Emerson GXT2-PP20KRT208 user manual Paralleling for Capacity and Redundancy, Configuration

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Configuration

7.0CONFIGURATION

The Liebert GXT2-PP20KRT208 parallel POD allows connecting a maximum of three UPSs in paral- lel. See the following table for the maximum output power.

	Table 2	Maximum output power from paralleled UPSs

		Method	Number of UPSs	Maximum Output Power	Redundancy

	Paralleling for Capacity		2	20kVA	—

	Paralleling for Capacity		3	20kVA	10kVA
	and Redundancy		3	20kVA	10kVA
	and Redundancy

7.1Paralleling for Capacity

When two UPSs are connected to the paralleling system, the maximum output power is 20kVA. Each UPS supplies 10kVA of output power. Redundant power is not available if either of the paralleled the UPSs fails.

7.2Paralleling for Capacity and Redundancy

When three UPSs are connected to the paralleling system, the maximum output power is 20kVA. plus redundancy of one 10kVA UPS. This setup permits that the paralleling system to operate normally even if one of the UPSs fails or runs out of battery power.

For the paralleling procedures, see 5.0 - Installation.

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Contents Liebert GXT2-PP20KRT208 Page Table of Contents Communication SpecificationsImportant Safety Instructions Glossary of Symbols Introduction System Description Maintenance BypassCompatibility Redundancy DesignEthernet Liebert MultiLink ShutdownSystem Description Major Components Input and Output Slots for UPSMain Input / Output Terminal Blocks Parallel Communication Port Optional Power DistributionItems shipped with Liebert GXT2-PP20KRT208 WHAT’S IncludedWhat You Need Mount the Liebert GXT2-PP20KRT208 in a Rack or on a Wall InstallationMount the Liebert GXT2-PP20KRT208 on a Wall Paralleling System Connections Installation Electrical requirements Main Input and Output Terminal Block ConnectionsAdd an Output Power Distribution Module-Optional O/P O/P I/P O/P Parallel POD Main Electrical Connection-Must Be InstalledInitial Startup and Electrical Checks Paralleling for Capacity and Redundancy ConfigurationParalleling for Capacity Operation Operating ModesBypass Mode Parallel Communication Cable Disconnection Fault ConditionBattery Test Remove a Single UPS from the Paralleling System Add a Single UPS to the Online Paralleling SystemOverload Condition Replacing a Faulty Power Module or UPS Internal BatteryBattery Low Voltage-Battery Mode Communication Communication InterfaceUPS Status Information Calculating total load per UPS UPS Configuration Settings Parallel POD specifications SpecificationsOptional output distribution specifications-PD-201 Page Net