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MELSEC-Q
3 SPECIFICATIONS
3.5.22 Control response parameter (buffer memory address 49, 81: Un\G49, Un\G81)
(1) The control response parameter is used to set the response to a PID control set
value (SV) change in any of three levels (fast, normal and slow).
(a) Fast : sets 0.
Choose this level to give faster response to a set value change.
Note that the setting of "Fast" will increase overshooting.
(b) Slow : sets 1.
Choose this level to suppress the overshooting of a set value
change. Note that this will increase the settling time.
(c) Normal : sets 2.
Provides the intermediate characteristic between "Fast" and
"Slow".
Time
Process value (PV)
Set value (SV) 2
Set value (SV) 1
Change
Set value (SV) change point
Fast
Normal
Slow
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