Alpha Technologies Cordex HP User manual

Your Power Solutions Partner
Cordex HP 48-12kW/480
Modular Switched Mode Three-Phase Rectifier
Installation and Operation Manual
Part #0100020-J0
Effective 08/2017
member of The Group™

Cordex HP 48-12kW/480
Modular Switched Mode Three-Phase Rectier
For technical support, contact Alpha Technologies:
Canada and USA: 1-888-462-7487
International: [phone]
Copyright
Copyright © 2017 Alpha Technologies Ltd. All rights reserved. Alpha is a registered trademark of Alpha Technolo-
gies.
No part of this documentation shall be reproduced, stored in a retrieval system, translated, transcribed, or trans-
mitted in any form or by any means manual, electric, electronic, electromechanical, chemical, optical, or other-
wise without prior explicit written permission from Alpha Technologies.
This document, the software it describes, and the information and know-how they contain constitute the propri-
etary, confidential and valuable trade secret information of Alpha Technologies, and may not be used for any
unauthorized purpose, or disclosed to others without the prior written permission of Alpha Technologies.
The material contained in this document is for information only and is subject to change without notice. While
reasonable efforts have been made in the preparation of this document to assure its accuracy, Alpha Technolo-
gies assumes no liability resulting from errors or omissions in this document, or from the use of the information
contained herein. Alpha Technologies reserves the right to make changes in the product design without reserva-
tion and without notification to its users.
Alpha shall not be held liable for any damage or injury involving its enclosures, power
supplies, generators, batteries, or other hardware if used or operated in any manner or
subject to any condition inconsistent with its intended purpose, or if installed or oper-
ated in an unapproved manner, or improperly maintained.
Photographs contained in this manual are for illustrative purposes only. These photo-
graphs may not match your installation.
NOTE:
Operator is cautioned to review the drawings and illustrations contained in this manual
before proceeding. If there are questions regarding the safe operation of this powering
system, contact Alpha Technologies or your nearest Alpha representative.
NOTE:
NOTE:

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Table of Contents
1. Safety....................................................................................................................................5
1.1 Safety Symbols .......................................................................................................................... 5
1.2 General Safety ........................................................................................................................... 5
1.3 Mechanical Safety...................................................................................................................... 5
1.4 Electrical Safety ......................................................................................................................... 6
1.5 Battery Safety ............................................................................................................................ 6
2. Introduction ...........................................................................................................................7
2.1 Scope of the Manual .................................................................................................................. 7
2.2 Product Overview....................................................................................................................... 7
2.3 Part Numbers............................................................................................................................. 8
3. Specications........................................................................................................................9
3.1 Power Derating vs Ambient Temperature .................................................................................11
3.2 Power Operating vs Input Voltage ............................................................................................11
4. Rectier Features................................................................................................................12
4.1 Front Panel LEDs..................................................................................................................... 12
4.2 Rectier Rear Panel................................................................................................................. 14
4.3 True Module Fail Alarm ............................................................................................................ 14
4.4 Heat Dissipation....................................................................................................................... 14
4.5 Over Temperature Protection................................................................................................... 14
4.6 AC Inrush/Transient Suppression ............................................................................................ 14
4.7 Soft Start .................................................................................................................................. 14
4.8 Start Delay ............................................................................................................................... 14
4.9 Current Limit/Short Circuit Protection ...................................................................................... 15
4.10 Power Limiting ....................................................................................................................... 15
4.11 High Voltage Shutdown (HVSD) ............................................................................................ 15
5. Cordex HP Controller (CXC HP).........................................................................................16
5.1 Controller Features .................................................................................................................. 16
5.2 External Peripherals................................................................................................................. 17

