Emerson GXT2-PP20KRT208 user manual Paralleling System Connections

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Installation

5.2Paralleling System Connections

The Liebert GXT2-PP20KRT208 is shipped with the input and output slots for UPS and the optional output power distribution section covered. Installation of the paralleling system requires: parallel power cables, fixed plates and cable clamps. These are included in Liebert GXT2-20KPC-6 kit (see Figure 7). Follow the procedure below to start the installation.

! WARNING

Risk of electric shock. May cause property damage, personal injury or death.

Lethal voltages may exist within the UPS and parallel POD as long as the UPS is connected.

Ensure that all the UPS are disconnected and that the power is off before working within the parallel POD. Check the circuits with a voltmeter.

In addition, make sure all the internal batteries within the Liebert GXT2-10000RT-208 UPSs are disconnected.

1.Remove the screws securing the parallel POD covers. Keep the optional output power distribution cover closed when not in use (see 5.4 - Add an Output Power Distribution Module— Optional for the optional distribution POD installation).

2.Connect one end (eight-pole connector) of the parallel power cable to the UPS input and output slot on the parallel POD. They are color-coded for proper alignment and installation.

3.Use the fixed plate to tighten the connector securely.

4.Use two cable clamps to fasten the parallel power cable onto the parallel POD (10mm hex driver is required).

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5.Remove the output distribution cover from the rear panel of the UPS. If either power distribution module PD-101, PD-102 or PD-1xx is installed on rear panel of the UPS, it must be removed.

6.Insert the edge guards (see Figure 6) into the open slots on the cable housing.

7.Pass the other end of the parallel power cable through the cable housing for output distribution of UPS and connect the connectors to the slots inside the UPS. The connectors are color-coded and assembled for proper alignment and installation.

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8. Use the fixed plates to tighten the connectors securely.

9. Secure the cable housing to the rear panel of the UPS with four screws.

NOTE

The parallel power cables assembly is the only connection to the UPS for input/output power when connected to the parallel POD. Do not make any connections to the input/output hardwired terminal block on the UPS’ rear panel.

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Contents Liebert GXT2-PP20KRT208 Page Table of Contents Communication SpecificationsImportant Safety Instructions Glossary of Symbols Introduction Compatibility Maintenance BypassRedundancy Design System DescriptionEthernet 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
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