Vertiv Liebert NX Operation And Maintenance Manual
225-600kva, three-phase, single-module &
multi-module
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Summary of Contents for Vertiv Liebert NX
- Page 1 Liebert ® ™ Operation and Maintenance Manual — 225-600kVA, Three-Phase, Single-Module & Multi-Module...
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Page 2: Product Warranty Registration
Click on Product Registration and fill out the form. ©2016 Vertiv Co. All rights reserved throughout the world. This document may contain confidential and/or proprietary information of Liebert Corporation, and its receipt or possession does not convey any right to reproduce, disclose its contents, or to manufacture or sell anything that it may describe. -
Page 3: Table Of Contents
TABLE OF CONTENTS ............1 MPORTANT AFETY NSTRUCTIONS... - Page 4 Vertiv Liebert Services ........
- Page 5 Main component locations—225-300kVA Liebert NX ........
- Page 6 TABLES Table 1 Measurements for functional blocks ............16 Table 2 Functional block information .
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Page 7: Important Safety Instructions
NSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important instructions that should be followed during installation of your Liebert NX UPS. Read this manual thoroughly, paying special attention to the sections that apply to your installation, before working with the UPS. Retain this manual for use by installing personnel. - Page 8 Operation of this unit in a residential area may cause harmful interference that the user must correct at his own expense. ® ™ Vertiv Liebert 225-600kVA Operation Manual...
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Page 9: 1.0 Introduction
NOTE Vertiv recommends that the Liebert NX 225-600kVA always be installed with a maintenance bypass system that fully isolates the UPS from the load and the AC power source. This allows service personnel to safely repair the UPS if needed while maintaining power to the critical load. -
Page 10: Modes Of Operation
Eco Mode When the Liebert NX 225-600 kVA is in Eco Mode, the load will be supported by the bypass source as long as the power quality of the bypass source remains within specified limits. This reduces energy consumption and boosts efficiency to greater than 98%. -
Page 11: Options
• Network and BMS Connectivity and Monitoring—Communication cards support SNMP, Modbus or both (Dual Protocol) • Battery and Racks—The batteries provide power in the event of a power outage. The Liebert NX UPS can use a variety of battery types, provided the battery plant is designed for the UPS DC voltage range and the load requirements of your application. -
Page 12: 2.0 Operation
Operation 2.0 OPERATION The Liebert NX UPS is equipped with a microprocessor-based display touchscreen designed for convenient and reliable operation. The display is driven by menu-prompted software. HYSICAL AYOUT OF THE Figure 2 Main component locations—225-300kVA Liebert NX Rectifier Subassemblies... -
Page 13: Figure 3 Main Component Details-225 To 300Kva Liebert Nx
Operation Figure 3 Main component details—225 to 300kVA Liebert NX Control LCD Main Input Circuit Breaker (CB1), optional XS6 (LIFE) XT1/2 Backfeed Circuit XT3/8 Breaker (BFB) X19A X19B External Communication Panel, See Detail A (Non-Functional) (Non-Functional) Front Doors Removed Bypass Busbars Detail A Ø, A, B, C... -
Page 14: Interface Display Features
Doors and Inner Skins Removed NTERFACE ISPLAY EATURES The Liebert NX interface display enables the operator to perform such tasks as: • Check operational status • Monitor the power flow through the UPS system and all meter readings • Execute operational procedures •... -
Page 15: Figure 5 Main Display Screen, Typical
Gray = Not Active Yellow = Advisory Red = Faulted or Disabled Figure 6 Normal Mode Module Bypass UPS Module AC Input Module Rectifier AC Input Output Critical Load Booster/ Charger To DC Supply ® ™ Vertiv | Liebert 225-600kVA Operation Manual... -
Page 16: Touchscreen Navigation
• Bypass Input Voltage • Bypass Input Frequency • Input Voltage • Input Current • Input Frequency • Output Voltage • Output Current • Output Frequency • DC Source Voltage • DC Source Current ® ™ Vertiv Liebert 225-600kVA Operation Manual... -
Page 17: Status
