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Cordex Controller
User Manual Ver.3.1x
144 pgs24.34 Mb4
User Manual Ver.2.0
126 pgs4.72 Mb1
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Alpha Cordex Controller User Manual Ver.3.1x

Cordex Controller Software Manual, Version 3.1x
User Manual
Part # 0700015-J0
Effective: 04/2012
member of The Group
™
Your Power Solutions Partner
Cordex Controller Software Manual
Version 3.1x
This software is compatible with Expanded Memory CXC
Controllers only.
NOTE:
Photographs contained in this manual are for illustrative purposes only. These photographs 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:
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 not consistent with its intended purpose, or is installed or operated in an unapproved manner, or improperly maintained.
For technical support, contact Alpha Technologies:
International: +1-604-436-5547
Email: support@alpha.ca
Copyright
Copyright © 2012 Alpha Technologies Ltd. All rights reserved. Alpha is a registered trademark of Alpha Technologies.
No part of this documentation shall be reproduced, stored in a retrieval system, translated, transcribed, or transmitted in any form or by any means manual, electric, electronic, electromechanical, chemical, optical, or otherwise without prior explicit written permission from Alpha Technologies.
This documentation, the software it describes, and the information and know-how they contain constitute the proprietary, 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 Technologies 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 reservation and without notification to its users.
Contents
1. Introduction ..................................................................................................................... 6
1.1 Scope of the Manual .......................................................................................................6
1.2 Software Overview ..........................................................................................................6
2. Standard Features .......................................................................................................... 7
2.1 Password Security ..........................................................................................................7
2.2  Software Conguration Loading and Updates ................................................................7
2.3 Customizable User Interface ...........................................................................................7
2.4  Mixed Rectier System ...................................................................................................8
2.5 Safe Voltage ....................................................................................................................8
2.6 Power Save .....................................................................................................................8
2.7 Auto DC Priority ...............................................................................................................8
2.8 Battery Temperature Compensation ...............................................................................8
2.9 Battery Auto Equalization ................................................................................................9
2.10 Battery Monitor and Charge Current Control ..............................................................10
2.11 Battery Test Scheduler ................................................................................................10
2.12  Low Voltage Disconnect Operation .............................................................................10
2.13 Signals Management ..................................................................................................10
2.14 Statistics and Historical Data ...................................................................................... 11
3. User Interface Options .................................................................................................. 13
3.1  LCD Graphical User Interface .......................................................................................14
3.2 Home Screen (Default Operating Screen) ....................................................................14
3.3  Contrast Adjustment of the GUI ....................................................................................14
3.4  Menu Navigation - LCD .................................................................................................15
4.  Operation using the LCD GUI ....................................................................................... 19
4.1 Start-up .........................................................................................................................19
4.2  Language Selection ......................................................................................................19
4.3 Date and Time ...............................................................................................................20
4.4 Resetting and Powering Down ......................................................................................20
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4.5  Alarm Display and Conguration ...................................................................................21
4.6 Signals Display ..............................................................................................................22
4.7  Rectiers (and Converters) Information ........................................................................24
4.8 Voltage Mode Status and Temp Comp Settings ............................................................25
4.9  Float (FL) Mode .............................................................................................................26
4.10 Equalize (EQ) Mode ....................................................................................................26
4.11 Boost (BST) Mode .......................................................................................................26
4.12 Battery Discharge Test or Battery Test (BT) Mode ......................................................26
4.13 Communications .........................................................................................................28
5. Operating with the Web and Panel PC Interface .......................................................... 29
5.1 Communication Settings ...............................................................................................29
5.2  Getting Started ..............................................................................................................30
5.3  Login .............................................................................................................................31
5.4  Language Selection ......................................................................................................31
5.5 Saving Changes ............................................................................................................31
5.6 Date & Time ..................................................................................................................32
5.7  Alarm Display and Conguration ...................................................................................32
5.8 Converters .....................................................................................................................33
5.9  Rectiers .......................................................................................................................33
5.10 Inverters ......................................................................................................................33
5.11 Battery Mode and Temp Comp Settings ......................................................................33
5.13  Saving Conguration Files ..........................................................................................34
5.12 Resetting the CXCU Controller ...................................................................................34
5.14 Summary of Menu Navigation .....................................................................................35
6.  System Conguration: Programming and Adjustments ................................................ 36
6.1 System Info ...................................................................................................................36
6.2 Converters .....................................................................................................................39
6.3  Rectiers .......................................................................................................................39
6.4 Inverters ........................................................................................................................43
6.5 Batteries ........................................................................................................................50
6.6 Alarms ...........................................................................................................................57
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6.7 Signals ..........................................................................................................................70
6.8 Controls .........................................................................................................................89
6.9 Communications ...........................................................................................................91
6.10 Hardware .....................................................................................................................93
6.11  Logs & Files (Web Interface only) ...............................................................................94
6.12 Supervisor ...................................................................................................................96
7. Advanced Programming................................................................................................ 98
7.1 Example: Customize .....................................................................................................98
7.2 Equation Builder Keypads .............................................................................................98
7.3 Tips on Programming ....................................................................................................99
8. CXC Communications Menu Parameters ................................................................... 100
8.1  Ethernet Port Conguration .........................................................................................100
8.2 PPP Connection Devices ............................................................................................101
8.3  Rear Port Conguration ..............................................................................................102
9. Remote Communications............................................................................................ 104
9.1 Establishing a Network Connection via a Crossover Cable ........................................104
9.2 PPP Serial Data Connection .......................................................................................105
9.3 Modem Connection ..................................................................................................... 111
10. Simple Network Management Protocol (SNMP) ........................................................113
10.1 Overview ...................................................................................................................113
10.2 Network Manager MIB Files ...................................................................................... 11 5
10.3  Communication Conguration ................................................................................... 11 6
11. Factory Ranges and Defaults .................................................................................... 120
12. Modbus® Communications Protocol ........................................................................ 131
13. Trouble-shooting ....................................................................................................... 139
14. Alpha Conventions .................................................................................................... 140
14.1  Acronyms and Denitions ..........................................................................................140
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List of Tables
Table A — Web Interface Menu Structure ........................................................................................37
Table B — Output channel assignments ..........................................................................................60
Table C — Digital input channel assignments..................................................................................61
Table D — Analog input channel assignments.................................................................................70
Table E  —  Controller signal default denitions ................................................................................72
Table F  —  Rectiers menu defaults ...............................................................................................120
Table G  —  Converters menu defaults ............................................................................................120
Table H — Batteries menu defaults ...............................................................................................121
Table I — Alarms menu defaults ....................................................................................................122
Table J — Controls menu defaults .................................................................................................123
Table K — Communications menu defaults ...................................................................................124
Table L  —  Hardware menu defaults ...............................................................................................124
Table M — Supervisor menu defaults ............................................................................................124
Table N — Signals menu defaults ..................................................................................................124
Table O  —  Inverter Global Settings ...............................................................................................125
Table P — Inverter Parameters ......................................................................................................126
Table Q — Inverter Alarm Settings.................................................................................................130
Table R  —  Table N–CXC Modbus PDU address denition for function code 0x01 (read coils) .....131
Table S  —  CXC Modbus PDU address denition for function code 0x02 (read discrete inputs) ...132
Table T  —  CXC Modbus PDU address denition for function code 0x03 (read holding registers) 136
Table U  —  CXC Modbus PDU address denition for function code 0x04 (read input registers) ...138
Table V — Trouble-shooting guide .................................................................................................139
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1. Introduction

