Liebert NX User Manual
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Liebert NX User Manual

40-200kva, 480v, 60hz
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Liebert
NX
UPS
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User Manual–40-200kVA, 480V, 60Hz

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Summary of Contents for Liebert NX

  • Page 1 Liebert ® ™ User Manual–40-200kVA, 480V, 60Hz...

  • Page 3: Table Of Contents

    Considerations in Moving the Liebert NX ........
  • Page 4 External Battery Cabinet Installation ......... . 24 4.3.1 Battery Cabinets.
  • Page 5 De-Energize the Liebert Nx 480 with Bypass Distribution Cabinet (BDC) ... . 100 11.6 Energize Nx 480 with Bypass Distribution Cabinet (BDC) ......100 11.7 Auto Restart .
  • Page 6 FIGURES Figure 1 Cabinet arrangement—Liebert NX units and battery cabinets......11 Figure 2 Cabinet arrangement—Liebert NX UPS, battery cabinets and Liebert NX bypass distribution cabinets .
  • Page 7 Figure 33 Liebert NX 160-200kVA main components—typical unit ....... 59...
  • Page 8 Electrical specifications, Liebert NX 160-200kVA ........
  • Page 9 Table 41 Cable size tightening torque at Liebert NX 80kVA UPS terminals..... . . 112 Table 42 Cable size tightening torque at Liebert NX 100kVA UPS terminals..... . 113 Table 43 Cable size tightening torque at Liebert NX 120kVA UPS terminals.
  • Page 10 viii...

  • Page 11: Important Safety Instructions

    SAVE THESE INSTRUCTIONS This manual contains important instructions that should be followed during installation of your Liebert NX UPS and ancillary equipment. 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 12 This unit is not designed for use in a residential area. Operation of this unit in a residential area may cause harmful interference that the user must correct at his own expense. ® ™ Liebert...
  • Page 13 WARNING Risk of electric shock. Can cause injury and death. The Liebert NX’s internal batteries are connected and energized even if the UPS is turned Off. To minimize the risk of injury, a properly trained and qualified service person should disconnect the batteries before any maintenance is performed on the unit.
  • Page 14 Risk of replacing battery with an incorrect type. Can cause property damage injury and death. Dispose of used batteries according to the instructions. When replacing batteries, replace with the same manufacturer and type, or equivalent. See your local Emerson representative for a list of approved batteries. ® ™ Liebert...

  • Page 15: Glossary Of Symbols

    Indicates caution followed by important instructions AC input AC output Requests the user to consult the manual Indicates the unit contains a valve-regulated lead acid battery PbH2SO4 Recycle DC voltage Equipment grounding conductor Bonded to ground AC voltage ® ™ Liebert...

  • Page 16: Introduction

    SmartAisle design approach. The Liebert NX supplies power that is free of the disturbances and variations in voltage and frequency common to utility power, which is subject to brownouts, blackouts, surges and sags. The Liebert NX utilizes the latest in high-frequency, double-conversion pulse width modulation technology and fully digital controls to enhance its reliability and increase the ease of use.

  • Page 17: Installation

    Installation NSTALLATION This section describes the Liebert NX environmental requirements and mechanical considerations that must be taken into account when planning the positioning and cabling of the UPS equipment. Because every site is unique, this section presents a guide to general procedures and practices that should be observed by the installing engineer, rather than step-by-step installation instructions.

  • Page 18: Storing For Delayed Installation

    74-80°F, (23-27°C). The Liebert NX UPS cooled by internal fans. Cooling air enters the unit through the front of the unit and is exhausted out the top. To permit proper air flow and prevent overheating, do NOT block or cover the ventilation openings or blow air down onto the unit.

  • Page 19: Special Considerations For Parallel Systems

    To move the UPS and optional battery cabinets: • The Liebert NX may be rolled on its casters when moving the unit a short distance. For longer dis- tances, move the UPS with a forklift or similar equipment to ease the relocation and to reduce vibration.

  • Page 20: Mechanical Considerations

    2.6.3 Cable Entry Cables can enter the Liebert NX from the top or bottom. Cable entry is made possible by removing a metal plate attached to the UPS. These plates are designed to allow the personnel to punch holes for fitting and securing the conduit.

  • Page 21: Optional Cabinets

    2.6.4 Optional Cabinets The Maintenance Bypass Cabinet must be cabled and bolted to the Liebert NX before the UPS and bypass cabinet are moved into their final position. Connect the input wiring to the Maintenance Bypass Cabinet ONLY after the units are connected and positioned.

  • Page 22: Figure 2 Cabinet Arrangement-Liebert Nx Ups, Battery Cabinets And Liebert Nx Bypass Distribution

    Installation Figure 2 Cabinet arrangement—Liebert NX UPS, battery cabinets and Liebert NX bypass distribution cabinets Liebert NX Liebert Bypass Battery Cabinet Distribution Cabinet Front of Units Liebert NX Liebert Bypass Battery Battery Battery Distribution Cabinet Cabinet Cabinet Cabinet Front of Units ®...

  • Page 23: Electrical

    WARNING Risk of electrical shock. Can cause injury and death. Before connecting input power to the Liebert NX, ensure that you are aware of the location and operation of the overcurrent protection devices that connect the UPS input/bypass supply to the power distribution panel.

  • Page 24: Ups Input Configuration

    3.1.2 UPS Input Configuration Figure 3 illustrates the Liebert NX in a split bypass (dual-input) configuration. In this configuration, the Static Bypass and the Maintenance Bypass lines are supplied from a separate feed from the Main input. Both sources must be protected externally with properly sized protective devices. By default, the unit ships with internal links installed between the bypass input and main input (Single Input configuration).

