GE LP11U User Manual

GE Industrial Systems

INSTALLATION / USER MANUAL

Digital Energy™ LP 11U

Uninterruptible Power Supply

5-6-8-10 kVA

GE Digital Energy

General Electric Company Telephone +41 (0)91 / 850 51 51 CH - 6595 Riazzino (Locarno) Fax +41 (0)91 / 850 51 44 Switzerland Website www.gedigitalenergy.com

LP 11U UPS

Technology for the Digital World.

ver 3.0 - US

OPERATING MANUAL Digital Energy LP 5/6/8/10-11U UPS LX-DOC File: OPM_LPU_11U_5K0_10K_1US_V030 Manual version 3.0 Software version R2.11

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INSTALLATION / USER MANUAL

Digital Energy™ LP 11U

Uninterruptible Power Supply

5-6-8-10 kVA

Preface

We thank you for selecting a General Electric Digital Energy™ LP Series Uninterruptible Power Supply (UPS) and recommend that you read these instructions carefully before installation and start-up of the UPS.

Please keep this manual in a safe place for future reference and carefully read the important safety instructions in chapter 1 before installation of this device.

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, no liability can be accepted for any error or omission.

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CONTENTS

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1 IMPORTANT SAFETY INSTRUCTIONS..................................... 4

1.1 Save these instructions

1.2 General

1.3 Installation

1.4 Storage

1.5 Batteries

2 INTRODUCTION ......................................................................... 6

2.1 Description

2.2 Warranty

3 FUNCTIONAL EXPLANATION.................................................... 7

3.1 Principles of Operation

3.2 Normal Conditions

3.3 Utility Failure

3.4 Automatic Bypass Switch

3.5 Manual Bypass Switch

4 INSTALLATION............................................................................ 9

4.1 Transport

4.2 Unpacking

4.3 Package Contents

4.4 Location

4.5 Installation

4.5.1 Installation Procedures

4.5.1.1 Standard installation procedure: Vin 208-240Vac, Vout 120/208/220/230/240Vac

4.5.1.2 Installation procedure: Vin 120Vac (optional 5/6kVA), Vout 120/208/220/230/240Vac

4.5.2 Available input voltages: hardware modifications

4.5.2.1 Input voltage 208 or 240Vac

4.5.2.2 Input voltage 120Vac (optional, 5/6kVA only)

4.5.3 Available output voltages: hardware modifications

4.5.3.1 Output voltage 208Vac

4.5.3.2 Output volatge 120Vac split-phase

4.5.3.3 Output voltage 220/230/240Vac

4.5.3.4 Output voltage 120Vac single phase

4.5.4 Input / output voltages: Software modification

4.5.5 Installation of DE LP battery extension pack(s)

4.5.6 LP-11U series: 2 / 3 / 4 parallel operating units - additional info

4.5.6.1 Notes concerning installation of a parallel system

4.5.6.2 Notes concerning starting up the parallel system

4.5.6.3 Notes concerning use / maintenance of a parallel system

5 OPERATION .............................................................................. 22

5.1 Description of Front and Rear Panel

5.2 Start-up

5.3 Use

5.3.1 Information menu

5.3.2 Status and alarm menu

5.3.3 Service menu

5.3.4 Set-up menu

5.4 Test Screens

5.4.1 Battery test, general

5.4.2 Quick battery test

5.4.3 Deep battery test

5.5 Other Features

5.5.1 Shutdown

5.5.2 Utility start

5.5.3 Sleep and wake-up

5.5.4 Overload protection in bypass mode

5.5.5 ECO-Mode 5 5.6 Auto restart

5.5.7 Superior battery management

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6 INTERFACING FEATURES ...................................................... 35

6.1 RS232/Contact Interface

6.2 Emergency Shutdown

6.3 Relay Card (optional)

6.4 SNMP Interface (optional)

7 OPTIONAL FEATURES............................................................. 36

7.1 Extended Runtime

7.2 Plug-in Cards

7.3 RPA-Facility (Redundant Parallel Architecture)

7.4 PDM: Power Distribution Module

7.5 Seismic Anchors

8 MAINTENANCE ......................................................................... 38

8.1 General

8.2 Cooling fan

8.3 Batteries

8.4 Safety

8.5 Storage

8.6 Recycling the UPS at the end of service life

9 TROUBLESHOOTING ............................................................... 39

10 SPECIFICATIONS ..................................................................... 40

APPENDIX: INSTALLATION DRAWINGS

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1 - Important Safety Instructions

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1.1 Save these instructions

This manual contains important instructions that should be followed during installation and

maintenance of the UPS and batteries. It also gives all necessary information about the correct use of the UPS.

