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Liebert 7400 Series User Manual

Liebert 7400 Series User Manual

Single module and 1+1 configuration
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1+1 Configuration
MEASUREMENTS
ALARM
INVERTER
Vo
Io
f
B
(( ))
INVERTER
MEASUREMENTS
ALARM
EMERGENCY
Vo
Io
OFF
f
B
(( ))
ON
Manual Reference: 6310018A - 2
7400 Series UPS
Single Module
and
EMERGENCY
OFF
ON

User Manual

MEASUREMENTS
ALARM
INVERTER
EMERGENCY
Vo
Io
OFF
f
B
(( ))
ON
MEASUREMENTS
ALARM
INVERTER
EMERGENCY
Vo
Io
OFF
f
B
(( ))
ON
(02/98) LCA 10/01

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Summary of Contents for Liebert 7400 Series

  • Page 1: User Manual

    7400 Series UPS Single Module 1+1 Configuration MEASUREMENTS ALARM INVERTER EMERGENCY (( )) MEASUREMENTS ALARM INVERTER EMERGENCY (( )) INVERTER MEASUREMENTS ALARM EMERGENCY (( )) MEASUREMENTS ALARM INVERTER EMERGENCY (( )) User Manual Manual Reference: 6310018A - 2 (02/98) LCA 10/01...
  • Page 3 IMPORTANT This manual contains information concerning the installation, operation and maintenance of the Liebert Series 7400 Uninterruptible Power System (UPS) for the Single Module and One plus One Systems. All relevant parts of the manual should be read prior to commencing installation.
  • Page 4 7400 Series UPS Single and 1+1 IOM Manual 6310018a.02.doc All rights reserved. Prelim ii Issue 2 (02/98)
  • Page 5 7400 Series UPS Single and 1+1 IOM Manual 6310018a.02.doc ELECTRO MAGNETIC COMPATIBILITY WARNING This is a UPS for restricted sales distribution to informed partners with the appropriate EMC technical competence. Installation restrictions or additional measures may be needed to prevent disturbances (EMC Standard 50091-2).
  • Page 6 7400 Series UPS Single and 1+1 IOM Manual 6310018a.02.doc This manual describes the following equipment: EQUIPMENT PART NUMBER 80 kVA UPS Module 5410270 I 120 kVA UPS Module 5410272 K 200 kVA UPS Module 5410276 O 300 kVA UPS Module...

  • Page 7: Safety Precautions

    7400 Series UPS Single and 1+1 IOM Manual 6310018a.02.doc Safety Precautions WARNING THIS UPS DOES NOT INCORPORATE AUTOMATIC BACKFEED PROTECTION. A WARNING LABEL MUST BE FITTED TO ALL EXTERNAL PRIMARY POWER ISOLATORS STATING: ISOLATE THE UNINTERRUPTIBLE POWER SYSTEM BEFORE WORKING ON THIS CIRCUIT.

  • Page 8: Table Of Contents

    7400 Series UPS Single and 1+1 IOM Manual 6310018a.02.doc Table of Contents 1. Chapter 1 - General Description ..........................1-1 1.1 Introduction ................................1-1 1.2 Design Concept ..............................1-1 1.2.1 Module Design ..............................1-1 1.2.2 Bypass supplies .............................1-5 1.2.3 UPS Power Switch Configuration ......................1-5 1.2.4 Battery circuit breaker ...........................1-6...
  • Page 9 7400 Series UPS Single and 1+1 IOM Manual 6310018a.02.doc 4.4.1 Connections ..............................4-8 4.5 Remote Alarm and Control Panel (Part No. 4305002 A) ...................4-10 4.5.1 Introduction ..............................4-10 4.5.2 Connections ..............................4-11 4.6 RS 232 Communications Management Board (SGC) (4550002C) ..............4-15 4.6.1 Introduction ..............................4-15 4.6.2 General Information ............................4-16...

  • Page 11: Chapter 1 - General Description

    Chapter 1 - General Description Introduction The 7400 Series uninterruptible power supply (UPS) system is connected between a critical load, such as a computer, and its three phase mains power supply. Being designed to furnish a well regulated 3 phase output...
  • Page 12 Chapter 1- General Description 7400 Series UPS User Manual Design Concept Single Module and One plus One Systems Figure 1-1. Series 7400 UPS Single Module block diagram Bypass Supply STATIC INVERTER RECTIFIER SWITCH Mains Output Supply Supply BATTERY Issue 2...
  • Page 13 7400 Series UPS User Manual Chapter 1 - General Description Single Module and One plus One Systems Introduction 12 Pulse Rectifier The UPS basically operates as an a.c.-d.c.-a.c. converter (see figure 1-1). The first conversion stage (from a.c. to d.c.) uses a 3 phase 12 pulse (2 x 6 pulse), fully-controlled SCR bridge rectifier system to convert the incoming mains supply into a regulated d.c.
  • Page 14 Chapter 1- General Description 7400 Series UPS User Manual Design Concept Single Module and One plus One Systems 6310018a.02.doc mains supply fails. Once such a generator has been brought on-line, and the UPS input power has been re-established, the batteries...

