Omron E5EK PROGRAMMABLE TYPE User Manual page 62

CHAPTER 3 BASIC OPERATION
Setting Example
1 second min.
AT execute
End of AT execution
About PID Param-
eters
AT Execution Tim-
ing
3--26
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
1-10.
(2) Press the key to enter the level 1 mode. The top parameter in
the setup mode "
example, 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 re-
turns to " : AT cancel".
When control characteristics are already known, the PID parameters can be set
directly 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 5-18).
The E5EK-T differs from fixed-value type controllers in that the SP changes au-
tomatically. So, the timing of AT execution is the most important factor in con-
trol.
To obtain PID parameters for a specific SP , make a fixed-value program as follows
and execute AT.
10 minutes
100
Step 0
: level 1 mode" using the
: AT execute/cancel" is displayed. In this
: AT cancel".
].
Set value
SP
Step 0 100
Time
0.10