Omron E5*C Series User Manual

5 - 45
5 Advanced Operations
E5@C-T Digital Temperature Controllers User’s Manual (H185)
5-14 Determining PID Constants for PID Sets (Autotuning for All PID Sets)
5
5-14-1 Autotuning All PID Sets (Autotuning)
5-14 Determining PID Constants for PID
Sets (Autotuning for All PID Sets)
You can perform autotuning for all PID sets at the same time to automatically calculate and set the PID
constants for the PID sets in the order of the set numbers. This greatly reduces the number of opera-
tions required to adjust control characteristics.
You can use this function only when you use automatic selection of PID sets according to temperature
zones with fixed SP operation.
z The PID Sets and SPs to Which Autotuning for All PID Sets Applies
Autotuning PID sets is applied to all PID sets from the starting point to the ending point.
Example: The following example is for when the zone for PID set 1 contains the fixed SP (FSP) and
the zone for PID set 8 contains the All PID AT Upper Limit SP.
5-14-1 Autotuning All PID Sets (Autotuning)
Introduction
PID sets for which autotuning applies SP for autotuning the PID set
Starting point
(lower limit)
The PID set for the zone that contains the
fixed SP (FSP)
Fixed SP (FSP) (Adjustment Level)
Intermediate
points
PID sets n (n = 2 to 7) that are between the
PID sets for the starting and ending points
Mean value of the PID n upper limit and PID set
n-1 upper limit
Example: The SP for PID set 3 is the mean
value of the upper limit of PID set 3
and the upper limit of PID set 2.
Ending point
(upper limit)
The PID set for the zone that contains the
All PID AT Upper Limit SP
All PID AT Upper Limit SP (Initial Setting Level)
Value
PID set 8
Input indication range upper limit
Input indication range lower limit
PID set 7
PID set 3
PID set 2
PID set 1
(1) Fixed SP (FSP)
PID 1 Automatic Selection Range Upper Limit
(2) Autotuning SP of PID set 2
PID 2 Automatic Selection Range Upper Limit
(3) Autotuning SP of PID set 3
PID 3 Automatic Selection Range Upper Limit
PID 6 Automatic Selection Range Upper Limit
(7) Autotuning SP of PID set 7
PID 7 Automatic Selection Range Upper Limit
(8) All PID AT Upper Limit SP
Autotuning for the
PID sets is
performed in this
range in order from
(1) to (8).
For the PID sets between the
starting and ending points, the
mean value for each PID set
zone is the SP for autotuning.
The All PID AT Upper
Limit SP is the ending
point for autotuning.
The fixed SP is the starting
point for autotuning.

Omron E5*C Series Specifications

General

Brand	Omron
Model	E5*C Series
Category	Controller
Language	English