Emerson Liebert EXM User Manual
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Emerson Liebert EXM User Manual

60-100kva, 50/60hz
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User Manual–60-100kVA, 50/60Hz

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Summary of Contents for Emerson Liebert EXM

  • Page 1 Liebert ® ™ User Manual–60-100kVA, 50/60Hz...

  • Page 3: Table Of Contents

    Considerations in Moving the Liebert eXM ........
  • Page 4 Liebert eXM Operating Modes........
  • Page 5 De-Energize Liebert eXM with Maintenance Bypass Cabinet......63 De-Energize Liebert eXM Without Maintenance Bypass Cabinet ....64 Emergency Shutdown With EPO .
  • Page 6 Input busbars—Liebert eXM 60-100kVA frame ........
  • Page 7 TABLES Table 1 Center of gravity and weights for Liebert eXM 60-100kVA frame......10 Table 2 LED indications.

  • Page 9: Important Safety Instructions

    The Liebert eXM cannot be put into operation until it is commissioned by the manufacturer or authorized engineer. Otherwise, human safety may be endangered and damage to the UPS will not be covered by the warranty. The Liebert eXM is designed for commercial and industrial uses and cannot be used as life support equipment. WARNING Risk of electrical shock.
  • Page 10 Important Safety Instructions WARNING Risk of heavy unit falling over. Improper handling can cause equipment damage, injury or death. Exercise extreme care when handling UPS cabinets to avoid equipment damage or injury to personnel. The UPS module weight is up to 956 lb. (434kg). Locate center of gravity symbols and determine unit weight before handling each cabinet.
  • Page 11 Important Safety Instructions AVERTISSEMENT Risque de décharge électrique et d’incendie. pouvant entraîner des dommages matériels, des blessures et même la mort. Les précautions de sécurité habituelles suffisent lorsque le système ASC est en mode de fonctionnement normal et que toutes les portes sont fermées. La zone entourant le système ASC doit être exempte de flaques d’eau, d’humidité...
  • Page 12 Important Safety Instructions WARNING Risk of electric shock. Can cause injury, property damage 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.
  • Page 13 All operations described in this section must be performed by properly trained and qualified electricians or technical personnel. If any difficulties are encountered, contact Emerson Network Power. See the back page of this manual for contact information.

  • Page 14: Glossary Of Symbols

    Glossary of Symbols LOSSARY OF YMBOLS Risk of electrical shock 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 AC voltage Equipment grounding conductor Bonded to ground...

  • Page 15: Introduction

    NTRODUCTION The Liebert eXM UPS is a fixed-capacity, transformer-free, online uninterruptible power system with 208/120V input and 208/120V output capability. The Liebert eXM can operate with either a 50 or 60Hz input and provide a matching output frequency conversion. Optional transformers are available to add 208V isolation or 480V or 600V input capability to the...

  • Page 16: Installation

    Liebert eXM. Initial Inspections 1. While the Liebert eXM and ancillary cabinets are still on the truck, inspect the equipment and shipping container for any signs of damage or mishandling. Do not attempt to install the system if damage is apparent.

  • Page 17: Ups Location

    74-80°F, (23-27°C). The Liebert eXM is 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 18: Mechanical Considerations

    Installation Mechanical Considerations The Liebert eXM is constructed with a steel frame and removable panels. Top and side panels are secured to the chassis by screws. The doors may be opened for access to power connection bars, auxiliary terminal blocks and power switches.

  • Page 19: Clearances

    Floor Installation If the Liebert eXM is to be placed on a raised floor, the UPS should be mounted on a pedestal that will support the equipment point loading. Refer to the bottom view in Figure 1 to design this pedestal.

  • Page 20: Auxiliary Cabinets

    UPS. Liebert Bypass Cabinets are designed to be bolted to the right side of the UPS (see Figure 3). Refer to SL-25652, the Liebert eXM Maintenance Bypass Cabinet manual for further details.

  • Page 21: Liebert Power Module Assembly

    Cabinet Liebert eXM connected to Liebert BDC/MBC and Battery Cabinets (BDC/MBC must be on right side of the Liebert eXM) (Battery Cabinets must be on the left side of the Liebert eXM) Liebert Power Module Assembly Figure 4 Liebert power module assembly indicators and controls...

  • Page 22: Static Bypass Assembly

    Installation The Fault LED will illuminate red when the Liebert power module assembly has a problem. Table 2 LED indications LED Status Indication Run LED (Green) Flashing Green The inverter is starting, but has no output yet. Constant Green The inverter has started to supply power. The inverter has not started up.

