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