  • Page 15: Bypass Supplies

    The power switch locations in the various 7400 models are shown in Configuration Figure 1-4.Figure 1-3 illustrates the 7400 series UPS module power switches in what is known as a “Split Bypass” configuration. This is the standard configuration for all models in the 7400 range.

  • Page 16: Battery Circuit Breaker

    Chapter 1- General Description 7400 Series UPS User Manual Design Concept Single Module and One plus One Systems 6310018a.02.doc Maintenance Bypass Isolator Bypass Bypass Isolator Supply Output Supply STATIC RECTIFIER INVERTER SWITCH Mains Input Output Supply Isolator Isolator Battery Circuit...
  • Page 17 7400 Series UPS User Manual Chapter 1 - General Description Single Module and One plus One Systems Design Concept 6310018a.02.doc 120 kVA 200 kVA I1 = Input Isolator I2 = Static Bypass Isolator I3 = Maintenance Bypass Isolator (with padlock)

  • Page 18: One Plus One System

    Single Module and One plus One Systems 6310018a.02.doc One Plus One System The one-plus-one system comprises two standard 7400 series UPS modules which are modified to allow their outputs to be connected in parallel. These can then be used in a "redundant" or "non-redundant"...
  • Page 19 7400 Series UPS User Manual Chapter 1 - General Description Single Module and One plus One Systems One Plus One System 6310018a.02.doc Redundancy configuration: A link in the parallel control logic determines whether the one-plus-one system operates in a "redundant" or "non-redundant" configuration.

  • Page 20: Common Battery

    Chapter 1- General Description 7400 Series UPS User Manual One plus One System Single Module and One plus One Systems 6310018a.02.doc STATIC Mains RECTIFIER INVERTER SWITCH Supply 1+1 Parallel Control BATTERY BATTERY Output Supply 1+1 Parallel Control STATIC Mains RECTIFIER...

  • Page 21: Ups Output

    7400 Series UPS User Manual Chapter 1 - General Description Single Module and One plus One Systems One Plus One System 6310018a.02.doc STATIC RECTIFIER INVERTER SWITCH Main Supply 1+1 Parallel Control Control Logic BATTERY Output Supply 1+1 Parallel Control Main...

  • Page 22: Operator Control Panel

    Chapter 1- General Description 7400 Series UPS User Manual Operator Control Panel Single Module and One plus One Systems 6310018a.02.doc Operator Control Panel The operator control panel is divided into three functional areas; ‘mimic indications’, ‘control switches’, and ‘LCD display panel’.

  • Page 23: Control Switches

    7400 Series UPS User Manual Chapter 1 - General Description Single Module and One plus One Systems Operator Control Panel 6310018a.02.doc 1.4.2 Control switches Seven tactile switches are located on the Operator Panel, together with an emergency stop pushbutton which is fitted with a safety cover to prevent inadvertent operation.
  • Page 24 Chapter 1- General Description 7400 Series UPS User Manual Operator Control Panel Single Module and One plus One Systems 6310018a.02.doc LS8 - Inverter status: This green led situated near the inverter ON switch illuminates when the inverter is selected ON.

  • Page 25: Lcd Display

    7400 Series UPS User Manual Chapter 1 - General Description Single Module and One plus One Systems Operator Control Panel 6310018a.02.doc 1.4.3 LCD Display An LCD display, capable of EMERGENCY STOP *** ALARM *** showing two rows of 40 characters, is used to indicate...

  • Page 27: Chapter 2 - Operating Instructions

    It can be cancelled at any time by pressing the `Alarm Reset' pushbutton. Note 3: The 7400 series UPS incorporates an optional automatic boost charge facility which can be used in systems containing non-sealed lead- acid batteries. If this type of battery is used in your installation you may notice that the battery charger voltage will be greater than its normal value when the mains supply returns from a prolonged outage.
  • Page 28 When the first module is stopped its static bypass is inhibited because the load will be fully maintained by the inverter of the second module.