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6. Inspection............................................................................................................................19
6.1 Packing Materials..................................................................................................................... 19
6.2 Check for Damage ................................................................................................................... 19
6.3 General Receipt of Shipment................................................................................................... 19
7. Installation...........................................................................................................................20
7.1 Safety Precautions................................................................................................................... 20
7.2 Tools Required ......................................................................................................................... 20
7.3 Power System Assembly and Mounting................................................................................... 21
8. Wiring..................................................................................................................................22
8.1 Grounding ................................................................................................................................ 22
8.2 AC Feeder Protection/Sizing.................................................................................................... 22
8.3 AC Input Connections .............................................................................................................. 23
8.4 DC Output Connections ........................................................................................................... 23
8.5 CAN Serial Ports (Rectier Shelf) ............................................................................................ 24
8.6 Shelf ID Connection ................................................................................................................. 25
8.7 Signal Wiring Connections to L-ADIO Board ........................................................................... 26
9. System Startup ...................................................................................................................28
9.1 Check System Connections..................................................................................................... 28
9.2 Verify AC and Power the Rectier Shelf................................................................................... 28
9.3 Triple Check Battery Polarity and Connections........................................................................ 28
9.4 CXC HP Reset ......................................................................................................................... 28
9.5 Rectier Modes ........................................................................................................................ 29
9.6 Factory Ranges and Defaults .................................................................................................. 30
10. Maintenance .....................................................................................................................31
10.2 Spares.................................................................................................................................... 31
10.3 Replacing a Rectier Module ................................................................................................. 32
10.4 Fan Replacement................................................................................................................... 33
10.5 MOV Replacement................................................................................................................. 34
11. Acronyms and Denitions..................................................................................................37
12. Warranty and Service Information ....................................................................................38
13. Certication.......................................................................................................................39

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List of Figures
Figure 1 — Cordex 48-12kW/480 .................................................................................................... 7
Figure 2 — Power Derating vs Ambient Temperature......................................................................11
Figure 3 — Power Derating vs Ambient Temperature......................................................................11
Figure 4 — 12kW Rectier front panel LEDs .................................................................................. 12
Figure 5 — Cordex CXC HP Controller (left and right side views).................................................. 16
Figure 6 — LCD Color Touchscreen Display .................................................................................. 17
Figure 7 — L-ADIO I/O Peripheral .................................................................................................. 17
Figure 8 — Shelf/Bay ID ................................................................................................................. 18
Figure 9 — CAN Port Connections ................................................................................................. 24
Figure 11 — Relay connections in the de-energized state ............................................................. 26
Figure 10 — Digital input connection method ................................................................................. 26
Figure 12 — Fan assembly - cover removal ................................................................................... 33
Figure 13 — Fan assembly - fan removal....................................................................................... 33
Figure 14 — Removing the thumb screws...................................................................................... 33

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WARNING!
WARNING presents safety information to PREVENT INJURY OR DEATH to personnel.
Warnings are indicated by a shock hazard icon, the word WARNING, and a rule beneath
which the information appears.
CAUTION!
CAUTION indicates safety information intended to PREVENT DAMAGE to material or
equipment. Cautions are designated with a yellow warning triangle, the word CAUTION,
and a rule beneath which the information appears.
1. Safety
SAVE THESE INSTRUCTIONS: This manual contains important safety instructions that
must be followed during the installation, servicing, and maintenance of the product. Keep it in a safe place. Re-
view the drawings and illustrations contained in this manual before proceeding. If there are any questions regard-
ing the safe installation or operation of this product, contact Alpha Technologies or the nearest Alpha representa-
tive. Save this document for future reference.
1.1 Safety Symbols
To reduce the risk of injury or death, and to ensure the continued safe operation of this product, the following
symbols have been placed throughout this manual. Where these symbols appear, use extra care and attention.
The use of ATTENTION indicates specic regulatory/code requirements that may affect the
placement of equipment and /or installation procedures.
NOTE:
A NOTE provides additional information to help complete a specic task or procedure.
Notes are designated with a checkmark, the word NOTE, and a rule beneath which the
information appears
HOT!
The use of HOT presents safety information to PREVENT BURNS to the technician or
user.
1.2 General Safety
WARNING!
This system is designed to be installed in a restricted access location that is inacces-
sible to the general public.
1.3 Mechanical Safety
• Keep hands and tools clear of fans. Fans are thermostatically controlled and switch on automatically.
• Power supplies can reach extreme temperatures under load.
• Use caution around sheet metal components and sharp edges.