Full understanding and compliance of the safety instructions and warnings contained in this manual are

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

GE refuses any responsibility in case of non-observance, unauthorized alterations or improper use of

the delivered UPS.

Before attempting to install and start up the UPS, carefully read this manual. Keep this manual next to the UPS for future references. All servicing must be done by qualified personnel. Do not attempt to service the UPS unless you have had proper training.

CAUTION: By opening or removing covers you run the risk of exposure to dangerous voltages!

While every care has been taken to ensure the completeness and accuracy of this manual, GE accepts no responsibility or liability for any loss or damage resulting from the use of the information contained in this document. This document shall not be copied nor reproduced without the permission of GE. Due to technical improvements, some of the information contained in this manual may be changed without notice.

1.2 General

• CAUTION: RISK OF ELECTRIC SHOCK Do not remove the cover, there are no user serviceable

parts inside. All maintenance and service work should be performed by qualified service personnel.

• The UPS contains batteries. The output terminals may be electrically live, even when the UPS is

disconnected from the utility supply. Dangerous voltages may be present during battery operation. The batteries must be disconnected during maintenance or service work.

• The UPS contains potentially hazardous voltages.

1.3 Installation

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

• To lift the UPS, use a forklift or lifting belts with spreader bars.

• Check for sufficient floor and elevator loading capacity.

• Check carefully the integrity of the UPS equipment. In case you note some visible damage, do not

connect any voltage to the UPS but contact the nearest Service Centre.

• This UPS is intended to be used in a controlled indoor environment and free of conductive

contaminants and protected against animal intrusion.

• The UPS should only be powered from a single phase, three wire AC source equipped with an earth

connection.

• In this manual "Earth" is represented with two different symbols:

= Field wiring equipment grounding terminal,

= Grounding terminals.

• Do not install the UPS in an excessively humid environment or near water.

• Avoid spilling liquids or dropping any foreign object into the UPS.

• The unit must be placed in a sufficiently ventilated area; the ambient temperature should not exceed

40°C (104°F). Optimal battery lifetime is obtained if the ambient temperature does not exceed 30°C (86°F).

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• It is important that the unit has adequate ventilation. Maintain air movement around and through the

unit. Do not block the air vents.

• Avoid placing the unit in direct sunlight or near heat sources.

• Do not plug household appliances such as electric heaters, toasters or vacuum cleaners into the UPS.

The UPS output is intended to be used only for electronic loads such as computers and telecommunications equipment.

• Use insulated copper input and output wiring, rated 90°C (194°F) wire size based on the ampacities

given in Tables 310-16 of the Nation Electrical code, ANSI/NFPA 70-1993. Specified in table 2 and table 3.

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1.4 Storage

• Store the UPS with its batteries fully charged in a dry location, storage temperature must be within -20 and +45°C (-4°F and 113°F)

• If the unit is stored for an extended period of time, the batteries must be recharged periodically.

Connect the unit to the mains and switch it on:

- if the storage temperature is within -20 and +30°C (-4°F and 86°F), recharge the batteries every 6

months, for 24 hours,

- if the storage temperature is within -20 and +45°C (-4°F and 113°F), recharge the batteries every 4

months, for 24 hours.

1.5 Batteries

• NOTE: Servicing of batteries should be performed or supervised by personnel knowledgeable of

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

• When replacing the batteries, use only the same type and size battery.

Preferably for LP 5/6-11U: Kobe HV7-12 or Panasonic LC-R127R2P LP 8/10-11U: Kobe HV12-12 or Panasonic LC-RA1212P

• CAUTION: A battery can present a risk of electrical shock and high short circuit current. The following

precautions should be observed when working on batteries:

- Remove watches, rings or other metal objects.

- Use tools with insulated handles.

- Wear rubber gloves and boots.

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

- Disconnect charging source prior to connecting or disconnect battery terminals.

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

• Avoid charging in a sealed container.