If screen is inactive for 30 seconds, the LCD will revert to the system status screen. 2.3.2 Status This menu item displays a Status summary of warnings, faults and other events, as well as status screens for each functional block, such as Rectifier, Inverter and Load. ® ™ Vertiv | Liebert 225-600kVA Operation Manual... -
Page 18: Figure 9 Main Display Screen, Mbd Open
In this case, the UPS is operating in double-conversion mode without power backup. All power paths (except the internal bypass and maintenance bypasses lines) are green (active). The bypass static switch and the bypass lines are gray, indicating that they are not active. Figure 10 Load status Gray Green Green Green Green Green ® ™ Vertiv Liebert 225-600kVA Operation Manual... -
Page 19: Figure 12 Bypass Status
Operation Figure 11 Rectifier status Gray Green Green Green Green Green Figure 12 Bypass status Gray Green Green Green Green Green ® ™ Vertiv | Liebert 225-600kVA Operation Manual... -
Page 20: Figure 13 Inverter Status
Operation Figure 13 Inverter status Gray Green Green Green Green Green Figure 14 Charger/Booster status Gray Green Green Green Green Green ® ™ Vertiv Liebert 225-600kVA Operation Manual... -
Page 21: Figure 15 Battery Status
Operation Figure 15 Battery status Gray Green Green Green Green ® ™ Vertiv | Liebert 225-600kVA Operation Manual... -
Page 22: Events Log Menu
(# of Mains failures) — — — — — Load% Total Load — — — — — Power (kW) Total Load — — — — — Power (kVA) Ambient — — — — — Temperature ® ™ Vertiv Liebert 225-600kVA Operation Manual... -
Page 23: Figure 18 Bypass Measures
Operation Figure 17 Rectifier measures Figure 18 Bypass measures ® ™ Vertiv | Liebert 225-600kVA Operation Manual... -
Page 24: Figure 19 Inverter Measures
Operation Figure 19 Inverter measures Figure 20 Charger/Booster measures ® ™ Vertiv Liebert 225-600kVA Operation Manual... -
Page 25: Figure 21 Battery Measures
Operation Figure 21 Battery measures Figure 22 Load measures ® ™ Vertiv | Liebert 225-600kVA Operation Manual... -
Page 26: Battery Menu
Risk of electric shock, explosive reaction, hazardous chemicals and fire. Can cause equipment damage, personal injury and death. Battery equalize charging should be performed only by specially trained personnel or Vertiv Liebert Services personnel. Contact Liebert Services before enabling equalize charging with valve-regulated, lead-acid batteries, such as those used in Liebert battery cabinets. -
Page 27: Figure 23 Battery Parameters
Operation Battery Measures This section monitors variables applicable to the battery. Figure 23 Battery parameters Stop Battery test button ® ™ Vertiv | Liebert 225-600kVA Operation Manual... -
Page 28: Life ™ Menu
Station Administrator, so it can be monitored in real time. • Closing connection The UPS is closing the connection. • Call delayed The UPS has scheduled a new call because the previous call failed. ® ™ Vertiv Liebert 225-600kVA Operation Manual... -
Page 29: Settings Menu
Eco Mode and changing passcodes. Figure 25 Settings Menus LCD Settings Language Settings Time Zone Settings Date and Time Settings Eco Mode Settings Passcode Settings ® ™ Vertiv | Liebert 225-600kVA Operation Manual... -
Page 30: Animated One-Line Mimic
Frequency, Overload Time Remaining, Load %, Total Load Real & Apparent, Ambient Temperature 2.4.2 About Menu This button displays the type and size of the unit. Touching this area reveals the serial number, firmware details and the IP and MAC addresses. Figure 26 About menu ® ™ Vertiv Liebert 225-600kVA Operation Manual... -
Page 31: Modes Of Operation
This section illustrates the flow of power through circuit breakers, switches and UPS components during various modes of operation. The same modes of operation apply to all configurations of the Liebert NX. Highlighted (thick) lines in the diagrams indicate power flow and power availability. These illustrations do not show an alternate power source (generator) and automatic transfer switch (external to the UPS) that might be present. -
Page 32: Figure 28 Load On Bypass, Ups Available
Note that Figure 28 illustrates the UPS in Eco Mode. The one-line mimic display appears as shown in Figure 29. Figure 29 Eco Mode one-line mimic display Green Green Gray Yellow Green Green For more information on Eco Mode, see 2.6 - Eco Mode Active. ® ™ Vertiv Liebert 225-600kVA Operation Manual... -
