Alpha Technologies Cordex Controller Ver.2.0 User Manual
Page 58
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The following sub-section describes the converter alarms menu headings and the associated items.
6.5.3.11 Converter Alarms
Converter Fail
This menu item enables the Supervisor to set an alarm condition for a true or actual converter
failure. The activation value is factory set.
Converter Minor
This menu item enables the Supervisor to set an alarm condition for a minor converter failure;
i.e., an alarm condition detected in a converter, but one that is not considered an immediate
threat to the operation of that converter. The activation value is factory set.
Conv. Major Fail Count
This menu item enables the Supervisor to set the total number of converter fail alarms that will
trigger the CXC’s converter major alarm. The activation value must be greater than or equal to
the total number entered for the minor converter fail count alarm.
Conv. Minor Fail Count
This menu item enables the Supervisor to set the total number of converter fail alarms that will
trigger the CXC’s converter minor alarm. The activation value must be less than or equal to the
number entered for the major converter fail count alarm.
Conv. Out of Tolerance
This menu item enables the Supervisor to set an alarm condition when a converter out of
tolerance is detected. The activation value is factory set.
Conv. Comms Lost
This menu item enables the Supervisor to set an alarm condition when converter
communications is lost. The activation value is factory set.
Conv. Input Voltage Fail
This menu item enables the Supervisor to set an alarm condition when a converter input voltage
fail is detected. The activation value is factory set.
The activation value for Input Voltage Fail detection is determined to be when the number of
converters in Input Voltage Fail divided by the number of converters acquired is greater than or
equal to 90%.
Conv. Fan Fail
The purpose of this feature is to enable the CXC to trigger the alarm when a fan fail (speed
error or failed fan) condition has occurred in any of the converters in the system.
The Fan Fail Alarm is true when the CXC receives a Fan Fail or Fan Speed Error alarm from any
converter.
The Fan Fail Alarm is cleared when all Fan Fail and Fan Speed Error alarms are cleared from all
the converters.
Each time that the Fan Fail Alarm goes on/off, the “event” is logged in the Event History. Since it
is a converter alarm, up to nine converters (up to 27 fan fail alarms) that are in alarm will be
logged. If more than nine converters are in alarm an additional entry will be made indicating the
total number of converters in alarm.
The activation value is factory set.
Conv. Load Current High
This menu item enables the Supervisor to program the setting for the converter load amps
alarm. When the current to the load has exceeded this setting, an alarm is activated and the
message CONV. LOAD CURRENT HIGH is displayed on the GUI.
Conv. Low Output Voltage
When the converter’s output voltage falls below the Supervisor-specified value, the alarm is
activated and the message CONV. LOW OUTPUT VOLTAGE is displayed on the GUI.
Conv. High Output Voltage
When the converter’s output voltage exceeds the Supervisor-specified value, the alarm is
activated and the message CONV. HIGH OUTPUT VOLTAGE is displayed on the GUI.