  • Page 23: Electrical Connections -Ups

    Risk of electric shock. Can cause property damage, injury and death. Before connecting input power to the Liebert eXM, 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: External Protective Devices

    Electrical Connections—UPS Torque Requirements Refer to Tables 3 and 4 for lug size and torque requirements. Table 3 Busbars—Power wiring Bolt Shaft Size Lb-in (Nm) 1/2" (M12) 428 (48) Table 4 Terminal block with compression lugs—Control wiring AWG Wire Size or Range Lb-in (Nm) 3.5 to 5.3...

  • Page 25: Ups Input Configuration

    Both feeds must be protected externally with properly sized protective devices. To wire the Liebert eXM as a single source dual-input UPS, remove the links and wire the bypass feed to the bypass busbars, then wire the main feed to the main busbars (see Figure 9).

  • Page 26: Figure 7 Single Ups Block Diagram-Dual Input, Single Source Configuration

    Electrical Connections—UPS Figure 7 Single UPS block diagram—Dual input, single source configuration Bypass Distribution Cabinet * Bypass AC Output Optional AC Input 208V Distribution 4-Wire + GND 4-Wire + GND See Note 6 Static Bypass * Rectifier AC Input 4-Wire + GND UPS Cabinet Battery NOTES...

  • Page 27: Ups Input Configuration With Transformers

    In this configuration, the static bypass and the rectifier lines can be supplied by independent sources. The Liebert eXM Dual Transformer Cabinet is the only approved method for supplying the eXM from two independent sources. See SL-25655 for details. Both feeds must be protected externally with properly sized protective devices.

  • Page 28: Cabling Guidelines

    The rectifier input, bypass, output and battery are easily accessible from the front of the unit for installation. All require lug type terminations. They are connected to busbars on the front of the Liebert eXM, as shown in Figure 9. These busbars are accessible when the I/O panel is removed. NOTICE Risk of improper installation.

  • Page 29: Figure 9 Input Busbars-Liebert Exm 60-100Kva Frame

    Electrical Connections—UPS Figure 9 Input busbars—Liebert eXM 60-100kVA frame 23.6" (600mm) Detail A 78.56" (1994mm) DETAIL A FRONT VIEW Door Removed NOTES 1. Control wiring and power wiring must be run in separate conduits. 3. Shown with seismic mounting bracket.

  • Page 30: Accessory Fuses And Back-Feed Breaker Wiring

    Two fuse blocks provide power for the back-feed breakers (standard) and the BDSUi (optional). The fuse blocks are at the lower right of the I/O panel on the front of the Liebert eXM UPS. See Figure 10 for fuse-holder locations.

  • Page 31: Figure 11 Dual Input Back-Feed Breaker Wiring When Bypass Distribution Cabinet Not Used

    Electrical Connections—UPS Figure 11 Dual input back-feed breaker wiring when bypass distribution cabinet not used Upstream Bypass 1. Auxiliary contacts not needed for backfeed breaker operation. 2. A 120V shunt trip coil is required for proper operation. Input Breaker Upstream System Dual Input Control Wiring Input Breaker Single Input Control Wiring...

  • Page 32: Safety Ground

    The ground and neutral busbars are easily accessible when the I/O panel is removed. Cable connections should be made before a cabinet is attached to the right side of the Liebert eXM or before the UPS is placed where another obstruction, such as a wall, is against the Liebert eXM’s the right side.

  • Page 33: Protective Devices

    3. Connect the facility ground and ancillary ground bus cables to the copper ground busbar located in the middle of the Liebert eXM behind the output connections. All cabinets in the UPS system must be connected to the user’s ground connection.

  • Page 34: Control Cables Details

    Electrical Connections—UPS Common Input Connections 5. For common bypass and main inputs, connect the AC input supply cables to the UPS input terminals (A2-B2-C2-N1) and tighten the connections to 428 lb-in. (48Nm) (M12 bolt). Ensure correct phase rotation. NOTE For common bypass and main inputs, the AC input cables must be connected to the bypass terminal (A2-B2-C2-N1) but not the main input terminal (A2-B2-C2).

  • Page 35: Figure 13 Static Bypass Assembly Connections To Display Cabinet And Options

    Electrical Connections—UPS Figure 13 Static bypass assembly connections to display cabinet and options Operator Control Panel Monitor Battery Cabinet Bypass Distribution Cabinet Bypass Backfeed Protection Static Mains Backfeed Protection Bypass Assembly Temp Sensor (optional) and BCB Control Board Ground Fault (optional) Sensor &...