  • Page 25: Cable Connections

    The rectifier input, bypass and output are easily accessible from the front of the unit for installation. All require lug type terminations. They are connected to busbars on the front side of the Liebert NX and below the circuit breaker, as shown in Figure 3. These busbars are accessible when the front side panel is removed.

  • Page 26: Cabling Procedure

    The operations described in this section must be performed by authorized electricians or qualified technical personnel. If you have any difficulties, contact your local Emerson representative or Emerson Network Power Liebert Services. NOTE Hydraulic pressure pliers, combinative tools and piston ring pliers should be used to connect AC wiring.
  • Page 27 1. The transformers are delta/wye isolation transformers where the wye secondary’s are connected to the NX 480V UPS. 2. The individual transformer used to supply the Bypass of the NX 480V is solidly bonded to earth ground at the transformer.

  • Page 28: Control Cables

    • Emergency Power Off control (EPO) • Environmental parameter input interface • User communication (for data setting and user background monitor) ® • Liebert IntelliSlot interface • Modem interface • Temperature detect interface Figure 4 shows the relationship and connection between the monitoring (U2) board and other boards in the UPS.

  • Page 29: Figure 5 Auxiliary Terminal Block Detail (Monitoring Board)

    Electrical Connections Figure 5 Auxiliary terminal block detail (Monitoring Board) MODEM SNMP CARD Liebert IntelliSlot 2 Liebert IntelliSlot 1 J13 J21 J25 J26 J30 J10 Liebert IntelliSlot 3 BFP INV ACF Dry in NOTE: The black square () on each slot indicates Pin 1.

  • Page 30: Dry Contacts

    Electrical Connections Dry Contacts The UPS provides input dry contacts and output dry contacts. NOTE When operating the Liebert NX with dry contacts, ESD measures must be taken or the contacts may be damaged. 3.3.1 Input Dry Contacts There are several input dry contacts at the X3 slot.

  • Page 31: Battery Circuit Breaker Control Interface

    Main input fault relay. Normally closed. Open when main input is in fault; J25.4 ACF_C 5A, 250VAC/24 VDC NOTE All auxiliary cables of terminal must be double-insulated. The wire must be 600V, 18-16 AWG stranded for maximum runs between 82 and 197 feet (25-60m), respectively. ® ™ Liebert...

  • Page 32: Epo Input-Optional

    Normally Closed EPO – X2: 1,2, these terminals are supplied factory-linked on the monitor board and must remain installed if using NO contacts. NOTE All auxiliary cables of terminal must be double-insulated. The wire must be 600V, 18-16 AWG stranded for maximum runs between 82 and 197 feet (25-60m), respectively. ® ™ Liebert...

  • Page 33: Battery

    When replacing batteries, replace with the same manufacturer and type, or equivalent. See your Emerson representative for a list of approved batteries. Safety Special care should be taken when working with the batteries associated with the Liebert NX ™ system equipment. When all batteries are connected together, the battery terminal voltage may exceed 480V and is POTENTIALLY LETHAL.

  • Page 34: External Battery Cabinet Installation

    Any battery system should be installed by properly trained and qualified personnel. When installing an external battery cabinet that is NOT a Liebert NX battery cabinet, the customer must provide overcurrent protection. See Table 8 for sizing of protection devices.

  • Page 35: Connecting The Batteries

    4.3.2 Connecting the Batteries If the Liebert NX battery cabinets are installed on a raised floor, the battery power cables and circuit breaker control cables may be routed to the UPS cabinet via the floor of the cabinet (bottom entry).

  • Page 36: Connecting The Battery Cabinet To The Ups

    Verify that the battery area has adequate ventilation and battery operating temperature complies with the manufacturer's specifications and with all applicable national and local codes. If you have any questions concerning batteries, battery racks or accessories, contact Liebert Services at 1-800-543-2378.

  • Page 37: Bcb Shunt Trip

    Battery Installation BCB Shunt Trip The Liebert NX battery cabinet has the shunt trip installed in the circuit breaker. When a DC ground fault (using the optional DC Ground Fault kit), a battery overtemperature or EPO is activated, the shunt trip will open the circuit breaker.

  • Page 38: Options

    LBS will operate normally without an extra LBS control box or interface box. The LBS port is X4 on the Parallel Board (M3). The Parallel Board is on the interior of the Liebert NX, above and left of the power electronics; see Figures 30 and 33.

  • Page 39: Figure 13 Load Bus Synchronization Cable Connection With Multi-Module Systems

    X2-1 X2-2 X2-1 X1-1 X1-2 X1-1 X1-2 X1-1 X1-2 X1-1 X1-2 Parallel System I Parallel System II The LBS function is activated with configuration software; when the LBS takes effect, the graphic LCD will display “LBS active.” ® ™ Liebert...

  • Page 40: Configuring Parallel Sbasystem Operation

    5.2.2 Features of Parallel System • The controls for parallel UPS module operation are standard in the Liebert NX, and the configu- ration can be set up by changing the settings in configuration software. • It is easy to install the parallel cables in a ring, providing high reliability and redundancy. And the intelligent paralleling logic provides the user with maximum flexibility.

  • Page 41: Figure 15 Paralleling Cabinet With Input And Bypass Circuit Breakers

    RIB 4 IOB 4 LDB = Load Distribution Breaker Figure 16 Paralleling cabinet with input, bypass and distribution circuit breakers 480V, 3W System Input Liebert NX UPS (40-200 kVA) 480V, 3W Bypass Output LDB 1 Static User Supplied Switch Plug-In Output...

