Mitsubishi Electric NZ2GF2B-60TCTT4 User Manual page 212

(d) When auto tuning is started with the temperature process value (PV) within the
stable judgment width (1 ()) after the operating status is changed from stop to
run
Until the temperature process value (PV) goes outside the stable judgment width (1 ()), the data measured
after the operating status is changed to run can be used. Therefore, the simultaneous temperature rise
parameter can be calculated with auto tuning.
Temperature
process value
(PV)
Self-tuning start
CH□ Operation monitor
(RX11 to RX14)
CH□ Auto tuning status
(RX20 to RX23)
CH□ Auto tuning instruction
(RY20 to RY23)
CH□ PID auto-correction status
(b0 of RWr14 to RWr17)
CH□ Simultaneous temperature rise
parameter correction status
(b1 of RWr14 to RWr17)
CH□ Simultaneous temperature rise
parameter error status
(b9 of RWr14 to RWr17)
CH□ Self-tuning error
(b10 of RWr14 to RWr17)
CH□ AT simultaneous temperature rise
parameter calculation completion
(b0, b4, b8, b12 of RWr3)
CH□ AT simultaneous temperature rise
parameter calculation error status
(b1, b5, b9, b13 of RWr3)
210
Dead time
Simultaneous
temperature rise
AT start
ON
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Maximum gradient
ON
Auto tuning waveform
Time
CH□ Self-tuning flag
(RWr14 to RWr17)
CH1 to CH4
AT simultaneous
temperature rise
parameter calculation
flag (RWr3)