  • Page 36: Dry Contacts

    Electrical Connections—UPS Dry Contacts The UPS provides input dry contacts and output dry contacts on the Auxiliary Terminal Block (ATB). 3.4.1 Input Dry Contacts External input dry contacts are connected via the ATB. Dry contacts are available for environment detection, battery ground fault detection, etc. The UPS accepts external signal from zero-voltage (dry) contacts connected through external dry contact terminals produced, and these terminals are on the static bypass assembly.

  • Page 37: Table 5 Input Dry Contacts-J26

    Electrical Connections—UPS Table 5 Input dry contacts—J26 Port Name Description Q1 STATUS The main input switch status signal GND_DRY Dry ground Q2 STATUS The bypass input switch status signal GND_DRY Dry ground Q3 STATUS External maintenance switch status signal GND_DRY Dry ground Q5 STATUS External output switch status signal...

  • Page 38: Output Dry Contacts

    Electrical Connections—UPS 3.4.2 Output Dry Contacts The Auxiliary Terminal Block has three output dry contact relays (see Figure 16 and Table 6). Figure 16 Output dry contacts and EPO wiring BFP_O INV_O INV_S BFP_S BFP_C INV_C MAIN_O MFP_O MAIN_S MFP_S MAIN_C MFP_C RESV_O...

  • Page 39: Liebert Bdc Interface

    All auxiliary cables of terminal must be double-insulated. Wire should be 20-16AWG stranded for maximum runs between 80 and 200 feet (25-60m), respectively. NOTE Refer to SL-25653, the Liebert eXM Bypass Distribution Cabinet manual for the Liebert BDC wiring. 3.4.4 Battery Cabinet Interface Connectors The battery cabinet interface is on the Auxiliary Terminal Block at J22.

  • Page 40: Epo Input-Optional

    Do not apply more than 12V to the Emergency Power Off (EPO) input. Exceeding 12V on this input can damage the Liebert eXM’s internal circuitry and control boards. Exceeding 12V will also put the Liebert eXM in an EPO state, and the unit will not reset, making it non- functional.

  • Page 41: Figure 19 Single Ups Remote Emergency Power Off

    Electrical Connections—UPS Figure 19 Single UPS Remote Emergency Power Off Single Liebert eXM Module Liebert eXM Bypass Module EPO_NO +12V +12V EPO_NC Remote Emergency X9_J2 Power Off (Customer-Supplied) Field-Supplied Wiring ® ™ Liebert...

  • Page 42: Installation Drawings

    Installation Drawings NSTALLATION RAWINGS The diagrams in this section illustrate the key mechanical and electrical characteristics of the Liebert eXM UPS System cabinets (UPS, Liebert BDC and battery). Figure 20 UPS dimensions—Front view 23.6" (600mm) NOTES 1. Dimensions are in inches (mm) 2.

  • Page 43: Figure 21 Ups Main Components-Typical 60-100Kva Unit

    Installation Drawings Figure 21 UPS main components—Typical 60-100kVA unit Batt-N Input mN Replaceable Batt + Input mC Batt - Air Filter Input mB Output oN Operator Input mA Ground Control Filter Output oC Output oB Input bA Output oA Input bB Input bC Bypass Replaceable...

  • Page 44: Figure 22 Ups Cable Connections-60-100Kva Frames

    Installation Drawings Figure 22 UPS cable connections—60-100kVA frames 2.5" (64mm) 4 Places, typical 3.1" (79mm) 3.4" (86mm) 1.9" (48mm) 6 Places, typical 1.8" (46mm) 1.8" (46mm) DETAIL A DETAIL B Busbar Dimensions 37.5" (953mm) 23.6" (600mm) Detail A 78.56" (1994mm) 63.6"...

  • Page 45: Option Installation

    SNMP and Modbus. 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 eXM is operating.

  • Page 46: Liebert Intellislot Web Card-Optional

    Option Installation ™ 5.2.1 Liebert IntelliSlot Unity Cards—IS-UNITY-LIFE, IS-UNITY-S, IS-UNITY-DP • IS-UNITY-LIFE: This standard card is used for communication between the Liebert eXM and Emerson’s Trellis NMS and LIFE services. ® ™ • IS-UNITY-DP: This card can be used instead of the standard card if communication to two third-party platforms is required.