  • Page 42: Operating Principles

    UPS. • 40-80kVA Liebert NX units can be installed in parallel with 80-120kVA Liebert NX units. • 80-120kVA Liebert NX units can be installed in parallel with 160-200kVA.

  • Page 43: Cabinet Installation

    Parallel Control Cables Parallel System Control Cables Make the connections listed below on the parallel logic board (M3) inside the Liebert NX. (See Figure 30 for the location of the parallel logic board): Shielded and double-insulated control cables, available in lengths of up to 100 feet (30m), must be interconnected in a ring configuration between UPS modules as shown below.

  • Page 44: Figure 18 Auxiliary Dry Contact Cables For Output Breaker In Multi-Module System

    X3 on the Parallel Logic Board (M3). See Figure 18. Figure 18 Auxiliary dry contact cables for output breaker in multi-module system CAUTION The auxiliary control wire must be installed to ensure proper operation of the system. NOTE For startup procedure, 11.2 - UPS Startup. ® ™ Liebert...

  • Page 45: Emergency Power Off (Epo)

    The external emergency stop facility is identical to that described for the single unit installation— that an individual emergency stop button is provided for each unit. Figure 19 Connecting EPO push button SINGLE MODULE Liebert NX Monitor Board EPO_NO +12V +12V...

  • Page 46: Ups Specifications

    UPS Specifications UPS S PECIFICATIONS These specifications describe requirements for the Liebert NX UPS. Conformity and Standards The UPS has been designed to conform to the following standards: • UL Standard 1778 • CSA 22.2, No. 107.1 • FCC Part 15, Class A •...

  • Page 47: Ups Electrical Characteristics

    Maximum Recommended Lug (Thomas & Betts Part #) Nominal Maximum Unit Output Output Device Bolt Compression Mechanical Rating Current Current Rating Size 1-Hole 1-Hole 54140 ADR35 54145-TB ADR35 54155-TB ADR35 54110 ADR35 54112 31015 54174 31015 256-30695-886 31015 ® ™ Liebert...

  • Page 48: Input Rectifier

    Input voltage window with derating Input Voltage Window Percentage Inverter Load, Charger Load, (L-L Voltage) of Nominal Percentage Percentage 432VAC to 552VAC 100% 100% 90-115 431VAC to 384VAC 100% 80-89 383VAC to 360VAC 100% 75-79 359VAC to 288VAC 60-74 ® ™ Liebert...

  • Page 49: Dc Intermediate Circuit

    UPS Specifications Table 11 Liebert-approved replacement batteries Battery Models Manufacturer Supplied 12HX205FR 12HX300FR Enersys 12HX330FR 12HX400RF 12HX505FR 45HR2000 24HR3000 East Penn 27HR3500 31HR4000 31HR5000 UPS12-100MR UPS12-150MR UPS12-210MR C&D UPS12-300MR UPS12-400MR UPS12-490MR UPS12-540MR 6.4.2 DC Intermediate Circuit Table 12 DC intermediate circuit...

  • Page 50: Inverter Output

    Bypass overload 111% to 125%: 10 Minutes capacity (all ratings) 126% to 150%: 1 Minute 1000%: 100 Milliseconds See Table 8 for current ratings. Bypass frequency synchronization range setting should be wider than bypass frequency shift range. ® ™ Liebert...

  • Page 51: Lbdc

    Rev. 3 Normal (UPS) Mode While the Liebert BDC is in Normal mode (MBB open; BIB/MIB closed), the UPS is supplying the connected load with continuous, high-quality AC power. In this mode of operation, the load is protected by the UPS.

  • Page 52: Bypass Mode

    Locating the Cabinet This Liebert BDC may be mounted to the left of the UPS or installed as a stand-alone unit. In either case, ensure that the unit is in a well-ventilated area and that there is clearance for access to the switches and cable connections as required by national and local codes.

  • Page 53: Input/Output Wiring

    5. Locate UPS input and output cables and access panel to UPS on lower right side. NOTE If the Liebert BDC is not to be bolted to the UPS, use either top or bottom access plate. 6. Connect the system ground cable between the Liebert BDC and UPS and tighten the connections to 240lb-in.

  • Page 54: Figure 21 Liebert Bdc Connection To Ups

    ™ Liebert BDC Figure 21 Liebert BDC connection to UPS NOTES 1. All Liebert-supplied cable must be repositioned prior to and while the cabinets are being placed in their final installed location. 2. All interconnection hardware supplied by Emerson ®...

  • Page 55: Figure 22 Liebert Bdc Connection To Liebert Nx

    ™ Liebert BDC Figure 22 Liebert BDC connection to Liebert NX NOTE Install jumper on TB1 pins 4 and 5. For startup procedure, see 11.2 - UPS Startup. ® ™ Liebert...

  • Page 56: Table 17 Circuit Breaker Schedule - Main Circuit Breaker

    ™ Liebert BDC Table 17 Circuit breaker schedule - Main circuit breaker Interrupting Voltage In Vendor Frame Amps Trip Amps Model Number Rating AIC 208V 250A T4S060TW-S24 100K 240V 250A T4S050TW-S24 100K 380V 250A T4S030TW-S24 400V 250A T4S030TW-S24 415V 250A...

  • Page 57: Table 18 Main Panelboard Circuit Breaker

    ™ Liebert BDC Table 17 Circuit breaker schedule - Main circuit breaker (continued) Interrupting Voltage In Vendor Frame Amps Trip Amps Model Number Rating AIC 208V 400A 600A T5S600BW-S24 100K 240V 250A 500A T5S500BW-S24 100K 380V 250A 300A T5S300BW-S24 400V...

