVERTER ON

Some seconds later the load will be transferred on inverter and
the main screen will display: APPLICATION ON UPS

END OF PROCEDURE

Udcp=215V Udcn=215V
Ubp=164V Ubn=164V F
Charge level = 100%

Autonomy = 800min

COMMAND MENU

INVERTER ON *

INVERTER OFF

LP 33 40kVA

APPLICATION ON UPS

= 70%

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OPM_LPS_3UO_30K_40K_0US_V010.doc Operating Manual LP 33 Series 30 & 40 kVA

7.1.4 Complete shutdown

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

NOTE !

This procedure involves all equipment powered by UPS, to be shut down.

1. Perform the command total off.

2. Switch OFF the output switch Q1 (Pos. 0).

3. Remove the battery fuses F5, F6, F7 and eventual external fuses in case of external battery.

4. In order to discharge the DC link capacitors, start once more
the inverter through the screen:

MENU/COMMAND MENU/INVERTER ON

Remark: command INVERTER ON will be enabled only when

the inverter voltage of each phase decreases
below 7 VAC (about 30 seconds).

COMMAND MENU

INVERTER ON *

INVERTER OFF

INVERTER: U1= 7V
U2= 7V U3= 7V
Frequency = 60.0Hz

Synchronized

Before proceeding to step 5, check on the display panel that
the DC link voltage (both polarities) Udcp and Udcn has reached
the minimum voltage of 5 VDC (about 30 seconds).

Udcp= 5V Udcn= 5V
Ubp=0V Ubn=0V O
Charge level = 0%
Autonomy = 0min

5. Switch OFF the inverter by entering the screen:
MENU/COMMAND MENU/INVERTER OFF

COMMAND MENU
INVERTER ON
INVERTER OFF *

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

END OF PROCEDURE

CAUTION !

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

WARNING !

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 about 15 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 to be status of the activation of “total off”, i. e. Q1 closed, Q2 open
and the battery fuses F5, F6, F7 (and eventual external fuses in case of external
battery) connected.

View of the panel after pressing the button “total off”:

•

• Booster, inverter and Static-Switch shutdown.

1. Reset “total off”.

All Contactors are open.

Restore the command “total off” by entering the screen:
MENU/RESET TOTAL OFF

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

The booster starts automatically.

The LCD screen must display the status:

APPLICATION ON BYPASS

LP 33 40kVA

APPLICAT. SUPPLY OFF

= 0%

LED TEST

RESET TOTAL OFF *

LP 33 40kVA

APPLICATION ON BYPASS

= 70%

2. Switch ON the inverter by entering the screen:
MENU/COMMAND MENU/INVERTER ON

The LCD screen must display the status:

APPLICATION ON UPS

COMMAND MENU

INVERTER ON *

INVERTER OFF

LP 33 40kVA

APPLICATION ON UPS

= 70%

END OF PROCEDURE

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

NOTE !

Make sure the UPS to be status of the activation of “EPO”, i. e. Q1 closed, Q2 open and
the battery fuses F5, F6, F7 (and eventual external fuses in case of external battery)
connected.

View of the panel after pressing the button “EPO”:

• All Contactors are open.

•

1. Reset the button “EPO”.

Booster, inverter and Static-Switch shutdown.

Press Alarm, to reset alarm and buzzer.

LP 33 40kVA

APPLICAT. SUPPLY OFF

01.01.2005 12:15:45
NR=255 Status=A588

4563: EMERGENCY OFF

2. Reset the UPS by entering the screen:
MENU/COMMAND MENU/INVERTER OFF

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

The booster starts automatically.

The LCD screen must display the status:

APPLICATION ON BYPASS

COMMAND MENU

INVERTER ON *

INVERTER OFF

LP 33 40kVA

APPLICATION ON BYPASS

= 0%

ACTIVATED

= 70%

3. Switch ON the inverter by entering the screen:
MENU/COMMAND MENU/INVERTER ON

The load will be automatically transferred from mains to the
inverter.

The LCD screen must display the status:

APPLICATION ON UPS

COMMAND MENU

INVERTER ON *

INVERTER OFF

LP 33 40kVA

APPLICATION ON UPS

= 70%

END OF PROCEDURE

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OPM_LPS_3UO_30K_40K_0US_V010.doc Operating Manual LP 33 Series 30 & 40 kVA

7.2 PROCEDURES FOR PARALLEL SYSTEM LP 33 Series

7.2.1 Parallel System start-up of the LP 33 Series

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 mains 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 fuses F5, F6, F7 (and eventual external fuses in case of external battery)

are removed.

