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• Loop break alarm output setting items [When Loop break alarm output (016) is
selected]
Character
Setting Item, Function, Setting Range
Factory Default
Loop break alarm time
0 minutes
• Sets the time to assess the Loop break alarm.
• Setting to 0 (zero) disables the alarm.
• Setting range: 0 to 200 minutes
Loop break alarm band
0
• Sets the band to assess the Loop break alarm.
• Setting to 0 (zero) disables the alarm.
• Setting range: 0 to 150 ( ), 0.0 to 150.0 ( )
DC voltage, current inputs: 0 to 1500 (The placement of the decimal
point follows the selection.)
[Loop break alarm]
When the control action is Reverse (Heating) control:
After MV has reached 100% or the OUT high limit value, and if the PV does not reach the
Loop break alarm band setting within the time allotted to assess the Loop break alarm, the
alarm output will be turned ON.
Likewise, after MV has reached 0% or the OUT low limit value, and if the PV does not drop
to the Loop break alarm band setting within the time allotted to assess the Loop break alarm,
the alarm output will be turned ON.
When the control action is Direct (Cooling) control:
After MV has reached 100% or the OUT high limit value, and if the PV does not drop to the
Loop break alarm band setting within the time allotted to assess the Loop break alarm, the
alarm output will be turned ON.
Likewise, after MV has reached 0% or the OUT low limit value, and if the PV does not reach
the Loop break alarm band setting within the time allotted to assess the Loop break alarm,
the alarm output will be turned ON.