• CAUTION: Never dispose of batteries in a fire: they may explode.

• CAUTION: Do not open or mutilate batteries: their contents may be extremely toxic. If exposed to

electrolyte, wash immediately with plenty of water.

• Proper disposal or recycling of the batteries is required. Refer to your local codes for disposal

requirements.

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2 - Introduction

2.1 Description

More than ever before, today's advanced electronic equipment, with complex integrated circuits and other sensitive electronics, needs a stable and continuous AC power supply to operate correctly. While the power coming from the wall outlet is often unreliable, a GE Digital Energy™ LP-U UPS provides the security of completely uninterrupted power.

A compact, truly on-line system, the LP-U UPS protects your equipment from all forms of power interference, including complete power failure. A simple and elegant circuit design, together with extensive protection against abnormal operating conditions (e.g. overload, short circuit, overheating), makes the UPS exceptionally reliable.

The UPS offers complete galvanic isolation of input and output, also when operating in bypass mode. As a result, input and output voltages do not necessarily have to be equal, making the UPS suitable for almost every situation.

All units are standard equipped with a backfeed protection relay.

Figure 1: The GE Digital Energy™ LP 11U UPS

2.2 Warranty

GE Digital Energy, operating through its authorized agents, warrants that the standard products will be free of defects in materials and workmanship for a period of 24 months (12 months for the battery) after the date of invoice, or such other period as may be specified.

NOTE: This warranty does not cover failures of the product which result from incorrect installation, misuse, alterations by persons other than authorized agents, or abnormal operating conditions.

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3.1 The Principles of Operation

3 - Functional Explanation

The UPS stores electric energy in batteries. This allows the UPS to supply output power even when the incoming utility power is cut off completely. Energy is stored as Direct Current (DC), while input and output energy must be Alternating Current (AC). Therefore the UPS contains an input converter (AC to DC) and an output converter (DC to AC). (fig.2)

3.2 Normal Conditions

Under normal conditions, energy from the utility is channeled through the input converter, which supplies the output converter and the battery charger. The batteries are kept in a fully charged state, and the output converter synthesizes a completely new AC output sine wave to supply the load (electrical equipment).

INPUT: MAINS POWER WITH DISTURBANCES

OUTPUT: PERFECT UPS POWER

UTILITY INPUT

RFI

FILTER

BACKFEED

PROT.

OPTIONAL

BATTERY

EXTENSION

BYPASS

FILTER

P.F. = 1

CONVERTER/

RECTIFIER/

BATTERY

CHARGER

STATIC BYPASS

OUTPUT

CONVERTER

BATTERY

MICROPROCESSOR CONTROL

SYSTEM ON/OFF

MANUAL BYPASS

SWITCH

OUTPUT

TRANSFORMER

FRONT PANEL

RFI

FILTER

TO LOAD

SLOTS FOR:

RPA CARD

SNMP CARD

RELAY CARD

STANDARD

INSTALLED:

CONTACT

INTERFACE

OPTION

RS232/

Figure 2. Block diagram of the LP 11U UPS, utility present

3.3 Utility Failure

In the event of a utility power failure (i.e. absent or outside tolerance) the system uses the energy reserve stored in the battery to continue to produce AC power, ensuring unbroken output (fig. 3). No interruption or alteration will ever be noticed in the output power. In the event of an extended utility failure, the output converter will stop when the battery has been discharged. At this point, the UPS is no longer able to power the connected equipment. When the utility is re-established within tolerance, the output converter will be supplied again by the input converter and the batteries will be recharged, making them ready to support future power failures.

NO INPUT: UTILITY FAILURE

OUTPUT: PERFECT UPS POWER

BYPASS

FILTER

STATIC

BYPASS

RFI

FILTER

BACKFEED

PROT.

