Powerware SOLA 4000 manual Maintenance Bypass, Hot-Standby Systems

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SOLA 4000 - General System Description

1 UPS Assembly

1.7 Maintenance Bypass

The maintenance bypass function is to supply power directly to the connected load during UPS maintenance. The bypass consists essentially of one switch IBY.

With SOLA 4000 series UPS systems, switching from different operating modes to maintenance bypass can be performed without interruption. With the maintenance bypass on, the UPS system may be completely switched off, thus permitting maintenance work to be carried out safely ( there will only be voltage at the input and output terminals and their connections to the circuit-breakers).

In order to prevent erraneous switching of the maintenance bypass switch IBY that could possibly cause parallel connection of the bypass line and the inverter line, IBY is electronically intercon- nected with the static inverter switch SSI. Thus, during actuation of IBY, switch SSB will be closed and switch SSI opened automati- cally, preventing parallel operation of the maintenance bypass network and the inverter.

As an option, an external wall-mounted no-break maintenance bypass switch (see FIG. 1.6.1) may be supplied by SOLA.This switch provides simple one-step transfer to maintenance bypass (version 1) without the possibility of erraneous switching and without interruption to the load.For the version 2 type maintenance bypass, an additional position is provided in order to completely isolate the UPS with the one bypass switch.In this way, the UPS may be isolated totally from all supply by switching off the input supply to the UPS.

1.8 Hot-Standby Systems

A hot-standby UPS system basically consists of two (or more) single UPS units which operate independently of each other. Any one unit can be feeding the load at any time.

•All units are continuously in operation; but only one is supplying the load, at any one time.

•In case of a failure in the unit currently supplying the load, another unit is ready to takeover the load without an interrup- tion on the output side. i.e. the load is still supplied with condi- tioned and stabilised power.

•The load is supplied by the static bypass, only if there is no inverter ready in the system to takeover the load.

JUE 401264

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Contents Uninterruptible Power Supply Sola 4000 Operating Manual Safety Instructions Safety InstructionsSola 4000 Operating Manual Safety Instructions UPS Assembly Sola 4000 General System Description ChaptersFeatures UPS AssemblySola 4000 General System Description Rectifier/Battery Charger UPS System StructureStatic Switches Battery AccumulatorInverter Under inverter failure conditions Maintenance Bypass Hot-Standby SystemsParallel-Redundant Systems Parallel SystemsFunctional Description Emergency Power OffOperating Panel Remote MonitoringAdditional START- UP Procedure for MULTI-UNIT SYSTEMS42 Sola 4000 Installation and Initial Start-Up ChaptersFiguresInstallation Initial START- UPSola 4000 Installation and Initial Start-Up Sola 4000 Installation and Initial Start-UpInstallation Mechanical InstallationWeight Floor Space RequiredRoom Size for 10-60 kVA UPS 6 UPS 10-60kVA room size JUERoom Size for 80-120 kVA UPS with auxiliary AC001 cabinet 7 UPS 80-120kVA room size JUERoom Size for 80-120 kVA UPS with auxiliary AC002 cabinet 8 UPS 80-120kVA room size JUEElectrical Installation General1 UPS connection diagram, version Input Cables / Fuses Mm²2 UPS connection diagram, version Input Cables Output / Battery CablesInput Fuses Installation of additional optional cabi- nets Sola 4000 with isolation transformer of the bypass supply3 UPS connection diagram, with THD filters Sola 4000 with THD filters4 Installation of 12-pulse units without galvanic isolation Sola 4000 with 12-pulse charger / rectifierInstallation of an External Maintenance Bypass 1 External Maintenance Bypass Switch Version 1 2 position2 External Maintenance Bypass Switch Version 2 3 position Cpnet Interface Card InstallationFunctions MOK Remote Emergency Power off 1 Connection of Remote EPO with N.C. contactDiesel Generator Operation Common Alarm Contacts Remote ResetInstallation of Hot-Standby Systems Installation Installation of the Interconnection Cable Installation of Parallel Systems Installation Installation Installation of the Interconnection Cables 11.3 Location of connectors on the IBYBP-CP pcbBattery Installation 12.1 Internal Battery connections Internal Electrical ConnectionsInstallation of External Batteries 12.3 B3/38 battery trays in the second and the third levelInstallation 12.6 B3/38 internal electrical connections 12.7 Battery cabinet B3/65 12.9 B3/65 internal electrical connections Connection Between UPS and Additional Battery Cabinets Connection of Auxiliary ContactsInitial Start-Up Start-Up ProcedureInitial START-UP ? Does this voltage have positive polarity? OK? Yes Static Switch Commutation CheckBattery Charging Current Limitation CheckAdditional Start-Up Proced. for Multi-Unit Systems Start-Up Procedure for Hot -standby Sys- temsAdditional START-UP PROCED. for MULTI-UNIT Systems Start-Up Procedure for Parallel Systems System START-UP has NOW Been Successfully Completed Sola 4000 Operation Chapters Operating Modes Operating ModesSola 4000 Operation GeneralLED Indication Operating Modes STAND-ALONE Unit Battery OperationOperating Modes Stand-alone Unit Normal OperationBypass Operation Maintenance Bypass OperationStandby Operation Operating Modes HOT-STANDBY Operation Operating Modes Hot-Standby OperationOperation with an Inverter Failure Operating Modes Hot-Standby Operation Operating Modes Parallel and Parallel/Redundant Operation Partial Load OperationOperating Modes Parallel and Parallel/Redundant Operation Operating Modes Parallel and Parallel/Redundant Operation Operating Instructions Switching On the UPS System / from Maintenance BypassInitial UPS Operating Mode Operating StepsFinal UPS Operating Mode Switching Off the UPS System / to Main- tenance Bypass CPHC16-SIPR IPRS1 ICPPB2 IRE IUG IRP Reset after Activating E.P.O Emergency Shut DownSola 4000 Operating Panel Chapters TablesSola 4000 Operating Panel Battery MonitoringFunctions Indication of Important DataUPS Operating Mode Indication Alarm signallingEmergency Power Off LED Indication LED IndicationLED 4 Battery Discharging LEDs Battery Indicator LED 28 E.P.OLED 30 Boost Charge Communication with a PC Communication with a PCConnection to PC Snmp Mode Service ModeAlarms Oscillator failure Static switch failure SSIStatic switch failure SSB IUG monitoring failureUPS status MeteringPanel Settings DIP Switch SettingsTAB 4.4 Setting of SW2 Location of DIP-switches and pushbuttons on the CPU/NCP pcb Installation Remote PanelFunctions UPS =1...8 identifies the UPSDIP-switch settings UPSx Followed bySola 4000 PCB Description Chapters UPS Control LogicSola 4000 PCB Description UPS Control LogicUPS Control Logic Rectifier IF/PS R Front ViewReset MAX. Vdc CPHC16 R Front ViewInverter Reset ICP Front ViewICT-2 Front View TP5IPS-500 Front View IPR front view Bypass IF/PS S Front View CPHC16 S Front View BypassSystem Data Sola 4000 Technical DataBattery Data Rectifier DataSola 4000 Technical Data System DataRectifier Data Battery Data Battery DataInverter Data Inverter Data