  • Page 58: Table 20 Subfeed Circuit Breaker

    ™ Liebert BDC Table 20 Subfeed circuit breaker Voltage Frame Trip Model Interrupting Vendor Type Amps Amps Number Rating AIC 15-300 208V FIX MTD 250A 100A T4N100TW 15-300 208V FIX MTD 250A 125A T4N125TW 15-300 208V FIX MTD 250A 150A...

  • Page 59: Bolting Cabinets Together

    9. Clearance of 36" (914mm) minimum is recommended at front and rear for service access. 2. Using supplied hardware, bolt the cabinets together. The bolts may be inserted from either the UPS side or from the Liebert BDC side, whichever is more convenient. ® ™...

  • Page 60: Figure 24 Outline Drawing, Liebert Bdc

    ™ Liebert BDC ™ Figure 24 Outline drawing, Liebert BDC , 47" cabinet 47" (1194mm) R 25.3" (643mm) x R 25.3" (643mm) x 180° Door Swing° 180° Door Swing° Output Conduit Plates 11.9" x 15.7" (302 x 400mm) 36.4" 33.8"...

  • Page 61: Installation Drawings

    Installation Drawings NSTALLATION RAWINGS The diagrams in this section illustrate the key mechanical and electrical characteristics of the Liebert NX UPS System cabinets. Figure 25 Outline drawing, Liebert NX 40-120kVA Power Cable Entry 25.5 (648) 3.7 x 22.8 (94x 580) 23.6 (600)

  • Page 62: Figure 26 Terminal Details, 34" Battery Power Pack System For Liebert Nx 480V Ups

    Installation Drawings Figure 26 Terminal details, 34" battery power pack system for Liebert NX 480V UPS Transformer for Alber Detail B monitoring system (optional) Fuse input Alber monitoring system (optional) 2.3 (59) Terminal Block (-) Negative Aux. Contacts TOP VIEW DETAIL B Ø...

  • Page 63: Figure 27 Liebert Nx 80-120Kva Dimensions-Front And Left Side

    Installation Drawings Figure 27 Liebert NX 80-120kVA dimensions—front and left side Table 25 UPS terminal specifications Utility Configurations Breaker Size, Amps Bolt Shaft Torque Unit Rating Size lb-in (N-m) 80-120 88 (10) Source: U3819611, Rev. 0 ® ™ Liebert...

  • Page 64: Figure 28 Liebert Nx 160-200Kva Dimensions-Front And Left Side

    Installation Drawings Figure 28 Liebert NX 160-200kVA dimensions—front and left side 39.0 (990) to Display 38.5 (978) 48.9 (1242) 61.9 (1573) Power Cable Entry Low Voltage 14 x 13 (355x330) Entry 5.1 x 3.9 (130x100) .8 (19) 2.7 (68) Front .9 (23)

  • Page 65: Figure 29 Liebert Nx 160-200Kva Dimensions-Front And Left Side

    Installation Drawings Figure 29 Liebert NX 160-200kVA dimensions—front and left side Ø .39 (10) Typ Ground (25) (150) 20.3 10.1 (516) (258) (203) DETAIL A 10.6 Input/Output/Bypass (268) FRONT LOWER RIGHT SIDE FRONT Ø .39 (40) (10) Typ Right Front Corner...

  • Page 66: Figure 30 Liebert Nx 40-120Kva Main Components-Typical Unit

    Installation Drawings Figure 30 Liebert NX 40-120kVA main components—typical unit Parallel Board Monitor Board Intellislot Communication Ports Input Breaker (CB1) Replaceable Bypass Breaker Air Filters (CB2) Maintenance Bypass Breaker (CB3) Output Breaker (CB5) CB1 CB2 Output Bus DC Bus Main Input...

  • Page 67: Figure 31 Liebert Nx 160-200Kva Dimensional View-Front And Left Side

    Installation Drawings Figure 31 Liebert NX 160-200kVA dimensional view—front and left side 1239mm (48.8") 979mm (38.5") 2000mm (78.7") 1000mm (39.4") 610mm (24") 590mm 23.2" FRONT VIEW LEFT VIEW ® ™ Liebert...

  • Page 68: Figure 32 Liebert Nx 160-200Kva Dimensions Continued-Top And Bottom View

    Installation Drawings Figure 32 Liebert NX 160-200kVA dimensions continued—top and bottom view 1239mm (48.77") 1110mm (43.72") 972mm (38.28") 842mm (33.14") 355mm (13.99") 330mm BOTTOM VIEW (12.99") 1239mm (48.77" Front of UPS TOP VIEW Front of UPS Detail A ® ™...

  • Page 69: Figure 33 Liebert Nx 160-200Kva Main Components-Typical Unit

    Installation Drawings Figure 33 Liebert NX 160-200kVA main components—typical unit Parallel Board Monitor Board Intellislot Communication Ports Input Breaker (CB1) Replaceable Bypass Breaker Air Filters (CB2) Maintenance Bypass Breaker (CB3) Output Breaker (CB5) DC Bus Main Input Bypass Output Ground Input Bus ®...

  • Page 70: Figure 34 Liebert Nx 40-120Kva Cable Connections

    Installation Drawings Figure 34 Liebert NX 40-120kVA cable connections NOTES 1. All dimensions are millimeters (in.). (23.6") 2. Top and bottom cable entry available through removable access plates. Remove, punch to accommodate conduit size and replace. 3. Control wiring and power wiring must be run in separate conduit.