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1.4 Electrical Safety
WARNING!
WARNING!
WARNING!
• Before working with any live battery or power system, follow these precautions:
a. Remove all metallic jewelry, such as watches, rings, metal rimmed glasses, or necklaces.
b. Wear safety glasses with side shields at all times during the installation.
c. Use OSHA approved insulated hand tools.
Lethal voltages are present within the power system. Always assume that an electrical
connection or conductor is energized. Check the circuit with a voltmeter with respect to
the grounded portion of the enclosure (both AC and DC) before performing any installa-
tion or removal procedure.
• Do not work alone under hazardous conditions.
• A licensed electrician is required to install permanently wired equipment. Input voltages can range up to
480Vac. Ensure that the utility power is disconnected and locked out before performing any installation or
removal procedure.
• Ensure that no liquids or wet clothes come into contact with internal components.
• Hazardous electrically live parts inside this unit are energized from the batteries even when the AC input
power is disconnected.
1.5 Battery Safety
• Servicing and connection of batteries must be performed by, or under the direct supervision of, personnel
knowledgeable of batteries and the required safety precautions.
• Always wear eye protection, rubber gloves, and a protective vest when working near batteries. Remove all
metallic objects from your hands and neck.
• Use OSHA approved insulated hand tools. Do not rest tools on top of batteries.
• Batteries contain or emit chemicals known to cause cancer and birth defects or other reproductive harm.
Battery post terminals and related accessories contain lead and lead compounds. Wash your hands after
handling batteries.
Follow battery manufacturer’s safety recommendations when working around battery
systems. Do not smoke or introduce an open ame when batteries (especially vented
batteries) are charging. When charging, batteries vent hydrogen gas, which can ex-
plode.
• Batteries are hazardous to the environment and should be disposed at a recycling facility. Consult the bat-
tery manufacturer for recommended local authorized recyclers.
Hazardous voltages are present at the input of power systems. The DC output from rec-
tiers and batteries, though not dangerous in voltage, has a high short-circuit current
capacity that may cause severe burns and electrical arcing.

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2. Introduction
2.1 Scope of the Manual
This instruction manual explains the installation, interconnection, and operation of the Alpha Cordex HP 48-
12kW/480 modular switched mode rectifier systems.
2.2 Product Overview
Cordex High-Performance rectifiers make a proven, reliable platform even better, with significant advancements
in efficiency and performance. In a compact, fan-cooled design, Alpha's HP rectifiers open the possibility for
immediate OPEX/CAPEX savings, reducing total cost of ownership and impact on the environment, and are
usable under a wider range of applications.
The Cordex HP 48-12kW/480 is a perfect solution for various 48Vdc high capacity applications including Central
Office, MTSOs and Data Centers.
Cordex HP 48-12kW/480 is a true three-phase, three wire, 480 VAC input rectifier which meets the critical require-
ments of current high density telecommunications environments. It combines the latest DSP controlled power
conversion technology, to provide a flexible, efficient, and very highly reliable DC power source.
Local and remote setup, adjustment and control is a simple single-step process with CXC HP controllers. By
utilizing TCP/IP technology, complete configuration and monitoring of power equipment is possible through a
network web browser.
The CXC HP controller allows the user to configure, monitor and control the entire DC power system from its
touch screen display including temperature compensation, auto equalization, remote access, dial out on alarm,
battery diagnostics, as well as Web server and SNMP support for configuration and monitoring. Details of CXC
HP controller operation are provided in the current version software manual.
Figure 1 — Cordex 48-12kW/480

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2.3 Part Numbers
The product, options, and accessories can be ordered by using the following part numbers:
Description Part Number
Cordex 48-12kW rectier power module 0100020-001
Fan, spare for Cordex 48-12kW/480 7400564-001
MOV replacement assembly 7050308-001
Cordex 48-12kW/480V, 3 phase 23" shelf, ush or mid-mounting 0300167-XXX
Module blank 5900550-002
Cordex CXC HP Controller (CXC HP) 0180046-010
Shelf /Bay ID (CXC HP) 0180050-001
Cables (shelf to shelf) 877-176-50
Cables (CXC HP to shelf) 877-176-23
Shelf ID Comm Cable (12kW) 8700873-001

