Omron E5AK User Manual page 49

Setting Example
1 second min.
AT execute
About PID Param-
eters
In this example, let's execute 40%AT.
(1) Select [ ] (level 1 mode) using the
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 [
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
returns to [ ] ("AT cancel").
In addition to AT, the E5AK is also provided with fuzzy self-tuning
(ST) that allows automatic calculation of the PID parameters
suited to the control target. However, note that the ST function op-
erates only during standard control by temperature input. For fur-
ther information regarding the ST, please see page 5-34 and A-14.
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 5-13).
3.7 Adjusting Control Operation
or
] "AT execute/cancel" is displayed. In this
] "AT cancel"
].
keys. For details
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