  • Page 29: Non-Redundant Module System

    Chapter 2 - Operating Instructions 7400 Series UPS User Manual One plus One Single Module and One plus One Systems 6310018a.02.doc When shutting down the second module, the static bypass lines of both modules will be turned on as soon as its inverter is stopped. That is, both modules will provide load power through their paralleled bypass lines.
  • Page 30 Chapter 2 - Operating Instructions 7400 Series UPS User Manual One plus One Single Module and One plus One Systems 6310018a.02.doc How to turn on the system from a maintenance power-down condition This procedure should be followed to start the UPS from a MAINTENANCE power-down condition - i.e. where the load is being initially powered through the internal maintenance bypass supply.

  • Page 31: Maintenance Bypass

    7400 Series UPS User Manual Chapter 2 - Operating Instructions Single Module and One plus One Systems One plus One 6310018a.02.doc How to turn off the system but continue to provide load power through the maintenance bypass This procedure should be followed if the UPS is to be powered-down while continuing to supply the load through the maintenance bypass line.
  • Page 32 Chapter 2 - Operating Instructions 7400 Series UPS User Manual One plus One Single Module and One plus One Systems 6310018a.02.doc How to totally power-down the system This procedure should be followed only if the UPS AND LOAD are to be completely powered down.
  • Page 33 7400 Series UPS User Manual Chapter 2 - Operating Instructions Single Module and One plus One Systems One plus One 6310018a.02.doc Issue 2 (02/98)

  • Page 35: Chapter 3 - Installation Procedure

    7400 Series UPS User Manual Chapter 3 - Installation Procedure Single Module and One plus One Systems Introduction 6310018a.02.doc Chapter 3 - Installation Procedure Introduction WARNING Do not apply electrical power to the UPS equipment before the arrival of the commissioning engineer.

  • Page 36: Equipment Positioning And Environmental Considerations

    Chapter 3 - Installation Procedure 7400 Series UPS User Manual Introduction Single Module and One plus One Systems 6310018a.02.doc The UPS cabinets can be moved by fork lift or crane. Fork lift apertures 3.1.1 Equipment positioning are provided in the sides of the base plate and are accessible after and environmental removing blanking covers fitted to the side panel ventilation grills.

  • Page 37: Raised Floor Installation

    UPS using the most direct route possible. Liebert offer a purpose-designed remote battery circuit breaker box, containing the circuit breaker and its necessary control board, as a standard option kit.
  • Page 38 Chapter 3 - Installation Procedure 7400 Series UPS User Manual Introduction Single Module and One plus One Systems 6310018a.02.doc Figure 3-1 . Installation Diagram for 80 kVA Module Issue 2 (02/98)
  • Page 39 7400 Series UPS User Manual Chapter 3 - Installation Procedure Single Module and One plus One Systems Introduction 6310018a.02.doc Figure 3-2 . Installation Diagram for 120 kVA Module Issue 2 (02/98) LCA 10/01...
  • Page 40 Chapter 3 - Installation Procedure 7400 Series UPS User Manual Introduction Single Module and One plus One Systems 6310018a.02.doc Issue 2 (02/98)
  • Page 41 7400 Series UPS User Manual Chapter 3 - Installation Procedure Single Module and One plus One Systems Introduction 6310018a.02.doc Figure 3-3 . Installation Diagram for 200 kVA Module Issue 2 (02/98) LCA 10/01...
  • Page 42 Chapter 3 - Installation Procedure 7400 Series UPS User Manual Introduction Single Module and One plus One Systems 6310018a.02.doc Figure 3-4 . Installation Diagram for 300/400 kVA Module 6 & 12 Issue 2 (02/98)
  • Page 43 7400 Series UPS User Manual Chapter 3 - Installation Procedure Single Module and One plus One Systems Introduction 6310018a.02.doc Figure 3-5 . Inst. Diagram for 80 kVA Modules 12 Pulse Issue 2 (02/98) LCA 10/01...
  • Page 44 Chapter 3 - Installation Procedure 7400 Series UPS User Manual Introduction Single Module and One plus One Systems 6310018a.02.doc Figure 3-6 . Installation Diagram for 120 kVA Module 12 Pulse 3-10 Issue 2 (02/98)
  • Page 45 7400 Series UPS User Manual Chapter 3 - Installation Procedure Single Module and One plus One Systems Introduction 6310018a.02.doc 3-11 Issue 2 (02/98) LCA 10/01...
  • Page 46 Chapter 3 - Installation Procedure 7400 Series UPS User Manual Introduction Single Module and One plus One Systems 6310018a.02.doc Figure 3-7 . Installation Diagram for 200 kVA Module 12 Pulse 3-12 Issue 2 (02/98)

  • Page 47: Preliminary Checks

    7400 Series UPS User Manual Chapter 3 - Installation Procedure Single Module and One plus One Systems Preliminary Checks 6310018a.02.doc Preliminary Checks Before you install the UPS hardware you should carry out the following preliminary checks: 1. Verify that the UPS room satisfies the environmental conditions stipulated in the equipment specification, paying particular attention to the ambient temperature and air exchange system.