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3. Specifications
Electrical
Power Module Output
Voltage: 42 to 58 Vdc within rated limits
Maximum current: 220 A
Maximum power: 12kW continuous(@ 54.5V), 10.56kW continuous (@ 48V)
Static load regulation: Better than ±0.5% for any load within rated limits, under control of Cordex Controller
Dynamic load regulation: Better than ±4%, 40 - 90% load step
(output shall recover to static limits within 30 ms)
Static line regulation: Better than ±0.1% for any change in input voltage within rated limits, under control of
Cordex Controller
Hold-up time: ≥5ms
Time stability: ≤ 0.5% per year, under control of Cordex Controller
Temperature stability: < 300 ppm/°C over the operating range
Heat dissipation: <2800 BTU/hr (825W)
Electrical noise:
Voice band: <42dBrnC
Wide band: <20mV RMS (10kHz to 10MHz)
<150mV peak to peak (10kHz to 100MHz)
Psophometric noise: <4mVrms
Acoustic noise: <65dBa @ 1m (3ft), 30°C (86°F)
Power Module Input
Voltage:
Nominal: 430 - 530Vac (3ø – 3 Wire + PE)
Operating Range: 410 - 530Vac (3ø – 3 Wire + PE)
NOTE: Neutral is not required at rectier or shelf.
Input Voltage Phase
Imbalance: 10% max
Current: Nominal: 15A (per phase)
Maximum: 17A (per phase)
Inrush Current: <15Apk (per phase at 480VAC, 25°C, excluding X-capacitor charging)
Input Leakage Current: < 6 mA @ 480 Vac 60 Hz
Frequency: 47 to 63Hz
Power Factor: >0.96 (50%-100% load)
Total Harmonic
Distortion(THD): <5% from 70-100% load
Efciency: >94.2 for 40-80% load; peak 94.7% at 60% load
Start-up Ready Time: < 5 seconds (excluding soft start)
Start-up Delay: ≤ 120 seconds (programmable)
Soft Start: ≤ 8 seconds (user adjustable, not including start-up)
Mechanical
Dimensions (WxHxD): 261 x 160 x 326 mm (10.3 x 6.25 x 11.8 in)
261 x 175 x 364 mm (10.3 x 7 x 14.38 in) including front panel and handle
Module Weight: 12.8kg (28.4lbs)

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3.3.1 Cordex 48-12kW Rectifier Shelves
23 in 4RU universal mount 24,000W shelf P/N 0300167-001
Number of Rectiers: 2 x CXRF HP 48-12kW
Nominal AC input current (one module
per feed):
15Arms @ 480Vac
2 feeds per shelf
Recommended input feeder breakers: 30A per feed or 50A per shelf
Recommended AC input wire size: 12 AWG (RW90) minimum
Shelf output voltage: 42 - 58Vdc
Shelf output power: 24kW maximum
Distribution: Bulk power for external distribution
Dimensions:
H x W x D
177mm x 530mm x 388mm
7in x 21.1in x 15.3in
Weight: 11.3kg (25lbs)
Communications ports: CAN: interface to control rectiers & smart peripherals
Shelf ID RJ12 connection
Agency Compliance
Safety: CSA 60950-1-07
UL 60950-1
EMC:
Emissions: CFR47 (FCC) Part 15 Class A
EN 55022 (CISPR 22) Class A
Immunity: EN 61000-4-2
EN 61000-4-3
EN 61000-4-4
EN 61000-4-5
EN 61000-4-6
NEBS: GR-63-Core
GR-1089-Core
In accordance with FCC requirements, we provide the following statement as specified in the FCC guidelines for
conformance to Part 15, Class A.
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications.
To comply with regulations in terms of radiated emissions, the CAN communication cable shall be wound in two
loops around a ferrite p/n 417-401-10/19 (Fair-Rite p/n 0446167251), placed close to the socket in the shelf. The
shelf ID power cable pair shall be wound in 1 loop around a ferrite P/N (4170000) (Fair-Rite P/N 0446167281).
Any changes or modifications to this equipment not expressly described in this manual could void the FCC com-
pliance.
Environmental
Temperature:
Operation:
-10° to 65°C
0° to 40°C full nominal power output, see "Figure 2 — Power Derating vs Ambient
Temperature" on page 11.
Storage: -40° to 70°C (-40 to 158°F)
Humidity: 0 to 90% RH non-condensing
Elevation: -100 m to 2000 m (-330 feet to 6500 feet)

