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Summary of Contents for EnerSys Alpha Cordex CXPS-W-FA
- Page 1 Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide ID: 9400010-J0 Effective: 03/2025 Read this document carefully. Learn how to protect your equipment from damage and fully understand its functions.
- Page 2 User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System The material contained in this document is for information only and is subject to change without notice. Alpha® reserves the right to make changes in the product design without reservation and without notification to its users.
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Page 3: Table Of Contents
Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide Contents 1. Safety......................... 4 1.1 Safety symbols ..................................4 1.2 General warnings and cautions ............................4 1.3 General safety requirements for AC cord connected shelf installation and servicing .............5 1.4 Mechanical safety ................................5 1.5 Electrical safety .................................6 1.6 Installation and safety precautions ..........................6 1.7 Lifting ....................................7... - Page 4 User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 6.2 Tools required ..................................32 6.3 Installation of external batteries ............................32 6.4 Battery maintenance report ............................34 6.5 Power system assembly and mounting ..........................35 7. Wiring ........................37 7.1 Installation notes ................................37 7.2 Grounding ..................................38 7.3 Front access system: AC supply wiring ..........................40 7.4 AC supply for the rectifier modules ..........................45 7.5 Standard system: AC wiring for the Cordex®...
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Page 5: Safety
Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 1. Safety Save these instructions This document contains important safety instructions that must be followed during the installation, servicing, and maintenance of the product. Keep it in a safe place. Review the drawings and illustrations contained in this document before proceeding. -
Page 6: General Safety Requirements For Ac Cord Connected Shelf Installation And Servicing
User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System WARNING This system is designed to be installed in a restricted access location that is inaccessible to the general public. AVERTISSEMENT Ce système est conçu pour être installé dans un endroit à accès restreint inaccessible au grand public. -
Page 7: Electrical Safety
Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 1.5 Electrical safety WARNING Hazardous voltages are present at the input of power systems. The DC output from rectifier modules, converter modules, and the battery system have a high short-circuit current capacity that can cause severe burns and electrical arcing. -
Page 8: Lifting
User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 1.7 Lifting CAUTION Follow all local safety practices and guidelines while lifting the power system. All personnel involved with lifting and positioning the power system must wear head and eye protection, and gloves. -
Page 9: Introduction
Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 2. Introduction 2.1 Document scope This document covers the features, options, installation, and startup of the Cordex® CXPS-W-FA, CXPS-W 2,000 A power system. Images contained in this document are for illustrative purposes only and may not exactly match your installation. -
Page 10: Cordex® Cxps-W-Fa Front Access Power System
User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 2.3 Cordex® CXPS-W-FA Front Access Power System The new Cordex® CXPS-W-FA front access power system is an evolution of the popular Cordex® CXPS-W power system. All AC terminations have been moved from the rear (standard system) to the front of the bay with top entry and side channel to a DIN rail AC termination pane. -
Page 11: Specifications
Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 3. Specifications 3.1 Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System Table A: Cordex® CXPS-W-FA, CXPS-W 2,000 A power system specifications Electrical Primary output voltage –48 V Secondary output voltage +24 V (optional) Cordex HP 4.0/4.6 kW rectifier... - Page 12 User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System System level alarms and controls Alarm and control parameters are user-programmable through built-in system controller. System controller Cordex® CXC HP system controller; touchscreen LCD panel LEDs Status and alarms Alarm connections 14 to 22 AWG (0.34 to 2.5 mm Mechanical Mounting...
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Page 13: Features
Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 4. Features 4.1 System overview 4.1.1 Seismic racks The power system can be installed in a variety of Alpha® provided, 23-inch seismic racks. The power system rack has been Z4 rated and NEBS Level 3 certified for up to 2,500 pounds. For more ordering information, contact Alpha Technologies Ltd. - Page 14 User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System Three tiers • Maximum of three distribution tiers • Front access system: Rated for 1,800 A (maximum) Standard system: Rated for 1,200 A (maximum) • Front access system: Option for a 2,000 A LVBD Standard system: Option for a 1,200 A LVBD •...
- Page 15 Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 4.1.4 24-position bullet tier • Occupies one tier position and it can be installed in any location in the distribution cabinet • 600 A tier rating (monitored by 800 A shunt) •...
- Page 16 User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 4.1.6 20-position bullet tier with LVLD • Occupies one tier position and it can be installed in any location in the distribution cabinet • 600 A tier rating (monitored by 800 A shunt) •...
