Watlow MICRODIN - Manual (Page 34)

4 . 2 Wa t l o w M i c r o D I N
The System
Auto-tune
Auto-tuning allows the controller to explore the responsiveness of the system in
order to determine an effective set of parameters for PID control. To do this it
crosses an auto-tune set point five times, then controls at the normal set point
using the new parameters.
Use Auto-tune Set Point (PID Group) to select the temporary set point, as a
percentage of the normal set point, that the controller will tune to. Initiate or
cancel the auto-tune process with Auto-tune (PID Group). The default value is
90%.
Figure 4.2 — Auto-tuning
Features
Time
Temperature
Auto-tune initiated by user
Process Set Point
Auto-tune Set Point
(default 90% of process set point)
Auto-tune complete