Control Response Parameter (Buffer Memory Address: 31 H , 51 H , 71 H , 91 H ); Auto/Man Mode Switching (Buffer Memory Address: 32 H , 52 H , 72 H , 92 H ) - Mitsubishi Electric MELSEC Q Series User Manual
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3 SPECIFICATIONS
3.5.23 Control response parameter (buffer memory address: 31
3.5.24 AUTO/MAN mode switching (buffer memory address: 32
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(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
: Choose this level to give faster response to a set value change.
Note that the setting of "Fast" will increase overshooting.
(b) Slow : Choose this level to suppress the overshooting of a set value change.
Note that this will increase the settling time.
(c) Normal : Provides the intermediate characteristic between "Fast" and "Slow".
Process value (PV)
Set value (SV) 2
Change
Set value (SV) 1
(1) This setting is made to select the manipulated value between the PID operation-
calculated value and the user-set value.
• AUTO : The manipulated value calculated by PID operation is used to
calculate the ON time of the control period.
• MAN
: The manipulated value written to MAN output setting (buffer memory
address: 33
control period.
(2) When AUTO is switched to MAN, the manipulated value calculated with PID
operation is transferred to MAN output setting (buffer memory address: 33
73
, 93
) to prevent a sudden manipulated value change. (Bumpless switching)
H
H
On completion of switching to the manual mode, the corresponding bit of MAN
mode shift completion flag (buffer memory address: 1E
Set the manipulated value in the MAN mode after making sure that the
corresponding bit of the manual mode shift completion flag has turned on.
(3) When executing auto tuning, set "0: Auto (AUTO)".
When the setting is "1: Manual (MAN)", auto tuning will not be executed.
search engine
, 51
H
Set value (SV) change point
, 52
H
, 53
, 73
, 93
) is used to calculate the ON time of the
H
H
H
H
MELSEC-Q
, 71
, 91
)
H
H
H
Fast
Normal
Slow
Time
, 72
, 92
)
H
H
H
, 53
H
H
) turns to 1 (ON).
H
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,
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