- Page 17 Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 2-position TPL tier theory of operation 800A TPL 800A TPL TPL 1 TPL 2 300A 300A (A Side) (B Side) 600A LOAD If TPL tier 1 or TPL tier 2 fuse positions operate and open, then the other TPL tier fuse position will carry the entire load current and not exceed the 80 percent rating of the fuse and the 600 A rating of the tier.
- Page 18 User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 4.1.10 4-position TPL tier • Occupies one tier position and it can only be installed in the top tier in the distribution cabinet • 1,200 A tier rating (monitored by 1,500 A shunt) •...
- Page 19 Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 4.1.12 12-position high capacity circuit breaker tier • Occupies two tier positions and it can be installed only in specific locations in the distribution cabinet • Tiers 1 and 2, in a 2-tier distribution cabinet •...
- Page 20 User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 4.1.14 10-position GMT fuse block • It can be mounted on the side of the distribution cabinet • 30 A maximum rating • Can accept 15 A GMT fuses NOTICE Only install a 15 A fuse if the adjacent positions are empty. Otherwise install a 10 A fuse maximum per position.
- Page 21 Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 4.1.16 Cable lacing bar kit • The cable lacing bar kit is a metallic bar that can be ordered and installed on the top of the cabinet (as shown in the following figure). •...
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Page 22: Cordex® Hp System Controller
USB: Dual ports on both the front and rear of the system controller for upgrades and file management via a standard USB flash drive. • CAN: Dual independent CAN bus ports for communication with the EnerSys® systems, modules, and peripherals. •... -
Page 23: External Peripherals
Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 4.3 External peripherals 4.3.1 Cordex® HP L -ADIO Low Voltage Smart Peripheral The Cordex® HP L -ADIO low voltage smart peripheral is the standard analog and digital I/O peripheral for low voltage (<60 VDC) systems. - Page 24 User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System LED status Each peripheral contains three LEDs for peripheral status indication. See the Troubleshooting section for LED states and meanings. Front panel reset button NOTICE Pressing the reset button will cause the peripheral to lose communication with the system controller.
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Page 25: Cordex® Hp 4.0/4.6 Kw Rectifier Shelves
Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 4.4 Cordex® HP 4.0/4.6 kW Rectifier Shelves 4.4.1 Rectifier module features • High performance 83.3 A rectifier module for 48 V telecom applications. • High efficiency rectifier modules for reduced operating expense and carbon footprint. - Page 26 User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System Recommended: 7 3 to 6 3 (3P , 3W) 50 A 6 AWG 75 A × 0.91× 0.7 1 inch Maximum: 7 (16 mm = 48 A rating Based on NEC® 194°F (90°C) conductor, 104°F (40°C) ambient and number of wires in conduit. Including one ground per conduit.
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Page 27: Cordex® Hp 2.4/3.0 Kw Rectifier Shelves
Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 4.5 Cordex® HP 2.4/3.0 kW Rectifier Shelves 4.5.1 Rectifier module features • High performance compact 50 or 62.5 A rectifier module for 48 VDC telecom applications. • High efficiency rectifier modules for reduced operating expense and carbon footprint. •... - Page 28 User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System The recommended AC circuit breaker size and wire gauge are as follows: Table G: Recommended AC breaker size and wire gauge Rectifier shelf Recommended AC breaker size Recommended AC wire gauge 1-phase 2 ×...
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Page 29: Integrated Battery Trays
Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 4.6 Integrated battery trays The power system is designed to integrate battery trays installed below the power system. These battery trays can accept standard 12 V monoblocks ranging in height from 6 to 8RU. The battery trays are factory installed and pre-wired for ease of installation. -
Page 30: Remote Return Bar Kit
User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System Figure 24: Battery cable landing busbars 4.7 Remote return bar kit The external return bar kit is an alternate option for landing return connections from the loads. It serves as the common connection point for the positive side of the power section and the batteries. - Page 31 Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide The kits can be ordered with optional insulative covers as shown in the following image. Figure 26: Remote return bar kit with optional insulative covers 4.7.1 Interbay busing • The interbay busing option provides the user the capability to field expand a 1,200 or 2,000 A power system to a 2,400 or 4,000 A system.