This procedure must be performed for the first start-up following the installation, with all the units
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 mains should be
unavailable.

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

1. Switch ON the mains power for each unit at the input
distribution panel.

As a result each unit performs a self-test and the LCD will show
the following screen:

The LCD screen will display the number of the unit in the parallel
system (P1, P2, P3 or P4).

NOTE !

In case the alarm “4410 - Mains bypass out of

tolerance” persists, please contact your Service
Center.

EXECUTING MAINBOARD

SELF TEST
00000000000
SELF TEST OK!

2. Insert the battery fuses F5, F6, F7 (and eventual external fuses in case of external battery) on
each unit.

Continue ►

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3. Switch ON the output switch Q1 (Pos. I) on each unit.

When the last Q1 will be closed, the output will be supplied by

the mains through all bypass.

Verify, selecting the screen METERING/Udcp and Udcn, that the
booster voltage has reached about 215 VDC.

LP 33 40kVA P1

APPLICAT. ON UTILITY

= 70%

Udcp=215V Udcn=215V
Ubp=164V Ubn=164V F
Charge level = 100%
Autonomy = 800min

4. Switch ON the inverter on the first unit entering the screen:

MENU/COMMAND MENU/INVERTER ON

5. Switch ON the inverter on the other units in the same manner.

(Do not start the next inverter until the sequence of the previous
one ends – about 10 seconds).

Some seconds later the load will be transferred on inverter and
the main screen of each unit will display:

APPLICATION ON UPS

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 a few hours in order to provide the
complete battery energy stored to the load in the event of mains failure.

END OF PROCEDURE

COMMAND MENU

INVERTER ON *

INVERTER OFF

COMMAND MENU

INVERTER ON *

INVERTER OFF

LP 33 40kVA P1

APPLICATION ON UPS

= 70%

Modifications reserved Page 44/57

OPM_LPS_3UO_30K_40K_0US_V010.doc Operating Manual LP 33 Series 30 & 40 kVA

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 mains 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.

1. Switch OFF the inverter on each unit entering the screen:
MENU/COMMAND MENU/INVERTER OFF

Attention: to switch OFF permanently the inverter the key

Enter must be pressed 2 times.

COMMAND MENU
INVERTER ON
INVERTER OFF *

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

LP 33 40kVA P1

APPLICAT. ON UTILITY

= 70%

2. Switch ON the maintenance bypass Q2 (I) on each unit.

LP 33 40kVA P1

APPL. ON MANUAL DEV.

= 70%

3. Switch OFF the output switch Q1 (0) on each unit.

4. Perform the command total off on each unit.

5. Remove the battery fuses F5, F6, F7 (and eventual external fuses in case of external battery) on
each unit.

Continue

►

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6. In order to discharge the DC link capacitors, start once more
the inverter on each unit through the screen:

MENU/COMMAND MENU/INVERTER ON

Remark: command INVERTER ON will be enabled only when

the inverter voltage of each phase decreases
below 7 VAC (about 30 seconds).

Before proceeding to step 7, check on the display panel that
the DC link voltage (both polarities) Udcp and Udcn has reached
the minimum voltage of 5 VDC (about 30 seconds).

COMMAND MENU

INVERTER ON *

INVERTER OFF

INVERTER: U1= 7V
U2= 7V U3= 7V
Frequency = 60.0Hz

Synchronized

Udcp= 5V Udcn= 5V
Ubp=0V Ubn=0V O
Charge level = 0%
Autonomy = 0min

7. Switch OFF the inverter on each unit entering the screen:
MENU/COMMAND MENU/INVERTER OFF

COMMAND MENU

INVERTER ON

INVERTER OFF *

The load is now supplied directly from the mains through the manual switches Q2.

END OF PROCEDURE

WARNING !

The UPS cabinet contains parts electrically live.
Apart from the front door, do not open any other part of the UPS.

NOTE !

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

Modifications reserved Page 46/57

OPM_LPS_3UO_30K_40K_0US_V010.doc Operating Manual LP 33 Series 30 & 40 kVA

7.2.3 Start-up following the operation on maintenance bypass (Q2)

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

• The inverter is switched OFF;

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

•

The output switch Q1 is switched OFF (Pos. 0);

• The battery fuses F5, F6, F7 (and eventual external fuses in case of external battery) are removed.

