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Chapter 4: Controller Inputs and Outputs
SOLO Basic Temperature Controller User Manual
4–6
Alarm Output Types
Set
Value
Alarm Type Alarm Output Operation
0 Alarm function disabled Output is OFF
1
Deviation upper- and lower-limit:
Alarm output activates when PV value is higher than the setting value
SV+(AL-H) or lower than the setting value SV-(AL-L).
ON
OF
F
SV-(AL-L)
SV
SV+(AL-H)
2
Deviation upper limit:
Alarm output activates when PV value is higher than the setting value
SV+(AL-H).
ON
OF
F
SV SV+(AL-H)
3
Deviation lower limit:
Alarm output activates when PV value is lower than the setting value
SV-(AL-L).
ON
OFF
SV-(AL-L)
SV
4
Absolute value upper and lower limit:
Alarm output activates when PV value is higher than the setting value
AL-H or lower than the setting value AL-L.
ON
OF
F
AL-L AL-H
5
Absolute value upper limit:
Alarm output activates when PV value is higher than the setting value
AL-H.
ON
OF
F
AL-H
6
Absolute value lower limit:
Alarm output activates when PV value is lower than the setting value
AL-L.
ON
OF
F
AL-L
7
Hysteresis upper limit alarm output:
Alarm output activates when PV value is higher than the setting value
SV+(AL-H). The alarm output turns OFF when the PV value is lower
than the setting value SV+(AL-L).
ON
OFF
SV SV+(AL-L) SV+(AL-H)
8
Hysteresis lower limit alarm output:
Alarm output activates when PV value is lower than the setting value
SV-(AL-H). The alarm output turns OFF when the PV value is higher
than the setting value SV-(AL-L).
ON
OFF
SV-(AL-H) SV-(AL-L) SV
9
Disconnection Alarm: This alarm output is enabled if the sensor
connection is incorrect or has been disconnected.