Page 33: Normal Mode-Load On Ups
The battery block in the UPS module monitor/mimic display indicates Charge or Discharge and the current in amperes. Figure 31 Input power failure, load on DC source Gray Gray Green Green Green Green ® ™ Vertiv | Liebert 225-600kVA Operation Manual... -
Page 34: Off Dc Source
UPS is removed from the load. In many systems, the REPO circuit also opens the circuit breakers that provide power to the bypass lines and the UPS controls. Refer to 2.7.5 - Shut Down Single Module UPS System. Figure 33 Remote Emergency Power Off Gray ® ™ Vertiv Liebert 225-600kVA Operation Manual... -
Page 35: Eco Mode Active
Active Eco Mode If priority has been set to Active Eco Mode, the control system will allow the Liebert NX to continuously monitor the condition of the input supply, including its failure rate, to ensure maximum reliability for critical users. That analysis determines whether the Liebert NX supplies the load through the bypass source or the conditioned line. -
Page 36: Inverter Stop-Active Eco Mode
Return to Normal Conditions-Active Eco Mode When the source supply returns to within tolerance limits, the Liebert NX will continue to supply the load via the conditioned line for a period that depends on the bypass source failure rate (the conditioned line draws power from the source, not the battery). -
Page 37: Figure 34 Maintenance Bypass Configurations-Two Breaker
Operation Figure 34 Maintenance bypass configurations—Two breaker Figure 35 Maintenance bypass configurations—Three breaker for single-input UPS Figure 36 Maintenance bypass configurations—Three breaker for dual-input UPS ® ™ Vertiv | Liebert 225-600kVA Operation Manual... -
Page 38: Figure 37 Maintenance Bypass Configurations-Four Breaker For Dual-Input Ups
Operation Figure 37 Maintenance bypass configurations—Four breaker for dual-input UPS Figure 38 Maintenance bypass configurations—Four breaker for dual-input UPS, No CB1 ® ™ Vertiv Liebert 225-600kVA Operation Manual... -
Page 39: Figure 39 Maintenance Bypass Configurations-Distributed Bypass, 1+N Multi-Module
Operation Figure 39 Maintenance bypass configurations—Distributed bypass, 1+N multi-module ® ™ Vertiv | Liebert 225-600kVA Operation Manual... -
Page 40: Startup-Single Module System
If the system has a different maintenance bypass operation, consult the provider of that system for operating procedures. The procedure assumes that the UPS installation inspection and initial startup were previously performed by Vertiv Liebert Services . An Vertiv-authorized representative must perform the initial ™ system startup to ensure proper system operation. -
Page 41: Startup Single Module System From Maintenance Bypass
Clear any faults before proceeding. NOTICE Risk of improper operation. Can cause equipment damage. ™ If a fault that has been cleared recurs, contact Vertiv Liebert Services . Do not continue. NOTICE Risk of improper operation. Can cause equipment damage. - Page 42 Remove the key from the lock for the Maintenance Bypass Breaker (MBB) to lock it open. Reinsert the key into the solenoid. Press Start Inverter. The load will be transferred to the UPS. ® ™ Vertiv Liebert 225-600kVA Operation Manual...
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Page 43: Load Transfer And Retransfer-Single Module System
If UPS bypass shutdown is required, open the Bypass Input Breaker (BIB). This breaker is external to the UPS; it may be in the Maintenance Bypass Cabinet. Open the BFB. Open CB1 (or the Rectifier Input Breaker [RIB] if the UPS is not equipped with CB1). ® ™ Vertiv | Liebert 225-600kVA Operation Manual... -
Page 44: Shut Down Single Module Ups System
Perform a Module Shutdown to remove power from the UPS module. Read all warnings in 5.0 - Maintenance before performing any maintenance on your Liebert NX UPS. These warnings and cautions must be observed during any work on the UPS. -
Page 45: Startup-1+N Multi-Module System With Maintenance Bypass Cabinet
The UPS module(s) and the load should be de-energized at the beginning of this procedure. All circuit breakers external to the Vertiv-supplied equipment must be operated by customer personnel. For initial startup, commissioning agents or authorized personnel should verify that all parallel cables are properly connected to the UPS units. -
Page 46: Transfer The Load From Ups To Bypass: 1+N System
