Liebert Series 610 user manual Transfer Control Disabled, Transfer Function Available

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Control Panel Description

OK to Transfer Load 2 to System 2

This light indicates that it is safe to transfer Load 2 from UPS System 1 to UPS System 2. The trans- fer occurs when the PUSH TO TRANSFER AFTER OK button is pressed, but only if this light is on.

Transfer Control Disabled

This light indicates that load transfers are not allowed because the systems are currently being put in parallel operation.

Transfer Function Available

The Transfer Function Available lights indicate the transfer options the operator has available based on the current system configuration.

Transfer Function Available - OK to Transfer Load 1 to System 1

This light indicates that the systems are in a configuration where a transfer of load 1 from UPS Sys- tem 2 to UPS System 1 can be attempted.

Transfer Function Available - OK to Transfer Load 1 to System 2

This light indicates that the systems are in a configuration where a transfer of load 1 from the UPS System 1 to UPS System 2 can be attempted.

Transfer Function Available - OK to Transfer Load 2 to System 1

This light indicates that the systems are in a configuration where a transfer of load 2 from UPS Sys- tem 2 to UPS System 1 can be attempted.

Transfer Function Available - OK to Transfer Load 2 to System 1

This light indicates that the systems are in a configuration where a transfer of load 2 from UPS Sys- tem 1 to UPS System 2 can be attempted.

Transfer Load To - System 1

When this button is pressed, it initiates a sequence to allow a load transfer to UPS System 1. The transfer to be performed is automatically determined by the current state of the Tie and Load circuit breakers. The button turns on indicating that the sequence is armed. When the control logic deter- mines all conditions for a safe transfer have been met, it turns on the appropriate OK TO TRANSFER light.

Transfer Load To - System 2

When this button is pressed it initiates a sequence to allow a load transfer to UPS System 2. The transfer to be performed is automatically determined by the current state of the Tie and Load circuit breakers. The button turns on indicating that the sequence is armed. When the control logic deter- mines that all conditions for a safe transfer have been met, it turns on the appropriate OK TO TRANSFER light.

Push to Transfer After OK

This button starts the transfer after the OK TO TRANSFER light turns on.

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Contents Continuous POWER-TIE Configuration Page Table of Contents Operating Instructions Initial System Start-Up 4.2 Basic OperationInter-System Isolation and Reliability FunctionSystem Flexibility Basic Dual-Bus Power-Tie one-line diagram Power-Tie systems fault isolation issues Power-Tie systems control interface diagram Control System Features Operational DescriptionMomentary Tie Transfer Controls Momentary Tie OperationIntersystem Synchronizing Intersystem Sync and Power Sharing Continuous TieContinuous Tie/Transfer/Parallel Control Tie System ComponentsModes of Operation Power-Tie system one-line diagram Selecting a Line Sync Source Continuous Power-TieChecking for Phase, Voltage, and Capacity Synchronizing the UPS SystemsControl panel layout Separating Tied Systems Load Transfers Between UPS SystemsDesign Criteria Combined Loads on One System from Continuous Tie OperationCombined Loads on One System to Continuous Tie Operation Line Sync Signal Power-Tie system fault isolation issues Power-Tie systems fault tolerance Tie Operation Improper User OperationTransfer Operation Recommendations Tie Circuit Breaker Selection Tie Circuit Breaker or Logic FaultsWhat Happens If a Failure Occurs During a Power Transfer Hardware FailuresMimic Panel Load Transfer Controls Transfer Function Available OK to Transfer Load 1 to System Transfer Control DisabledTransfer Function Available Transfer Function Available OK to Transfer Load 2 to SystemContinuous Tie Control Control InhibitsManual Controls Initial System Start-Up Normal Transfer Operation ConfigurationsMaintenance Procedures Isolating Each UPS System Basic OperationTransfer of Load Between Two Systems Maintenance Procedures Maintaining Power-Tie Components Maintenance Procedures Tie Control Logic ComponentsImproper Transfer Trouble RecoveryAbnormal Operations Circuit Breaker FailureTying the UPS Systems Continuous Parallel Operations Normal Operating ConfigurationContinuous Tie-Systems Abnormal Operations Isolation for Maintenance Power-Tie system one-line diagram Operation Scenarios/Transfer Procedures See 4.2.5 Transfer of Load Between Two Systems See 4.2.4 Isolating a UPS System for MaintenanceCombined Loads Operation See 4.2.11 Tying the UPS Systems Continuous Parallel OperationsSee 4.2.3 Maintenance Procedures Isolating Each UPS SystemOne system in bypass to Continuous Tie operation Option Operating Instructions Page Locations Technical Support/ServiceCompany Behind the Products
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