1.1 Scope of the Manual

This document describes the software features, on-site setup, and operation of the Cordex System Con­troller (CXC) from Alpha Technologies. A basic understanding of Ethernet, TCP/IP, SNMP, RS-485, and CAN bus functionality is required.
Refer to the Installation manual for hardware details.

1.2 Software Overview

The CXC software enables control of an entire DC + AC power system via the CXC central touch screen user interface or web based monitoring and control interface. The software also allows the user to control temperature compensation, auto equalization, remote access, and battery diagnostics.
The CXC is an integrated Alpha Cordex Controller designed to provide universal control for Alpha Group products.
The CXC has Ethernet capability that supports a web interface and SNMP for customer access to the equipment it is monitoring.
The CXC also has a CAN bus for communication with the Cordex rectifiers and other peripheral equip­ment.
1. 2.1 User Interface (UI)
Version 3.1x of the software is compatible with Expanded Memory CXC Controllers only. For each con­troller, a user can use either a touch screen or a web interface to set up and manage the system.
Remote communications over the web interface can be established with the step-by-step connection wizard available from the Alpha website (www.alpha.ca.ca) or refer to Chapter “9. Remote Communica­tions” on page 104 for detailed instructions.
1. 2.1.1 LED lights
Each CXC has three LEDs located on the front panel. These LEDs are used to display the alarm status of the power system, CXC progress and status during startup, and file transfers.
1.2.1.2 Alarm conditions
When an alarm occurs, an LED illuminates corresponding to the following system alarm status:
• Green – OK, no alarms present.
• Yellow – Minor alarm is present (no major alarms).
• Red – Major alarm is present.
Only one LED is illuminated at a time during alarm conditions.
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2. Standard Features

The following are new features in Version 3.1x:
• Retrieve inverter history file—see 6.4.8.2)
• Inverter alarms reported in the Event log—see 6.4.8.1
• Synchronization of the real time clock of the inverter controller (T2S) with the Cordex controller RTC
• Support of new CXCi+ hardware

2.1 Password Security

NOTE:
Three levels of password security are available: Supervisor (1234), User (5678) and Viewer (0000). A Supervisor has write access to all editable fields. A User has permission to update inventory, make volt­ages changes and navigate through menus. A viewer can view all menus, but does not have permission to make any changes.
The User password can only changed by the Supervisor from the web interface (see 6 .12 .1). Viewer login is described in the next section.
Basic authentication is cached in Firefox and the Panel PC, so that the client is not prompted to re-enter the password again after logging out. Closing the browser clears the cache and prevents use by unathorized personnel.
2.1.1 Client Login Control
It is possible to have multiple users logged onto the controller. The following table shows the distribution of allowed logins. (Both a User and a Supervisor are considered to have write access and only one can be logged on at a time.)
Web Clients LCD Clients
Number of Viewers User
1-2 0 1 0
1-2 0 0 1**
1-2 1* - -
- - - 1**
or Supervisor
(Only 1 person can work with the
LCD)
Number of Viewers User
or Supervisor
* A User or Supervisor login to the web interface prevents any logins at the LCD - a 
viewer currently logged on to the LCD will not be able to log back in if he logs off.
** A User or Supervisor login to the LCD prevents any logins at the web interface- a 
viewer currently logged on to the web will not be able to log back in if he logs off.
2.2 Software Configuration Loading and Updates
Factory software updates and adjustments to the configuration file are possible through the Ethernet con­nection. The Supervisor can exclude settings and groups of settings when applying changes. A partial configuration file can also be generated and sent to the CXC (v1.81 and above).

2.3 Customizable User Interface

The web interface can be customized to remove web browser elements that are of no interest to the user. This menu for customizing the user interface is located in Supervisor > Customize User Interface. When a group is unchecked, all related UI elements are removed from the browser. This includes menu items, summary information in the View Live Status and signals and alarms.
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2.4 Mixed Rectifier System
All controllers, except the CXCU, allow one type of Alpha Pathfinder model rectifier to work in parallel with one type of Alpha Cordex model rectifier, for example, a PFM 48V-10kW or PFM 48V-3kW with a CXRF 48-3.6kW. Another example is a PFM 24V-3kW with a CXRF 24-3.1kW. The load share of each rectifier is based on the percentage of the maximum output current of the rectifier; see Rectifier Report (4 . 7. 2 ).
The Pathfinder rectifiers are not shown under Upgrade Firmware as that submenu applies to Cordex rectifiers and smart peripherals only.