Remove the key from the lock for the Maintenance Bypass Breaker (MBB) to lock it open. Reinsert the key into the solenoid. Select the Start Inverter icon on the touchscreen LCD of Module 1. Vertiv recommends starting with Module 1 and continuing in order when instructed to do so. -
Page 47: Load Transfer-1+N System-Remove One Ups Module From System (Collective)
NOTE The rectifier will start at this time. Do not proceed until the user LCD is operational. Clear any faults before proceeding. Do not continue if the UPS is displaying an Output Voltage Out Of Tolerance fault. Contact Vertiv ™... -
Page 48: Automatic Operations
UTOMATIC PERATIONS The Liebert NX UPS is designed to function unattended by an operator. The system control logic monitors the performance of the UPS, the availability of power sources and the current required by the critical load. The system control logic: •... -
Page 49: Automatic Transfers To Bypass (Overload Condition)
The UPS will initiate an automatic load transfer to the bypass line if an overload exceeds the current-versus-time curve of overload. If the UPS module shuts down due to an overload, the module will restart and automatically retransfer once the load is reduced to 100% or less. Vertiv Liebert Services can program other thresholds, such ™... -
Page 50: Automatic Retransfers To Ups
• Cyclic-type overloads, which occur up to five (range is zero to five) times in 60 minutes, are automatically returned to the inverter for each event including the Nth overload. NOTE The UPS can be set during initial commission to prevent automatic retransfers. Liebert Services can alter the UPS later to prevent automatic retransfers. ® ™ Vertiv Liebert 225-600kVA Operation Manual... -
Page 51: 3.0 Ups Messages: Status, Warning, Fault
UPS Messages: Status, Warning, Fault 3.0 UPS MESSAGES: STATUS, WARNING, FAULT The Liebert NX 225-600 generates three types of messages based on the severity of the condition. The severity of the message will be indicated in the display. • Status—The system is operating normally and no warning or alarm has occurred. - Page 52 Booster Runs from Battery The Booster/Charger is taking energy out of the battery 06-000 Status Inverter is off 06-001 Status Inverter is Turning on 06-002 Status Inverter is on 06-003 Status Inverter Stopped Due to Fault ® ™ Vertiv Liebert 225-600kVA Operation Manual...
- Page 53 Temporary Event Log Deleted due to 08-031 Status Data Corruption A File was Removed Due to Data 08-032 Status Corruption 08-033 Status Life Call in Progress LIFE is calling the life station ® ™ Vertiv | Liebert 225-600kVA Operation Manual...
- Page 54 Warning Parallel Bypass Failure 22-014 Warning Rectifier Input Switch Open 22-015 Warning Rectifier Mains Failure 22-016 Warning Rectifier Overload 22-017 Warning Wrong Phase Rotation 22-018 Warning DC Voltage Low 22-019 Warning Rectifier Overtemperature ® ™ Vertiv Liebert 225-600kVA Operation Manual...
- Page 55 Warning Inverter Overload Current limitation is active 26-031 Warning Inverter Overload KW Protection 26-032 Warning The Inverter is Off ..due to a shutdown command 27-009 Warning Output Switch is Open ® ™ Vertiv | Liebert 225-600kVA Operation Manual...
- Page 56 Fault E.P.O. 31-021 Fault Bypass Hardware Failure The bypass board needs to be replaced 31-022 Fault Bypass Hardware Failure 31-023 Fault Backfeed Protection Investigate the cause of the backfeed and reset the fault ® ™ Vertiv Liebert 225-600kVA Operation Manual...
- Page 57 There is no Battery Connected Connect the Battery 34-009 Fault Battery Switch Open Connect the battery The calculated battery rest time is now under the low battery 34-011 Fault Rest time exceeded signal time ® ™ Vertiv | Liebert 225-600kVA Operation Manual...
- Page 58 Fault Inverter DC/AC Desaturation Replace the PSDR boards 36-056 Fault Inverter DC/AC Desaturation 36-057 Fault Inverter DC/AC desaturation 36-058 Fault Battery Contactor is Defective Replace the PSDR boards 36-059 Fault DC Bus Undervoltage ® ™ Vertiv Liebert 225-600kVA Operation Manual...
- Page 59 39-030 Fault EPO Active 39-033 Fault Backfeed Protection Active 39-034 Fault Overtemperature 39-040 Fault SCR Gate Corrupt 39-041 Fault Output Overvoltage 39-042 Fault Output Undervoltage 39-043 Fault Output Frequency out of Limits ® ™ Vertiv | Liebert 225-600kVA Operation Manual...
