POWER AVAILABILITY Nfinity™ Power System USER MANUAL 208/240V 60Hz 12 to 20 kVA
TABLE OF CONTENTS IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 GLOSSARY OF SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 1.0 INTRODUCTION 1.1 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1.1 System Description. . . . . . . . . . . . . . . . . . . . . . . .
3.5 Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.5.1 UPS Status Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3.5.2 UPS Configuration Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.5.3 Display Date/Time . . . . . . . . . . . . . . . . . . . . . . . . . .
IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important instructions that should be closely followed during installation and maintenance of this UPS unit and during the installation and replacement of Power and Battery Modules. This product is designed for Commercial/Industrial use only. This product is not intended for use with life support and other U.S. FDA-designated “critical” devices. Maximum load must not exceed that shown on the UPS rating label.
GLOSSARY OF SYMBOLS Risk of electrical shock Indicates caution followed by important instructions AC input AC output i Requests the user to consult the manual Indicates the unit contains a valve-regulated lead acid battery Recycle DC voltage Equipment grounding conductor Bonded to ground AC voltage OFF ON Standby No telecommunication connection Locked position Unlocked position Contact closure signals Serial communications 2
Introduction 1.0 INTRODUCTION 1.1 General Description Congratulations on your purchase of Liebert’s Nfinity™ Uninterruptible Power System. As with every other Liebert product, we stand behind our quality. If you have any questions concerning this UPS, please feel free to contact your local dealer or Liebert representative or call the appropriate Technical Support number listed on the back of this manual. To ensure proper installation and operation of this unit, please read this manual thoroughly.
Introduction Figure 1 Front and back views Control Switch (SW2) User Interface REPO Connection Intellislot™ Communications Ports ! ESC DB-9 Communication Ports Power Module Bays Battery Module Bays Output Power Terminal 208/240 Jumper Input Power Terminal Input Earth Terminal Manual Bypass Switch (SW1) Intake Cooling Fans FRONT VIEW with bezels removed BACK VIEW with access plates removed Refer to the table below for size and fully populated weight considerations.
Introduction 1.2 Modes of Operation INPUT MANUAL BYPASS EMI FILTER OUTPUT & BYPASS CONTACTOR POWER MODULE(S) OUTPUT OUTPUT TRANSFORMER BATTERY MODULE(S) USER INTERFACE CONTROL INTERFACE COMMUNICATIONS SYSTEM CONTROL MODULE(S) POWER CONTROL Normal Mode The Power Module rectifiers derive power from a utility AC source and supply regulated DC power to the inverter. The module’s inverter regenerates precise AC power to supply the connected equipment.
Introduction 1.3 Major Components Nfinity’s frame with bezels removed The following is a general description of each component and its functions. Please review this section carefully, as it will give you a better understanding as to how the Nfinity operates. 1.3.1 Unit Frame The front of the Nfinity consists of a series of plastic bezels. By grasping these bezels from the left and right sides and pulling straight out, you can remove the bezel to reveal the Battery / Power Module bays.
Introduction 1.3.4 Power Module Each power module is an independent 4 kVA, 2.8kW unit, consisting of a power factor corrected rectifier, battery charger and inverter, with associated monitoring and control circuitry. The modules are paralleled to provide greater capacity and/or redundancy. Modules may be added or replaced on-line with no interruption or danger to the connected equipment. 1.3.
Installation 2.0 INSTALLATION 2.1 Inspection Upon receiving the UPS, examine the packaging for any signs of mishandling or damage. If any damage is noted, call your local dealer or Liebert representative and/or notify your carrier. 2.1.1 Environment NOTE Operating in temperatures above 77°F (25°C) will reduce battery life. The UPS environment must be free of conductive contaminants and excessive moisture (water and condensation), flammable vapors, chemical fumes, corrosive gases and liquids. 2.1.
Installation 2.2 Unloading 2.2.1 Unloading the UPS ! CAUTION This UPS is very heavy (see weight in Table 1). At least two people should assist in unloading it from the pallet. 2. Remove the metal ramp from the bottom of the UPS. Pull ramp out from under front of unit, then turn ramp over 3. Fit the ramp flange in the slot in the rear of the pallet (back of unit) as shown below. Fit ramp in rear of pallet 1.
Installation 5. Once the UPS is in the desired location, adjust the leveling feet to secure its position. 1/2" (13mm) Stationary Mounting Additional stability can be added by bolting the mounting brackets (used in shipping) to the floor, as shown below left. Optional Stationary Mounting Dimensions Shipping Brackets Used for Stationary Mounting 4.75" (120mm) 28" (711mm) 4.75" (120mm) Center Line 2.2.2 5/16" (7.94mm) diameter - in six places For greater stability, use a higher-grade bolt.