  • Page 48: Reassembling The 300Kva And 400Kva Cabinets

    Chapter 3 - Installation Procedure 7400 Series UPS User Manual Reassembling the 300kVA and 400kVA cabinets Single Module and One plus One Systems 6310018a.02.doc Reassembling the 300 kVA and 400 kVA cabinets Place the cabinets in their final position as shown in figure 3-6 ensuring...
  • Page 49 7400 Series UPS User Manual Chapter 3 - Installation Procedure Single Module and One plus One Systems Reassembling the 300kVA and 400kVA cabinets 6310018a.02.doc Figure 3-1 . 300/400 kVA model inter-connection cables 3-15 Issue 2 (02/98) LCA 10/01...

  • Page 50: Connecting The Ups Power Cables

    Chapter 3 - Installation Procedure 7400 Series UPS User Manual Battery Installation Single Module and One plus One Systems 6310018a.02.doc Connecting the UPS power cables WARNING Before cabling-up the UPS, ensure that you are aware of the location and operation of the external isolators that connect the UPS input/bypass supply to the mains distribution panel.

  • Page 51: Cable Connections

    7400 Series UPS User Manual Chapter 3 - Installation Procedure Single Module and One plus One Systems Connecting the UPS power cables 6310018a.02.doc 3.4.3 Cable connections Power cables are connected either directly to their respective circuit breakers, or to busbars which are themselves connected to the circuit breakers see figures 3-8 to 3-12.

  • Page 52: Cabling Procedure

    Chapter 3 - Installation Procedure 7400 Series UPS User Manual Battery Installation Single Module and One plus One Systems 6310018a.02.doc 3.4.5 Cabling procedure Power Cables Once the equipment has been finally positioned and secured, connect the power cables as described in the following procedure.
  • Page 53 7400 Series UPS User Manual Chapter 3 - Installation Procedure Single Module and One plus One Systems Connecting the UPS power cables 6310018a.02.doc 9. If an external emergency stop facility is to be used then remove the link between terminals 4 and 5 of the auxiliary terminal block and connect the ‘normally closed’...
  • Page 54 Chapter 3 - Installation Procedure 7400 Series UPS User Manual Battery Installation Single Module and One plus One Systems 6310018a.02.doc Figure 3-2 . Cable connections for standard 80kVA 3-20 Issue 2 (02/98)
  • Page 55 7400 Series UPS User Manual Chapter 3 - Installation Procedure Single Module and One plus One Systems Connecting the UPS power cablesù 6310018a.02.doc Figure 3-3 . Cable connections for standard 120kVA 3-21 Issue 2 (02/98) LCA 10/01...
  • Page 56 Chapter 3 - Installation Procedure 7400 Series UPS User Manual Battery Installation Single Module and One plus One Systems 6310018a.02.doc Figure 3-4 . Cable connections for standard 200kVA 3-22 Issue 2 (02/98)
  • Page 57 7400 Series UPS User Manual Chapter 3 - Installation Procedure Single Module and One plus One Systems Connecting the UPS power cablesù 6310018a.02.doc Figure 3-5 . Cable connections for 6 & 12 Pulse 300/400 kVA modules 3-23 Issue 2 (02/98) LCA 10/01...
  • Page 58 UPS using the most direct route possible. Liebert offer a purpose designed remote battery circuit breaker box, containing the circuit breaker and its necessary control board, as a standard option kit.

  • Page 59: Mm Cabinet (250 Amp Circuit Breaker)

    7400 Series UPS User Manual Chapter 3 - Installation Procedure Single Module and One plus One Systems Battery Installation 6310018a.02.doc 3.5.1 860 mm cabinet The 860 mm cabinet with a 250 Amp circuit breaker and extension (250 Amp circuit cabinets are designed for use with the Series 7400 80-120 kVA UPS.
  • Page 60 Chapter 3 - Installation Procedure 7400 Series UPS User Manual Battery Installation Single Module and One plus One Systems 6310018a.02.doc Figure 3-1 . 860mm Battery cabinet Typical battery layout and connection delail 3-26 Issue 2 (02/98)
  • Page 61 7400 Series UPS User Manual Chapter 3 - Installation Procedure Single Module and One plus One Systems Battery Installation 6310018a.02.doc Figure 3-2 . Typical example of battery cabinet with extension cabinet 3-27 Issue 2 (02/98) LCA 10/01...

