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1) Kinds of alarm
• Absolute value alarm, deviation alarm, combination alarm, and zone alarm are available.
(For details, see Table 4, Alarm action type codes on page 4.)
ON delay function
ON delay setting time
ON
Alarm
OFF
ON
OFF
ON
OFF
Without ON delay function
With ON delay function
Relay output
ON
OFF
ON
OFF
ON
OFF
Without
De-energizing
function
With
De-energing
function
No.
Function
Description Parameters to set
q Hysteresis Set the hysterisis to avoid chattering. Alarm 1 :
Alarm 2 :
Alarm 1 :
Alarm 2 :
w ON delay
The alarm is turned on with delay of a certain seconds
as previously set after PV goes in the alarm band.
r Error status
alarm
Alarm is turned on when error indications are
displayed.
t De-energizing Alarm output can be de-energized.
e Alarm latch Keeps the alarm ON status once an alarm is
turend ON. To cancel the alarm latch, please take
one of the following procedure.
i) Turn ON the controller again.
ii) Turn the alarm latch settings to OFF once.
iii) Use alarm lacth cancel parameter.
iv) Cancel by Digtal input (DI1).
v) Cancel by communication function.
Alarm 1 :
Alarm 2 :
Alarm 1 :
Alarm 2 :
Alarm 1 :
Alarm 2 :
6-4 Alarm function [option]
2) Alarm function
Energizing/de-energizing function
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