OPTIONAL

P.F. = 1

CONVERTER/

RECTIFIER/

BATTERY

CHARGER

OUTPUT

CONVERTER

BATTERY

EXTENSION

BATTERY

MICROPROCESSOR CONTROL

SYSTEM ON/OFF

MANUAL BYPASS

SWITCH

OUTPUT

TRANSFORMER

FRONT

PANEL

RFI

FILTER

TO LOAD

SLOTS FOR:

RPA CARD

SNMP CARD

RELAY CARD

STANDARD INSTALLED:

CONTACT

INTERFACE

OPTION

RS232/

Figure 3. Block diagram of the LP 11U UPS, utility failure

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3.4 Automatic Bypass Switch

If the output converter is unable to deliver the demanded output power because of overload or overtemperature, the automatic bypass switch will automatically transfer the load to the utility. When the situation is corrected the UPS will switch back to normal operation, i.e. the load is tranferred back to the output converter. Though the automatic bypass switch is shown as a simple mechanical switch in figures 2-5, the transfers are done by means of thyristors, i.e. electronically, without any interruption of the power supplied to the load. In case of a severe overload or short-circuit the magnetic bypass circuit breaker (rear panel) may trip in order to protect the UPS. If the current is insufficiently high to trip the breaker, the UPS will be switched off by the software in order to protect the UPS and connected equipment.’

UTILITY INPUT

RFI

FILTER

BACKFEED

PROT.

OPTIONAL

BATTERY

EXTENSION

BYPASS

FILTER

P.F. = 1

CONVERTER/

RECTIFIER/

BATTERY

CHARGER

BATTERY

MICROPROCESSOR CONTROL

STATIC

BYPASS

OUTPUT

CONVERTER

Figure 4 . Bypass operation: Automatic bypass

SYSTEM ON/OFF

MANUAL BYPASS

SWITCH

OUTPUT

TRANSFORMER

FRONT PANEL

RFI

FILTER

TO LOAD

SLOTS FOR:

RPA CARD

SNMP CARD

RELAY CARD

STANDARD

INSTALLED:

CONTACT

INTERFACE

OPTION

RS232/

If a power failure occurs during bypass operation, load power may be lost. If the UPS functions under overload conditions it may not be able to protect the load.

3.5 Manual Bypass Switch (Service switch)

The system can be bypassed manually using the manual bypass switch located at the rear panel. It is a twoposition switch: the normal position is '1': as in figures 2-4. Position '2' is the service position: the load is directly connected to the utility input. This way maintenance of the UPS (e.g. battery replacement, as in fig. 5) is possible without interruption of the power supplied to the load.

CAUTION: REFER SERVICE TO QUALIFIED PERSONNEL ONLY.

THE RFI FILTERS AND OUTPUT TRANSFORMER ARE ALWAYS ACTIVE.

UTILITY INPUT

RFI

FILTER

BACKFEED

PROT.

OPTIONAL

BYPASS FILTER

P.F. = 1

CONVERTER/

RECTIFIER/

BATTERY CHARGER

STATIC BYPASS

OUTPUT

CONVERTER

BATTERY

EXTENSION

MICROPROCESSOR CONTROL

SYSTEM ON/OFF

MANUAL BYPASS

SWITCH

OUTPUT

TRANSFORMER

FRONT PANEL

RFI

FILTER

TO LOAD

SLOTS FOR:

RPA CARD

SNMP CARD

RELAY CARD

STANDARD

INSTALLED:

CONTACT

INTERFACE

OPTION

RS232/

Figure 5 . Bypass operation: Manual bypass

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4 - Installation

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4.1 Transport

NOTE: Transport the UPS only in upright position. Check for sufficient floor and elevation loading

capacity. Move the UPS in its original package to the final destination room. Do not stack other package on top.

4.2 Unpacking

Cut the two wrapping bands, and remove the shipping box. Loosen the four bolts with which the UPS is fixed to the pallet. Remove the UPS from the pallet.

BE CAREFUL! Pay attention to the HEAVY WEIGHT of the UPS when downloading the UPS

from the pallet! Never try to lift the unit by yourself!

The UPS is equipped with castors, which allow easy displacement of the unit. Please take appropriate measures to avoid damage on vulnerable floors.

4.3 Package Contents

The shipping box contains a LP-U UPS, a CD-ROM, an RS232 cable, a link (5/6kVA models only, see 4.5.3) a safety guide and this manual. If the UPS is equipped with an RPA plug-in card (Redundant Parallel Architecture, right option slot at the rear of the unit) the shipping box also contains a yellow network cable and one bus terminator. Inspect the UPS for damage after unpacking. If any damage is present please notify the carrier and place of purchase immediately.

4.4 Location

Please refer to section 1.3 of ‘IMPORTANT SAFETY INSTRUCTIONS’.