  • Page 62: Battery Circuit Breaker Boxes

    Chapter 3 - Installation Procedure 7400 Series UPS User Manual Battery Installation Single Module and One plus One Systems 6310018a.02.doc A battery circuit breaker box houses the battery circuit breaker and its controller 3.5.2 Battery circuit breaker board and is used to connect the battery to the UPS in installations where the boxes batteries are not contained in the standard battery cabinet.
  • Page 63 7400 Series UPS User Manual Chapter 3 - Installation Procedure Single Module and One plus One Systems Battery Installation 6310018a.02.doc Usually the ‘box’ is fitted as close as possible to the batteries. Figures 3-15 to 3-17 show details of the power and control cable connections between the circuit breaker box and the UPS itself.

  • Page 64: Battery Circuit Breaker

    Chapter 3 - Installation Procedure 7400 Series UPS User Manual Battery Installation Single Module and One plus One Systems 6310018a.02.doc To Battery BATTERY CIRCUIT BREAKER Battery C.B Controller Bd (4520063P) Figure 3-3 . Battery C/B box connections for 300kVA and 400 kVA Modules...

  • Page 65: Battery Display Initialisation

    7400 Series UPS User Manual Chapter 3 - Installation Procedure Single Module and One plus One Systems Battery Installation 6310018a.02.doc On initial installation or on change of the battery, it is necessary to enter the battery 3.5.3 Battery Display nominal capacity data into the system. This allows the front panel to display the Initialisation battery state either as a percentage of charge with the input a.c.
  • Page 66 Chapter 3 - Installation Procedure 7400 Series UPS User Manual Battery Installation Single Module and One plus One Systems 6310018a.02.doc 3-32 Issue 2 (02/98)

  • Page 67: Chapter 4 - Optional Equipment

    7400 Series UPS User Manual Chapter 4 - Optional equipment Single Module and One plus One Systems AS400 Interface Board (4590041B) 6310018a.02.doc Chapter 4 - Optional equipment Several items of optional equipment are available for fitting to the 7400 series UPS for use by the customer as required.

  • Page 68: As400 Interface Board (4590041B)

    UPS internal low voltage supplies. 4.1.3 Calibration When fitting the AS400 interface board to the 7400 series, ensure that link SH-1 is in position 1-2. Issue 2 (02/98)
  • Page 69 7400 Series UPS User Manual Chapter 4 - Optional equipment Single Module and One plus One Systems AS400 Interface Board (4590041B) 6310018a.02.doc Notes: 1.All relays operate on Event 2. M1 pin numbering starts physically from Bottom.. Pin Numbers are correct.

  • Page 70: 4-Way As400 Interface Board (4590045F)

    M1 as shown in figure 4-2. Once again, the voltage applied to these terminals must be generated by an external power source and not taken from the UPS internal low voltage supplies. When fitting the AS400 interface board to the 7400 series, ensure that 4.2.2 Calibration link SH-1 is in position 1-2.
  • Page 71 7400 Series UPS User Manual Chapter 4 - Optional equipment Single Module and One plus One Systems 4-Way AS400 Interface Board (4590045F) 6310018a.02.doc Figure 4-1 . Four output AS400 interface board Issue 2 (02/98) LCA 10/01...

  • Page 72: Output Interface (Remote Alarms) Boards (4590044E)

    Chapter 4 - Optional equipment 7400 Series UPS User Manual Output Interface (Remote Alarms) Boards (4590044E) Single Module and One plus One Systems 6310018a.02.doc Output Interface (Remote Alarms) Boards (4590044E) 4.3.1 Alarm outputs One remote alarm board, shown in figure 4-3, enables the alarm signals generated within the UPS to be connected by means of volt-free change- over relay contacts to a remote monitoring device.
  • Page 73 7400 Series UPS User Manual Chapter 4 - Optional equipment Single Module and One plus One Systems Output Interface (Remote Alarms) Boards (4590044E and 4590036 W) 6310018a.02.doc Figure 4-1 . Output Interface Board Part N°4590044E Issue 2 (02/98) LCA 10/01...

  • Page 74: Remote Alarm Monitor (Ram) (P/N 4305001Z)

    Chapter 4 - Optional equipment 7400 Series UPS User Manual AS400 Interface Board (4590041 B) Single Module and One plus One Systems 6310018a.02.doc Remote Alarm Monitor (RAM) (P/N 4305001Z) When used in conjunction with one of the alarm interface boards...
  • Page 75 7400 Series UPS User Manual Chapter 4 - Optional equipment Single Module and One plus One Systems Remote Alarm Monitor (RAM) (P/N 4305001Z) 6310018a.02.doc Figure 4-1 . Remote Alarm Monitor connection details for both the single way (on the left) and four way (on the right) Interface boards.