2.5 Safe Voltage

The Safe Voltage is the voltage that the rectifiers default to if they lose communications with the controller.
The Supervisor can set the default system voltage (Safe Mode) that will be used if the communications to the Cordex rectifiers fails. This feature has a time delay that varies according to the rectifier. Most rectifi­ers will revert to Safe Mode after five (5) minutes. The rectifier manual lists the default parameters.
Note: In general, the open circuit voltage for VRLA batteries is determined to be a point where discharge or over charge will not occur.

2.6 Power Save

The Power Save feature enables the Supervisor to improve operational efficiency by running only the necessary number of rectifiers. For example, when the load is significantly less than the available system power, the controller shuts down one or more of the rectifiers so that the remaining rectifiers operate with greater efficiency at a higher current level. A short (one-minute) time delay or hysteresis is built in to avoid nuisance alarms and to prevent changes if the load is fluctuating.
With Power Save, rectifier usage rotates on a weekly basis to share the service time. Power Save comes into effect when a minimum discharge or load current (~2.5% of maximum current of one rectifier) is achieved. Battery charge current limit calculations are based on the rectifiers that are running.
The Power Save feature is suspended during Battery Test mode. See 4.12 . 4.
NOTE:
The Remote Shutdown setting must be enabled for the rectier (see Rectiers > Congure Rectiers) to operate in Power Save.

2.7 Auto DC Priority

The inverters can be configured to automatically switch to DC Priority mode when a custom alarm is acti­vated. The alarm could be triggered by a digital input such as a signal from an alternative energy source – a fuel cell for example that has just switched on.
When the custom alarm activates, the CXC automatically switches the Inverters to draw from DC power as much as possible. When the alarm is deactivated, the command is sent to return to AC Priority. (Cus­tom alarms are configured from Alarms-> Configure Alarms.)
For more information, see section 6.4.7.

2.8 Battery Temperature Compensation

The automatic battery temperature compensation feature (Temp Comp or TC) works with Cordex series rectifiers that support CAN bus communications and Pathfinder series rectifiers that support RS-485 remote communications. Temp Comp may be active in either the Float (4.9) or Equalize (4.10 ) mode.
Temperature inputs are available on the CXC for monitoring a lead acid battery string. Temperature sen­sor readings can be displayed on the GUI in either the Celsius (°C) or Fahrenheit (°F) scales.
The CXC has the flexibility to display the breakpoints in voltage and temperature. The breakpoints can be entered as voltages or temperatures.
The detection of a thermal runaway is limited to a programmable Battery Over Temperature Alarm. The Supervisor can select the temperature that triggers an alarm.
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2. 8.1 Theory of Battery Temperature Compensation
The battery life expectancy and performance is directly related to the battery ambient temperature. The optimum battery temperature during operation is 25°C (77°F). Without compensation, battery life is seri­ously compromised at temperatures above 25°C, while battery performance is reduced below 25°C.
Adjusting the battery’s float or equalize voltage to correspond with temperature fluctuations ensures maximum battery performance and life expectancy. With the CXC, this can be accomplished by using the software’s built-in automatic temperature compensation function. This function adjusts the system voltage, ever 60 second, as the temperature changes and provides for a maximum voltage change of
0.1V over this interval.
Temp Comp occurs at standard rates commonly referred to as slope-compensation settings. For maxi­mum performance, the battery slope compensation must be matched to the setting recommended by the battery manufacturer. Do not confuse this with the slope regulation, which refers to the process of regulat­ing the current among a group of parallel-operating rectifiers.
The Temp Comp feature uses programmable breakpoints, which are the points that Temp Comp ceases. Further temperature decreases or increases do NOT increase or decrease the output voltage. This pro­tects the connected load and battery from excessive voltages. As Temp Comp is active in either float or equalize mode, set breakpoints with this in mind.
When temperature compensation is enabled in Equalize Mode, the CXC uses the equalize voltage setting as the center point around which to make Temp Comp voltage adjustments.
When temperature compensation is enabled in Float Mode, the CXC uses the float voltage setting as the center point around which to make Temp Comp voltage adjustments.
2.8.2 Operation of Battery Temperature Compensation
The CXC can accommodate up to four sensors that monitor lead acid battery temperatures. If more than one sensor is used and the temperature readings are within 5°C (9°F) of one another, the temperature readings are averaged. If the reading differences exceed 5°C, a thermal runaway is assumed in one battery string and the reading changes from the average reading to the highest. If any reading suddenly jumps outside the normal range (i.e. leads are cut or opened), that reading is discarded and the associ­ated Temp Sensor Fail alarm is activated. The temperature reading then returns to the average for the remaining sensors, or to the next highest reading.
Temp Comp has been programmed as a low priority item. All other commands and operations take precedence over Temp Comp. If a command is issued during a Temp Comp cycle, the cycle will be put on hold until the command is completed. If any operation is happening when the Temp Comp cycle oc­curs, the cycle is put on hold until the operation is completed. Temp Comp resumes when the command or operation completes. The Temp Comp feature can be enabled or disabled in the CXC Batteries menu (“6.5.1 Temperature Compensation” on page 50.