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Figure 2 — Power Derating vs Ambient Temperature
3.1 Power Derating vs Ambient Temperature
For ongoing reliability of the rectifier, the output power is reduced when the ambient temperature is very high or
very low, see Figure 2.
3.2 Power Derating vs Input Voltage
The output power is reduced when the input voltage drops below 430Vac, see Figure 3.
Figure 3 — Power Derating vs Input Voltage

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4. Rectifier Features
4.1 Front Panel LEDs
The front panel LEDs indicate:
• Rectifier status summary
• Rectifier software upgrade in progress
• Patterned response to Locate Module command
The rectifier status summary shows the rectifier alarm status, communication fail status, and rectifier on/off status.
AC ON (1)
The green LED is illuminated when the AC input voltage is within its allowable range.
DC ON (2)
The green LED is illuminated when the rectifier is providing DC output voltage.
Figure 4 — 12kW Rectifier front panel LEDs
Thumbscrews
Status LEDs
321

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ALARM (3)
The red LED is illuminated when a major alarm is detected and the module is unable to source power because of
any of the following conditions:
Output fuse open AC Input voltage high
Over voltage protection (OVP) shutdown AC Input voltage low
UPF/Converter failure Sense Leads -interlock
AC input voltage fail Internal SCI communication lost
Thermal shutdown AC Input Frequency Low
No output power/ ramp test fail AC Input Frequency High
Fan failure shutdown Primary imbalance
Input OCP Output OCP
Power Factor Correction (PFC) Output Voltage Failure Module fail
The LED flashes (~2Hz) when a minor alarm is detected if the modules output capability has been reduced or a
minor component failure is detected during the following conditions:
AC foldback Remote equalize
Fan Speed Error Power limit Temperature foldback
Current limit Soft start fail Can Communication lost
Startup pending EEPROM invalid
The LED remains extinguished in the absence of an alarm.
LED Activity During Software Upload
When a rectifier software upload is in progress, the LEDs flash in a distinct pattern to indicate new rectifier soft-
ware is being transferred from the CXC HP. All three LEDs flash in a sequence lasting 1.5 seconds. When the last
LED is lit, the sequence is repeated beginning at the first LED.
LED Activity During the ‘Locate Module’ Command from CXC HP
The ‘Locate Module’ command from the CXC HP, causes the target rectifier LEDs to flash in a ping-pong pattern
that repeats every 2 seconds. Each LED illuminates sequentially and after the last LED illuminates, the sequence
is reversed. When the first LED is illuminated, the pattern repeats. This effect makes it appear that the light
bounces between the first and last LED.
Mechanical
Two thumbscrews are provided to secure the rectifier into the shelf. During normal operation, the rectifier must
be locked into position. A handle or grip on the front panel helps to remove the rectifier from the shelf. No special
tools are required.