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Page 32: Inspection
User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 5. Inspection 5.1 Packaging materials Alpha Technologies Ltd. is committed to providing products and services that meet our customers’ needs and expectations in a sustainable manner, while complying with all relevant regulatory requirements. As such we strive to follow quality and environmental objectives from product supply and development through to the packaging for our products. -
Page 33: Installation
Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 6. Installation Only qualified personnel should install and connect the power components in the Cordex® power system. For the battery installation, refer primarily to the manufacturer’s documentation. Reference is made to drawings located at the end of this document. Layout and schematic drawings are provided with the power system. - Page 34 User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 6.3.1 Installation Verify that all battery breakers, DC circuit breakers, and fuses on the distribution panels are either in the OFF position or removed. Apply a corrosion-inhibiting agent, such as Sanchem Inc. NO-OX-ID® A-SPECIAL electrical grease, on all battery terminal connections.
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Page 35: Battery Maintenance Report
Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 6.4 Battery maintenance report After assembly, number the batteries and take as received readings, including specific gravity, cell voltage, and temperature. Designate one cell as the pilot cell. This is usually the cell with either the lowest specific gravity or voltage. -
Page 36: Power System Assembly And Mounting
User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 6.5 Power system assembly and mounting The power system must be mounted in a clean and dry environment. Sufficient free space must be provided at the front and rear of the power system. This is to meet the cooling requirements of the rectifier modules and to allow easy access to the power system components. - Page 37 Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 4× 0.75 THROUGH 4× .94 × 0.325 SLOT THROUGH 15.00 9.63 13.00 18.14 23.50 25.50 Figure 29: Rack mounting details (top view), bolted rack 9400010-J0 Rev E...
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Page 38: Wiring
User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 7. Wiring This section provides cabling details and notes on cable sizing for DC applications with respect to the product. WARNING Ensure that the power is switched off by switching off rectifier modules and removing battery line fuses, turn off battery circuit breakers before attempting work on the wiring. -
Page 39: Grounding
Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide Table I: Cable size equivalents (Imperial to Metric) American Wire Gauge Circular mils Square millimeters Equivalent metric cable 350 MCM (or kcmil) 350000 177 .36 373 MCM (or kcmil) 373700 185 or 240 500 MCM (or kcmil) 500000 253.36... -
Page 40: Frame Ground
User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 7.2.1 Frame ground The power plant frame must be connected to the MGB or FGB. This connection is necessary for personnel safety and to meet many telecom grounding requirements. Use 2 AWG (35 mm²) or 0 AWG (50 mm²) wiring for frame ground. Remove paint in lug contact area to ensure a good electrical connection. -
Page 41: Front Access System: Ac Supply Wiring
Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 7 .3 Front access system: AC supply wiring To avoid future accessibility issues, connect the AC circuits to all rectifier shelves at the time of installation NOTICE Verify no rectifier modules are installed in the rectifier shelves at this time. 7.3.1 AC input terminal block assembly To access the AC input terminal block assembly, loosen the two front screws and the two rear screws on the AC terminal block top front cover as shown. - Page 42 User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 7.3.2 Top chassis conduit entry plate Two sizes of conduit knockouts are available on the top chassis conduit entry plate. Select and install the appropriate size conduit fitting and quantity for your application. Refer to conduit size tables in the previous AC wiring front access system section.
- Page 43 Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 7.3.4 Making AC input wire connections Route wiring through the previously installed conduit fittings, down through the wiring ducts and into the AC input terminal block assembly area. Connect input power and ground wires to the terminal blocks as per markings shown on labels matching your specific rectifier shelf configuration.
- Page 44 User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System Figure 37: 4.0 kW rectifier shelf AC input power wiring terminal block connections for 208 to 240 VAC, dual feed 1-phase option (typical) Figure 38: 4.0 kW rectifier shelf AC input power wiring terminal block connections for 208 to 240 VAC, 3-phase 3-wire option (typical) 9400010-J0 Rev E...
- Page 45 Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide Figure 39: 4.0 kW rectifier shelf AC input power wiring terminal block connections for 277/480 VAC, 3-phase 4-wire option (typical) Figure 40: 3.0 kW rectifier shelf AC input power wiring terminal block connections for 1-phase option (typical) 9400010-J0 Rev E...
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Page 46: Ac Supply For The Rectifier Modules
User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 7 .4 AC supply for the rectifier modules To ease future access issues, connect the AC circuits to all rectifier shelves at the time of initial installation. NOTICE Verify no rectifier modules are installed in the rectifier shelves at this time. 7.4.1 Standard system: AC wiring for the Cordex®... - Page 47 Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 7.4.3 CAN bus termination for field power system capacity expansion (interbay busing link kit) NOTICE If your system has redundant rectifier modules, it is recommended to power off the left most rectifier module in the bottom shelf of the existing bay during this procedure.
