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Liebert®

Load Bus Sync™ Controller for Liebert® NX™ 225-600kVA UPS

User Manual

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Содержание Liebert Load Bus Sync Controller

Страница 1: ...Liebert Load Bus Sync Controller for Liebert NX 225 600kVA UPS User Manual ...

Страница 2: ...or 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 and materials to be used in performing procedures not specifically described in this document The products covered by this instruction manual are manufactured and or sold by Vertiv This document is the property of Vertiv and c...

Страница 3: ...ebert NX 225 600kVA 10 3 3 1 Setting Parameters Enable External Synchronization Control 10 3 3 2 Offset Compensation Tuning 12 3 3 3 Procedure complete for UPS1 14 3 4 Installation Example 15 FIGURES Figure 1 Rear panel reference supply input 3 Figure 2 Front panel UPS sync outputs 4 Figure 3 Two separate utility supplies 5 Figure 4 Common bypass line 6 Figure 5 Liebert NX systems and electrical g...

Страница 4: ...Vertiv Liebert Load Bus Sync Controller Installation Manual ii ...

Страница 5: ...l area may cause harmful interference that the user must correct at his own expense WARNING Risk of electric shock Can cause injury and death Under typical operation and with all UPS doors closed only normal safety precautions are necessary The area around the UPS system should be kept free of puddles of water excess moisture and debris Special safety precautions are required for procedures involv...

Страница 6: ...it cannot fall or touch metal parts containing hazardous voltages Vertiv recommends that the unit not be installed behind the second access panel or in front of the Liebert NX air inlet vents The device operates by identifying one of the connected units as the master and using its frequency as a reference for the other units slaves While a non Liebert UPS can be used as the master only Liebert UPS...

Страница 7: ...hese dimensions Length 7 1 181mm Width 3 7 94mm Height 2 5 64mm Figure 1 Rear panel reference supply input Table 2 Electrical Characteristics Minimum Nominal Maximum Supply voltage 50 60 Hz sinusoidal volts 180 480 250 Supply current mA 14 Output current per channel mA 25 30 Working temperature F C 14 10 104 40 Phase stability error 0 18 Phase shift within voltage tolerance range degrees 1 5 Volta...

Страница 8: ...Vertiv Liebert Load Bus Sync Controller Installation Manual 4 Figure 2 Front panel UPS sync outputs ...

Страница 9: ...n as the master all the other UPS slave outputs will then follow this reference see Figure 3 for details Figure 3 Two separate utility supplies N B fuses should be installed in the phase signal line upstream of the Liebert Load Bus Sync Controller to protect against the damage caused by short circuits Installation tips UPS B should be configured so that it follows the external synchronization sign...

Страница 10: ...the signal line to avoid fires in case of short circuit in the wires 2 3 Liebert Systems and Electrical Generating Devices The Liebert Load Bus Sync Controller can be used to provide phase reference to the Liebert NX UPS in installations with alternative power sources such as diesel generators see Figure 5 NOTE UPS A and UPS B should be configured with main synchronization source to bypass Otherwi...

Страница 11: ...ould be installed in the phase signal line upstream of the Liebert Load Bus Sync Controller to protect against the damage caused by short circuits Source Line B Source Line A Power Source UPS Liebert Load Bus Sync Controller Static Switch To Load Master Power Source L1 Phase Signal Neutral To Others Static Switch To Others Static Switch ...

Страница 12: ...Liebert NX and third party brand UPS Installation Tips UPS 1 and UPS 2 should be configured to follow the external synchronization signal This is achieved by setting the main synchronization source to external signal If UPS 1 and UPS 2 are not set to follow the external synchronization signal the UPS will be in phase with its own bypass line and will follow external synchronization only when the b...

Страница 13: ...ple Third Party UPS not by Vertiv Liebert Load Bus Sync Controller Liebert NX UPS Parallel System Short connection between UPS s and Liebert Load Bus Sync Controller Long connection between Master source and Liebert Load Bus Sync Controller Fuse Floor 1 Supply Floor 2 Supply Floor X Supply ...

Страница 14: ...sible to the master unit If the Liebert Load Bus Sync is mounted on top of a UPS ensure that it does not obstruct air outlets NOTICE Risk of improper electrical connections Can cause equipment damage The Liebert Load Bus Sync Controller must be supplied from L1 and N 3 3 Appendix C Liebert NX 225 600kVA 3 3 1 Setting Parameters Enable External Synchronization Control Once all connections are compl...

Страница 15: ...ng 2 Set PNU 51 Access level to Superservice 4 3 Set PNU 52 Function Selection to HW Init 2 4 Set PNU 700 External synchronization control to Enable 1 5 Set PNU 52 Function selection back to Return 0 6 Set PNU 51 Access level back to Normal operation 1 7 Click on Send all set values push button 8 Once back in normal operation open QS1 and the electronics will shut down NOTE Since the DIC FW Rev 1 ...

Страница 16: ...onnected to the UPS system The PNU 700 must be set to 1 The PNU 731 32 calibration must be done on each UPS in the system Perform the following steps 1 Connect an oscilloscope to the first UPS Connect Channel 1 to Bypass Input L1 and N and Channel 2 to UPS Output L1 and N as shown in Figure 8 Main BUS A Figure 8 Offset compensation 2 With NO LOAD connected start the inverter 3 Open the reserve inp...

Страница 17: ... Close QS2 on the first UPS 2 Wait for the Warning W1 1 Bypass Switch Open to be cleared 3 Stop the inverter 4 In PPVis click on Service Tools and select Parameter 5 Set Access level to Superservice PNU 51 4 6 Set Function Selection to HW Init PNU 52 2 7 Set PNU 731 32 EXT_SYNCH_OFFSET to the new calculated value 16121 in our example 8 Set Function selection back to Return PNU 52 0 9 Set Access le...

Страница 18: ...iebert Load Bus Sync Controller Installation Manual 14 3 3 3 Procedure complete for UPS1 NOTE This offset compensation procedure must be followed for ALL the units connected to Liebert Load Bus Sync Controller ...

Страница 19: ...nnections to the slave units are as short as possible Install a 2A slow blow fuse on the phase signal line as close as possible to the master unit Third Party UPS not by Vertiv Liebert Load Bus Sync Controller Liebert NX UPS Parallel System Short connection between UPS s and Liebert Load Bus Sync Controller Long connection between Master source and Liebert Load Bus Sync Controller Fuse Floor 1 Sup...

Страница 20: ...Vertiv Liebert Load Bus Sync Controller Installation Manual 16 NOTES ...

Страница 21: ...Vertiv Liebert Load Bus Sync Controller Installation Manual 17 ...

Страница 22: ...Vertiv Liebert Load Bus Sync Controller Installation Manual 18 ...

Страница 23: ......

Страница 24: ...ames 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 Co assumes no responsibility and disclaims all liability for damages resulting from use of this information or for any errors or omissions Specifications are subject to change without notice SL 25358_REV2_8...

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