  • Page 47: Liebert Intellislot ™ Relay Card

    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 eXM. 5.4.1 Liebert IntelliSlot Relay Card Pin Configuration The card has two terminals blocks, TB1 (green, numbered 1-9) and TB2 (black, 10-18), as shown in Figure 24.

  • Page 48: Liebert Intellislot ™ Relay Card Jumper Setup

    Option Installation ™ 5.4.2 Liebert IntelliSlot Relay Card Jumper Setup The Liebert IntelliSlot Relay Card has five jumpers, P3 through P7, as shown in Figure 25. Each jumper connects two pins. Figure 25 Jumper location and numbering Front Card Jumper Jumper Jumper Jumper...

  • Page 49: Operator Control And Display Panel

    ONTROL AND ISPLAY ANEL Operator Control Panel The control panel and LCD on the front of the Liebert eXM 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 external batteries, including all measured parameters, events and alarms.

  • Page 50: Mimic Display Indicators

    Indicator Status Indicator Mimic indicators show the operational status of the Liebert eXM by their color—green, amber or red—and whether they are ON (solid), flashing or OFF. Table 14 provides a guide to interpreting the various states of the indicators.

  • Page 51: Control Buttons

    Operator Control and Display Panel Control Buttons The Control Buttons on the front panel may be used to shut down the UPS completely, turn the inverter on or off, restart the UPS after a fault and silence the alarm, as shown in Figure 28. The function of each button is described in Table 15.

  • Page 52: Alarm Buzzer

    Operator Control and Display Panel Alarm Buzzer The alarm buzzer produces three types of sounds: • Single beep - when any Control button is pressed • Single beep repeating every two seconds - the system has a general alarm • Continuous - the system has a serious fault If the alarm buzzer makes no sound, the system may be operating properly or the alarm may have been silenced manually.

  • Page 53: 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 eXM. Navigation key icons on the LCD appear above each key to indicate its operation (see Table 16). The keys are “soft keys”...

  • Page 54: Lcd Menus And Data Items

    Operator Control and Display Panel LCD Menus and Data Items The LCD menus provide access to the following categories of information and settings for the UPS. Selecting a menu changes the information displayed in the UPS data items portion of the LCD. The menu choices are listed below and described in detail in Table 17.

  • Page 55: Figure 31 Menu Tree

    Operator Control and Display Panel Figure 31 Menu tree Mains (input) Bypass Output Load System L-N voltage (V) L-N voltage (V) L-N voltage (V) Sout (kVA) Sout (kVA) L-N current (A) Frequency (Hz) L-N current (A) Pout (kW) Pout (kW) Frequency (Hz) L-L voltage (V) Frequency (Hz)

  • Page 56: Language Selection

    Operator Control and Display Panel Language Selection The LCD menus and data display are available in 12 languages (Chinese, Dutch, English, French, German, Italian, Japanese, Polish, Portuguese, Russian, Spanish and Swedish). To select a different language: 1. From the main menu, press the F4 (shift) key to move the cursor to the Language menu at the bottom of the screen.

  • Page 57: Ups History Log

    6.10 UPS History Log The Liebert eXM displays status changes as they occur and stores that data in the history log, as shown in Figure 34. • History Log: When a record moves to the history log, the time the status changed is recorded.

  • Page 58: Types Of Lcd Screens

    As the UPS begins powering up, the opening display appears, as shown in Figure 35. Figure 35 Opening display Single 0 2 :1 7 : 4 7 EMERSON ® Network Power Pres s any k ey back to main menu HELP 6.11.2 Default Screen...

  • Page 59: 6.11.3 Ups Help Screen

    6.11.4 Screen Saver Window If there has been no interaction with the Liebert eXM’s 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 60: 6.12.3 System Self-Test

    6.12.5 Battery Self-Test Aborted, Condition Not Met When a battery capacity test is started from the Command menu and the battery self-test condition is inadequate, the Liebert eXM will not Battery Self-Test aborted, perform a battery test. User should check whether the battery state is Conditions not met boost charging and whether the load level is greater than 20 percent.

  • Page 61: Table 17 Ups Menus And Data Window Items

    Operator Control and Display Panel Table 17 UPS menus and data window items Menu Type Item Type Explanation L-N voltage (V) Phase voltage L-N current (A) Phase current Mains Frequency (Hz) Input frequency (input) L-L voltage (V) Line-line voltage Power factor Power factor L-N voltage (V) Phase voltage...
  • Page 62 Operator Control and Display Panel Table 17 UPS menus and data window items (continued) Menu Type Item Type Explanation Display contrast Adjust the LCD display contrast Choose the format for date display: YYYY MM DD, DD MM YYYY and MM DD Date format set YYYY Date &...

