TOHO TTM-i4N - Manipulated Variable of Output 1; Setting of Tuning Type

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■ Manipulated Variable of Output 1
Character Name Description Initial Value
1
SET3
CNT
Setting Mode Selection
Screen
Control Parameter Mode
Settings about Control
7
MV1
Manipulated Variable of
Output 1
Display Range: 0.0%–100.0%
Setting Range: MLL1–MLH1
00
・ It shall be used to monitor the manipulated variable of Output 1 and to set the manipulated variable during manual control.
・ A screen that displays the manipulated variable of Output 1. Setting of manipulated variable is not allowed at normal control.
Setting of manipulated variable is allowed only when the control mode is set to manual control.
■ Setting of Tuning Type
Character Name Description Initial Value
1
SET3
CNT
Setting Mode Selection
Screen
Control Parameter Mode
Settings about Control
8
TUN
Setting of Tuning Type
1

Auto Tuning: Output 1
2

Self-Tuning: Output 1
3

Auto Tuning: Output 2
4

Self-Tuning: Output 2
5

Auto Tuning: Output 1/Output 2
1
Notes:
1) It is configurable only when either Output 1 or Output 2 is set to PID control.
  2) If 4 (Output 2 Self-Tuning) is set, AT cannot be performed for Output 1.
  3) Please be careful that if 5 (Output 1/Output 2 Auto Tuning) is set, AT will also be performed for Output 1.
<Auto Tuning>
Auto Tuning calculates the PID constant through the response of ON/OFF.
Calculated PID constant can only be changed by redoing the auto tuning.
Therefore, it is ideal for the control of a situation where temperature changes periodically, such as seal-packaging
device.
  
 <Self-Tuning>
Self-Tuning is a method of tuning that automatically calculates the PID constant by observing the control wave.
It is ideal for the control of a situation where subject of control differs, setting value changes, or environment—such as
ambient temperature—changes.
Unlike auto tuning, self-tuning does not require tuning time.