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Page 48: Standard System: Ac Wiring For The Cordex® Hp 2.4/3.0 Kw Rectifier Shelf
User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 7 .5 Standard system: AC wiring for the Cordex® HP 2.4/3.0 kW Rectifier Shelf 7.5.1 AC feeder protection and sizing To maximize system reliability, each feed should have a dedicated protection feeder breaker located at the AC distribution panel. - Page 49 Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 7.5.2 CAN bus termination for Cordex® HP 2.4/3.0 kW Rectifier Shelves Two CAN serial ports (modular jacks with offset latches), are provided for communications with rectifier modules and other CAN enabled equipment. These are located on the left-side of the rectifier shelf as viewed from the front.
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Page 50: Dc Wiring
User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 7 .6 DC wiring ATTENTION Leave cables or busbars disconnected at the battery and verify the output polarity using a voltmeter. Make battery connections only after all other wiring is completed. DC output wire must be UL approved XHHW or RHH/RHW (for Canadian users, RW90 Type). -
Page 51: Dual Voltage Conversion
Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 7 .7 Dual voltage conversion The staged tier is split into four sections. It is factory configured to supply two voltages: –48 VDC on the left section (positions 1 through 12), and +24 VDC on the right three sections (positions 13 to 24). The +24 VDC sections are joined by a link bar (see Figure 47). -
Page 52: High Capacity Breaker Alarm And Shunt Wiring
User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 7 .8 High capacity breaker alarm and shunt wiring Connect the alarm wire (–HOT) from the normally closed (NC) position on the breaker, to one of the available digital inputs on the Cordex® HP L -ADIO smart peripheral. 2. -
Page 53: Signal Wiring
Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 7 .9 Signal wiring Use the Form C relay contacts on the Cordex® HP L -ADIO smart peripheral to extend various alarm or control signals to an external site monitor. 2. Use 26 AWG (0.14 mm²) or larger wire. 3. - Page 54 User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 7.9.2 Analog inputs WARNING Ensure that the correct polarity is used for all input cable terminations. The analog input channels are used to monitor various types of electrical signals. Some of the analog channels are reserved for specific signals, while others are designated as general-purpose inputs, which accommodate various types of analog signals.
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Page 55: System Startup
Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 8. System startup After completing the system installation and power system wiring, perform the following startup and test procedure to ensure proper operation. Visually inspect the installation thoroughly. 2. Verify: • AC input power is off. -
Page 56: Factory Ranges And Default Values
User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 8.1 Factory ranges and default values The following table shows the rectifier module settings, ranges, and default values. Changes are made through the system controller interface. Table N: Rectifier module factory ranges and default values Range (minimum to Setting Default value... -
Page 57: Maintenance
Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide 9. Maintenance Although very little maintenance is required with Cordex® systems, routine checks and adjustments are recommended to ensure optimum system performance. Qualified service personnel should perform this work. The following table lists a few maintenance procedures for this system. These procedures should be performed at least once a year. -
Page 58: Troubleshooting
User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 10. Troubleshooting Shelves and modules are designed for simple installation and reliable, trouble-free operation. In most cases the modules will recover from minor alarms and faults automatically. However under certain conditions the modules may need remote control. And under very rare cases the module may need a manual reset (remove and reinsert the module). -
Page 59: Cordex® Hp L -Adio Low Voltage Smart Peripheral Leds
Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System User Guide OK (OK icon) Green Solid Indicates that there are no alarms. Flashing All LEDs cycle on initial startup. 10.3 Cordex® HP L -ADIO Low Voltage Smart Peripheral LEDs Table R: Cordex® HP L -ADIO low voltage smart peripheral LED states LED name Color State... - Page 60 User Guide Cordex® CXPS-W-FA, CXPS-W 2,000 A Power System 9400010-J0 Rev E...
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- Page 67 © 2025 Alpha Technologies Ltd., an EnerSys company. All Rights Reserved. Trademarks and logos are the property of Alpha Technologies Ltd. and its affiliates except for CEC®, CSA®, IEC®, NEC®, OSHA®, National Electrical Code®, UL®, NO-OX-ID®, Kydex®, and Scotch-Brite®, which are not the property of EnerSys.
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