2.9 Battery Auto Equalization

Auto Equalize (Auto-EQ) is a protective feature designed to ensure optimal lead acid battery life and per­formance. With the CXC, auto equalize is used for two basic purposes: (1) for providing a quick battery recharge after an AC power failure, and (2) as a long-term battery maintenance feature.
Refer to the battery manufacturer’s recommendations for equalization charging.
2. 9.1 Battery Charge Auto Equalize
Battery Charge Auto Equalize can be used after a prolonged AC power failure when the battery voltage has decreased to a low level.
Once battery voltages have decreased below the auto equalize low voltage threshold, the CXC enters an armed mode. When AC power returns, the system voltage begins to increase and charges the batteries.
Once the system voltage increases to the high voltage threshold, the CXC enters the equalize mode and begins to equalize the battery charges for a period specified by the Supervisor in the AUTO-EQ DURATION submenu. This is done to ensure the EQ duration is not effectively reduced by the time it takes to recharge the battery to the nominal system voltage.
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2.9.2 Periodic Auto Equalize
Periodic Auto Equalize can be used for maintaining the long-term integrity of a battery string. Over time, individual battery cell voltages may vary greatly. To ensure that the batteries remain in optimum condition, they should be equalize charged at regular intervals. The CXC enables the Supervisor to program the time between automatic equalize charging of the battery string in the AUTO-EQ INTERVAL submenu.
2.9.3 Battery Current Termination (BCT) Equalize
The BCT Equalize feature provides an alternative method of ending the EQ mode early to prevent over­charging of the battery. Once enabled, it is only active when the EQ mode is caused by a Charge Auto Equalize.
BCT EQ terminates the Charge Auto EQ when the battery current falls below the BC Threshold setting. Upon initial activation of the EQ mode that is triggered by the Charge Auto EQ feature, the CXC waits for one minute of system stabilization time before monitoring the battery current for BCT EQ. After one minute, the battery current is checked about once per second to see if the current has fallen below the BC Threshold.
When the battery current falls below the BC Threshold and remains below the threshold for three sec­onds, the EQ duration is replaced with the BCT duration. After this time, the system returns to FL mode.

2.10 Battery Monitor and Charge Current Control

The Battery Monitor feature enhances the CXC’s capability to provide information about the battery to the user. Charge Current Control helps to increase battery longevity by keeping the battery current within specified limits.
Charge current to the battery during recharge is limited to a value that is programmed by the Supervisor. This value is derived from the battery manufacturer’s specification sheet and entered by the Supervisor.
A battery run time prediction is performed while the battery is supplying power to the load. The CXC collects data to estimate the time it takes for the battery to be drained. If the Battery Monitor feature is enabled and the battery is sourcing current to the load, a time estimate appears in the Mode Status screen. A runtime estimate is also available in the Analog Signals display, which can be enabled for display status in Signals > Configure Signals > Controller Signals.
During an AC outage or Battery Test, the data is collected to calculate a capacity prediction. A capacity of 80% means that the battery is due to be replaced. The accuracy of this improves as the battery under­goes more discharge cycles.

2.11 Battery Test Scheduler

A battery test scheduler is built into the software. The test can be set to a frequency of a fixed number of days apart, or set to a specific day of the month.

2.12 Low Voltage Disconnect Operation

Whenever the system parameters require that the LVD be activated, a 60-second countdown and audible warning begins. When the countdown reaches zero, the LVD is activated. During this countdown, an icon on the GUI can be pressed to evoke a prompt to inhibit LVD controls – activated by entering the Supervi­sor password. There is a 10-minute time-out for this. See also LVD Inhibit 6.8.2.

2.13 Signals Management

The Supervisor can view and edit a signal equation for a selected signal. The Supervisor can also config­ure custom signals; properties can be modified or disabled as required. All signals in the system can be selected for a signal equation builder making it possible to combine logic conditions and analog values to generate an alarm.
The Supervisor can select which Temperature Sensor to enable for the Battery Temp Sensor Signal.
There are 20 Custom Signals which the user can set by either SNMP or using the equation builder. Note that for any particular signal, only one of these options can be selected. If the user chooses to set by SNMP, any equation associated with that signal will no longer be evaluated. Similarly, if a signal is select­ed to be set by equation, SNMP “sets” made to that signal will be ignored. Because SNMP only allows
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integer values and the CXC may require numbers accurate to two decimal places, values are multiplied by 100 before sending over SNMP. So, for example, to set a signal to a value of “1”, the user should actu­ally do an SNMP set with value “100”. Similarly, a signal with value “1” will be received by SNMP as “100” and should be divided by 100 to determine the actual signal value. Note also that since signal values are not saved over a CXC reset (but instead re-evaluated after reset), any value previously set by SNMP will be lost during reset and the signal will go back to value “0”

2.14 Statistics and Historical Data

The CXC is capable of tracking several statistical parameters on a daily basis: analog statistics, for ex­ample, and triggered items such as battery log and event log.
Data is stored in local memory and can be accessed via a web interface (see Data Logging in Section
6.7. 3 ). The logged data is comma-delimited so it can automatically viewed in rows and columns in MS Excel. The data is stored on a first-in-first-out basis.
2.14.1 Analog Statistics
All statistics, to a maximum of 90 records (one per day) contain a time stamp and date. Daily analog statistics include the minimum, maximum and average of:
Load Voltage Load Current
Battery Voltage Battery Current
AC Mains Battery Temperature Total Rectier Current Average DC Voltage Average AC Voltage Number of Acquired Rectiers Number of Sourcing Rectiers Ten Custom Signals
2.14. 2 Battery Log
A maximum of 40 records can be logged for battery statistics and events. The Battery Log contains the following:
Event Type Capacity Rating
Battery Test Start Time Depth of Discharge
Discharge Duration Time Capacity
Amp Hours Delivered Recharge Duration
Amp Hours Recharge Return Peukert Number
1-5 Max. Midpoint Deviation Discharge Data1
1-5 Max. Midpoint Deviation Recharge Data2
Battery Current/Average Battery Current Battery Temperature/Average Battery Temperature
Battery Voltage/Battery Test End Voltage Open Circuit Voltage
Battery Test Result
During a battery discharge, active battery log information is displayed in a row above the Battery Log. This information is then no longer available after the battery has finished recharging.
The Battery Log also provides support for very slow discharges. This is accomplished by saving interme­diate battery log information in the event of controller power loss before battery recharge completes.
When a battery test (BT) is started remotely, the battery log shows Remote BT in the Event Type column.
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2.14.4 Event Log
The CXC can record up to 500 events. Each unique event is stamped with the date and time. Multiple events are time stamped for the first daily occurrence and then the accumulated total is shown at the last daily occurrence of the event. Refer to Relay 7 in the following event log.
Some of the events include the following:
• All alarm events (activation and deactivation).
• Rectifier alarm details.
• Any change of state of the digital inputs.
• Other miscellaneous events; such as, rectifiers being turned off or on due to the Power Save feature.
Once the maximum number of events have been recorded, the oldest events are erased as new events are added.
Click on column heading to sort by column
Total number of occurrences of Relay 7 energizing and de­energizing.
Event log
2.14.3 Data Logging
This feature of the CXC web interface allows the user to perform complex/custom configurations of the data gathered by the Alpha controller. Various ways of setting the log frequency/limit and start/stop trig­gers enables greater management of the events for collection.
The data is stored in files showing the records associated with each for easy archiving and retrieval. File Save Option enables a FIFO (first in first out) or “Stop when full” means of data collection.
Recommended size is up to seven signals and a maximum one thousand entries, as very large log files may not be viewable. If the datalog screen comes up blank, the log is too large to be displayed.
First daily occurrence of Relay 7 energizing and de-energizing.
Figure 1 — Event Log
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3. User Interface Options