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4.2 Rectifier Rear Panel
The 12kW rectifier has three connectors for shelf power and communications on the rear panel. These three con-
nectors align with corresponding connectors in the shelf when the rectifier is installed.
4.3 True Module Fail Alarm
The power modules have a “true” fail alarm that provides a true indication of the power module’s ability to source
current. When the module’s output current drops below 2.5% of the rated output, a low output current condition is
detected and the Module Fail detection circuit is activated. This circuit momentarily ramps up the output voltage
to determine if the module will source current. If no increase in current is detected, the Module Fail alarm is acti-
vated. The module will test once every 60 seconds for the condition until a current is detected. The output voltage
ramping ceases upon detection of current. A minimum 2.5% load is required to avoid the Ramp Test Fail alarm.
This can be provided with the parallel system battery. Activation of this alarm could indicate a failed module or a
failed load.
For Cordex rectifier systems without batteries, or with a very light load below 2.5% of the rated output, the ramp
test should be disabled to avoid nuisance alarms.
4.4 Heat Dissipation
Each rectifier module is equipped with two front-mounted variable speed fans. The air flow is front-to-rear with the
exhaust air exiting at the back. The fan speed is determined by the heatsink temperature and the load.
4.5 Over Temperature Protection
Component failure or a cooling airflow blockage can result in an excessive increase in temperature. During over-
temperature conditions, the rectifier limits the output power and the output current. If the temperature continues to
increase, the rectifier is shutdown. The rectifier restarts automatically when the temperature returns to a safe level.
4.6 AC Inrush/Transient Suppression
To prevent a surge on the AC line, the inrush current of a rectifier module is limited to the full load steady state line
current. Modules are also protected from input lightning and transient surges.
4.7 Soft Start
A soft start feature is used to eliminate an instantaneous demand on the AC power source. A soft start, some-
times referred to as a “current walk-in”, works by gradually (up to five seconds) ramping up the current limit from
zero to the actual or defined customer setting. The rectifier output voltage is ramped from the minimum voltage to
the float voltage.
4.8 Start Delay
The rectifier modules are equipped with a delay timer to stagger-start a series of modules to prevent excessive
loading of generators upon start up. The built-in timer delays the switching on of the module by an interval (up to
120 seconds), which is set in the CXC HP. A minimum one-second delay is preset to allow the input capacitors to
charge.

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4.9 Current Limit/Short Circuit Protection
The current limit function determines the maximum output current limit of the rectifier module, regardless of the
output voltage or power. The maximum output current is limited to a constant value. Current limiting can be used
to mate the rectifier output current ampacity to the needs of the load and parallel battery to minimize excessive
battery recharge currents.
The rectifier will sustain a short circuit at the output terminals indefinitely. The maximum short circuit current will
not exceed 105% of the rated full load current.
4.10 Power Limiting
Each rectifier module is designed to limit the power output to the module specification.
NOTE:
The current limiting feature overrides the power-limiting feature.
4.11 Over Voltage Protection (OVP)
This feature protects the load from over-voltages originating in the rectifiers. The offending rectifier module is shut
down when a high output voltage condition occurs. The red Alarm (Module Fail) LED will illuminate. The module
will restart automatically. However, if more than eight over-voltage conditions occur within one minute, the module
will latch off and remain shut down.

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5. Cordex HP Controller (CXC HP)
The Cordex™ HP (CXC HP) controller provides centralized setup, control and monitoring of power systems. This
ranges from simple monitoring and threshold alarms for temperature, voltage and current, to advanced battery
charging and diagnostic features.
The controller supports dual Ethernet ports and a 4.3” LCD screen to allow simultaneous network, LCD and local
laptop access to the controller including both web and SNMP interfaces.
The CXC HP supports to dual CAN ports to allow up to 256 power and/or ADIO modules to be controlled and
monitored. The controller uses external analog and digital input and output (ADIO) peripherals to monitor electri-
cal signals (temperature, voltage, temperature) and generate electrical signals through relays.
The most commonly used ADIO peripheral is the L-ADIO for low voltage systems which includes:
• 8 digital inputs
• 4 voltage sensors
• 4 temperature sensors
• 4 current sensors
• 12 Form C relay outputs
Figure 5 — Cordex CXC HP Controller (left and right side views)
5.1 Controller Features
The CXC HP has the following features:
• Front touchscreen: full color LCD touchscreen display, to access controls and menu items by using fingertip
touch or a stylus.
• Home button: provides the ability to go directly back to the home screen from any menu.
• Front panel reset: for emergency use only to restart the CXC HP if the unit touch screen or home button are
not responding.
• Front panel LEDs: for alarms, progress and status indication.
• Audio speaker: built-in audio tones during active alarms, and can be disabled if required.
• Ethernet: dual ports 10/100 BaseT Ethernet connection on both the front and rear of the controller for remote
or local communication.
Ethernet
(rear
USB (rear)
USB (front)
Ethernet (front)
Status LEDsLCD screen
Home
Reset

