See 4.2.11 Tying the UPS Systems Continuous | Liebert Series 610

Operating Instructions

Figure 15 Normal split load operations to Continuous Tie

M1

FROM:

Normal Operation

System 1

System 2

M1

SS1

SS2

M2

M2

M1

TO:

Continuous Tied Systems

System 1

System 2

M1

SS1

SS2

M2

Tie Open	Continuous Tie
Tie Open	operation for
Tie	module out of
Load 1 Load 2	service

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 16 Continuous Tie to normal split load operation

M1

FROM:

Continuous Tied Systems

System 1

System 2

M1

SS1

SS2

M2

M2

M1

TO:

Normal Operation

System 1

System 2

M1

SS1

SS2

M2

M2

Module returned to service

Tie

Tie Closed	Tie Open
	Tie

Load 1 Load 2Load 1 Load 2

See 4.2.11 - Returning Parallel Systems to Normal	LEGEND: Mx =	Module
Operation - End Continuous Tie.	SSx =	Static Bypass Switch

Figure 17 Continuous Tie to load on one system

M1

FROM:

Continuous Tied Systems

System 1

System 2

M1

SS1

SS2

M2

M2

M1

TO:

Combined Loads Operation

System 1

System 2

M1

SS1

SS2

M2

M2

	Module		Tie Closed
	returned
	to service	Tie
		Load 1	Load 2

Tie Closed

Tie

Load 1 Load 2

See 4.2.4 - Isolating a UPS System for Maintenance -	LEGEND: Mx =	Module
Combined Loads Operation.	SSx =	Static Bypass Switch

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Image 39

Liebert Series 610 user manual See 4.2.11 Tying the UPS Systems Continuous, Parallel Operations

Contents

Continuous POWER-TIE Configuration Page Table of Contents Initial System Start-Up 4.2 Basic Operation Operating Instructions Function System FlexibilityInter-System Isolation and Reliability Basic Dual-Bus Power-Tie one-line diagram Power-Tie systems fault isolation issues Power-Tie systems control interface diagram Operational Description Control System Features Momentary Tie Operation Intersystem SynchronizingMomentary Tie Transfer Controls Continuous Tie Intersystem Sync and Power Sharing Tie System Components Continuous Tie/Transfer/Parallel Control Modes of Operation Power-Tie system one-line diagram Synchronizing the UPS Systems Continuous Power-TieChecking for Phase, Voltage, and Capacity Selecting a Line Sync Source Control panel layout Load Transfers Between UPS Systems Separating Tied Systems Combined Loads on One System from Continuous Tie Operation Combined Loads on One System to Continuous Tie OperationDesign Criteria Line Sync Signal Power-Tie system fault isolation issues Power-Tie systems fault tolerance Improper User Operation Transfer OperationTie Operation Hardware Failures Tie Circuit Breaker or Logic FaultsWhat Happens If a Failure Occurs During a Power Transfer Recommendations Tie Circuit Breaker Selection Mimic Panel Load Transfer Controls Transfer Function Available OK to Transfer Load 2 to System Transfer Control DisabledTransfer Function Available Transfer Function Available OK to Transfer Load 1 to System Control Inhibits Continuous Tie Control Manual Controls Basic Operation Normal Transfer Operation ConfigurationsMaintenance Procedures Isolating Each UPS System Initial System Start-Up Transfer of Load Between Two Systems Maintenance Procedures Tie Control Logic Components Maintenance Procedures Maintaining Power-Tie Components Circuit Breaker Failure Trouble RecoveryAbnormal Operations Improper Transfer Normal Operating Configuration Continuous Tie-SystemsTying the UPS Systems Continuous Parallel Operations Abnormal Operations Isolation for Maintenance Power-Tie system one-line diagram Operation Scenarios/Transfer Procedures See 4.2.4 Isolating a UPS System for Maintenance Combined Loads OperationSee 4.2.5 Transfer of Load Between Two Systems Parallel Operations See 4.2.11 Tying the UPS Systems Continuous UPS System See 4.2.3 Maintenance Procedures Isolating Each One system in bypass to Continuous Tie operation Option Operating Instructions Page Technical Support/Service Company Behind the ProductsLocations