1. Insert the rectifier input fuses F1, F2, F3 and the battery fuses F9, F10, F11 / F13, F14, F15 (and
eventual external battery fuses) on each unit.

2. Switch ON the output switch Q1 (Pos. I) on each unit.

on

LED TEST

RESET TOTAL OFF *

3. Only in case it has been previously activated (* present beside
the text RESET TOTAL OFF), restore the command total off

any one of the units

MENU/RESET TOTAL OFF

by entering the screen:

4. Open the maintenance bypass switch Q2 (Pos. 0) on each
unit.

Verify, selecting the screen METERING/Udcp and Udcn, that the
booster voltage has reached about 215 VDC on each unit.

5. Switch ON the inverter on each unit entering the screen:
MENU/ COMMAND MENU /INVERTER ON

(Do not start the next inverter until the sequence of the
previous one ends – about 10 seconds).

The load will be automatically transferred from mains to the
inverters as the needed power requested from the applied load
is achieved on inverter side.

The main screen of each unit will display:

APPLICATION ON UPS

Udcp=215V Udcn=215V
Ubp=164V Ubn=164V F
Charge level = 100%

Autonomy = 800min

COMMAND MENU

INVERTER ON *

INVERTER OFF

LP 33 40kVA P1

APPLICATION ON UPS

= 70%

END OF PROCEDURE

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OPM_LPS_3UO_30K_40K_0US_V010.doc Operating Manual LP 33 Series 30 & 40 kVA

7.2.4 Shutdown of a single unit in a parallel system

With purpose to separate one unit from the parallel system.

1. Switch OFF the inverter only on this unit entering the screen:

MENU/COMMAND MENU/INVERTER OFF
Attention: to switch OFF permanently the inverter the key

Enter must be pressed 2 times.

2. Switch OFF the output switch Q1 (0) only on this unit.

3. Perform the command total off only on this unit.

4. Remove the battery fuses F5, F6, F7 (and eventual external fuses in case of external battery)
only on this unit.

5. In order to discharge the DC link capacitors, start once more
the inverter only on this unit through the screen:

MENU/COMMAND MENU/INVERTER ON

Remark: command INVERTER ON will be enabled only when

the inverter voltage of each phase decreases
below 7 VAC (about 30 seconds).

Before proceeding to step 6, check on the display panel that
the DC link voltage (both polarities) Udcp and Udcn has reached
the minimum voltage of 5 VDC (about 30 seconds).

6. Switch OFF the inverter only on this unit entering the screen:
MENU/COMMAND MENU/INVERTER OFF

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

COMMAND MENU
INVERTER ON
INVERTER OFF *

COMMAND MENU

INVERTER ON *

INVERTER OFF

INVERTER: U1= 7V
U2= 7V U3= 7V
Frequency = 60.0Hz

Synchronized

Udcp= 5V Udcn= 5V
Ubp=0V Ubn=0V O
Charge level = 0%
Autonomy = 0min

COMMAND MENU
INVERTER ON
INVERTER OFF *

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 Section 4.8.4).

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7.2.5 Start-up an additional unit in a parallel system

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 mains 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 fuses F5, F6, F7 (and eventual external fuses in case of external battery)
are removed.

This procedure must be performed when the load is supplied by the other units of the UPS 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.

1. Switch ON the mains power at the input distribution pane on
this unit.

As a result the UPS performs a self-test and the LCD will show
the following screen:

NOTE !

EXECUTING MAINBOARD

SELF TEST
00000000000
SELF TEST OK!

In case the alarm “4410 - Mains bypass out of tolerance” persists, please contact
your Service Center.

2. Insert the battery fuses F5, F6, F7 (and eventual external fuses in case of external battery) on
this unit.

3. Switch ON the output switch Q1 (Pos. I) on this unit.

Verify, selecting the screen METERING/Udcp and Udcn, that the
booster voltage has reached about 215 VDC of this unit.

LP 33 40kVA P2

APPLICAT. ON UTILITY

= 70%

Udcp=215V Udcn=215V
Ubp=164V Ubn=164V F
Charge level = 100%
Autonomy = 800min

4. Switch ON the inverter of this unit entering the screen:
MENU/COMMAND MENU/INVERTER ON

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.