This chapter provides an overview of the following user interfaces:
• LCD
• Web interface
A user with a Supervisor access level can make changes to parameters. A user with a User access level can update inventory, make changes to system voltages and navigate through menus.
Win CE + Alpha browser
CXCU
CXC Controller
with expanded memory
PC running
Microsoft IE
or Firefox
Panel PC
5.7" Color Touchscreen LCD
LCD
160x 160 pixel touch
screen liquid crystal display
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3.1 LCD Graphical User Interface

This interface is a 160 x 160 pixel touch screen with interactive hot spots that call forth more screens. The best tool for navigating these pages is a stylus (a small pen-shaped instrument). Make selections by tap­ping the stylus on the screen.
Auto-Logout Timeout
After 20 minutes of inactivity (no user input), the CXC automatically logs off the user. The CXC discards any unsaved changes made by the user while logged in the system and returns to Normal Operation mode. The access level is reset to the default user access and the screen continues to display live data.
Backlight Timeout
After one minute of inactivity (no user input), the CXC automatically turns off the LCD backlight.

3.2 Home Screen (Default Operating Screen)

On startup the home screen shown in 2.1 appears. This GUI displays system status information and monitors all input channels. See Chapter 4 for operating procedures with the LCD interface.
Mode Status
Rectiers Information
Converter Report can also be ac­cessed by tapping this area
Audio Alarm enable/disable
Priority icon
Software Version
Home Page Icon, tap to login
Figure 3 — CXC default operating screen

3.3 Contrast Adjustment of the GUI

Tap the Home page icon and then tap Contrast on the pop-up window. The following figure shows the contrast adjustment window. Use the slider on the GUI to adjust contrast as desired.
Tap the Home Page icon
Analog Signals Display
Alarm Indication
Date and Time
Login
Contrast Reset 0: English 1: (C hinese) 2: Français
14
Discard changes and return to previous screen
Tap slider to increase or decrease con-
trast of GUI as required
Accept changes and return to previous screen
Figure 2 — Contrast adjustment pop-up window
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3.4 Menu Navigation - LCD

Figure 7 illustrates the LCD menu structure.
3.4 .1 Login (password entry)
NE W FEATURE
Follow steps 1 through 4 to login. Once the password is verified, a pop-up window provides acknowl­edgement; e.g., Supervisor Access
Granted.
3
The new Client Login Control feature allows up to three logins (see the feature description in section 2.1).
If the number of logins has reached the maximum, a pop-up window appears with the warning:
Another operator is currently logged in.
Tap Home Page Icon.
1
Each character of the password entry appears
in this window for verication. Enter:
•  Viewer – 0000 (read only access)
•  User – 5678 (read and limited write access)
•  Supervisor – 1234 (read and write access)
Login
Contrast Reset 0: English 1: (C hinese) 2: Français
Tap to login.
2
Use the backspace key to erase last entry as needed.
Use number keys to enter password.
Tap to accept or cancel
4
Figure 5 — Password entry pop-up window
3.3.1 Menu Navigation Overview
The MAIN MENU screen appears on login. The folders with a plus sign can be expanded to show the menu subcategories. See section 3.4.5 for the complete LCD menu structure and Chapter 6 for a com­plete description of the menu options.
Option button to logout or save changes.
FL + TC
Figure 4 — Menu navigation screen
54.00V
250A
Tap on the folder icon or label to expand.
Sliders and scroll bars are used for navigation
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3.4.2 Changing and Saving Settings
1. When changes are complete, return to the MAIN MENU navigation screen and press the OPTION button to evoke the SAVE/LOGOUT pop-up window.
2. Select SAVE to save the new settings.
3. A pop-up window Save Complete confirms the selection (select the X icon to close the pop-up).
If no changes have been made, then saving in menu navigation results in a prompt (pop-up window):
There are no changes to save.
In each case, tapping the X button clears the pop-up from the active area and remains in menu naviga­tion. The Supervisor retains the security access level to continue making changes and does not return to the home page.
3.4.3 Logging Out
Tap the Option button to logout of the menu navigation screen (a pop-up window appears) and return to the home page.
If changes have been made, another pop-up window prompts the user with Save or Discard buttons. In either case, the active area returns to the home page and a pop-up window confirms the selection. Tap­ping the X button clears the pop-up from the active area.
3.4.4 Virtual Numeric Keypad
Whenever a numeric field is selected, a virtual numeric keypad appears (in a pop-up window) to enable editing of the value.
Tap the keypad to edit or enter a value. Use the virtual function buttons described below to navigate, cancel or accept.
Name of value being edited
Toggle from positive to negative
3.4.5 LCD Menu Structure
Figure 7 shows the menu structure for all categories except the Inverter category which is listed below:
• AC Input Groups
• DC Input Groups
• AC Output Groups
• Auto DC Priority
Cancel entry and close window
Initial value of the eld
Clear entire eld
Clear one number at a time
Accept entry and close window
Figure 6 — Virtual numeric keypad pop-up window
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Figure 7 — LCD Menu structure
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17
3.4.6 LCD Touch Screen Calibration
Perform the following steps to calibrate the touch screen from the home screen: Complete each step within 20 sec or the calibration is ignored.
Both the targets must be tapped correctly for the calibration to take effect to prevent the calibration from changing dramatically from the default.
1. Perform a diagonal action or "swipe" from the top right area of the LCD to the bottom left area:
2. Tap on the center of the first target within 20 seconds to complete this step.
Count down timer
3. Tap on the center of the second target within 20 seconds to complete the calibration:
Count down timer
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4. Operation using the LCD GUI

