Omron E5AK PROGRAMMABLE TYPE User Manual page 182

CHAPTER 8 TROUBLESHOOTING
8.4 Checking Operation Restrictions
8--6
With the E5AK-T controller, auto-tuning or self-tuning sometimes do
not operate depending on how functions are combined. The table below
summarizes the main operating restrictions.
If the E5AK-T controller is not operating properly, first check whether
operating conditions violate the restrictions in this table.
Restriction Restriction
At heating and cooling
control
At position-proportional
control
At ON/OFF control
At AT execution
At reset
Items marked by a "x" indicate combinations of conditions that are not acceptable during AT
execution.
Inoperable or Invalid Functions
AT Execution Limitter Function
40%AT
40% AT
Manipulated variable
Manipulated variable
¢
MV change rate
MV change rate
Manipulated variable
¢
MV change rate
Other
ON/OFF control
Parameter setting