  • Page 71: Figure 35 Liebert Nx 160-200Kva Cable Connections

    Installation Drawings Figure 35 Liebert NX 160-200kVA cable connections 65mm (2.56") FRONT VIEW (door removed) DC Bus 224mm (8.83") Main Input O 10mm (0.394") 80mm Output 80mm (3.15") 80mm Bypass (3.15") (3.15") Input Bus (Dual Input) DETAIL A ® ™...

  • Page 72: Figure 36 Outline Drawing, 33" Battery Power Pack System, Single Cabinet

    NOTE: If floor stand is used the weight of the unit must be supported under all casters. Mounting holes same spacing front and rear. 13. Battery-support tray connects to the front of the cabinet with the support brackets. Without the support, the battery may fall out of the cabinet. U3819204 ® ™ Liebert...

  • Page 73: Figure 37 Terminal Details, 33" Battery Power Pack System, Single Cabinet Liebert Nx

    Installation Drawings Figure 37 Terminal details, 33" battery power pack system, single cabinet Liebert NX (-) Negative (2.32) Transformer For Alber Monitoring (0.30) System (Optional) 76.2 Fused Input for Alber Monitoring System (Optional) Terminal Block DETAIL B Aux. Contacts (+) Positive...

  • Page 74: Figure 38 Outline Drawing, 49" Battery Power Pack System, Single Cabinet

    509mm (20") 271mm FrontFrame (10.7") 323mm Rear Frame (12.7") typ. 1616mm Rear (63.6") 482mm 482mm 138mm (19.0") (19.0") typ. (5.4") typ. typ. SECTION A-A TOP VIEW (Plan View) (Door Open) 1140mm (44.9") typ. 841mm (33.1") typ. LEVELER SPACING ® ™ Liebert...

  • Page 75: Figure 39 Terminal Details, 49" Battery Power Pack System

    Figure 39 Terminal details, 49" battery power pack system Negative Positive Positive Detail A Ground Transformer for Alber Monitoring System (Optional) Terminal Block / Aux Contacts Fused Input Top View for Alber Monitoring Detail B System (Optional) (without BCB Cover Plate) ® ™ Liebert...

  • Page 76: Figure 40 Liebert Nx 160-200Kva Ups To 49" Battery Cabinet Interconnection

    Installation Drawings Figure 40 Liebert NX 160-200kVA UPS to 49" battery cabinet interconnection NX 160-200KVA UPS Module Front View 49" Battery Cabinet Right-Side Views NOTES: 1. All cables must be repositioned prior to and while setting the cabinets in their installed location.

  • Page 77: Figure 41 Liebert Nx 40-120Kva Ups To 33" Battery Cabinet Interconnection

    Installation Drawings Figure 41 Liebert NX 40-120kVA UPS to 33" battery cabinet interconnection NOTES: 1. All cables must be repositioned prior to and while setting the cabinets in their installed location. 2. Refer to the individual drawing of each piece of equipment for additional details.

  • Page 78: Figure 42 Outline Drawing, Liebert Nx 480V 33" Parallel Cabinet

    Installation Drawings Figure 42 Outline drawing, Liebert NX 480V 33" parallel cabinet (33.2) (38) 2000 (78.7) Front Right Side NOTE: 1. All dimensions are in millimeters (in). 2. Eight-inch minimum clearance above unit required for air exhaust. 3. Keep cabinet within 15 degrees of vertical while handling.

  • Page 79: Figure 43 Outline Drawing, Liebert Nx 480V 49" Parallel Cabinet

    Installation Drawings Figure 43 Outline drawing, Liebert NX 480V 49" parallel cabinet 1240 (48.8) (38) 2000 (78.7) Front Right Side NOTE: 1. All dimensions are in millimeters (in). 2. Eight-inch minimum clearance above unit required for air exhaust. 3. Keep cabinet within 15 degrees of vertical while handling.

  • Page 80: Figure 44 Liebert Nx 480V Paralleling Cabinet With Input And Bypass Circuit Breakers, Main

    Installation Drawings Figure 44 Liebert NX 480V paralleling cabinet with input and bypass circuit breakers, main components System Input System Output Tie Breaker UPS Output Breaker Input Breakers Kirk - Key Fuse Ground Disconnect Busbar System Bypass Tie Breaker System...

  • Page 81: Figure 45 Liebert Nx 480V Paralleling Cabinet Main Components-Input, Bypass And Distribution

    Installation Drawings Figure 45 Liebert NX 480V paralleling cabinet main components—input, bypass and distribution circuit breaker configuration System Input UPS Input Ground Bypass Breaker Front Front Output With Covers Without Covers Distribution Bypass Breaker Rear Output Rear Without Covers With Covers ®...

  • Page 82: Figure 46 Main Component Location Drawing Liebert Nx 480V, Cb2, Cb3, Cb4 Configurations

    Installation Drawings Figure 46 Main component location drawing Liebert NX 480V, CB2, CB3, CB4 configurations System Bypass Output Breakers Kirk-Key Fuse Ground Disconnect Busbar System Output FRONT Busbars ® ™ Liebert...

  • Page 83: Figure 47 Liebert Nx 480V 40-120Kva Ups To Paralleling Cabinet Interconnection-Configuration

    Installation Drawings Figure 47 Liebert NX 480V 40-120kVA UPS to Paralleling Cabinet Interconnection—Configuration BB0, FB0, KB0 parallel connection to Liebert NX G1-G4 H1-H4 B1-B4 G1-G4 H1-H4 FRONT Without Covers C1-C4 B1-B4 FRONT E1-E4 Door Open C1-C4 E1-E4 From Conductors Ph A, B, C - System...