The main screen of each unit will display: APPLICATION ON UPS

COMMAND MENU

INVERTER ON *

INVERTER OFF

LP 33 40kVA P2

APPLICATION ON UPS

= 70%

END OF PROCEDURE

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7.2.6 Complete shutdown of a parallel system

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

NOTE !

This procedure involves all equipment powered by parallel system, to be shut down.

1. Perform the command total off on any one of the units.

2. Switch OFF the output switch Q1 (Pos. 0) on each unit.

3. Remove the battery fuses F5, F6, F7 (and eventual external fuses in case of external battery) on
each unit.

4. In order to discharge the DC link capacitors, start once more
the inverter on each unit through the screen:

MENU/COMMAND MENU/INVERTER ON

Remark: command INVERTER ON will be enabled only when

the inverter voltage of each phase decreases
below 7 VAC (about 30 seconds).

Before proceeding to step 5, check on the display panel that
the DC link voltage (both polarities) Udcp and Udcn has reached
the minimum voltage of 5 VDC (about 30 seconds).

5. Switch OFF the inverter on each unit entering the screen:
MENU/COMMAND MENU/INVERTER OFF

6. Switch OFF the mains power of each unit at the AC input distribution panel.

END OF PROCEDURE

CAUTION !

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

WARNING !

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 about 15 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.

COMMAND MENU

INVERTER ON *

INVERTER OFF

INVERTER: U1= 7V
U2= 7V U3= 7V
Frequency = 60.0Hz

Synchronized

Udcp= 5V Udcn= 5V
Ubp=0V Ubn=0V O
Charge level = 0%
Autonomy = 0min

MENU COMANDI
INVERTER ON
INVERTER OFF *

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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 the battery fuses F5, F6, F7 (and eventual external fuses in
case of external battery) connected.

View of the panel after pressing the button “total off”:

• All Contactors are open.

•

1. Reset “total off” of the parallel system.

Booster, inverter eand Static-Switch shutdown.

Restore the command “total off”, on any one of the units, by
entering the screen: MENU/RESET TOTAL OFF

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

The LCD screen must display on all Units the status:

APPLICATION ON BYPASS

LP 33 40kVA P1

APPLICAT. SUPPLY OFF

= 0%

LED TEST

RESET TOTAL OFF *

LP 33 40kVA P1

APPLICATION ON BYPASS

= 70%

2. Switch ON the inverter on first unit by entering the screen:
MENU/COMMAND MENU/INVERTER ON

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

3. Switch ON the inverter on the other units by entering the
screen: MENU/COMMAND MENU/INVERTER ON

(Do not start the next inverter until the sequence of the previous
one ends – about 10 seconds).

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.

The LCD screen must display on all Units the status:

APPLICATION ON UPS

END OF PROCEDURE

COMMAND MENU

INVERTER ON *

INVERTER OFF

COMMAND MENU

INVERTER ON *

INVERTER OFF

LP 33 40kVA P1

APPLICATION ON UPS

= 70%

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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, i. e.
Q1 closed, Q2 open and the battery fuses F5, F6, F7 (and eventual external fuses in case
of external battery) connected.

View of the panel after pressing the button “EPO”:

• All Contactors are open.

•

1. Reset the button “EPO”.

Booster, inverter and Static-Switch shutdown.

Press Alarm, to reset alarm and buzzer.

LP 33 40kVA P1

APPLICAT. SUPPLY OFF

01.01.2005 12:15:45
NR=255 Status=A588

4563: EMERGENCY OFF

2. Reset all UPS by entering the screen:
MENU/COMMAND MENU/INVERTER OFF
The load is supplied by the mains through the automatic

bypass.

The booster starts automatically.

The LCD screen must display on all Units the status:

APPLICATION ON BYPASS

COMMAND MENU

INVERTER ON *

INVERTER OFF

LP 33 40kVA P1

APPLICATION ON BYPASS

3. Switch ON the inverter on first unit by entering the screen:
MENU/COMMAND MENU/INVERTER ON

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

COMMAND MENU

INVERTER ON *

INVERTER OFF

4. Switch ON the inverter on the other units by entering the
screen: MENU/COMMAND MENU/INVERTER ON

(Do not start the next inverter until the sequence of the previous
one ends – about 10 seconds).

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.

