Parameter - Mitsubishi Electric MELSEC iQ-F FX5 User Manual

9.5

Parameter

Set item
(s3) Sampling time (TS)
(s3)+1 Operation setting
(ACT)
(s3)+2 Input filter constant ()
(s3)+3 Proportional gain (KP)
(s3)+4 Integral time (TI)
(s3)+5 Differential gain (KD)
(s3)+6 Differential time (TD)
(s3)+7 to These devices are occupied for internal processing of PID operation. Do not change data.
(s3)+19
*1
(s3)+20 Input variation (incremental)
alarm set value
*1
(s3)+21 Input variation (decremental)
alarm set value
*1
(s3)+22 Output variation (incremental)
alarm set value
Output upper limit set value
*1
(s3)+23 Output variation (decremental)
alarm set value
Output lower limit set value
*1
(s3)+24 Alarm output
(s3)+25 PV value threshold
(hysteresis) width (SHPV)
(s3)+26 Output value upper limit (ULV)
(s3)+27 Output value lower limit (LLV)
(s3)+28 Wait setting from end of tuning
cycle to start of PID control
(KW)
*1 (s3)+20 to +24 become used only if b1, b2, or b5 are set to "1" to determine the action (ACT) (s3) of +1.
9 PID CONTROL FUNCTION
58
9.5 Parameter
Description/Setting range
1 to 32767 (ms)
b0 0: Forward operation
1: Backward operation
b1 0: Input variation alarm is invalid
1: Input variation alarm is valid
b2 0: Output variation alarm is invalid
1: Output variation alarm is valid
b3 Not used
b4 0: Auto-tuning is not executed.
1: Auto-tuning is executed
b5 0: Upper and lower limits of output value are not
valid
1: Upper and lower limits of output value are valid
b6 0: Step response method
1: Limit cycle method
b7 to b15 Not used
0 to 99 [%]
1 to 32767 [%]
0 to 32767 [100 ms]
0 to 100 [%]
0 to 32767 [10 ms]
0 to 32767
0 to 32767
0 to 32767
-32768 to +32767
0 to 32767
-32768 to +32767
b0 0: Input variation (incremental) is not exceeded.
1: Input variation (incremental) is exceeded.
b1 0: Input variation (decremental) is not exceeded.
1: Input variation (decremental) is exceeded.
b2 0: Output variation (incremental) is not exceeded.
1: Output variation (incremental) is exceeded.
b3 0: Output variation (decremental) is not exceeded.
1: Output variation (decremental) is exceeded.
Set it according to measured value (PV)
fluctuation.
Set maximum value (ULV) of output value (MV).
Set minimum value (LLV) of output value (MV).
-50 to +32717 [%]
Remarks
It cannot be shorter than operation cycle of the PLC.
Operation direction

Do not set b2 and b5 to ON at the same time.


Do not set b2 and b5 to ON at the same time.
Select auto-tuning mode.

When "0" is set, input filter is not provided.

When "0" is set, it is handled as "" (no integration).
When "0" is set, differential gain is not provided.
When "0" is set, differential is not executed.
It is valid when operation setting (ACT) (b1 of (s3)+1) is
"1".
It is valid when operation setting (ACT) (b1 of (s3)+1) is
"1".
It is valid when operation setting (ACT) (b2 of (s3)+1) is
"1" and (ACT) (b5 of (s3)+1) is "0".
It is valid when operation setting (ACT) (b2 of (s3)+1) is
"0" and (ACT) (b5 of (s3)+1) is "1".
It is valid when operation setting (ACT) (b2 of (s3)+1) is
"1" and (ACT) (b5 of (s3)+1) is "0".
It is valid when operation setting (ACT) (b2 of (s3)+1) is
"0" and (ACT) (b5 of (s3)+1) is "1".
It is valid when operation setting (ACT) (b1 or b2 of
(s3)+1) is "1".
The setting below is required when the limit cycle method
is used (when the operation setting (ACT) b6 is set to
ON).