TOHO ELECTRONICS TTM200 - Manual (Page 81)

48-7009-E 5-11
2) How to start self-tuning
* Self-tuning is a function to determine the PID constant when starting operation of the controller and
when changing the target value.
After determining the PID constant, self-tuning is not executed in the next start of operation, unless
the target value is changed.
* Self-tuning is executed when so set in the tuning type setting in SET 04 (control setting mode).
Auto-tuning is set at factory shipment.
For constant value run mode screen:
PV value (present value)
SV value (target value)
Hold MODE key pressed for 2 seconds.
Input 1 setting screen
Each set screen
Each setting mode
Press the ▲ key three times. Press it, however, twice for TTM-204.
Press MODE key 12 times.
S04-12 Tuning type setting screen
Control setting mode
* Tuning types are set in this screen.
* The number displayed in the screen matches with that listed in the tuning type
setting table.
* Use the ▲/▼ key for the setting.
* “1: primary auto-tuning” is set at factory shipment.
Changing the setting to “2: primary self-tuning” results in self-tuning.
Tuning type setting table
No. Type
1 Primary auto-tuning
2 Primary self-tuning
3 Secondary auto-tuning
4 Secondary self-tuning
5 Primary/secondary auto-tuning
* Holding the MODE key pressed for 2 seconds moves each setting screen to the run mode screen.
* In about 2 minutes, each setting screen (or any setting screen) automatically moves back to the run mode
screen.
Hold
MO
DE
ke
y
pre
ss
ed
for
2
sec
onds
.
For program run mode screen:
PV value (present value)
SV value (PRoG)
Hold MODE key pressed for 2 seconds.
Setting mode is the same as that for Hereinafter,
to the input 1 setting screen similarly to that for
the constant value run mode