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Figure 6 — LCD Color Touchscreen Display
• USB: dual ports on both the front and rear of the controller for upgrades and file management via a standard
USB flash drive.
• CAN: dual independent CAN bus ports for communication with the Alpha Cordex™ and AMPS family of
products, which allows for a greater number of devices.
• Real-time clock with field replaceable lithium battery: allows for timestamps on alarms and events.
• System fail alarm/relay: which activates when there is a major internal failure. During such a condition the
unit attempts to reset.
5.2 External Peripherals
5. 2.1 L-ADIO
The L-ADIO is the standard analog and digital I/O peripheral for low voltage (<60Vdc) systems. The L-ADIO com-
municates on CAN bus to the controller and provides user access to I/O management via the CXC HP controller.
Figure 7 — L-ADIO I/O Peripheral
Power Input
LVD Override
3 LED Status
Indicators
Reset
CAN Ports
Analog Inputs
Four voltage inputs, V1 – V4, are provided for a variety of voltage monitoring requirements. The input channels
can measure a signal between -60Vdc to +60Vdc.
Four current input channels, I1 – I4, provide monitoring of current; e.g., discharge (load) and charge (battery).
The CXC HP is capable of monitoring standard shunts of 25, 50 and 100mV as well as application specifications
of up to 250mV. The shunt current rating can be configured via the controller and is set by default to 800A 25mV.
The input range for this signal is -250mV to +250mV.
Four temperature input channels, T1 – T4, provide monitoring of temperature probes (thermistors). These are typi-
cally used for either ambient temperature, or for battery post monitoring to enable battery temperature compen-
sation. The temperature sensor is provided by Alpha in various lengths. The input range for this signal is 0V to 5V
and is powered internally from the L-ADIO.

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Digital Inputs
The L-ADIO can accommodate up to eight digital input channels, D1 – D8. Each channel responds to a zero
or system voltage potential at the input to activate or deactivate the appropriate condition. These channels can
monitor digital alarm/control signals from rectifiers, converters and many other types of equipment. An additional
digital input, “EXT” is reserved for monitoring an external LVD override.
Alarm and Control Output Relays
Each L-ADIO contains twelve Form C alarm output relays to extend alarms and to control external apparatus.
Each internally generated alarm or control signal may be mapped to any one of the 12 relays, several signals may
be mapped to just one relay or none at all.
LED Indication
Each L-ADIO contains three LEDs for peripheral status indication.
LVD – Yellow = LVD Override Engaged
Power – Blue = Power present to device
Comms – Green = L-ADIO has been acquired by CXC HP
Front Panel Reset Button
A reset button is located on the front panel. It takes approximately 15 seconds before the unit is reacquired after
pressing the reset button.
During a reset condition, the L-ADIO will keep relays in their last known state to prevent false alarm notifications
and possible changing system LVD states.
CAUTION – Pressing the reset button will cause the L-ADIO to lose communication with the controller.
LVD Override
An LVD Override button is provided to keep any relays assigned to LVD function in a static state. The override
function should be used whenever performing controller maintenance such as test relay functions, or when re-
placing a CXC HP controller.
To engage the LVD override function, press and hold the button for three seconds. A yellow indicator LED will sig-
nal that the override is engaged. To restore back to normal LVD operation, press and hold the LVD button again
for three seconds.
5.2.2 Shelf/Bay ID
The CXC HP Shelf/Bay ID peripheral enables users to identify individual 12kW/480 (3-phase) rectifier modules by
their specific bay and shelf location within the system. This peripheral is an independent module which broad-
casts information directly to the rectifier modules. 12kW/480 rectifiers can then communicate the specific bay,
shelf, and slot identification back to the master CXC HP controller. The controller’s LCD screen and web interface
provide details on the physical location via each module within the system.
The Shelf/Bay ID peripheral only requires the user to manually select the Bay ID from the front panel. Shelf loca-
tion is determined by factory installed internal system wiring, and the 12kW/480 rectifiers determine their slot
position automatically within a shelf.
Figure 8 — Shelf/Bay ID
Bay ID Display
Up Button
Reset Button
Down Button