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Installation
C
A
ONFIGURING
Alarms are wired to a wire-wrap cross-connect panel. Refer to cabinet drawing T-CS405-30 (furnished with
cabinet) for a summary of all cabinet alarms and their physical terminations.
For a summary of the more important cabinet and power alarms and their activators, refer to
Alarm Designation
RFA
CB CR
AC FAIL
LVD
AUX FA
INTRUSION
HI TEMP
54
LARMS
Table 7. Alarm Summary
Alarm Activator
Activated by the absence of rectifier DC output. Could be caused by: AC input failure, AC
INPUT circuit breaker operation, or high voltage shutdown (over -59.5 Vdc). (To reduce
the possibility of a false RFA, there is a self-test interval of 20 to 40 seconds between
detection and the issuance of local and remote RFAs.)
Activated by one or both of the following conditions:
• Manual or automatic operation of the DC OUTPUT circuit breaker on either rectifier.
• Manual or automatic opening of two or more DC load circuit breakers (on the DC
distribution panel).
Indicates the absence of 240 Vac power to the rectifiers and battery heaters.
(Low Voltage Disconnect) Activated when the battery string voltage drops to -42.5 Vdc,
signaling the imminent disconnection of that battery string (and system failure if the
cabinet is on backup power).
Indicates failure of one or more fuses in the Auxiliary Fuse and Alarm Panel. These fuses
control critical equipment in the cabinet (heat exchanger fans, intrusion alarms, and
auxiliary fan shelves).
Indicates that a door is open (or closed improperly) and the available 30-minute delay
has expired or was not initiated.
Indicates that the temperature inside the main chamber has exceeded 150°F (66°C).
Reset when the temperature decreases to 130°F (54°C).
November 9, 2001
LTPS-UM-8007-01, Issue 1
Table 7 on page
54.
SPX-CABFIN01, SPX-CABFIN04
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