Omron e5ck User Manual page 55

Setting Example
1 second min.
AT execute
End of AT execution
About PID Parame-
ters
AT Execution Tim-
ing
In this example, let's execute 40%AT.
(1) Select the menu display, and select 
or keys. For details on selecting the menu display, see page
1 8.
(2) Press the key to enter the level 1 mode. The top parameter in the
setup mode 
the parameter setting is 
(3) Press the key to specify [
(4) The AT LED flashes, and AT execution starts. When the AT LED goes
out (end of AT execution), the parameter automatically returns to
 : AT cancel".
When control characteristics are already known, the PID parameters can be set di
rectly to adjust control.
PID parameters are set in the proportional band" (P), integrated time" (I) and
derivative time" (D) parameters (level 1 mode).
For details on the setting ranges of these parameters, see chapter 5 Level 1 Mode
(page 5 17).
The E5CK T differs from fixed value type controllers in that the SP changes auto
matically . So, the timing of AT execution is the most important factor in control.
To obtain PID parameters for a specific SP , make a fixed value program as follows
and execute AT.
10 minutes
100
Step 0
3.8 Adjusting Control Operation
: AT execute/cancel" is displayed. In this example,
: AT cancel".
].
Set value
Step 0
: level 1 mode" using the
SP Time
100 0.10
3–25