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Alarm
* This function is an
option.
This device provides the multi-alarm function (option) that allows
simultaneous detection of a maximum of 4 types of alarming.
Multi-alarming
It allows a maximum of 4 types of alarm settings (among which, one is
dedicated to loop/heater disconnection), detects those types of alarm
individually, and makes logical OR before outputing it to the alarm
relay.
(Multi-alarm)
Alarm setting 1
Alarm setting 2
Alarm setting 3
Alarm setting 4
(dedicated to loop/
heater break Alarms)
Operation procedure
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(Alarm-1 type)
(Alarm-2 type)
* For the setting in the above figure, the result of ORing of the heater break alarm,
holding -featured low-limit deviation alarm, and high-limit absolute alarm is output.
Parameter to be used
Decision of Alarm 1
Decision of Alarm 2
Decision of Alarm 3
Decision of loop/
heater break Alarms
Setting 4
Selection from
B-group
55
Alarm relay
OR
Setting 3
Setting 2
Setting 1
Each one selected
from A-group
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