YOKOGAWA UTAdvanced UT55A, User Manual

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10-19
IM 05P01C31-01EN
Output
(Control
and
Retransmission)
Functions
10.12 Setting Preset Output Value
10.12.1 Setting Output Value in STOP Mode (Preset Output)
Description
Preset output becomes the output when the operation mode is switched from RUN to
STOP.
The preset output is not limited by the output high and low limits.
The preset output is prepared for each PID parameter group, and works according to the
selected PID parameter group.
Preset output
RUN state STOP state
Time
0%
50%
100%
Control output
Point where the controller
enters STOP state
The preset output (fixed) applies
according to the preset output.
Control output obtained by
computation based on
deviation between SP and PV.
► Output limiter: 10.3 Setting Limiter to Control Output
Preset Output in Heating/cooling Control
The preset output can be set for both of the heating and cooling sides.
The computation starts from the value of 50% of internal computed value (value before
split into heating- and cooling-side outputs) when the operation mode is switched from
STOP to RUN.
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