  • Page 84: Figure 48 Interconnecting Details For Liebert Nx 40-120Kva Ups To Paralleling Cabinet With Input

    Installation Drawings Figure 48 Interconnecting details for Liebert NX 40-120kVA UPS to paralleling cabinet with input, bypass and distribution circuit breakers G1-G4, H1-H4 B1-B4 E1-E4, F G1-G4, H1-H4 FRONT Without Covers C1-C4 B1-B4 E1-E4 FRONT With Door Open C1-C4 REAR...

  • Page 85: Figure 49 Lineup Detail-Configuration Cb2, Cb3, Cb4 Parallel Connection To Liebert Nx

    Installation Drawings Figure 49 Lineup detail—Configuration CB2, CB3, CB4 parallel connection to Liebert NX G1-G4 H1-H4 C1-C4 E1-E4 G1-G4 H1-H4 C1-C4 FRONT B1-B4 E1-E4 Without Covers FRONT Door Open From Conductors UPS #1-UPS #4 Module AC B1-B4 Utility Ph A, B, C - UPS Inputs...

  • Page 86: Figure 50 Line-Up Detail, Bolt Together Description, 40-120 Kva Liebert Nx

    Installation Drawings Figure 50 Line-up detail, bolt together description, 40-120 kVA Liebert NX LEFT SIDE LEFT SIDE Without Exterior Panels Isometric View NOTES: (38 in.) 1. All dimensions are in millimeters (inches) 2. All cables should be routed before bolting cabinets together.

  • Page 87: Operation

    Liebert’s NX provides continuous, high-quality AC power to your business-critical equipment, such as telecommunications and data processing equipment. The Liebert NX UPS supplies power that is free of the disturbances and variations in voltage and frequency common to utility power, which is subject to brownouts, blackouts, surges and sags.

  • Page 88: Bypass Supplies

    Normal mode, with the rectifier powering the critical load. Bypass Mode When the Liebert NX is in bypass mode, the load is directly supported by utility power and is without battery backup protection. The Liebert NX’s inverter static switch and bypass static switch will shift the load from the inverter...
  • Page 89 For maintenance or repair, the Liebert NX may be operated in maintenance mode. To place the Liebert NX in maintenance mode, the load must be transferred to bypass and the inverter must be turned off. When those conditions are met, the CB3 may be turned on and the UPS may be shut down, permitting disconnecting the batteries for maintenance.

  • Page 90: Operator Control And Display Panel

    ISPLAY ANEL 10.1 Operator Control Panel The control panel and LCD on the front of the Liebert NX lets the operator: • turn the UPS On or Off • transfer into the various operating modes • silence alarms • check the status of the UPS and its batteries, including all measured parameters, events and alarms The main areas of the control panel are shown below in Figure 52 and detailed in Figure 53.

  • Page 91: Mimic Display Indicators

    Status indicator HELP The current operational status of the Liebert NX is indicated by the color of the indicators—green, amber or red—and whether they are ON (solid), flashing or OFF. Table 27 provides a guide to interpreting the various states of the indicators.

  • Page 92: Control Buttons

    Table 28. NOTE To activate a button properly, press and hold until you hear a short beep—about two seconds. Figure 55 Location of control buttons Button cover EPO button Liebert NX 2007-01-06 09:20:37 S ingle 80kV A-3X 3 Norm al...

  • Page 93: Audible Buzzer

    • Continuous - the system has a serious fault If the buzzer makes no sound, the system may be operating properly, or an alarm may have been silenced manually. Figure 56 Buzzer location Liebert NX 2007-01-06 09:20:37 80kV A-3X 3...

  • Page 94: Navigation Keys

    The navigation keys on the front panel—F1 through F4 and Help—are used to access the LCD to view the current status and other information about the Liebert NX. Navigation key icons on the LCD appear above each key to indicate its operation (see Table 29). The keys are “soft keys”...

  • Page 95: Lcd Menus And Data Items

    • Command - start or stop a battery maintenance test, battery capacity test or system test • Version - view firmware versions for the inverter, rectifier and software display board and the model information for the UPS Figure 58 shows a menu tree of the options available from the LCD menus. ® ™ Liebert...

  • Page 96: Figure 58 Menu Tree

    TX Output L-L voltage (V) Line-line voltage Sout (kVA) Sout: Apparent power Pout (kW) Pout: Active power Load Qout (kVAR) Qout: Reactive power Loadlevel % The percent of the UPS rating load Crest factor Output current Crest Factor ® ™ Liebert...
  • Page 97 Callback times sets the number of times a number is redialed to send an alarm notification. When Liebert IntelliSlot 1 Communication mode is Modem, this is the first Phone No.1 phone number to be dialed (to send an alarm notification).

  • Page 98: Language Selection

    • Press the F4 (enter) key to accept the language selection. • Return to the main menu by repeatedly pressing F1 (ESC) as needed; all text on the LCD will now be displayed in the selected language. Figure 59 Language selection 2007-01-12 12:30:36 Liebert NX Single Normal 80KVA-3X3 Battery History...

  • Page 99: Figure 60 Set Date And Time

    Operator Control and Display Panel Figure 60 Set date and time 2007-01-12 12:30:36 Liebert NX Single Normal 80KVA-3X3 Command Language Setting LCD contrast Date format Y/M/D M/D/Y D/M/Y Y/M/D Date & Time 2007-01-12 12:30:36 Input disconnect closed 01-12 12:30 Output disconnect closed...

