YOKOGAWA UT Advanced UT32A User Manual page 174

Deviation High Limit Alarm and Deviation Low Limit Alarm
Deviation high limit
alarm output
Target setpoint
Deviation low limit
alarm output
When a negative setpoint is set for the deviation high limit alarm setpoint, the deviation setpoint will be
lower than the SP.
Moreover, when a positive setpoint is set for the deviation low limit alarm setpoint, the deviation setpoint
will be higher than the SP.
Deviation High and Low Limits Alarm
high and low limits
alarm output
Target setpoint
Deviation within High and Low Limits Alarm
Deviation within
high and low limits
Target setpoint
IM 05P01D31-01EN
OFF ON
Deviation high limit
alarm setpoint (positive setpoint)
(SP)
Deviation low limit
alarm setpoint (negative setpoint)
Contact type in the figure above: Energized when an event occurs (factory default).
Deviation
OFF ON
Deviation high and
low limits alarm setpoint
(SP)
Contact type in the figure above: Energized when an event occurs (factory default).
ON OFF
alarm output
Deviation within high
and low limits alarm setpoint
(SP)
Contact type in the figure above: Energized when an event occurs (factory default).
PV
Alarm hysteresis
OFF
OFF
PV
Alarm hysteresis
ON
PV
Alarm hysteresis
11.1 Setting Alarm Type
OFF
Alarm hysteresis
ON OFF
Time
ON OFF
Alarm hysteresis
Time
OFF ON
Alarm hysteresis
Time
11-3
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