3.7 Determining PID Constants (AT, ST, Manual Setup) 
3-11 
 
Basic
Operations 
 
● ST Stable Range 
 
Operating Procedure 
The ST stable range determines the set value under which ST 
(self-tuning) functions operate.   
This procedure sets the ST stable range to 20°C.   
 
 
1.  Press the M Key from the initial setting level (1) and select “ST 
stable range” (IS mode).   
 
 
 
 
2.  Use the U and D Keys to set the parameter to 20°C.   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ALM mode
IS mode 
M 
M 
M 
5 1 
1
 
2 ALM ALM SP 
OUT 
Initial settin
 level 
1
 
 SP mode
- 1 - 
1
 
2 ALM ALM SP 
OUT 
0 
1
 
2 ALM ALM SP 
OUT 
5 3 
1
 
2 ALM ALM SP 
OUT 
0 
2 
1
 
2 ALM ALM SP 
OUT 
U/D 
・ST stable 
range