This chapter briefly describes operation with an LCD interface. The following steps are a summary of operating procedures on start up. The sections that follow expand on each of the steps
1. Initiate the startup routine by applying power to the CXC. (Close the battery breaker or close the converter and rectifier input and output breakers.)
2. The CXC performs a short self-test as it boots up. The scrolling pattern of the LEDs indicates activity. Alarm alerts are normal. Wait for the self-test to finish.
3. Check and adjust the alarms and control levels in the CXC submenus.
4. Check and adjust the group settings in the CONVERTERS and RECTIFIERS submenus. Parameters to be adjusted include float, equalize voltage, etc.
5. Verify the relevant COMMUNICATIONS settings.
6. Program the CXC relevant TEMP COMP and AUTO EQUALIZE settings.
7. Test the relevant relay OUTPUT ALARM\CONTROLS such as Major Alarm, CEMF, etc.

4.1 Start-up

When the CXC is powered-up or reset, it performs a 15 second self-test before displaying the Cordex logo and identification messages. The three front-panel LEDs illuminate temporarily, and then extinguish.
The Graphical User Interface (GUI) then displays system status information. Tap the active areas shown in the following screenshot of the home page. Use a stylus pen to activate navigate through the touch sensitive screens.
Mode Status
Rectiers Information
Converter Report can also be ac­cessed via this active area
Alarm condition icon
Priority icon
Software Version (reporting)
Home Page Icon, tap to login

4.2 Language Selection

The user can select English, or Chinese characters for the display of text labels and messages. Lan­guage files can be uploaded via web interface. The CXC can be set up for a maximum of three language files (two default plus one other) at one time pending availability.
Tap the Home page icon at the lower left of the home page and select language from the pop-up window shown in the following figure:
Tap Home page Icon
Figure 8 — CXC home page
Login
Contrast Reset 0: English 1: (C hinese) 2: Français
Analog Signals Display
Current Alarms
Date and Time
Make language selec­tion
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Figure 9 — Language selection on home page
19

4.3 Date and Time

To change the date and/or time, tap the area where the date and time are displayed on the home page (below the Alarm Indication). Tap the up/down arrows to change the date (year, month, day) and time (hour, minute, second) settings. tap this area of the screen to enter a new window of operation.
Discard changes and return to the previous screen
2010 10
09
All CXC models (except CXCi and CSCM1) provide battery backup of time and date.
With the web interface, SNTP (Simple Network Time Protocol)can be used to synchronize the CXC de­vice time with an external source; i.e., the user’s network.
30 00
Figure 10 — Setting the Date and Time
10
Tap arrows to decrease or increase values.
Accept changes and return to the previous screen.

4.4 Resetting and Powering Down

4.4.1 Reset
CAUTION!
During reset, the Controller may need to run a defragmentation cycle. Cycling of the LEDs on 
the controller front panel indicate that defragmentation is in progress. A full defragmentation can take up to 20 minutes to perform. DO NOT POWER DOWN the CXC during this time.
A reset enables the CXC to finish saving files to flash memory before a power down or restart.
1. Tap the Home page icon and then tap Reset on the pop-up window (see Figure 9. A new pop-up window alerts the user “You are about to perform a system reset.”
2. To abort the operation, tap Cancel or the X button to clear the pop-up from the active area.
3. To proceed, tap Accept and a pop-up window notifies the user “Performing Reset, please wait…” This window is then replaced with a window showing a timer counting down from 60 seconds and a
Reset Now button. A message will appear in this window to notify the user “It is now safe to reset the
system”.
4. Either tap the button or wait for the timer to count down and the operation proceeds automatically to completion.
The screen goes blank and the LEDs flash as the CXC performs a short self-test before returning to Nor­mal operating mode.
4.4.2 Powering Down
To power down the system, complete steps 1 through 3 under Reset.
It is safe to power down when the message appears “It is now safe to reset the system.”
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4.5 Alarm Display and Configuration
If the Alarm Indication window in the home screen indicates an alert (such as an active alarm and the priority of the condition) tap the display area to enter a window of operation for alarm display and con­figuration.
Tap the Alarm Indi­cation display
Mode (+Temp Comp) display 
Tap to silence active alarms
Use slider to change alarm scroll rate
Tap to view alarm histor y
4.5.1 Silence All Alarms
Tap Cutoff All Alarms button to silence active alarms. In addition, on any screen where the alarm indica­tion is shown, tapping the alarm indication button displays a pull-down menu (F igure 11) for alarm cutoff (also known as ALCO, see 6.6.9):
FL + TC
54.00V
250A
Alarm scrolls here...
Cutoff All Alarms
Scroll Rate
1 s
Show Alarm History
Figure 12 — Alarm indication display screen
FL + TC
54.00V
250A
Alarms Display Here
Cutoff All Alarms Cancel
Battery Volts and Load
Current display
Discard changes and return to previous screen
Accept changes and return to previous screen
Use pull- down menu to cutoff all alarms
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Figure 11 — Alarm cutoff pull-down menu
21
4.5.2 Alarm History
Tap Show Alarm History to link to another screen that lists past alarms. Two pull-down menus enable the user to select which alarms to display according to status and priority:
Use pull- down menu to select status as shown
Tap to Remove Cleared alarms from display
4.5.3 Alarm Configuration
Login to the controller and select Alarms from the main menu (see section 3.4 for menu navigation). Ex­amples of alarm settings are power system high/low voltage alarms, AC Mains high/low voltage alarms, supervisor programmable alarms and alarm tone enable (audible alarm buzzer). For details, see section
6.6.

