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6 Parameters
E5@C-T Digital Temperature Controllers User’s Manual (H185)
6-10 Advanced Function Setting Level
6
This parameter executes robust tuning (RT).
mani
Manual MV Initial Value
Control must be set to 2-PID control.
A Position-proportional Model set to Close Control
with the Direct Setting of Position-proportional MV
parameter set to ON must be used.
This parameter sets the initial value of the manual MV to use after control moves from Auto-
matic Mode to Manual Mode.
If the Manual MV Limit Enable parameter is set to ON, the setting range will be the MV lower
limit to the MV upper limit.
z Related Parameters
Manual Output Method (Advanced Function Setting Level): Page 6-92
Manual MV Limit Enable (Advanced Function Setting Level): Page 6-101
rt
RT
Control must be set to 2-PID control. If the input
type is set for a temperature input, either the
Standard or Heating/Cooling parameter must be set
to standard control or, if the Standard or
Heating/Cooling parameter is set to
heating/cooling control, the Heating/Cooling
Tuning Method parameter must not be set to air or
water cooling.
Or, a Position-proportional Model must be used.
• When autotuning is executed with RT selected, PID constants are automatically set that
make it hard for control performance to degenerate even when control object’s
characteristics change.
• Even when hunting occurs for PID constants when auto-tuning is executed in normal
mode, it is less likely to occur when auto-tuning is executed in RT Mode.
Note:The Integral/Derivative Time Unit parameter changes to 0.1 when the RT (Robust Tuning)
parameter is changed from OFF to ON.
z Related Parameters
AT Execute/Cancel (Adjustment Level): Page 6-27
Proportional Band, Integral Time, and Derivative Time (Adjustment Level): Page 6-36
PID*Proportional band, PID*Integral time, PID*Derivative time (PID setting level): Page 6-46
Proportional Band (Cooling), Derivative Time (Cooling), and Integral Time (Cooling)
(Adjustment Level): Page 6-37
PID ON/OFF (Initial Setting Level): Page 6-63
Integral/Derivative Time Unit (Advanced Function Setting Level): Page 6-86
Function
Setting
Setting range Unit Default
Standard control and position-proportional control: −5.0 to 105.0 % 0.0
Heating/cooling control: −105.0 to 105.0
See
See
Function
Setting
Setting range Default
on: RT function ON, off: RT function OFF off
See
See
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