4.5 Installation

IMPORTANT

Before making any connection and switching on the LP UPS, please check the following conditions:

• The voltage and frequency of your utility supply is 120/208/230/240 Vac and 50 or 60 Hz; from the

factory the input and output of the UPS are set to 208 Vac / 60 Hz.

• Be sure that the UPS is wired for the present utility voltage. This is indicated on the packaging of the

UPS, as well as at the I/O terminals.

• Overcurrent protection for the AC circuit is to be provided by others.

• CAUTION: To reduce risk of fire, connect only to a circuit input/output provided with

UPS model

Operating input voltage

LP 5-11U 35 30 40 20 25 20 LP 5-11U /120V 60 40 20 25 20 LP 6-11U 40 35 50 25 30 25 LP 6-11U /120V 70 50 25 30 25 LP 8-11U 60 45 70 35 40 35 LP 10-11U 70 60 80 40 50 40

Table 1. external input fuse value

branch circuit overcurrent protection in accordance with the National Electrical Code, ANSI / NFPA 70, as indicated below:

Input overcurrent protection

(Amps)

120V 208V 240V 120V

Output overcurrent protection

(Max. Amps)

(1 X)

120V

(2X)

208V 240V

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• Ensure that the total power requirement of the equipment to be protected does not exceed the rated

output power of the UPS. (output power for your unit is indicated on the rating label on the rear panel).

• When using the 120V split phase outputs make sure that the load per 120V output does not exceed half

the rating.

• The UPS may only be installed by trained personnel. The UPS must be grounded when in use: Connect

the UPS to a single phase, three wire AC source equipped with an earth connection.

• Use insulated copper input and output wiring, rated 90°C derated to 40°C, wire size based on the

ampacities given in Tables 310-16 of the National Electrical code, ANSI/NFPA 70-1993.

This wiring shall have the following minimum sizes:

INPUT WIRING:

Utility voltage UPS model 120V 208V 240V

LP 5-11U 6 AWG 10 AWG 10 AWG LP 6-11U 4 AWG 8 AWG 10 AWG LP 8-11U N/A 6 AWG 8 AWG LP 10-11U N/A 4 AWG 6 AWG

Table 2. Input wiring

OUTPUT WIRING:

Output voltage UPS model 120V 208V 240V

LP 5-11U 8 AWG 10 AWG 10 AWG LP 6-11U 8 AWG 10 AWG 10 AWG LP 8-11U 6 AWG 8 AWG 8 AWG LP 10-11U 4 AWG 8 AWG 8 AWG

Table 3. Output wiring

TIGHTENING TORQUE FORCE:

UPS model Tightening torque force

LP 5/6-11U/120V 22 Lbs/inch All other models 18-20 Lbs/inch

Table 4. Tightening torque force

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4.5.1 Installation Procedures

4.5.1.1 Standard installation procedure: input voltage 208-240Vac, output voltage 120/208/220/230/240Vac.

If a battery extension pack is to be installed, please proceed with section 4.5.5. If 2, 3 or 4 parallel operating units will be installed, please proceed with section 4.5.6. The numbers between (brackets) refer to figure 19 in section 5.1.

1. Mount the levellers: position A to fix the UPS to the floor, position B to lift the castors from the floor.

2. Loosen the screws and remove the conduit box (17) and the metal cover plate (11).

3. Make sure that all circuit breakers (7-8-9) are in ‘off’ position (down).

4. Input/output connection:

Lead the input/output cables through the cable inlet. If

the cables come from below (recommended for 8kVA and 10kVA models), you can rotate the cable inlet 90 degrees. Connect the input/output wires to the I/O terminals (11a and 11b). Please refer to section 4.5.2

OFF

1 (input) and 4.5.3 (output) for detailed information.

5. Re-install the metal cover plate (11) and the conduit box (17).

6. An emergency shutdown switch can be connected to connector J3 on the RS232/Contact Interface Card, between pins 3 and 4. See section 6.2 for more information.

7. For advanced communication possibilities, the RS232/contact interface port (12a) can be connected to a computer system. See section 6.1 for more information.

8. The middle ‘option slot’ (13) allows easy installation of plug-in cards: SNMP Card or Relay Card. See

sections 6.3 and 6.4 for more information.