The LCD screen must display on all Units the status:

APPLICATION ON UPS

INVERTER ON *

INVERTER OFF

LP 33 40kVA P1

APPLICATION ON UPS

= 0%

ACTIVATED

= 70%

MENU COMANDI

= 70%

END OF PROCEDURE

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OPM_LPS_3UO_30K_40K_0US_V010.doc Operating Manual LP 33 Series 30 & 40 kVA

8 OPTIONS

T

8.1 OPTIONS GENERAL VIEW

LPS33U_030-040_RPA system_GE_01

LP 33 Series

1

RPA
Board

L

P
S

3

3
U

_
O

P

T

_
C

a

b

i
n
e

t
b

a

t
t
e

r
y
_

0
1

UTILITY INPU

F2F1 F3 F4

LP 33 Series

2

RPA

Board

LOAD

LP 33 Series

3

RPA
Board

LP 33 Series

4

RPA
Board

SGT4000_customer interface_02

21

1615141312 222120191817

1234567891011

RPA kit

Redundant Parallel Architecture

Allows to extend 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.

Additional battery charge

For battery with extended backup time (max. 15A).

Dimensions (WxDxH): 16.93” x 28.55” x 70.95” / 430 x 725 x 1802 mm

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 (UPS-MIB (RFC-1628); GE Single MIB; GE Parallel MIB).

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.

Connectivity Software

JUMP Software Suite / IRIS Service, etc.

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Software application for the control and monitoring of the UPS.

9 MAINTENANCE

WARNING !

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

9.1 GENERAL MAINTENANCE

When used properly, the LP 33 Series UPS is virtually maintenance free.
Take care of proper environmental conditions (see Installation Guide - Section 3.5 – Ventilation & Cooling)
and keep air inlets/outlets free from dust and any other obstacle.

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 33 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 mains 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.

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9.4 SERVICE REQUIRED

LP 33 40 kVA

APPLICATION ON UPS

= 70%

SERVICE REQUIRED

Some components of the UPS which need periodic maintenance, if not replaced, could cause a
reliability reduction of the supply system.

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.

If this lamp lights up during the normal operation (service
parameter with password), the performances of the UPS remain the
same, but that means the unit has not been serviced for the last

20.000 hours by a qualified GE Service Engineer.

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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

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RIDER FOR WARRANTY FOR SALE OF SiteProTM, DIGITAL ENERGYTM SG Series and LP Series UPS.

j

This Rider incorporates by reference the Terms and Conditions in
GE Industrial Systems (herein called GE) GETC2003, and includes the
following additional provisions contained herein.
In the event of conflict between this Rider and GETC2003, the Rider
shall take precedence.

Limitation on use with life support equipment:

Customer understands and agrees that the products sold
hereunder are not intended for application or use, and shall not be
used: (i) in conjunction with or for life support equipment when
failure of any product can be reasonably be expected to cause
failure of or diminish the effectiveness of such life support Customer
represents and warrants that it shall NOT USE THE PRODUCTS FOR
ANY SUCH PURPOSES, OR PERMIT OTHERS TO USE THE PRODUCTS
FOR ANY SUCH PURPOSES.
If, in breach of the foregoing, any such use occurs, Seller shall have
no liability for any resulting damage or injury, in addition to any
other legal or equitable rights of Seller, Customer shall indemnify
Seller against any such liability, whether arising as a result of
breach of contract, warranty, indemnity, tort (including negligence),

strict liability or otherwise

.

WARRANTY: Seller warrants to Customer that during the “Warranty
Period” applicable for its SitePro, Digital Energy
Series UPS Product furnished hereunder (the “Product”) will be free
from defects in material, workmanship and title.
The warranty period (“Warranty Period”) for the specified
Product begins on the earlier of three (3) months after the delivery
date or upon commissioning of the Product (if applicable) and ends
at the end of the period as set forth below:
The Warranty Period for the specified Product is as follows:

SitePro / Digital Energy
LP Series UPS 24 Months

In no case does this warranty apply to any failure or
nonconformance with specifications caused by or attributable to
any associated or complementary products not supplied under
these Terms and Conditions, nor shall it in any case apply to the
quantity or quality of the product of Customer or the process of
manufacture on which any products are used.
The warranties and remedies set forth herein are conditioned upon
(a) proper transportation, handling, storage, installation,
commissioning, operation, use and maintenance in conformance
with the operation instruction manuals (including revisions thereto)
provided by Seller, any applicable recommendations of Seller and
any applicable laws, regulations or codes (b) repair or modification
pursuant to Seller’s instructions or approval and (c) Customer
promptly notifying Seller of any defects and, if required, promptly
making the Product available for correction at Customer’s expense.
This warranty shall not apply (a) if Customer or any other
unauthorized person has made any modifications, alterations or
repairs to the Product not authorized by Seller, including
Customer’s use of parts in conjunction with the Product (excluding
batteries) not admitted or delivered by Seller, (b) to a Product with
removed or altered serial numbers, (c) to a Product damaged by
acts of God, sources external to the Product, misuse, accident,
abuse, neglect, negligence, or use beyond rated capacity, and (d) if
GE authorized field service technician does not commission Digital
Energyæ SG Series UPS and SitePro UPS.