4.6 Signals Display

The Analog Signals display area on the home page shows two lines of text for system voltage and current by default. Tap this active area to decrease the font size and display four lines of text showing the system values and the corresponding labels. Tap the arrows beside the system values to return to the larger font of the normal (default) home page.
The large font reappears after 20 minutes of inactivity (no user input).
FL + TC
54.00V
250A
Alarm will scroll here...
Figure 13 — Alarm History screen
Use pull- down menu to select priority, either major, minor, message, or all
Alarms display here in a list
Verify action and return to previous screen
22
Figure 14 — Signal display area of the home screen
0700015-J0 Rev B
Tap the Analog Signals display on the home screen to enter an operation window for signals configura­tion. Or login to the controller and select Signals from the main menu (see section 3.4 for menu naviga­tion). Section 6.7 has detailed instructions for reviewing and configuring signals.
Tap the Analog Sig­nals display on the home screen
FL + TC
54.00V
250A
Controller Signals
Load Current
Battery Voltage
Battery Current
250
54.00
5.4
Congure
Figure 15 — Signals display screen
Use the pull-down menu to select one of the following signals:
Controller Signals
Tap the Configure button to produce another window with a list of items to navigate, see Section6 . 7.2 .1
Analog Inputs
Tap the Calibrate button to produce another window and list of items to navigate, see Section 6.7.2.2.
Digital Inputs
Provides a list of digital inputs, see “Table D — Digital input channel assignments” on page
61.
Rectifier Signals
Custom Signals
Converter Signals
Counter
Timers
ADIO Signals
Provides a list of rectifier signals, see Table G on page 120.
Tap the Configure button to produce another window and list of items to navigate.
Provides a list of converter signals, see Table H on page 120.
Tap the Configure button to produce another window and list of items to navigate.
Tap the Configure button to produce another window and list of items to navigate.
Used to view live data from an ADIO device (i.e., Cordex Smart Peripherals) connected to the CXC. Refer to Section 6.7.2.6 on page 74, Example 4.
Use drop-down menu to select from signals list.
Tap Congure to edit the selected menu item. Enter password when prompted.
Accept changes and return to previous screen
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4.7 Rectifiers (and Converters) Information
Tap the rectifier display area to enter an operation window for converter/rectifier updates and reports.
Select operation here
4.7.1 Inventory Update
This button enables the user to re-acquire all the attached modules to the CXC and verify the existence of all connected modules.
Tapping this button updates the inventory and returns the user to the home page. A pop-up window ap­pears over the home page to show a progress bar of the number of modules acquired during the update. Tapping the X button clears the pop-up from the active area.
Inventory update must be done whenever a module is removed from the system. The system is polled with respect to the following scenarios:
• Module has failed and is no longer able to communicate, or
• User has removed a module from the system.
FL + TC
54.00V
250A
Alarm Indication
Inventory Update
Rectier Report
Converter Report
Return to previous screen
Figure 16 — Update (inventory) and report selection screen
4.7. 2 Rectifier Report (Converter Report similar)
Tap the Rectifier Report button to generate a report of all acquired modules in the system.
A new operations window appears with a list of the rectifiers in the system. The first column lists the serial numbers of the modules. The report then displays the current output (A) of each module (or toggle for % of maximum output) and the number of active alarms. The right most column displays the number of set­tings out of tolerance (OOT per web interface).
FL + TC
Rectier (or Converter) Locate Feature
Once a module is selected, the (module)
LEDs ash briey.
Select a module and then tap View
Details to produce a new window
with pull-down menus showing all of the alarms and settings that are out of tolerance
Figure 17 — Rectifier (or Converter) report screen
54.00V
24
250A
Report headings for serial number, current display (% or A), number of alarms and set­tings out of tolerance (OOT)
A value of ‘---‘ indicates Comms Lost
Return to previous screen
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4.7. 3 Basic Programming Example
For details of the settings in the RECTIFIERS\ CONFIGURE SETTINGS menu, see 6.3.2:
1. Use the navigation arrows to scroll to the item that is to be changed; e.g. FLOAT VOLTAGE.
2. Enter a new value using the CXC virtual numeric keypad, e.g., 54.00.
Download new settings to all connected rectifiers:
3. Click the check mark in the lower right hand corner to return to MAIN MENU navigation screen.
4. Press the OPTION button to evoke the SAVE/LOGOUT pop-up window.
5. Select SAVE to save the new settings or select LOGOUT to clear. A pop-up window appears to confirm the selection.

4.8 Voltage Mode Status and Temp Comp Settings

The Mode Status displays the current mode of operation:
• Float (FL)
• Equalize (EQ)
• Boost (BST)
• Battery test (BT)
The mode and temperature compensation (TC) appear in the upper left corner. The time duration, until the mode changes, may also appears in that active area.
Refer to sections 4.9 to 4 .12 for a description of the voltage modes.
Mode Status
To change modes:
1. Tap the Mode Status active area to enter the mode selection screen.
2. In the screen that appears, tap the required mode button.
3. Tap the check mark button in the lower right corner to verify the selection and return to the previous screen.
The icon for the new mode now displays in the upper left corner of the GUI.
Mode (+Temp Comp) display 
Mode Selection buttons
Additional functions display here; such as, countdowns and status of battery runtime
FL + TC
54.00V
Battery Voltage Mode
FL
Periodic Auto-EQ Disabled Auto BT Disabled
EQ BT
250A
BST
Battery Voltage and Load Current display
Alarm Indication
0700015-J0 Rev B
Verify action and return to previous screen
Figure 18 — Mode selection screen
25

4.9 Float (FL) Mode

FL is the CXC default mode at start up and during normal system operation. In this mode, the rectifier’s charge (or output) voltage is driven by the float voltage setting found in the CXC Rectifiers menu, see
6.3.2. Do not adjust the float voltage of the rectifiers when they are in Current Limit.

4.10 Equalize (EQ) Mode

Use the equalize mode to equalize charge a battery string. In this mode, the rectifier’s charge (or output) voltage is driven by the equalize voltage setting found in the CXC Rectifiers menu, see 6.3.2
A maximum time limit for equalize charging can be programmed to prevent accidental over-charge of a battery string. This limit is determined by the setting found in the EQ Timeout menu, see 6. 3. 2.1 0 . Do not adjust the equalize level of the rectifiers while they are in Current Limit.
When operating in EQ mode, the text below the Mode Selection buttons (Figure 18) displays the time until FL mode in hours.

