5-8
<Toc>
<5. Parameters>
IM 05D01C12-41E
4th Edition: May 31, 2006-00
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PID-related Parameters
The following parameters are displayed when “1Gr” is set to PID parameter display number
(PID). In this case, the corresponding target setpoint is 1.SP (target setpoint-1).
To set PID corresponding to target setpoint 2 to 4, set “2Gr”, “3Gr”, or “4Gr” to PID. The
relevant parameters will then be displayed.
Proportional band/Heating-
side proportional band
(in heating/cooling control)
0.1 to 999.9%
In heating/cooling control: 0.0 to 999.9%
(heating-side ON/OFF control applies
when 0.0)
5.0%
Integral time
Heating-side integral time
(in heating/cooling control)
OFF (0), 1 to 6000 second.
OFF (0), 1 to 6000 second.
240 second.
60 second.
Derivative time
Heating-side derivative time
(in heating/cooling control)
Output high limit
Heating-side output high
limit (in heating/cooling
control)
Output low limit
Cooling-side output high
limit (in heating/cooling
control)
-5.0 to 105.0%
Heating-side limiter in heating/cooling
control: 0.0 to 105.0% (1.OL < 1.OH)
100%
Heating/cooling control:
100.0%
0.0%
Heating/cooling control:
100.0%
-5.0 to 105.0%
Cooling-side limiter in heating/cooling
control: 0.0 to 105.0% (1.OL < 1.OH)
SD (shutdown): Set in manual
operation in 4-20 mA control output.
The control output is set at 0 mA.
Manual reset
-5.0 to 105.0%
(enabled when integral time “1.I” is OFF)
The manual reset value equals the
output value when PV = SP is true.
For example, if the manual reset value
is 50%, the output value is 50% when
PV = SP becomes true.
50.0%
ON/OFF control
hysteresis
Heating-side ON/OFF
control hysteresis (in
heating/cooling control)
In ON/OFF control: 0.0 to 100.0%
of PV input range span
Position proportional PID control
or heating/cooling control: 0.0 to
100.0%
ON/OFF control: 0.5% of
PV input range span
Position proportional PID
control and heating/cooling
control: 0.5%
(1.P)
(1.I)
(1.D)
(1.OH)
(1.OL)
(1.MR)
(1.H)
Parameter
Symbol
Name of Parameter
Setting Range and Description
Initial Value
User Setting
Target Item
in CD-ROM
Direct/reverse action
switching
RVS (0): reverse action, DIR (0): direct action
RVS (0)
Cooling-side
proportional band
0.0 to 999.9%
(Cooling-side ON/OFF control
applies when 0.0)
5.0%
Cooling-side integral
time
OFF (0), 1 to 6000 second
240 second.
60 second.
OFF (0), 1 to 6000 second
Cooling-side derivative
time
Cooling-side ON/OFF
control hysteresis
0.0 to 100.0%
Dead band
In heating/cooling control: -100.0 to 50.0%
In position proportional PID control: 1.0 to
10.0%
3.0%
0.5%
Preset output/Heating-
side preset output
(in heating/cooling control)
Cooling-side preset
output
-5.0 to 105.0%
In heating/cooling control:
Heating side 0.0 to 105.0%
In Stop state, fixed control output
can be generated.
0.0%
0.0 to 105.0%
In Stop state, cooling-side fixed
control output can be generated.
0.0%
Deviation
(PV-SP)
+
-
Direct
action
Reverse
action
Control output
0%
100%
(1.DR)
(1.Pc)
(1.Ic)
(1.Dc)
(1.Hc)
(1.DB)
(1.PO)
(1.Oc)
Ref.4.1(1)
Ref.4.1(1)
Ref.4.1(1)
Ref.2.1(3)
Ref.4.1(1)
Ref.2.1(1)
Ref.4.1(1)
Ref.2.1(8)
Ref.4.1(1)
same as
above
same as
above
same as
above
same as
above
same as
above
same as
above
same as
above
Содержание NEW GREEN SERIES
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