Installation 2.3 Cable Installation 2.3.1 Wiring Preparation ! Customer-Provided Overcurrent Protection WARNING Please read this section thoroughly before attempting to install wiring to this unit. This UPS should be installed by a qualified / certified electrician. Removing the Cover Plates On the back of the UPS, cover plates are over the input and output terminals, as shown at right. Keep screws and plates to one side.
Installation Input Wiring (TB1) To connect the input wiring, follow these steps: 1. Locate the input wiring access, remove the knockout and pull the three input wires through it, allowing some slack for installation. 2. Secure the conduit to the rear panel of the UPS. 3. Input Power cables connect to screw terminals on the Input Terminal Block located to the right of the Bypass Voltage Terminal. Connect the wires to the block connections as shown below.
Installation 2.3.2 Connecting to External Panel Boards The following instructions are also shipped attached to the rear of the unit. INPUT CABLING AND PROTECTION Table Below Applies to 12-20kVA Scalable Systems: Stand-alone UPS or UPS equipped with a Maintenance Bypass Cabinet (Without Transformer) Input Voltage – 208VAC Input Voltage – 240VAC Max. Current in UPS mode Recommended Input Protection Circuit Breaker Max.
Installation OUTPUT CABLING UPS Output Terminal Block (TB3) Connection to External Panel Boards 208 VAC If connected equipment operates at 208VAC only, use a single-phase panel board connected to the UPS as follows.
Installation 2.3.3 REPO Connection The Nfinity is equipped with a Remote Emergency Power Off (REPO) connection. NOTE A jumper is factory installed between pins 1 & 2 to disable the Control Switch (SW2). This will prevent the unit from being started during installation. This jumper must be removed in order to start the unit.
Installation 2.4 Communications 2.4.1 COM Ports Nfinity is able to communicate through multiple communication ports simultaneously. Use only Liebert-provided communication cards. Connect only Signal Edge Low Voltage (SELV)/Class 2 circuits when connecting to any communication port. Pin Assignment 5 There are two DB-9 COM ports available on the rear of the Nfinity. 4 9 3 8 2 7 1 6 COM1 - Relay Contacts Relay contacts are available through a DB-9F communications connector.
Operating Instructions 3.0 OPERATING INSTRUCTIONS 3.1 Controls and Indicators 3.1.1 Display Controls The User Interface Module informs you of the status of the UPS and lets you configure the UPS to your own needs or preferences. The module consists of a series of Status LEDs, an LCD display window (four lines of 20 characters each), and buttons for navigation, as displayed below.
Operating Instructions 3.2 Status LED Modes 3.3 Navigating the Menu To review or change any settings on the UPS, use the buttons on the User Interface shown at left. Because some menus contain more than four rows of information, you may see an arrow on the display pointing up or down (as shown below)—indicating to scroll using the or buttons.
Operating Instructions 3.4 Operating Procedures 3.4.1 Start-Up and Initialization 3.4.3 Manual Transfer to Bypass To manually transfer the UPS to bypass, move the manual bypass switch to the bypass position. The manual bypass switch is behind the front bottom bezel. To transfer the UPS from bypass to normal mode, follow the onscreen instructions. Follow these steps to start up the UPS. 1. Ensure the manual bypass switch is in UPS position.
Operating Instructions 3.5 Main Menu After initialization, the button will take you to the Main Menu. From here you may check on the status of the UPS, review the event log and active alarms, configure your UPS and even receive instructions on replacing modules.
Operating Instructions 3.5.1 UPS Status Screen From the Main Menu the user may select UPS Status and press . Once at the UPS Status Screen, the user may access any information on the present condition of the UPS. Note the chart below when reviewing the UPS.
Operating Instructions 3.5.2 UPS Configuration Screen Review Settings Follow this procedure to review your UPS configuration settings. Follow the menus below by pressing and to review the settings.
Operating Instructions Change Configuration Settings - Change Settings Menu Starting from the Main Menu, locate and press UPS Configuration. From the UPS Configuration screen, select the Change Settings option. You may configure Nfinity from a large variety of selections. Items indicated by an asterisk (*) are the selected settings.
Operating Instructions Auto Battery Test: Configure when and how often Auto Restart: Automatically restarts once both the Nfinity’s automatic battery test will run. This test delay parameters (battery capacity percentage and is designed to ensure battery system integrity and countdown timer) are met. provide early warning of problems.
Operating Instructions Set Date/Time: Allows user to enable/disable DST (Daylight Saving Time), change the Day, Date and Time setting on Nfinity. When enabled, the time will automatically adjust to Daylight Saving Time. Service Contact: Set a contact for the user to reach if problems occur. Service Contact >Company Name Company Phone Set Time/Date DST Mode Set Time/Date Company Name Company/Name DST Mode LIEBERT CORP. DST Mode Enabled * Disabled Phone Number Phone Number Set Date/Time WWW.LIEBERT.
