6 Parameter Settings and Functions
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Alarm output hysteresis applies to heater burnout alarm [HBA] in the same manner.
This parameter does not appear if Loop Break Alarm [LBA] or Sensor Break Alarm [SBA] is
selected.
6.4.5 Alarm N.O./N.C. [PAR4 → A!N/A@N/A#N]
You can set the relay contact method in the event of an alarm output.
Setting Description
NO
Normally open
Stays open when normal and closes in the event of an alarm.
NC
Normally closed
Stays closed when normal and opens in the event of an alarm.
A!N Select contact type for alarm output 1.
A@N
Select contact type for alarm output 2.
A#N Select contact type for alarm output 3.
Parameter Setting range
Unit
PAR4
A!N
NO / NC NO - A@M
A#M
Front LED Indicators
NO
(normally open)
OFF Open
□ OFF
ON Close ■ ON
NC
(normally closed)
OFF Close
□ OFF
ON Open ■ ON
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