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Page 60: 4.0 Connectivity
ONNECTION OINTS Table 5 gives details of the various combinations of connectivity solutions that can be used with the Liebert NX. Only one of the combinations may be used at a time. Other combinations may be possible. The interfaces in Table 5 can be found on the Liebert NX. -
Page 61: Available Selectable Input Contacts
Connectivity 4.2.1 Available Selectable Input Contacts NOTE These contacts must be programmed by an Vertiv customer engineer. Standby Generator Set (SGS) Bypass and Inverter both Off (See Note 3) Bypass Operation (See Note 1) Stop Battery Test (See Note 2) -
Page 62: Available Selectable Output Contacts
The logic for each output contact can be inverted. Each output contact can have a turn On delay of 0 to 60 seconds. Each output contact can have a turn Off delay of 0 to 60 seconds. ® ™ Vertiv Liebert 225-600kVA Operation Manual... -
Page 63: 5.0 Maintenance
Startup, UPS maintenance, DC source maintenance and training programs are available for the Liebert NX through your Vertiv sales representative. Warranties Contact Liebert Services if you have any questions regarding the warranty on your Liebert NX UPS or the batteries. ®... -
Page 64: Routine Maintenance
Inspect installations in new buildings more often, then extend the inspection period as experience dictates. All Liebert NX models have a replaceable air filter inside the front doors. These filters can be changed while the UPS is in operation. -
Page 65: Limited Life Components
Limited Life Components The Liebert NX has a design life well in excess of 10 years. Well-maintained units can continue to provide economic benefits for 20 years or more. Long-life components are used in the UPS wherever practical and cost- effective. -
Page 66: Battery Maintenance
• After replacing battery jars in a battery cabinet, replace the retaining straps that hold the jars in place on the shelves. This will limit accidental movement of the jars and connectors should the cabinet need to be repositioned or relocated. ® ™ Vertiv Liebert 225-600kVA Operation Manual... -
Page 67: Table 7 Battery Voltage, Nominal And Float
Contact the factory for information about charging lithium ion batteries. Power Connections: Check for corrosion and connection integrity. Inspect wiring for discolored or cracked insulation. Clean and/or retighten as required. Refer to torque specifications in Table 8. ® ™ Vertiv | Liebert 225-600kVA Operation Manual... -
Page 68: Table 8 Battery Retorque Values
If the UPS system uses a DC source other than a factory-supplied Matching Battery Cabinet, perform maintenance on the DC source as recommended in the DC source manufacturer’s maintenance manual, available on the manufacturer’s Web site. ® ™ Vertiv Liebert 225-600kVA Operation Manual... -
Page 69: Detecting Trouble
NOTE While Vertiv can provide typical guidelines, the responsibility for the proper breaker trip settings outside the Vertiv-manufactured UPS equipment resides with the owner. Contact Liebert Services at 1-800-LIEBERT for further information. -
Page 70: Ac Output Ground Fault Detection
UPS will be interrupted. The Liebert NX 225-600 is equipped with special circuitry to detect such faults and display a warning on the touchscreen LCD. The warning may also be communicated through a programmable output contact to third- party devices. -
Page 71: 6.0 Specifications
AULT ETECTION Vertiv offers battery DC ground fault detection solutions as an option for the Liebert NX 225-600kVA UPS. Some jurisdictions and customers require that there be a system to detect battery DC ground faults in ungrounded DC systems. Generally, this applies to DC systems that are field-wired to the UPS. This includes both battery and flywheel systems. -
Page 72: Environmental Conditions
Contact your Liebert Services representative for information about firmware upgrades. To determine the firmware version in your Liebert NX 225-600 UPS, go to display screen and press the Help button, then press About. The revision number will be displayed. -
Page 73: Table 10 Electrical Specifications
Capacity to Handle Step Load, % 0-100 or 100-0 Voltage Displacement, ° el 120° ±1° el (With Unbalanced Load) Compliance to FCC Class-A Standard Table 11 Physical specifications Liebert NX Model Size Physical Parameters and Standards, in (mm) Width 53.4 90.7 Depth 33.7 Height 78.6... -
Page 74: Appendixa - System Configuration
3. Control wiring and power wiring must be run in separate conduits. BIB - Battery Interface Board 4. Grounding conductors are recommended. U38-CA-1020 MBD - Module Battery Disconnect Rev. 1 K - Key Interlock System (optional) ® ™ Vertiv Liebert 225-600kVA Operation Manual... - Page 75 TECHNICAL SUPPORT / SERVICE Web Site www.vertivco.com Monitoring liebert.monitoring@vertivco.com 800-222-5877 Outside North America: +00800 1155 4499 Three-Phase UPS & Power Systems 800-543-2378 Outside North America: 614-841-6598 LOCATIONS United States 1050 Dearborn Drive P.O. Box 29186 Columbus, OH 43229 Europe Via Leonardo Da Vinci 8 Zona Industriale Tognana 35028 Piove Di Sacco (PD) Italy +39 049 9719 111...
- Page 76 © 2016 Vertiv Co. All rights reserved. Vertiv and the Vertiv logo are trademarks or registered trademarks of Vertiv Co. All other 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 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.
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