GE 489 User Manual

4-50 489 Generator Management Relay
GE Power Management
4.9 S8 RTD TEMPERATURE 4 SETPOINT PROGRAMMING
4
4.9.7 RTD SHORT/LOW TEMPERATURE
The 489 has an RTD Short/Low Temperature alarm. This alarm will look at all RTDs that have either an alarm or trip pro-
grammed and determine if an RTD has either a short or a very low temperature (less than –50°C). Any RTDs that do not
have a trip or alarm associated with them will be ignored for this feature. When a short/low temperature is detected, the
assigned output relay will operate and a message will appear on the display identifying the RTD that caused the alarm. It is
recommended that if this feature is used, the alarm be programmed as latched so that intermittent RTDs are detected and
corrective action may be taken.
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RTD SHORT/LOW TEMP
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[ENTER] for more
RTD SHORT/LOW TEMP
ALARM: Off
Range: Off, Latched, Unlatched
ASSIGN ALARM
RELAYS (2-5): ---5
Range: Any combination of Relays 2 to 5
RTD SHORT/LOW TEMP
ALARM EVENTS: Off
Range: On, Off
ENTER
ESCAPE
ð
ð
MESSAGE
ESCAPE
MESSAGE
ESCAPE

GE 489 Specifications

General

Brand	GE
Model	489
Category	Relays
Language	English