Pid Control - YOKOGAWA UT Advanced UT32A User Manual

8.2.1

PID Control

Description
Setting Details
IM 05P01D31-01EN
PID control is a general control using control-related parameters PID.
When PID control is selected, PID should be obtained by auto-tuning after setting SP or
PID should be set manually.
Parameter
Name
symbol
CNT Control type
Proportional band
Heating-side
P proportional band
(in Heating/cooling
control)
Integral time
Heating-side
I integral time (in
Heating/cooling
control)
Derivative time
Heating-side
D derivative time (in
Heating/cooling
control)
Cooling-side
Pc
proportional band
Cooling-side
Ic
integral time
Cooling-side
Dc
derivative time
MR Manual reset
PID number
PIDN
selection
Number of PID
PIDG.
groups
Note 1: The PID number (1 to 4, or R) is displayed on Group display while the parameter P, I, D, Pc,
Ic, Dc, or MR is displayed.
Note
When changing the setpoint of the parameter PIDG., if the setpoint of the parameter PIDN
which belongs to the SP menu is larger than that of the parameter PIDG., the PIDN setpoint is
changed to the PIDG. setpoint.
8.2 Setting Control Type (CNT)
Display
Setting range
level
PID: PID control
ONOF: ON/OFF control (1 point of
hysteresis)
EASY ONOF2: ON/OFF control (2 points
of hysteresis)
2P2L: Two-position two-level control
H/C: Heating/cooling control
0.0 to 999.9%
When 0.0% is set, it operates as
EASY 0.1%.
Heating-side ON/OFF control applies
when 0.0% in Heating/cooling control.
OFF: Disable
EASY
1 to 6000 s
OFF: Disable
EASY
1 to 6000 s
0.0 to 999.9%
EASY Cooling-side ON/OFF control applies
when 0.0% in Heating/cooling control.
OFF: Disable
EASY
1 to 6000 s
OFF: Disable
EASY
1 to 6000 s
EASY -5.0 to 105.0%
EASY 1 to 4
STD 1 to 4
Menu symbol
CTL
8
PID
SP
CTL
8-11