If any Product or service fails to meet the foregoing warranties
(except title), Seller shall thereupon correct any such failure either,
at its option, by (i) repairing any defective or damaged part or
Product and/or reperforming any defective service or (ii) making
available, F.O.B. at Seller’s facility, place of manufacture or other
mutually agreed upon point of shipment, any necessary repaired or
replacement parts; provided, however, that prior to repairing any
defective or damaged part or Product, Seller shall have received, at
Customer’s cost, such part or Product in need of repair or
replacement.

TM

SG Series UPS 12 Months

TM

SG Series and LP

If reperformance is not practicable, Seller will furnish without charge
services in an amount essentially equal to those that, in the sole

udgment of Seller, would have been required for reperformance.
Where a failure cannot be corrected by Seller’s reasonable efforts,
the parties will negotiate an equitable adjustment in price.
In providing a replacement Product or parts, Seller reserves the right
to use refurbished circuit boards, which shall be warranted in
accordance with this Warranty Provision.
The correction of any failure or the supply of repaired or replacement
parts or Products pursuant to this Warranty Provision shall not
extend the duration of the applicable Warranty Period.
Seller does not warrant the following items: (i) computer hardware, (ii)
any computer software, including software provided by Seller with
any Product, (iii) products or services obtained from others or (iv) any
batteries used in conjunction with the products, including those
provided by Seller, and in regard to these items, only the warranty of
the manufacturer, if any, shall apply.
Seller's obligation under this Provision entitled “Warranty” shall
terminate immediately upon any modification of the Product by
Customer unless made with the approval of Seller.

The Warranty Period applicable to each Product can be

extended, if Customer purchases an extended warranty from Seller.
If Customer purchases an extended warranty from Seller, the terms
of such extended warranty shall supersede these warranty
provisions.

THE PRECEDING PARAGRAPHS OF THIS WARRANTY
PROVISION SET FORTH THE EXCLUSIVE CLAIMS (EXCEPT AS TO
TITLE) BASED ON DEFECT IN OR FAILURE OF A PRODUCT,
WHETHER THE CLAIM IS IN CONTRACT, INDEMNITY,
WARRANTY, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY
OR OTHERWISE.

Upon the expiration of the applicable Warranty Period, all such
liability shall terminate and Customer shall have a reasonable time,
not to exceed thirty (30) days after the applicable Warranty Period, to
give written notice of any defects that appeared during the Warranty
Period.

THE FOREGOING WARRANTIES ARE EXCLUSIVE AND IN AND IN
LIEU OF ALL OTHER WARRANTIES, WHETHER WRITTEN, ORAL,
IMPLIED OR STATUTORY.
NO IMPLIED STATUTORY WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE SHALL APPLY.

INSTALLATION AND COMMISSIONING OF INSTALLABLE SYSTEMS: If
the Products cannot be installed immediately after delivery,
Customer is responsible for maintaining proper storage conditions
according to operating manuals and any other instructions provided
by Seller.

Installable Products may only be installed by certified electrical

installers and must be installed according to Seller’s specifications,
appropriate national electrical codes and accepted standards of
workmanship.
For purposes of these GE Terms and Conditions, “Installable
Products” shall mean Products that require the services of a certified
electrical installer to be connected to the power grid.

The commissioning of installable Products may only be done by
a technician authorized by Seller and must be done according to
Seller’s specifications.
For purposes of these GE Terms and Conditions, “commissioning”
shall mean the start-up of the installable Products and the testing of
the installable Products in connection with the load.
If commissioning is to be performed by Seller, Seller may refuse to
commission the installable Products, if the operating conditions at
Customer’s site do not allow safe commissioning and operation of
the installable Products.
Any costs resulting from a delay in commissioning will be charged to
Customer.

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