6.5.3.1

Overview of Output Relay Channels and Configuration

One active control can be mapped for each of the relays; for example, Relay 1 can be

unassigned from LVD 1 then remapped as an alarm relay.

Any alarm (even multiple alarms) can be mapped to any unoccupied relay.

The table below summarizes the output channel assignments:

Table A–Output channel assignments

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Channel Description	Factory Default Designation
Relay 1	LVD 1
Relay 2	LVD 2
Relay 3	LVD 3
Relay 4	POWER SYSTEM MINOR ALARM
Relay 5	POWER SYSTEM MAJOR ALARM
Relay 6	AC MAINS HIGH/LOW ALARM
Relay 7	RELAY 7 (Unassigned)
Relay 8	RELAY 8 (Unassigned)
Relay 9 – 16	…(Unassigned)

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The following sections describe the menu headings and the associated lists of items.

6.5.3.2

Rectifier Alarms

Rectifier Fail

This menu item enables the Supervisor to set an alarm condition for a true or actual rectifier

failure. The activation value is factory set.

Rectifier Minor

This menu item enables the Supervisor to set an alarm condition for a minor rectifier failure; i.e.,

an alarm condition detected in a rectifier, but one that is not considered an immediate threat to

the operation of that rectifier. The activation value is factory set.

Rect. Major Fail Count

This menu item enables the Supervisor to set the total number of rectifier fail alarms that will

trigger the CXC’s rectifier major alarm. The activation value must be greater than or equal to the

total number entered for the minor rectifier fail count alarm.

Rect. Minor Fail Count

This menu item enables the Supervisor to set the total number of rectifier fail alarms that will

trigger the CXC’s rectifier minor alarm. The activation value must be less than or equal to the

number entered for the major rectifier fail count alarm.

Rectifier Lockout (Pathfinder series only)

This menu item enables the Supervisor to set an alarm condition when a Pathfinder series

rectifier lockout is detected. The activation value is factory set.

Out of Tolerance

This menu item enables the Supervisor to set an alarm condition when a rectifier out of

tolerance is detected. The activation value is factory set.

Rect. Comms Lost

This menu item enables the Supervisor to set an alarm condition when rectifier communications

is lost. The activation value is factory set.

Rect. Equalize Activated

This menu item enables the Supervisor to set an alarm condition when a rectifier in EQ mode is

detected. The activation value is factory set.

Rect. AC Mains Fail

This menu item enables the Supervisor to set an alarm condition when a rectifier AC mains fail

is detected. The activation value is factory set.

The activation value for AC Mains Fail detection is determined to be when the number of

rectifiers in AC Fail divided by the number of rectifiers acquired is greater than or equal to 90%.

Max Rectifiers Exceeded

This menu item enables the Supervisor to set an alarm condition when the maximum number of

rectifiers is exceeded. The activation value is factory set.

Fan Fail Alarm (for Fan Cooled Systems)

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 rectifiers in the system.

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The Fan Fail Alarm is true when the CXC receives a Fan Fail or Fan Speed Error alarm from any

rectifier.

The Fan Fail Alarm is cleared when all Fan Fail and Fan Speed Error alarms are cleared from all

the rectifiers.

Each time that the Fan Fail Alarm goes on/off, the “event” is logged in the Event History. Since it

is a rectifier alarm, up to nine rectifiers (up to 27 fan fail alarms) that are in alarm will be logged.

If more than nine rectifiers are in alarm an additional entry will be made indicating the total

number of rectifiers in alarm.

The activation value is factory set.

Power Save

This menu item enables the Supervisor to set an alarm condition when a rectifier is in Power

Save mode. The activation value is factory set.

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Urgent AC Mains Fail

This menu item enables the Supervisor to set a major alarm condition when the Rectifier AC

Mains Fail alarm has been active for a period of time; the default activation value is ten (10)

minutes:

Discard changes and

Tap on the Activation Value to edit

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