4.11 Boost (BST) Mode

This feature provides the supervisor with the means to equalize charge the battery at a higher voltage relative to the connected load. Activation is manual and certain conditions must be met to prevent dam­age to the load. A custom alarm must be created to include all the desired factors that must be taken into account before activating BST mode. This mode will then only be permitted if the alarm is false.
Once activated, BST mode concludes with a timeout or whenever the status of the custom alarm is true and reverts to FL mode. BST mode can also be cancelled if the conditions required to activate BST mode have changed.

4.12 Battery Discharge Test or Battery Test (BT) Mode

The battery discharge test is used to update the status of the lead acid battery capacity.
Manual Activation Manually initiated (tap Mode Selection area and then
BT button) (Figure 18)
Auto-BT Feature BT can be set to run automatically on a periodic basis.
4.12 .1 Definitions
• End/Terminal Voltage — The voltage at which the test ends.
• Timeout — The maximum time the test can run before it is aborted.
• Period in Days — The time between each Auto-BT.
• Battery On Discharge (BOD) Alarm — indicates the battery is discharging.
4.12 . 2 Tips on Using the BT Mode
Use Charge Current Control (6.5.2) to limit the battery recharge current to the battery manufacturer’s specified maximum value.
The resultant battery capacity estimate will be more accurate if the test is started when the battery is fully charged. If a discharge has occurred within the last 96 hours, when a mode change to BT is selected, a dialog box will prompt the user to confirm the mode change.
During a test, the runtime hours are accessible through the Analog Signals display or Mode Status screen. The runtime hours reflect the time remaining in the test.
The runtime is displayed after the start of an outage and when a BOD condition is detected; i.e., battery is sourcing current and voltage is below open circuit.
When a test is started by the remote BT feature, the battery log will show “Remote BT” in the Event Type column.
The Supervisor can enable or disable the feature in (BATTERIES) BATTERY TEST\AUTO-BT menu. See section 6.5.4.
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0700015-J0 Rev B
The BT depth of discharge (DOD) can be accessed via the Analog Signals Display; provides an addi­tional indication of test progress.
BT information is available via the CXC battery log web page when a test is in progress. In addition, the new battery capacity estimate can be accessed via the Analog Signals display at any time before, during or after the test.
4.12 . 3 BT Initiation
When the test begins, an entry is made in the event log. If enabled, an alarm provides a warning to indi­cate that a Battery Test is in progress.
The test will continue, depending on the type of rectifier in use, in accordance with the following algo­rithms (as applied to lead acid batteries):
Algorithm 1 — For rectifiers that support Battery Test (BT) mode:
1. A command is sent to put the rectifiers into BT mode.
2. BT mode runs for the period set as Timeout or until BT End Voltage is reached.
Algorithm 2 — For (Pathfinder) rectifiers that do not support BT mode:
1. Rectifiers are commanded to go to nominal voltage.
2. The rectifiers are periodically scanned to be sure that they do not begin sourcing current. When 3% DOD is reached and the rectifiers are still not sourcing current, the rectifiers are turned off.
3. The rectifier float setting is reset to the setting stored in the system controller.
4. When the system voltage reaches the end (termination) voltage or a timeout occurs, the system controller will command the rectifiers to turn ON and enter FL mode.
4.12 .4 Activity During BT Mode
Temp Comp and Power Save features are suspended during a battery test.
When the battery is discharging, a BOD alarm is active.
During a test, the mode symbol in the upper left corner of the GUI updates to “BT.”
Runtime estimate begins at 3% DOD.
Capacity estimate also begins at 3% DOD, but is not stored unless DOD > 20%; the point at which rea­sonable accuracy can be assured.
4.12 . 5 AC Failure During BT Mode
If the AC fails during a battery test, the test will be aborted. This will place the rectifiers into a state that will enable them to resume providing power to the load when AC returns. If the Runtime is being dis­played, it will continue to update.
4.12 .6 Addition of Rectifiers During BT Mode
If rectifiers are added to the system when a battery test is active, they will be placed into the same state as the other rectifiers. They are:
• Placed into BT mode (for rectifiers that support BT mode), or
• Placed into remote shutdown, or
• Set to the same voltage as the other rectifiers.
0700015-J0 Rev B
27
4.12 .7 Conditions to Watch for During BT Mode
If the voltage drops below 47 V before or when 3% DOD is reached, the test is aborted and the battery capacity is set to 0% (resulting in a Battery Capacity Low alarm). This provides an indication that the bat­tery is very weak . The battery capacity must be manually reset to 100%, or to the percentage of expect­ed battery capacity before the next battery test is started, in order for the battery monitor to again attempt to compute the battery capacity.
If rectifiers are seen to be sourcing current during the test and the battery ceases to be discharging, the test is aborted.
4.12 . 8 Cancelling BT Mode
BT mode can be cancelled by changing mode to FL or EQ (see section 4.8).
4.12 .9 Battery Discharge Test Completion
The test is considered complete once the battery begins to charge. This could be due to the test ending from timeout, the system reaching the end (termination) voltage or an abort condition.
Once the battery begins to charge, the recharge cycle begins. Live battery recharge information is avail­able from the battery log web page.
4.12 .10 Remote BT Mode
This feature will force a transition to BT mode when a user-defined condition (custom alarm) is true.
When this condition is true, BT mode is entered regardless of the regular safety checks that are per­formed during manual or automatic changes to BT mode. BT mode stays active as long as the condition remains true.
A check box is used to enable/disable this feature. The default is disabled. If the condition is true and the check box is disabled, then the system will be put into FL mode.
If the condition becomes false, disabled, invalid, or the (assigned custom alarm) equation is empty, the system will be put into FL mode.
This feature is exclusive for the Cordex series of rectifiers. If Remote BT is active and a rectifier other than the Cordex series is added to the system then Remote BT will be aborted.

4.13 Communications

For the web interface, refer to Section 9.1 to set up network connections.
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