  • Page 76: Remote Alarm And Control Panel (Part No. 4305002 A)

    7400 Series UPS User Manual Chapter 4 - Optional equipment Single Module and One plus One Systems Remote Alarm and Control Panel (Part No. 4305002 A) 6310018a.02.doc Remote Alarm and Control Panel (Part No. 4305002 A) When used in conjunction with the Output Interface Board (4590044E) 4.5.1...

  • Page 77: Connections

    7400 Series UPS User Manual Chapter 4 - Optional equipment Single Module and One plus One Systems Remote Alarm and Control Panel (Part No. 4305002 A) 6310018a.02.doc Panel Indication Priority Ident Colour Normal Interpretation Fig. 4-5 State UPS Module status...
  • Page 78 7400 Series UPS User Manual Chapter 4 - Optional equipment Single Module and One plus One Systems Remote Alarm and Control Panel (Part No. 4305002 A) 6310018a.02.doc Figure 4-1 . UPS System connection and identification of the control and indication of the Remote Alarms and Control Panel...

  • Page 79: Rs 232 Communications Management Board (Sgc) (4550002C)

    7400 Series UPS User Manual Chapter 4 - Optional equipment Single Module and One plus One Systems RS 232 Communications Management Board (SGC) (4550002C) 6310018a.02.doc UPS 1 Remote Alarm and UPS 2 Remote Alarm and (or Single Module) Control Panel...
  • Page 80 7400 Series UPS User Manual Chapter 4 - Optional equipment Single Module and One plus One Systems Remote Alarm and Control Panel (Part No. 4305002 A) 6310018a.02.doc Figure 4-2 . Interconnections between the UPS modules and the Remote Alarms and Control Panel...

  • Page 81: Introduction

    7400 Series UPS User Manual Chapter 4 - Optional equipment Single Module and One plus One Systems RS 232 Communications Management Board (SGC) (4550002C) 6310018a.02.doc RS 232 Communications Management Board (SGC) (4550002C) The optional RS232 Communications Management Board takes existing 4.6.1...

  • Page 82: General Information

    Chapter 4 - Optional equipment 7400 Series UPS User Manual RS 232 Communications Management Board (SGC) (4550002C) Single Module and One plus One Systems 6310018a.02.doc The system is made up of the following parts or sub-systems: 4.6.2 General Information 1. RS 232 Communications Management Board (SGC), for installation within the UPS.
  • Page 83 7400 Series UPS User Manual Chapter 4 - Optional equipment Single Module and One plus One Systems RS 232 Communications Management Board (SGC) (4550002C) 6310018a.02.doc Figure 4-1 . Typical Series 7400 RS232 Communications configuration 4-17 Issue 2 (02/98) LCA 10/01...

  • Page 84: 5Th Harmonic Input Filter

    Chapter 4 - Optional equipment 7400 Series UPS User Manual 5th Harmonic Input Filter Single Module and One plus One Systems 6310018a.02.doc 5th Harmonic Input Filter An optional input 5th harmonic filter can be added to the 6 pulse 7400 4.7.1...
  • Page 85 7400 Series UPS User Manual Chapter 4 - Optional equipment Single Module and One plus One Systems 5th Harmonic Input Filter 6310018a.02.doc Bypass Supply Bypass Supply Isolator 1 Mains Supply Bypass Isolator Output Supply STATIC RECTIFIER INVERTER SWITCH Input Output...
  • Page 86 Chapter 4 - Optional equipment 7400 Series UPS User Manual 5th Harmonic Input Filter Single Module and One plus One Systems 6310018a.02.doc Figure 4-2 . 80 kVA Input Filter cabinet connections 4-20 Issue 2 (02/98)
  • Page 87 7400 Series UPS User Manual Chapter 4 - Optional equipment Single Module and One plus One Systems 5th Harmonic Input Filter 6310018a.02.doc Figure 4-3 . 120 kVA Input Filter cabinet connections 4-21 Issue 2 (02/98) LCA 10/01...
  • Page 88 Chapter 4 - Optional equipment 7400 Series UPS User Manual 5th Harmonic Input Filter Single Module and One plus One Systems 6310018a.02.doc Figure 4-4 . 200 kVA Input Filter cabinet connections 4-22 Issue 2 (02/98)
  • Page 89 7400 Series UPS User Manual Chapter 4 - Optional equipment Single Module and One plus One Systems 5th Harmonic Input Filter 6310018a.02.doc Internal Input Filter Figure 4-5 . 300-400 kVA Input Filter location 4-23 Issue 2 (02/98) LCA 10/01...

