Vertiv Liebert EXL 31 Installer/User Manual Download | Manualshive

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Liebert®

Load Bus Sync Controller

Installer/User Guide

for Liebert® EXL S1 UPS

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Summary of Contents for Liebert EXL 31

Page 1: ...Liebert Load Bus Sync Controller Installer User Guide for Liebert EXL S1 UPS...

Page 2: ...isclaims all liability for damages resulting from use of this information or for any errors or omissions Refer to other local practices or building codes as applicable for the correct methods tools an...

Page 3: ...Configurations 4 1 1 1 Two Systems with Separate Utility Supplies 4 1 2 Two UPS Units With Common Bypass Line 6 1 3 Liebert Systems with Electrical Generating Devices 8 1 4 Liebert EXL S1 with a Third...

Page 4: ...Vertiv Load Bus Sync Controller Installer User Guide ii This page intentionally left blank...

Page 5: ...llowed during the installation and maintenance of the UPS and batteries Read this manual thoroughly and the safety and regulatory information available at https www vertiv com ComplianceRegulatoryInfo...

Page 6: ...Vertiv Load Bus Sync Controller Installer User Guide 2 This page intentionally left blank...

Page 7: ...out of tolerance The reference frequency is generated only when the master utility supply line is within acceptable limits The Liebert Load Bus Sync Controller may drive up to two separate units that...

Page 8: ...put signal and the outputs will not be synchronized With the Liebert Load Bus Sync Controller one of the UPS outputs is the master and the other UPS slave outputs follow the master reference see Figur...

Page 9: ...TEM DESCRIPTION 1 Power Source A 2 Power Source B 3 Master 4 Slave 5 Source Line B 6 To others Static Switch 7 To load 8 To others Static Switch 9 Source Line A 10 Static Switch 11 Load Bus Sync Contr...

Page 10: ...as shown in Figure 1 3 below the systems are always synchronized even if one of the bypass lines is out of tolerance and are usually capable of synchronous operation NOTE Install N B fuses at the begi...

Page 11: ...ss Line 3 Power Source B 4 UPS A 5 UPS B 6 Phase A 7 Phase C 8 Liebert Load Bus Sync Controller 9 Source Line B 10 Source Line A 11 Static Switch 12 To others Static Switch 13 To load 14 To others Sta...

Page 12: ...upstream of the Liebert Load Bus Sync Controller to protect against the damage caused by short circuits Figure 1 4 Liebert UPS Systems and an Alternative Power Source ITEM DESCRIPTION 1 Power Source...

Page 13: ...t master UPS The Liebert units may be configured as parallel or single units see Figure 1 5 on the next page NOTE Configure all of the Liebert UPSs to follow the external synchronization signal by set...

Page 14: ...non Vertiv Power Source 2 Power Source B Liebert EXL S1 Power Source 3 UPS 4 Source Line B 5 To others Static Switch 6 To load 7 Static Switch 8 To others Static Switch 9 Source Line A 10 Phase A 11...

Page 15: ...e as short as possible Install a 2 A slow blow fuse on the phase signal line as close as possible to the master unit 2 2 Connecting the Controller to the UPS System Referring to Figure 1 1 on page 4 f...

Page 16: ...Vertiv Load Bus Sync Controller Installer User Guide 12 This page intentionally left blank...

Page 17: ...Vertiv Load Bus Sync Controller Installer User Guide...

Page 18: ...names and logos referred to are trade names trademarks or registered trademarks of their respective owners While every precaution has been taken to ensure accuracy and completeness herein Vertiv Group...

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