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Alarms definitions
This section describes the equipment alarms listed in
AC fail alarm
An ac fail alarm is generated when the circuit detects a ac power failure.
Battery on discharge alarm
The battery on discharge (BOD) alarm is generated when the batteries are
supplying the current to the equipment.
Fuse alarm
The fuse alarm (FA) is generated when one or mores fuses blown or circuit
breakers tripped on the dc distribution shelf.
Low voltage alarm
The low voltage alarm (LVA) is generated when the battery voltage is below
-47.0 V dc.
High voltage shutdown alarm
The high voltage shutdown (HVSD) alarm is generated when the voltage rises
over a preset threshold (set with SW1-6 switch).
Rectifier failure alarm minor
The rectifier failure alarm (RFA) minor is generated when one rectifier module
fails.
Rectifier failure alarm major
The rectifier failure alarm (RFA) major is generated when two or more rectifier
modules fail.
Battery distribution panel alarm
The battery distribution panel alarm is generated when a circuit breaker is
tripped on the battery distribution panel.
High temp alarm
The high temp alarm is generated when the inside temperature of the cabinet
reaches 65°C.
Door intrusion alarm
The door intrusion alarm is generated when a door is open on the cabinet.
Remote measurement unit alarm
The remote measurement unit (RMU) alarm is generated when the RMU unit
fails.
Table
User Guide
Rel 1.0 Standard May 1999
Alarms 4-3
4-1.
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