Liebert 130 kVA user manual Overload, Maintenance Bypass

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User Manual

Hipulse - Single Phase ‘1+N’ UPS System

130 kVA - 110V

Overload

In the event of an overload at the Inverter output which lasts longer than the typical time/ current (refer to Chapter 9 - Specifications), the Inverter will shut down and the Static Transfer Switch will automatically transfer the load onto the MSS Bypass Mains with no interruption. If the overload falls within the typical time/ current that has been specified, the load will be returned to the inverters when the power drops to a level which can be supported by the number of active units in the system (parallel 1+N).

In the event of a short circuit in the output, the load will normally be transferred onto the MSS Bypass Mains, which will cause the Inverter to shut down; this switch is determined above all by the features of the protective devices in use in the system. In either case, an alarm message will appear on the UPS operator control panel display.

(1+N Parallel UPS System)

The control logic system constantly monitors load requirements and controls the power supplied by the UPS modules. In the event that an overload condition is sustained for greater than a preset time, the load will transfer to the mains bypass supply, when the number of active modules are unable to satisfy load requirements. The load returns to the inverter supply if the power is reduced it a value that can be sustained by the number of active modules in the system.

Maintenance Bypass

A second bypass circuit contained in the UPS cabinet, identified as the 'Maintenance Bypass' line is included to enable a 'raw' mains supply to be made available to the load while facilitating a safe working environment for carrying out scheduled UPS system maintenance or troubleshooting. The circuit is manually selected by the Maintenance Bypass Isolator which can be padlocked in the OFF position.

WARNING

The internal maintenance bypass must not be used when the UPS system is comprised of more than two UPS modules in parallel.

CAUTION

If an automatic circuit breaker device is not present in the input distribution panel, there remains a dangerously high voltage at the output busbars of the UPS module that is switched off

1.2.4ECOMODE

In this operating mode the System prefers to put the load on the Bypass Mains, with the Inverter on stand-by. The load is switched over to the Inverter when the mains goes outside of standard frequency and voltage values (or the values as modified using the operator panel when starting up the system). The ECOMODE configuration requires a different setup in the default menu configuration, which may be prepared in the factory before shipment or during installation by personnel trained in the use of the System.

Note: In order to operate in ECOMODE, UPSs must be provided with compatible software versions:

The 'UPS Logic' card must be release 9.0 or later (the S/W release of the cards may be read on the front panel display, referring to Section 4.1.2 - Operating Instructions).

Operating Instructions in ECOMODE are the same as those described in Chapter 5, except that the load is normally on the Bypass mains, the Load LED is normally on Inverter (5), and corresponding alarm message will be replaced with Load on Mains

(6).

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Contents Hipulse Single Phase ‘1+N’ UPS System Hipulse Single Phase ‘1+N’ UPS System Dear Customer Hipulse Single Phase ‘1+N’ UPS System Rev. No Revision details Hipulse Single Phase ‘1+N’ UPS System Registered Head Office Hipulse Single Phase ‘1+N’ UPS System East Zone Hipulse Single Phase ‘1+N’ UPS System Safety Procedure Hipulse Single Phase ‘1+N’ UPS System General Hipulse Single Phase ‘1+N’ UPS System General Introduction Hipulse Single Phase ‘1+N’ UPS System Operating Instructions Hipulse Single Phase ‘1+N’ UPS System Annexure Hipulse Single Phase ‘1+N’ UPS System Single Module block diagram Introduction Design Concept Hipulse Module DesignUPS Power switches configuration Bypass SuppliesReturn of power mains Off-BatteryUPS Module fault Normal OperationMaintenance Bypass OverloadUPS Power Switch Configuration Battery circuit breakerBattery temperature compensation System ExpansionHipulse Single Phase ‘1+N’ UPS System Installation Procedure Battery location Environmental considerationsUPS location Mechanical Considerations Installation Drawings Preliminary ChecksOverall General Arrangement for 130kVA Single Phase UPS Cable Entry Details Power Cabling System ConfigurationBattery cables Module input cablesSafety earth Cable ratingGeneral Notes Cable ConnectionsProtection against earth faults RCD devices Protective devicesSplit Bypass UPS Battery Cabling procedureParallel 1+N Input ConnectionsInput-module Parallel Connections Auxiliary Connections+VE -VE Cable connections for 130 kVA 1Ph UPSBattery Control Control cablesAuxiliary Terminal Block detail Auxiliary Terminal Block X3 and X4 at UPS DescriptionBattery Connection Emergency StopBack Feed Protection Hipulse Single Phase ‘1+N’ UPS System Operator Control and Display Panel UPS Operator Control / Display PanelInverter control switch Single module operator control panelOperator control panel Mimic indicationsMenu Control switches Operator Panel and LCD DisplayOutput Parameters Bargraph SelectionEPO on UPS module Menu OptionsMap of screen display available to operator Or. for Instanc eDefault Window LCD Display Panel Messages Initializing WindowInfo Window Main Menu WindowOption Selection Mode Alarm / Warning MessagesGeneral notes Power Switches ShutdownOn Static Bypass Location of Power Isolators Ecomode the message Load on Bypass will not appear Battery C.B. Open Bypass Switch Open Ecomode Your load is now powered via the Static Bypass system Normal OperationYour load is now powered via the Static Bypass system Procedure for completely powering down the UPS UPS is now completely powered down Adding a single module to an existing system If YOU are not Sure What YOU are Doing Then do not do IT Ecomode INV OFF VIA Display Load on Bypass Setting the Battery Test Language Selection Changing the current Date and TimeHipulse Single Phase ‘1+N’ UPS System Battery Installation SafetyUPS Batteries Temperature considerations Battery populationBattery protection Battery RacksConnecting the Battery IntroductionBattery Supply To UPS Cabinet Battery Installation Battery circuit breakerBattery Control and Power Connections Battery temperature Board Display Panel Interpretation LED InterpretationProcedure to carry out the reset see Operating Instructions Sr. No Display Message Alarm Interpretation Display Panel MessagesBypass Switch Open BYP. Absent Battery Under Test BYP Xfer Count Block Hipulse Single Phase ‘1+N’ UPS System + N System General1+N System block diagram with Separate Batteries BatteryInstallation procedure Connection of 1+N system parallel single bus cablesInter-module control Connection of EPO Push Button System Start-up and shutdown procedures Separate Batteries Operating InstructionDefault window Hipulse Single Phase ‘1+N’ UPS System Display Panel message interpretation in 1+N System Complete system shutdownUPS Mechanical Characteristics Conformity and StandardUPS Environmental UPS Electrical Characteristics C T I F I E R I N P U T M a I N SUPS Electrical Characteristics DC Intermediate Circuit Rated Power KVA 130UPS Electrical Characteristics Inverter Output V E R T E R O U T P U TUPS Electrical Characteristics Bypass Input Mains Protection, bypass lineHipulse Single Phase ‘1+N’ UPS System Hipulse Single Phase ‘1+N’ UPS System Hipulse Single Phase ‘1+N’ UPS System Remote Alarm Monitor RAM ConnectionsUPS 220/240V AC 50 HzTermination Indication & MeteringProtection Bypass Isolation Cubicle
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