Open Rtd Sensor; Rtd Short/Low Temp - GE 469 Instruction Manual

4.9 S8 RTD TEMPERATURE
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PATH: SETPOINTS S8 RTD TEMPERATURE
n OPEN RTD SENSOR
n [ENTER] for more
The 469 has an Open RTD Sensor alarm. This alarm will look at all RTDs that have either an alarm or trip programmed and
determine if an RTD connection has been broken. Any RTDs that do not have a trip or alarm associated with them will be
ignored for this feature. When a broken sensor is detected, the assigned output relay will operate and a message will
appear on the display identifying the RTD that is broken. It is recommended that if this feature is used, the alarm be pro-
grammed as latched so that intermittent RTDs are detected and corrective action may be taken.
4
Õ×
PATH: SETPOINTS S8 RTD TEMPERATURE
n RTD SHORT/LOW TEMP
n [ENTER] for more
The 469 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.
4-56
Courtesy of NationalSwitchgear.com
Õ×

OPEN RTD SENSOR

ð
OPEN RTD SENSOR:
ENTER
ESCAPE Off
ASSIGN ALARM RELAYS:
ESCAPE
Alarm
MESSAGE
OPEN RTD SENSOR
ESCAPE
ALARM EVENTS: Off
MESSAGE
Õ×

RTD SHORT/LOW TEMP

ð
RTD SHORT/LOW TEMP
ENTER
ESCAPE ALARM: Off
ASSIGN ALARM RELAYS:
ESCAPE
Alarm
MESSAGE
RTD SHORT/LOW TEMP
ESCAPE
ALARM EVENTS: Off
MESSAGE
469 Motor Management Relay
4.9.6 OPEN RTD SENSOR
Range: Off, Latched, Unlatched
Range: Alarm, Alarm & Auxiliary2, Alarm & Aux2 & Aux3,
Alarm & Auxiliary3, Auxiliary2, Aux2 & Aux3,
Auxiliary3
Range: On, Off
4.9.7 RTD SHORT/LOW TEMP
Range: Off, Latched, Unlatched
Range: Alarm, Alarm & Auxiliary2, Alarm & Aux2 & Aux3,
Alarm & Auxiliary3, Auxiliary2, Aux2 & Aux3,
Auxiliary3
Range: On, Off
4 SETPOINTS
GE Multilin