Pid Auto Tuning - Fuji Electric ZKME Instruction Manual

10.4.14 PID auto tuning

Description
 Heater temperature of the detector is PID controlled.
Optimize each value of P (proportion), I (integration) and D (derivation) under the environment that
the unit is installed.
Note: Each value of P, I and D has been set at shipping. If temperature is not controllable under that
environment, execute PID auto tuning.
 Execute PID auto tuning during measurement.
Measured value and analog output get to be unstable during PID auto tuning, because of making
control temperature up and down.
PID auto tuning is a part of maintenance that an analog output can be a hold value (Refer to the
paragraph "10.5.9").
 PID auto tuning is not executed during auto calibration or automatic blowdown.
(You can not start PID auto tuning at the same time as them.)
 Auto calibration or automatic blowdown is not executed during PID auto tuning, and it is executed
after PID auto tuning is over.
 Operation logs of PID auto tuning are not stored. (Refer to the paragraph "10.4.5").
Operation
(example)
Key operation
(1)
(2)
(3)
(4)
How to cancel
 Press the
key to cancel PID auto tuning.
If you cancel PID auto tuning, each value of P, I and D is to be the value before tuning.
INZ-TN1ZKME-E
Execute PID auto tuning from the screen
Display the screen on the right in accordance with the key
operation summary and press the
PID AUTO TUNING START screen.
Press the key to start PID auto tuning.
Temperature to be displayed changes during PID auto
tuning.
When PID auto tuning is finished automatically, the
display returns to the screen on the right.
Description
key to display the
- 83 -
Displayed message
(LCD)
MAINTE MENU
PID AUTO TUNING
PID AUTO TUNING
START
PID AUTO TUNING
°C
MAINTE MENU
PID AUTO TUNING