Operating Instructions Bypass Alarm Mode: Allows the user to enable/disable alarm, indicating that the bypass is not qualified. Bypass Alarm Mode > Enable Disable Guarantee Shutdown: Allows the user to guarantee a shutdown after a low battery warning is announced, even if the utility becomes qualified. Guarantee Shutdown Enable * Disable Line Compensation: Allows the user to control the amount of line drop compensation to be applied to the nominal output voltage.
Operating Instructions UPS Configuration Screen - Service Mode Menu Service Mode contains site identification information about the UPS system. The data is entered by Liebert Global Services (LGS). To view the data, go to the Main Menu, select UPS Configuration and press . Next, select Service Mode and press . Set Site ID: Press ESC to return to the Service Mode menu. Scroll to Set Site ID and press to display the screen shown below.
Operating Instructions 3.5.4 Event Log 3.5.5 Accessing the Event Log enables the user to scroll through the Nfinity’s past 255 occurrences. To open the Event Log, start at the Main Menu, select Event Log and press . Active Alarms Alarms affecting the Nfinity can be viewed at the Active Alarms screen. To access the screen, go to the Main Menu, select Active Alarms and press .
Operating Instructions 3.5.7 Module Replacement The user interface also supplies instructions for removing and replacing modules. From the Main Menu, access the module replacement screen and select the type of module.
Operating Instructions 3.5.8 Service Tools for Liebert Global Services Engineers The Service Tools option is intended for use by Liebert Global Services engineers or Liebert-trained engineers to carry out certain tests and clear failures. These are advanced menus, entering changes may adversely affect UPS operation. From the Main Menu, shown below left, select Service Tools and press .
Troubleshooting 4.0 TROUBLESHOOTING 4.1 Active Alarms In the event of an alarm, the User Interface LCD will display the last message regardless of the default screen. A list of possible alarm messages is displayed below. If you encounter one of these or other alarm messages and are unsure of the corrective action to take, please contact a qualified Liebert representative at the number listed on the back of this manual.
Troubleshooting User Interface Text Cause Action Assert manual bypass A user-initiated transfer to bypass will assert this alarm, instructing the user to enable the manual bypass switch. Once the manual bypass is asserted, the alarm will clear. This is a non-mutable alarm. Engage the manual bypass switch (located at the bottom front on the left hand corner of the unit). Once engaged, the switch may be de-asserted to return to normal operation.
Troubleshooting 4.2 Module LED Indication Every Battery, Power and Control Module features two LEDs to help inform the user of the module status, as shown below left. Refer to Table 2 for details. Table 2 Green Status LED Yellow Fault LED Status LED (Green) Fault LED (Yellow) OFF OFF Module not inserted into frame. System is OFF. OFF ON Module is initializing (max 30 seconds*). FLASHING OFF Normal Operation FLASHING FLASHING Module is in start-up qualification mode or module warning.
Troubleshooting 4.3 Module Replacement Follow the instructions below when replacing or adding a Control, Battery or Power Module to the system. MODULE REMOVAL (Steps 4a-c) Step 4a To order additional modules, contact your Liebert representative or call 1-800-LIEBERT. 4.3.1 Removing Modules 1. Remove bezel cover of appropriate module. When replacing a Power or Battery Module, verify the faulty module by confirming the yellow LED is lit. 2.
Troubleshooting 4.3.2 Adding or Replacing Modules NOTE Power Modules must be installed in the top half of the Nfinity frame. Battery Modules can be installed in any bay of the UPS frame. 1. Lift module to appropriate bay, resting end of module on bay shelf. Use caution not to rest the module on the lower bezel cover. 2. Push module into bay. Once halfway in, slide module sideways toward the center of the UPS. Continue pushing module until fully inserted. 3. Press and turn fastener clockwise until locked.
Maintenance 5.0 MAINTENANCE 5.1 Maintenance 5.1.1 Proper Care Keeping your Liebert Nfinity UPS operating properly is imperative to optimal performance and life of the unit. It is recommended that a certified technician perform preventive and corrective maintenance. Liebert Global Services (LGS) is dedicated to ensuring the highest level of performance and unmatched support for your Nfinity UPS. Contact an LGS representative for service to guarantee maximum reliability and system availability. 5.1.
Specifications 6.0 SPECIFICATIONS General & Environmental Units kVA kW Unit Rating Conducted and Radiated EMC Levels Compliant Safety Standards Compliant Immunity Standards Mechanical Width Dimensions Depth Height Environmental Operating Temperature (max) Relative Humidity Maximum operating altitude Nominal heat dissipation Acoustic noise level Input Data Nominal input voltage 20 14 20 16 20 (508) 28 (711) 54 (1372) in (mm) Units C (F) % M (ft.
Specifications 38
POWER AVAILABILITY Nfinity™ Power System The Company Behind the Products With over a million installations around the globe, Liebert is the world leader in computer protection systems.