  • Page 63: Operation

    The Liebert eXM operates in the modes shown in 7.1 - Liebert eXM Operating Modes. This section describes various kinds of operating procedures under each operating mode, including transfer between operating modes, UPS setting and procedures for turning on/off inverter.
  • Page 64 Bypass Mode When the Liebert eXM is in bypass mode, the load is directly supported by utility power and is without battery backup protection. The Liebert eXM’s static transfer switch will shift the load from the inverter to bypass mode without interruption in AC power if the inverter is synchronous with the bypass and any of the following occurs: •...

  • Page 65: Ups Startup

    Liebert eXM output voltage. Generator Mode The Liebert eXM UPS can be set up for operation in Generator Mode by an Emerson Network Power Liebert Services engineer. The setup requires connecting J26 Pin 2 to Pin 4.

  • Page 66: Startup Procedure

    Operation 7.2.1 Startup Procedure To start the UPS from a fully powered-down condition: 1. Open the external power switch. 2. Open the UPS door. 3. Connect the power supply cables. 4. Ensure the correct phase rotation. 5. Close the external input circuit breaker and connect input power. The LCD activates.

  • Page 67: Startup In Eco Mode

    INVERTER ON button. After the inverter enters normal operation, the UPS transfers to Normal Mode. UPS Battery Start The Battery Start option permits starting the Liebert eXM with power supplied only by the batteries (at charged condition). NOTICE Risk of loss of power to the connected load. Can cause equipment damage.

  • Page 68: Switching The Ups From Normal Operation To Maintenance Bypass

    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 eXM system are still energized. Service must be performed by properly trained and qualified personnel only.

  • Page 69: Figure 38 One-Line Diagram, Single-Input Ups With 3-Breaker Bypass Distribution Cabinet And Panelboard

    NOTICE Risk of power loss to connected load. Can cause damage to equipment. The load equipment is not protected from normal supply aberrations when the Liebert eXM is operating in the maintenance bypass mode. Figure 38 One-line diagram, single-input UPS with 3-breaker bypass distribution cabinet and panelboard...

  • Page 70: Switching The Ups From Maintenance Bypass To Normal Operation

    Si ces conditions ne sont pas réunies, une courte interruption d'alimentation pourrait survenir. 1. Verify that the Liebert eXM is in Maintenance Bypass mode. NOTE Pressing the Alarm Silence Switch cancels the audible alarm, but leaves the warning message displayed until the appropriate condition is rectified.

  • Page 71: De-Energize Liebert Exm With Maintenance Bypass Cabinet

    2. Open all battery circuit breakers(s) including the internal battery breaker (if applicable). 3. If the MBC is an Emerson cabinet, open the Maintenance Isolation Circuit Breaker (MIB). If the MBC is a customer-issued switchgear or a non-Emerson cabinet, open the breaker(s) that supply power to the critical bus.

  • Page 72: De-Energize Liebert Exm Without Maintenance Bypass Cabinet

    Risk of loss of power to the critical load. Can cause equipment damage. This procedure will remove power from the critical bus. Take precautions by providing a backup power supply or shutting down equipment before de-energizing the Liebert eXM. To de-energize the Liebert eXM: 1.

  • Page 73: Auto Restart

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

  • Page 74: Specifications And Technical Data

    Misc OSHA, ASME, NEMA PE-1 The Liebert eXM has UL and c-UL approval. UPS Environmental The Liebert eXM is designed to operate under the following environmental conditions without damage or degradation in electrical operating characteristics: Table 21 Environmental requirements Item Requirements Acoustical Noise, dBA, at 55 in.

  • Page 75: Ups Electrical Characteristics

    Specifications and Technical Data UPS Electrical Characteristics Refer to additional circuit breaker notes in 3.2.7 - Accessory Fuses and Back-Feed Breaker Wiring. NOTE The breakers and cables used must be in accordance with NEC ANSI/NFPA 70. A disconnect breaker must be provided for AC input, DC input and AC output. Recommended cable sizes are suitable for operation at a maximum temperature of 104°F (40°C).

  • Page 76: Table 28 Rectifier Input

    Specifications and Technical Data Table 28 Rectifier input 60-100kVA Parameter AC Input Parameters 50/60Hz, 3-Phase, 4-Wire Plus Ground Rated AC Voltage 208/120V 220/127V Input Voltage Range, Startup/Operating 177-253VAC 187-264VAC Input Voltage Range, Operating 125-253VAC 132-264VAC Frequency 50 or 60HZ (40-70Hz Range) Power Factor 0.99 Full Load, 0.98 Half Load UPS Capacities, kVA...

