YOKOGAWA UT Advanced UT32A, User Manual

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11-4
IM 05P01D31-01EN
Target SP High Limit Alarm and Target SP Low Limit Alarm
ON
ON
Taraget SP
OFF
OFF
Contact type in the figure above: Energized when an event occurs (factory default).
Time
Target SP high limit
alarm setpoint
Target SP low limit
alarm setpoint
Target SP high limit
alarm output
Target SP low limit
alarm output
Alarm hysteresis
SP changing SP changing SP changing SP changing
SP in ramp rate setting
Alarm hysteresis
Target SP Deviation High Limit Alarm and Target SP Deviation Low Limit Alarm
PV
Alarm hysteresis
Alarm hysteresis
Time
ON OFF OFF
ON OFF OFF
Deviation high limit
alarm output
Deviation low limit
alarm output
Target SP
(SP)
Contact type in the figure above: Energized when an event occurs (factory default).
* Target SP: a set target setpoint. When the ramp-rate is set, it becomes a final target setpoint.
Deviation low limit
alarm setpoint (negative setpoint)
When a negative setpoint is set for the deviation high limit alarm setpoint, the deviation setpoint will be
lower than the target SP.
Moreover, when a positive setpoint is set for the deviation low limit alarm setpoint, the deviation setpoint
will be higher than the target SP.
Deviation high limit
alarm setpoint (positive setpoint)
11.1 Setting Alarm Type