272
3-6 AT (Expansion Mode)
To enter the Expansion Mode, change the connection of jumper connector from
2-3 to 1-2.
SW1
MODE TEST
Change this connection.
Do not change this connection. This is for factory-use only.
MODE
MODE
13
13
Default setting
Expansion Mode
Change the connection to 1-2
Left-side View of the Unit
By executing AT (auto-tuning), the most suitable PID parameters can be set.
The AT function allows PID parameter calculation by recognizing the character-
istics of the object from the waveform (amplitude and period) to be generated
when ON/OFF control is executed (refer to the following diagram). The PID pa-
rameters obtained will be refreshed automatically, and after completion of auto-
tuning, the Temperature Control Unit will start operating using the parameters.
SP
0
Auto-tuning starts Auto-tuning completes
Limit period with 100%
controlled variation width
Auto-tuning can be started by taking the following procedure on the Program-
ming Console.
Default: SP = 100 °C and PV = 98 °C
AT (Expansion Mode)
Section 3-6
To Next Page
Loading...
