Pid Constant; Stable Temperature Status; Balanced Status - Omron E5AK User Manual

F PID Constant
Refreshing
Conditions
Temperature
F Stable Temperature Status
Set point
F Balanced Status
If the step control amount is applied before the maximum temperature
slope (R) is obtained, SRT will not renew any PID constant. If the pro-
portional band obtained from the R and L values that were measured
before the imposition had been completed is larger than the present
proportional band, the PID constants will be renewed because the mea-
sured value is in the direction towards the suitable proportional band
value, and the set point at that time will be the SRT-executed set point.
Slope (R)
SP
If the temperature is within the stable range for a certain time, it is
deemed that the temperature is stable. This time is called stability
judgement time. Like PID constants, stability judgement time is
adjusted with fuzzy self-tuning according to the characteristics of the
object to be controlled. Fuzzy self-tuning will not be activated if the
temperature is stable because the Temperature Controller deems that
temperature control is smooth.
Shorter than the stability judgement time
Stable
If the process value is within the stable range for 60s when there is no
output,it is deemed that the temperature is balanced.
Stable range
Time
Stability judgement time
FUZZY SELF-TUNING
Stable range
Stable range
(Set to 15.0_C
before shipping)
Stable
A--15