CHAPTER 5: SETTINGS
469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL
5–75
5.9.6
Open RTD Sensor
PATH: SETTINGS
ZV
S8 RTD TEMPERATURE
ZV
OPEN RTD SENSOR
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 programmed as latched so that intermittent RTDs are
detected and corrective action may be taken.
5.9.7
RTD Short/Low Temp
PATH: SETTINGS
ZV
S8 RTD TEMPERATURE
ZV
RTD SHORT/LOW TEMP
The 469 has an RTD Short/Low Temperature alarm. This alarm will look at all RTDs that
have either an alarm or trip programmed 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.
OPEN
[
OPEN RTD SENSOR:
Off
Range: Off, Latched, Unlatched
MESSAGE
ASSIGN ALARM
RELAYS:
Range: Alarm, Alarm & Auxiliary2,
Alarm & Aux2 & Aux3, Alarm &
Auxiliary3, Auxiliary2, Aux2 &
Aux3, Auxiliary3
MESSAGE
OPEN RTD SENSOR
ALARM EVENTS: Off
Range: On, Off
RTD
[
RTD SHORT/LOW
TEMP
Range: Off, Latched, Unlatched
MESSAGE
ASSIGN ALARM
RELAYS:
Range: Alarm, Alarm & Auxiliary2,
Alarm & Aux2 & Aux3, Alarm &
Auxiliary3, Auxiliary2, Aux2 &
Aux3, Auxiliary3
MESSAGE
RTD SHORT/LOW
TEMP
Range: On, Off
Summary of Contents for 469
Page 62: ...2 16 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 2 INTRODUCTION ...
Page 90: ...3 28 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 3 INSTALLATION ...
Page 292: ...6 42 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 6 ACTUAL VALUES ...
Page 313: ...A APPENDIX 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL A 7 HGF5C 808841A1 HGF8 808842A1 ...
Page 315: ...A APPENDIX 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL A 9 808712A1 CDR ...
Page 320: ...A 14 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL A APPENDIX ...