Liebert Series 610 user manual See 4.2.3 Maintenance Procedures Isolating Each, UPS System

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			Operating Instructions
Figure 18 Load on one system to Continuous Tie
	FROM:		TO:
Combined Loads Operation		Continuous Tied Systems
System 1	System 2	System 1	System 2

M1

M1

SS1

SS2

M2

M2

M1

M1

SS1

SS2

M2

M2

Momentary Tie for transfer of Load 2 to System 1

Tie Closed

Tie

Load 1 Load 2

Tie Closed

Tie

Load 1 Load 2

See 4.2.11 - Tying the UPS Systems - Continuous	LEGEND: Mx =	Module
Parallel Operations.	SSx =	Static Bypass Switch

Figure 19 One system in bypass to both feeders combined on remaining operational system

M1

FROM:

One System in Bypass Mode

System 1

System 2

M1

SS1

SS2

M1

TO:

Combined Loads Operation

System 1

System 2

M1

SS1

SS2

M2

M2

Tie Open		Momentary Tie		Tie Closed
Tie Open		for transfer of		Tie Closed
Tie		Load 2 to	Tie
Load 1	Load 2	System 1	Load 1	Load 2

See 4.2.3 - Maintenance Procedures - Isolating Each	LEGEND: Mx =	Module
UPS System.	SSx =	Static Bypass Switch

36

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Contents Continuous POWER-TIE Configuration Page Table of Contents Operating Instructions Initial System Start-Up 4.2 Basic OperationSystem Flexibility FunctionInter-System Isolation and Reliability Basic Dual-Bus Power-Tie one-line diagram Power-Tie systems fault isolation issues Power-Tie systems control interface diagram Control System Features Operational DescriptionIntersystem Synchronizing Momentary Tie OperationMomentary Tie Transfer Controls Intersystem Sync and Power Sharing Continuous TieContinuous Tie/Transfer/Parallel Control Tie System ComponentsModes of Operation Power-Tie system one-line diagram Continuous Power-Tie Checking for Phase, Voltage, and CapacitySelecting a Line Sync Source Synchronizing the UPS SystemsControl panel layout Separating Tied Systems Load Transfers Between UPS SystemsCombined Loads on One System to Continuous Tie Operation Combined Loads on One System from Continuous Tie OperationDesign Criteria Line Sync Signal Power-Tie system fault isolation issues Power-Tie systems fault tolerance Transfer Operation Improper User OperationTie Operation Tie Circuit Breaker or Logic Faults What Happens If a Failure Occurs During a Power TransferRecommendations Tie Circuit Breaker Selection Hardware FailuresMimic Panel Load Transfer Controls Transfer Control Disabled Transfer Function AvailableTransfer Function Available OK to Transfer Load 1 to System Transfer Function Available OK to Transfer Load 2 to SystemContinuous Tie Control Control InhibitsManual Controls Normal Transfer Operation Configurations Maintenance Procedures Isolating Each UPS SystemInitial System Start-Up Basic OperationTransfer of Load Between Two Systems Maintenance Procedures Maintaining Power-Tie Components Maintenance Procedures Tie Control Logic ComponentsTrouble Recovery Abnormal OperationsImproper Transfer Circuit Breaker FailureContinuous Tie-Systems Normal Operating ConfigurationTying the UPS Systems Continuous Parallel Operations Abnormal Operations Isolation for Maintenance Power-Tie system one-line diagram Operation Scenarios/Transfer Procedures Combined Loads Operation See 4.2.4 Isolating a UPS System for MaintenanceSee 4.2.5 Transfer of Load Between Two Systems 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 Company Behind the Products Technical Support/ServiceLocations