Chapter 6. OPERATION
6-5 Manual Operation and Auto-tuning
■Manual operation
In the MANUAL mode, controller outputs can be manipulated by 
or 
on the con- sole.
●Controller functions
When outputs are displayed in the basic display state, only one digit in the output value
blinks. If the output value is incremented or decremented by 
or 
, actual output also increments or decrements. Output values differ from values being entered to setting items in that ENT need not be pressed.
The blinking digit can be moved by pressing 
or 
.
On 2G output models, when only estimated
Pressing 
displays “O p e n” , and the
Pressing 
displays “C l O S” , and the
(However, when the total time for the PID parameter of the PID set in use is set to “0”, a sudden change in output occurs.)
●Programmer functions
On 5G output models, when programmer functions are in operation with setup data C 18 setting 1, SP can be manually manipulated. When SP is displayed in the basic display state, only one digit in the SP value being entered blinks. When the SP value is incremented
or decremented by 
or 
, the actual SP output also increments or decrements. SP values differ from values being entered to setting items in that ENT need not be pressed.
The blinking digit can be moved by pressing 
or 
.
Output changes when shifting from the AUTO to the MANUAL mode are bumpless regardless of setup data C 15 setting. When shifting from the MANUAL to the AUTO mode, the SP becomes the program pattern SP, which results in a sudden change in out- put.
■Auto-tuning (AT)
When operating in the AUTO mode in either of the RUN, HOLD, FAST or END modes, setting values can be automatically written to the PID set in use by
0:AT is disabled.
1:General AT is executed.
3:AT by neural net is executed.
•
•During execution of
