Omron E5AC-T User Manual page 138

RT Features
• Even if hunting occurs for PID constants when autotuning is executed in normal mode, it is less
likely to occur when autotuning is executed in RT Mode.
Temperature
Set value
Start of control
• When the temperature (PV) falls short of the set point for the PID constants when using
autotuning in normal mode, executing autotuning in RT Mode tends to improve performance.
Temperature
Set value
Start of control
• When the manipulated variable (MV) is saturated, the amount of overshooting may be somewhat
higher in comparison to PID control based on autotuning in normal mode.
This procedure selects RT mode.
Operating Procedure
1
Press the M Key several times in the Advanced Function
Setting Level to display rt (RT: robust tuning).
2
Press the U or D Key to select on (RT ON).
The default is off.
E5@C-T Digital Temperature Controllers User's Manual (H185)
Temperature
Much hunting occurs.
Set value
Time
Start of control
Temperature
Set value
Time
Start of control
Hunting is reduced.
Time
Time
Advanced Function Setting
Level
4 Basic Operation
rt
RT
off
rt
on
4 - 53
4