Rockwell Automation 900-TC32 Digital Temperature Controllers, Series B - Manual (Page 104)

Publication 900-UM007D-EN-E - January 2011
3-34 Configuration & Basic Operation
EXAMPLE
Operation Procedure: Execute Self-Tuning (ST)
1. Press the
O
key for at least 3 seconds to move from the Operation
function group to the Initial Setting function group.
Figure 3.66
2. Select the ST parameter by pressing the
M key.
3. Press the
U key to select on. Note: The default is ON.
4. To return to the Operation function group, press the
O
key. The
temperature display blinks during Self-Tuning (ST) execution, and stops
when it is complete.
Figure 3.67
Note: When control characteristics are already known either from experience
or previous use of the AT or ST parameter, the individual PID
parameters can be set directly to adjust control. PID parameters are set
in the Proportional Band (P), Integral Time (I), and Derivative Time
(D) parameters in the Adjustment function group.
Conditions that Start Self-Tuning (SRT)
Self-tuning by Step Response Tuning (SRT) is started when either of the two
following major conditions are met:
• Program execution is started
• The set point is changed
The following table provides some additional details:
in-t
5
Input type
st
on
ST
C 25
100
ST