  • Page 100: 10.11 Ups Status Messages

    Operator Control and Display Panel 10.11 UPS Status Messages The Liebert NX displays status changes as they occur in the current status window of the LCD, then stores that data in the history log, as shown in Figure 61. • Current Status Window: The status messages are displayed chronologically and include the date and time of the events.

  • Page 101: 10.12 Types Of Lcd Screens

    10.12.2Default Screen After the UPS has powered up and completed a self-test, the output screen appears, as shown in Figure 63. This window is the default screen. Figure 63 Default screen 2007-01-12 12:30:36 Liebert NX Single Normal 80KVA-3X3 Main Bypass...

  • Page 102: Ups Help Screen

    10.12.4Screen Saver Window If there has been no interaction with the Liebert NX LCD for 2 minutes, the screen saver window appears. It remains on the LCD for 2 minutes, then the screen will go dark. The LCD will become active again when any key is pressed.

  • Page 103: 10.13 Pop-Up Windows

    The Liebert Battery will be depleted, NX asks for confirmation before the test is started, as shown at right. Confirm or cancel • To confirm the choice and begin the battery capacity test, press the F4 (Enter) key and the pop-up window disappears.

  • Page 104: Operating Instructions

    11.1 Liebert NX Operating Modes The Liebert NX can operate in any of four modes, as shown in Table 32. This section provides instructions on switching between modes, resetting the UPS, switching the inverter On and Off and performing other operations.

  • Page 105: 11.1.1 Circuit Breakers

    11.2 UPS Startup The Liebert NX must be fully installed and commissioned before startup, and external power isolators must be closed. Once those general conditions are met, the UPS may be started. 11.2.1 Startup Procedure To start the UPS from a fully powered-down condition: 1.
  • Page 106 UPS will transfer from bypass to inverter, the bypass indicator will turn off and the inverter and load indicators will turn on. The UPS is operating normally. The UPS Mimic display indicators will: Indicator State Rectifier indicator Green Battery indicator Bypass indicator Inverter indicator Green Output indicator Green Status indicator Green ® ™ Liebert...

  • Page 107: 11.2.2 Verify Switching Between Operation Modes

    11.2.2 Verify Switching Between Operation Modes Switch from Normal Mode to Battery Mode • Open CB1 to enter battery mode. This breaks the utility connection to the Liebert NX. To return to normal mode, close CB1 after a few seconds. The rectifier will restart automatically after 10 seconds and resume feeding power to the inverter.

  • Page 108: Partially De-Energize The Liebert Nx 480 With Internal Maintenance Bypass

    4. Press the EPO (Emergency Power Off) button at the UPS front panel of this UPS module only. This will disable further Rectifier, Inverter, Static Switch and Battery operation. This will not affect the manual maintenance bypass power switch. If a Liebert NX battery cabinet is connected, the battery circuit breaker will shunt trip open.

  • Page 109: Partially De-Energize The Liebert Nx 480 With Bypass Distribution Cabinet (Bdc)

    Risk of electrical shock and arc flash. Can cause property damage, injury and death. Even with the UPS in maintenance bypass and Off, portions of the Liebert NX system are still energized. Service must be performed by properly trained and qualified personnel only.

  • Page 110: De-Energize The Liebert Nx 480 With Bypass Distribution Cabinet (Bdc)

    Risk of improper operation. Can cause property damage from loss of power to connected load. Failure to close the MBB will interrupt power to the load. The load equipment is not protected from normal supply aberrations when the Liebert NX is operating in the maintenance bypass mode.

  • Page 111: Auto Restart

    • after the “Auto Recovery after EOD Delay Time” expires (the default delay is 10 minutes) During the auto recovery delay, the Liebert NX will be charging its batteries to provide a safety margin for equipment shutdown if input power fails again.

  • Page 112: 11.10 Battery Protection

    11.10 Battery Protection 11.10.1Battery Undervoltage Pre-Warning Before the end of discharge, the Liebert NX displays a Low Battery pre-warning. After this pre- warning, the battery has the capacity for 5 minutes discharging with full load (default time). The Liebert NX can be user-configured to display this warning from 3 to 60 minutes before end-of- discharge.

  • Page 113: Figure 67 Typical Parallel System Block Diagram With Common Input Supply, With Separate Batteries

    Operating Instructions Figure 67 Typical parallel system block diagram with common input supply, with separate batteries and optional output / bypass distribution panel 480V, 3W System Input Liebert NX UPS (40-200 kVA) 480V, 3W Bypass Output LDB 1 Static User Supplied...

  • Page 114: Inserting One Module Into A Multi-Module System

    8. Check that no “Warning” message is displayed in the top right corner of the LCD and that the indicators have the status shown below. # LED LED Function Status Rectifier indicator Green Battery indicator Bypass indicator Inverter indicator Green Output indicator Green Alarm indicator The UPS is now operating in NORMAL mode. ® ™ Liebert...

  • Page 115: Shutdown Procedure-Complete Ups And Load Shutdown

    The operations described in this section must be performed by authorized electricians or qualified technical personnel. If you have any difficulty, call 1-800-LIEBERT for assistance. Check the input and output wiring of each UPS module. Ensure that the phase rotation sequence of the main inputs and the bypass inputs and outputs of each UPS module are the same.

  • Page 116: Options

    SNMP, IGMnet, Modbus or Jbus. Other cards provide dry contact signals for external signaling of operating status. The Liebert IntelliSlot communication ports may be installed or removed while the Liebert NX is operating.