  • Page 77: Table 31 Inverter Output To Critical Load

    Specifications and Technical Data Table 31 Inverter output to critical load Parameter 60-100 kVA Rated AC Voltage 208/120V or 220/127V, 50/60Hz, 3-Phase, 4-Wire Plus Ground Frequency * 50/60Hz 105% load, continuous 110% load, 60 min Overload Capacity 125% load, 10 min 150% load, 60 sec Fault Current Short circuit for 200 ms...

  • Page 78: Maintenance

    L'entretien et la réparation de cet équipement doivent être confiés exclusivement à un personnel qualifié d'Emerson ou formé par Emerson. Des hautes tensions c.a. et c.c. mortelles sont présentes dans cet équipement. Faites preuve d'une grande prudence lorsque vous travaillez à...
  • Page 79 Maintenance WARNING Risk of electrical shock and arc flash. Can cause property damage, injury and death. Extreme caution is required when performing maintenance. Be constantly aware that the UPS system contains high DC as well as AC voltages. With input power Off and the optional battery cabinet disconnected, high voltage at filter capacitors and power circuits should be discharged within 30 seconds.

  • Page 80: Limited Life Components

    Maintenance Limited Life Components The Liebert eXM UPS 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. However, due to the currently available component material,...

  • Page 81: Air Filters

    All Liebert eXM models have replaceable filter elements behind the grille in the front of the unit. This element can be changed with the UPS operating by opening the outer door. The Liebert eXM’s air filters are washable and reusable.

  • Page 82: Torque Requirements

    Maintenance 9.3.3 Torque Requirements All electrical connections must be tight. Tables 34 through 35 provide the torque values for the connections in the UPS and batteries. Use these values unless the equipment is labeled otherwise. Table 34 Busbars—Power wiring Bolt Shaft Size Lb-in (Nm) 1/2"...

  • Page 83: Recommended Test Equipment

    Maintenance Recommended Test Equipment Table 36 lists recommended test equipment and tools required to maintain, troubleshoot and repair the UPS module. Instruments of equivalent range and accuracy may be substituted. All instruments should be calibrated and be within the current calibration cycle. Calibration data for the instruments should be maintained in equipment-history files and the instruments labeled for audit and verification.

  • Page 84: Appendix A - Hazardous

    SJ/T11363-2006 Emerson Network Power Co., Ltd. has been committed to the design and manufacturing of environment-friendly products. It will reduce and eventually eliminate the hazardous substances in the products through unremitting efforts in research. However, limited by the current technical level, the following parts still contain hazardous substances due to the lack of reliable substitute or mature solution: 1.

  • Page 85: Messages

    Maintenance B - UPS S PPENDIX TATUS ESSAGES Table 38 shows all event messages as they appear in the current status area of the LCD or the history log, along with a description and recommended actions, if any. For further information on the current status area and the history log, see 6.10 - UPS History Log.
  • Page 86 Maintenance Table 38 UPS status messages (continued) Event Message Description / Suggested Action (if any) This alarm is triggered by an inverter software routine when the amplitude or frequency of bypass voltage exceeds the limit. This alarm automatically resets once the bypass voltage goes normal. First check if there are some relevant alarms such as “Bypass disconnect open”, “Bypass phase reverse”...
  • Page 87 Maintenance Table 38 UPS status messages (continued) Event Message Description / Suggested Action (if any) The phase sequence direction of bypass voltage is reversed. Normally, the phase of Phase B lags 120 degrees behind Phase A, and the phase of Phase C Bypass Phase Reversed lags 120 degrees behind Phase B.
  • Page 88 Maintenance Table 38 UPS status messages (continued) Event Message Description / Suggested Action (if any) BCB open BCB open from dry contact signal. Battery Float Charging Battery is float charging. Battery Boost Charging Battery is boost charging. Battery Discharging Battery is discharging. Battery Period Testing Battery is period self-testing.
  • Page 89 Maintenance NOTES ® ™ Liebert...
  • Page 90 Maintenance ® ™ Liebert...
  • Page 92 Philippines ® Liebert is a registered trademark of Liebert Corporation. +63 2 687 6615 All names referred to are trademarks Fax: +63 2 730 9572 or registered trademarks of their respective owners. SL-25650_REV1_04-15 Emerson Network Power Liebert www.emerson.com...

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