9. The right ‘option slot’ (14) allows easy installation of the RPA-card (Redundant Parallel Architecture). If the card is already mounted, and if the unit is intended to be used stand-alone, a bus terminator (delivered with the unit) has to be placed in one of the two bus connectors on the card. If the unit will be part of a parallel system, see sections 4.5.6 and 7.3 for more information.

10. Connect the utility power to the UPS.

6 7

see 6.3-4

BATTERY DISCONNECTED

EMERGENCY SHUTDOWN

stand-alone and RPA card available

11. If hardware modifications were necessary in step 4 because the I/O voltages are different from the default

8 9

see 4.5.6 / 7.3

(208Vac), software modifications should be performed as well. Proceed with 4.5.4.

Figure 6. LP 5/68/10-11U:

Standard installation procedure

12. For a quick start proceed with section 5.2 ‘Start-up’.

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4.5.1.2 Installation procedure: input voltage 120Vac (optional, 5-6kVA only), output voltage 120/208/220/230/240Vac.

1. Mount the levellers: position A to fix the UPS to the floor, position B to lift the castors from the floor. Please refer to figure 6, step 1.

2. Loosen the screws and remove the conduit boxes (17, 2x) and the cover plate (11).

3. Make sure that all circuit breakers (7-8-9) are in ‘off’ position (down). Please refer to fig. 6, step 3.

4. Input/output connection:

Lead the input/output cables through the cable inlet. If

the cables come from below (recommended for 8kVA and 10kVA models), you can rotate the cable inlet 90 degrees. Connect the input wires to the input terminals (11b). Connect the output wires to the output terminals (11a). Please refer to section 4.5.2.2 (input) and 4.5.3 (output) for detailed information.

5. Re-install the cover plate (11) and the conduit boxes

(17, 2x).

6. An emergency shutdown switch can be connected to connector J3 on the RS232/Contact Interface Card, between pins 3 and 4. See section 6.2 for more information.

7. For advanced communication possibilities, the RS232/contact interface port (12a) can be connected to a computer system. See section 6.1 for more information.

8. The middle ‘option slot’ (13) allows easy installation of plug-in cards: SNMP Card or Relay Card. See sections 6.3 and 6.4 for more information.

9. The right ‘option slot’ (14) allows easy installation of

BATTERY DISCONNECTED

EMERGENCY SHUTDOWN

the RPA-card (Redundant Parallel Architecture). If the card is already mounted, and if the unit is intended to be used stand-alone, a bus terminator (delivered with

6 7

see 6.3-4

stand-alone and RPA card available

the unit) has to be placed in one of the two bus connectors on the card. If the unit will be part of a parallel system, see sections 4.5.6 and 7.3 for more information.

10. Connect the utility power to the UPS.

8 9

see 4.5.6 / 7.3

11. If hardware modifications were necessary in step 4 because the output voltage is different from the default (208Vac), software modifications should be performed as well. Proceed with 4.5.4.

Figure 7. LP 5/6

Installation procedure 120V input

11U:

12. For a quick start proceed with section 5.2 ‘Start-up’.

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(

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4.5.2 Available input voltages: hardware modifications

The following input voltages are possible: 208, 240 Vac (see 4.5.2.1) and 120 Vac (see 4.5.2.2)

4.5.2.1 Input voltage 208 or 240Vac.

1. Input voltage is 208 Vac. This is the factory setting. Proceed with step 3.

2. Input voltage is 240Vac. In this case the bypass tap on the output transformer must be changed. Please refer to fig. 8 and 8a. Proceed as follows:

2.1 Remove the yellow wire B from faston 74 (connect) and place this wire on faston 72 (park).

2.2 Remove the blue wire A from faston 61 (park) and place this wire on faston 74 (connect).

Bypass tap factory setting: 208 Volt

ark

connect

Bypass tap changed to 240 Volt

ark

connect

Figure 8. LP 5/6/8/10-11U:

Bypass tap change

3. Connect the utility supply wires to terminals 6 (L1), 7 (L2) and 8 (equipment grounding conductor). See figure 9. Ground connection is essential!

If a neutral wire is part of the site wiring provided, we suggest to isolate this wire for future use or other

applications.

Figure 9. LP 5/6/8/10

11U:

Output (grey) / input terminals

4. For the output voltage proceed with 4.5.3.

Figure 8a. LP 5/6/8/10-11U:

Rear view

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