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Raychem-AR-H58692-ACS30UIT2Programming-EN-1805
TABLE 2.4 ALARM TYPE HEADINGS AND DESCRIPTIONS
Low Temp
RTD temperature went below low temp alarm setting.
Relay Failure Alarm
•
EMR was commanded to turn off. However, a heating cable
current was still being detected. This condition can indicate a
failed contactor (stuck on).
•
EMR was commanded to turn on. However, a heating cable
current was not detected. This condition can indicate a failed
contactor (stuck off) or no line voltage.
RTD Failure
Open or shorted RTD detected
TABLE 2.5 EVENTS AND DESCRIPTIONS
EVENT
DESCRIPTION
Alarm Ack
Date and time stamps when an alarm was acknowledged.
Comm Alarm
Communication with a specified nVent RAYCHEM device has been
interrupted.
Comm OK
Communication with device/s was restored.
Events Cleared
Date and time stamps when Events menu was cleared in
System|Maint. window.
Fail Safe Alarm
Control mode of circuit has been switched to Fail Safe control mode.
Fail Safe OK
At least one valid RTD value was restored, allowing normal control
to resume.
Ground-Fault Alarm
Heating cable’s ground-fault current has exceeded Ground-Fault
Alarm limit for circuit.
Ground-Fault OK
Ground fault returned to acceptable range.
Ground-Fault Trip
Heating cable’s ground-fault current has exceeded Ground-Fault Trip
limit for circuit and has disabled the contactor or SSR.
Ground-Fault Trip OK
Ground-fault current returned to acceptable range and Alarm Reset
Button was pushed.
Heating cable Time Reset Heating cable hours counter field was reset to 0.
High Temp
RTD temperature has exceeded high temp alarm limit for circuit.
High Temp Cut-Out OK
RTD temperature return to acceptable range.
Low Temp
RTD temperature has dropped below the low temp alarm limit for circuit.
Normal
The alarm condition noted has been cleared.
Relay Cycle Reset
The relay cycles counter field was reset to 0.
Relay Failure Alarm
•
EMR was commanded to turn off. However, a heating cable
current was still being detected. This condition can indicate a
failed contactor (stuck on).
•
EMR was commanded to turn on. However, a heating cable
current was not detected. This condition can indicate a failed
contactor (stuck on).
Relay OK
Heating cable current returned to 0 when EMR was commanded to
be off. This indicates EMR is working properly.
RTD OK
RTD failure indications (open or short) returned to acceptable range.
RTD Failure
The specified RTD has failed.
System Restart
ACS-30 system has restarted at time noted.
Temp OK
Control Temp returned to acceptable range.