  • Page 90: Cable Top Entry Kit

    Chapter 4 - Optional equipment 7400 Series UPS User Manual Option Board Kit (Part no. 77000005) Single Module and One plus One Systems 6310018a.02.doc Cable top entry kit This modification kit is for use with 80 kVA 120 kVA and 200 kVA 4.8.1...

  • Page 91: Pulse Option

    Liebert certified service engineer. The option is fitted into a purpose designed cabinet that when bolted to the side of the UPS cabinet extends the system width by 400mm.
  • Page 92 Chapter 4 - Optional equipment 7400 Series UPS User Manual Option Board Kit (Part no. 77000005) Single Module and One plus One Systems 6310018a.02.doc 6. Connect cables 4, 5 and 6 from the option cabinet AT1 (terminals A, B and C) to the UPS input inductor L1 (terminals A', B’and C').
  • Page 93 7400 Series UPS User Manual Chapter 4 - Optional equipment Single Module and One plus One Systems Option Board Kit (Part no. 77000005) 6310018a.02.doc 4-27 Issue 2 (02/98) LCA 10/01...
  • Page 94 Chapter 4 - Optional equipment 7400 Series UPS User Manual Option Board Kit (Part no. 77000005) Single Module and One plus One Systems 6310018a.02.doc Figure 4-2 . 12 Pulse option cabinet 4-28 Issue 2 (02/98)

  • Page 95: Introduction

    7400 Series UPS User Manual Chapter 4 - Optional equipment Single Module and One plus One Systems Option Board Kit (Part no. 77000005) 6310018a.02.doc Option Board Kit (Part no. 77000005) 4.10 4.10.1 Introduction This kit is intended for use in to any Series 7400 UPS fitted with the appropriate Rectifier Logic Board (part no.
  • Page 96 Chapter 4 - Optional equipment 7400 Series UPS User Manual Option Board Kit (Part no. 77000005) Single Module and One plus One Systems 6310018a.02.doc 4-30 Issue 2 (02/98)
  • Page 97 7400 Series UPS User Manual Chapter 4 - Optional equipment Single Module and One plus One Systems Option Board Kit (Part no. 77000005) 6310018a.02.doc Figure 4-1 . Option board fixing location Figure 4-2 . Option board connection and layout 4-31...
  • Page 98 Chapter 4 - Optional equipment 7400 Series UPS User Manual Option Board Kit (Part no. 77000005) Single Module and One plus One Systems 6310018a.02.doc 6. Connect auxiliary wiring required as shown in figure 4-18 Battery charging temperature compensation temperature sensing element...
  • Page 99 7400 Series UPS User Manual Chapter 4 - Optional equipment Single Module and One plus One Systems Option Board Kit (Part no. 77000005) 6310018a.02.doc 4-33 Issue 2 (02/98) LCA 10/01...

  • Page 101: Chapter 5 - Maintenance

    7400 Series UPS User Manual Chapter 5 - Maintenance Single Module and One plus One Systems Introduction 6310018a.02.doc Chapter 5 - Maintenance Introduction This chapter contains the procedures necessary to effect general maintenance of the UPS module and battery. Certain procedures entail...
  • Page 102 Chapter 5 - Maintenance 7400 Series UPS User Manual Scheduled Maintenance Single Module and One plus One Systems 6310018a.02.doc Issue 2 (02/98)

  • Page 103: Weekly Checks

    7400 Series UPS User Manual Chapter 5 - Maintenance Single Module and One plus One Systems Scheduled Maintenance 6310018a.02.doc 5.3.2 Weekly checks Carry out the following checks from the mimic panel and log the results: 1. Measure and record the battery float charge voltage.

  • Page 104: Extended Service

    Chapter 5 - Maintenance 7400 Series UPS User Manual Scheduled Maintenance Single Module and One plus One Systems 6310018a.02.doc 6. Carry out a thorough examination of the UPS power components and sub-assemblies, paying particular attention to the following: Electrolytic capacitors - Check for signs of leakage, buckling etc.
  • Page 105 7400 Series UPS User Manual Chapter 5 - Maintenance Single Module and One plus One Systems Scheduled Maintenance 6310018a.02.doc Issue 2 (02/98) LCA 10/01...