  • Page 117: 12.1.4 Communication And Monitoring

    (Reserved) IntelliSlot. 12.1.5 Configuring Baud Rates The default baud rate for Liebert IntelliSlot cards is 9600. To communicate with the Liebert OCWEB-LB, Modbus/Jbus or the adapters to permit using Liebert MultiLink, the baud rate must be set to 2400. To change the baud rate (refer to Table 33): 1.

  • Page 118: Figure 69 Liebert Intellislot ™ Web Card Display

    AS/400 computers (additional cable required) and other relay contact monitoring systems. The relay card is rated for 24 VAC/DC at 1A and supported in any of the three Liebert IntelliSlot bays on the Liebert NX .Refer to the Liebert Intellislot Relay Card user manual, SL-23211, for pin and...

  • Page 119: Lbs Mode-Load Bus Synchronization

    UPS operation On Battery and Low Battery condition. A typical application is to allow a maximum of four computer systems to simultaneously monitor the status (e.g., utility power failure-low battery) of a single UPS. This card is supported in any of the three Liebert IntelliSlot bays on the Liebert NX ®...

  • Page 120: Specifications And Technical Data

    40 (4.5) UPS12-150MR 25 (2.8) UPS12-210MR 25 (2.8) UPS12-300MR 110 (12.4) UPS12-350MR 110 (12.4) UPS12-400MR 110 (12.4) UPS12-490MRLP 110 (12.4) UPS12-540MR 110 (12.4) HX300 60 (6.8) HX330 60 (6.8) HX400 60 (6.8) HX500 60 (6.8) HX540 60 (6.8) ® ™ Liebert...

  • Page 121: Cable Lengths: Floor To Connection Point Inside Ups

    To help calculate the total cable length required, refer to Table 36 for the distance from the floor to selected connection points inside the Liebert NX. Determine the cable length required to reach the Liebert NX, then add the appropriate length from the table and adequate slack for repair and maintenance.

  • Page 122: Cable Size And Tightening Torques

    845 (33.2) 965 (38) 2000 (78.7) 13.3 Cable size and tightening torques Table 39 Cable size tightening torque at Liebert NX 40kVA UPS terminals Cable Size Torque to Tighten (Copper Wire Only) Terminal Bus & Lug Body Bus Type Main Input...

  • Page 123: Table 42 Cable Size Tightening Torque At Liebert Nx 100Kva Ups Terminals

    2-4/0 26 N-m (Dual Input) Output 2-4/0 26 N-m Table 46 Cable size tightening torque at Liebert NX 480V Battery Cabinet DC input bus terminals Cabinet Cable Size Torque to Tighten Rating (Copper Wire Only) Terminal Bus and Lug Body...

  • Page 124: Battery Run Times

    Scalable to 200kVA External Battery Cabinet Rated Output, kVA Rated Output, kVA Rated Output, kVA Type Quantity HX205FR HX300FR HX330FR HX400RF HX500FR HX205FR HX300FR HX330FR HX400RF HX500FR HX205FR HX300FR HX330FR HX400RF HX500FR HX205FR HX300FR HX330FR HX400RF HX500FR ® ™ Liebert...

  • Page 125: Table 48 C&D Dynasty Battery Run Times In Minutes

    Rated Output, kVA Type Quantity UPS12-100MR UPS12-150MR UPS12-210MR UPS12-300MR UPS12-350MR UPS12-400MR UPS12-490MR UPS12-540MR UPS12-100MR UPS12-150MR UPS12-210MR UPS12-300MR UPS12-350MR UPS12-400MR UPS12-490MR UPS12-540MR UPS12-100MR UPS12-150MR UPS12-210MR UPS12-300MR UPS12-350MR UPS12-400MR UPS12-490MR UPS12-540MR UPS12-100MR UPS12-150MR UPS12-210MR UPS12-300MR UPS12-350MR UPS12-400MR UPS12-490MR UPS12-540MR ® ™ Liebert...
  • Page 126 Specifications and Technical Data ® ™ Liebert...

  • Page 127: Messages

    The UPS can recover automatically. Check the environment and ventilation. Charger Fault The charger has a fault. Contact Liebert Services at 800-543-2378 for assistance. Control Power 1 has failed or has been lost. Contact Liebert Services at 800-543-2378 for Control Power 1 Fail assistance.
  • Page 128 Contact Liebert Services at 800-543-2378 for assistance. At least one of the cooling fans has failed. Contact Liebert Services at 800-543-2378 for Fan Fault assistance. At least one of the static switches of inverter side is open or short circuit. This fault is locked until Inverter STS Fail power off.
  • Page 129 (if applicable). The current of inverter IGBT is over limit. If the fault will not reset, contact Liebert Services at Inverter Overcurrent 800-543-2378 for assistance.
  • Page 130 The LBS setting is active. The UPS is acting as an LBS master or slave in a dual bus LBS Active configuration. Battery ground fault from dry contact signal. Contact Liebert Services at 800-543-2378 for Battery ground fault assistance. Inverter turned On...
  • Page 131 The inverter firmware is not compatible with the rectifier firmware. Fan power fail Fan power has failed Keyboard has a fault. Check the cable between keyboard with U2 board. Contact Liebert Keyboard fault Services at 800-543-2378 for assistance. An invalid kVA has been configured in unit.Contact Liebert Services at 800-543-2378 for KVA Invalid assistance.
  • Page 132 +39 049 9719 111 Fax: +39 049 5841 257 While every precaution has been taken to ensure the accuracy and completeness of this literature, Liebert Corporation assumes no Asia responsibility and disclaims all liability for damages resulting from use of 29/F, The Orient Square Building this information or for any errors or omissions.

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