Refer to the back of this manual for Factory Service and Technical Support contact information

3.10Signals Management

The CXC enables the Supervisor to view and edit a signal equation of the selected signal. The Supervisor may also configure custom signals; properties may 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 (including any smart peripheral temperature sensors) is enabled for Battery Temp Sensor Signal.

3.11Statistics and Historical Data

The CXC is capable of tracking several statistical parameters on a daily basis; e.g., analog statistics or triggered items (listed below), such as, battery log and event log, see Data Logging (web interface only), Section 6.6.3.

Data is stored in local memory and may be accessed via a web interface. The logged data is comma-delimited such that it can be automatically viewable in rows and columns in MS Excel. The data is stored on a first-in-first- out basis.

3.11.1 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 Rectifier Current	Average DC Voltage
Average AC Voltage	Number of Acquired Rectifiers
Number of Sourcing Rectifiers	Ten Custom Signals

3.11.2Battery 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 by the remote BT feature, the battery log will show “Remote BT” in the Event Type column.

3.11.3Event Log

In addition, the CXC can record up to 500 events. All events are stamped with the date and time. Some of the events available 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.

3.11.4Data 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.

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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.

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