  • Page 107: Chapter 6 - Troubleshooting

    7400 Series UPS User Manual Chapter 6 - Troubleshooting Single Module and One plus One Systems Troubleshooting UPS System 6310018a.02.doc Chapter 6 - Troubleshooting Troubleshooting UPS Systems The UPS contains complex electronic control circuits that require a firm understanding in order to carry out comprehensive fault diagnosis and repair of the equipment.
  • Page 108 Chapter 6 - Troubleshooting 7400 Series UPS User Manual Troubleshooting UPS System Single Module and One plus One Systems 6310018a.02.doc Corrective Action When all the indications have been noted, you should refer to the following fault interpretation charts and carry out the actions detailed against any led whose status is abnormal.
  • Page 109 7400 Series UPS User Manual Chapter 6 - Troubleshooting Single Module and One plus One Systems Troubleshooting UPS System 6310018a.02.doc NORMAL ACTIONS TO BE TAKEN IF ABNORMAL NUMBER STATE If this led is OFF it signifies a problem either with the incoming mains supply or the rectifier section.
  • Page 110 Chapter 6 - Troubleshooting 7400 Series UPS User Manual Troubleshooting UPS System Single Module and One plus One Systems 6310018a.02.doc LS6** If LS4 is also OFF then refer to LS4 checks. If LS6 is OFF but LS4 is ON then check the following: Ensure that the output circuit breaker is closed then press the Reset button (PS1) on the UPS Logic Board.

  • Page 111: Display Panel Message Interpretation

    7400 Series UPS User Manual Chapter 6 - Troubleshooting Single Module and One plus One Systems Troubleshooting UPS System 6310018a.02.doc Display panel message interpretation The following table lists the various messages displayed on the operator panel together with a description of their interpretation.
  • Page 112 Chapter 6 - Troubleshooting 7400 Series UPS User Manual Troubleshooting UPS System Single Module and One plus One Systems 6310018a.02.doc INVERTER This warns that the inverter is not synchronised with the bypass supply, which is UNSYNCHRONIZED normally due to a problem with the bypass supply being outside an acceptable WARNING frequency window.

  • Page 113: Chapter 7 - Specification

    7400 Series UPS User Manual Chapter 7 - Specificatio Single Module and One plus One Systems 6310018a.02.doc Chapter 7 - SPECIFICATION SERIES 7400 UPS INDIVIDUAL MODULE SPECIFICATION Note: These specifications give the parameters for the standard 6 Pulse module and the 6 Pulse module with the 12 Pulse option fitted.
  • Page 114 Chapter 7 - Specification 7400 Series UPS User Manual Single Module and One plus One Systems 6310018a.02.doc INPUT RATINGS UNITS Model kVA Rating 6 Pulse 12 Pulse 6 Pulse 12 Pulse 6 Pulse 12 Pulse 6 Pulse 12 Pulse 6 Pulse...
  • Page 115 7400 Series UPS User Manual Chapter 7 - Specificatio Single Module and One plus One Systems 6310018a.02.doc OUTPUT RATINGS UNITS Model kVA Rating 6 Pulse 12 Pulse 6 Pulse 12 Pulse 6 Pulse 12 Pulse 6 Pulse 12 Pulse 6 Pulse...
  • Page 116 Chapter 7 - Specification 7400 Series UPS User Manual Single Module and One plus One Systems 6310018a.02.doc OUTPUT RATINGS UNITS Model kVA Rating 6 Pulse 12 Pulse 6 Pulse 12 Pulse 6 Pulse 12 Pulse 6 Pulse 12 Pulse 6 Pulse 12 Pulse Angle°...
  • Page 117 7400 Series UPS User Manual Chapter 7 - Specificatio Single Module and One plus One Systems 6310018a.02.doc INTERMEDIATE DC CIRCUIT UNITS Model kVA Rating 6 Pulse 12 Pulse 6 Pulse 12 Pulse 6 Pulse 12 Pulse 6 Pulse 12 Pulse...

  • Page 118: Battery Cabinets

    Chapter 7 - Specification 7400 Series UPS User Manual Single Module and One plus One Systems 6310018a.02.doc INTERMEDIATE DC CIRCUIT UNITS Model kVA Rating 6 Pulse 12 Pulse 6 Pulse 12 Pulse 6 Pulse 12 Pulse 6 Pulse 12 Pulse...
  • Page 119 7400 Series UPS User Manual Chapter 7 - Specificatio Single Module and One plus One Systems 6310018a.02.doc MECHANICAL UNITS 860 mm Cabinet CHARACTERISTICS Dimensions (W X D X H) 860 X 800 X 1800 Weight (without batteries) Battery circuit breaker size...

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