Mitsubishi Electric MELSEC iQ-F FX5 - Parameter

35 CPU MODULE BUILT-IN ANALOG FUNCTION
35.5 Function (PID Control Via Instruction)
599
35
Parameter
Set item Description/Setting range Remarks
(s3) Sampling time (TS) 1 to 32767 (ms) It cannot be shorter than operation cycle of the PLC.
(s3)+1 Operation setting
(ACT)
b0 0: Forward operation
1: Backward operation
Operation direction
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
Do not set b2 and b5 to ON at the same time.
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
Do not set b2 and b5 to ON at the same time.
b6 0: Step response method
1: Limit cycle method
Select auto-tuning mode.
b7
*2
0: Overshoot suppression processing invalid (FX3U
compatible)
1: Overshoot suppression processing valid
When b7 is ON, the overshoot suppression
processing is performed.
b8
*2
0: Without the hunting suppression processing
(FX3U compatible)
1: With the hunting suppression processing
This is valid when b4 is ON and b6 is OFF.
When b8 is ON, the hunting suppression processing
is performed.
b9 to b15 Not used 
(s3)+2 Input filter constant () 0 to 99[%] When "0" is set, input filter is not provided.
(s3)+3 Proportional gain (KP) 1 to 32767[%] 
(s3)+4 Integral time (TI) 0 to 32767[100ms] When "0" is set, it is handled as "" (no integration).
(s3)+5 Differential gain (KD) 0 to 100[%] When "0" is set, differential gain is not provided.
(s3)+6 Differential time (TD) 0 to 32767[10ms] When "0" is set, differential is not executed.
(s3)+7 to

(s3)+19
These devices are occupied for internal processing of PID operation. Do not change data.
(s3)+20
*1
Input variation (incremental)
alarm set value
0 to 32767 It is valid when b1 of the operation setting (ACT)
((s3)+1) is "1".
(s3)+21
*1
Input variation (decremental)
alarm set value
0 to 32767 It is valid when b1 of the operation setting (ACT)
((s3)+1) is "1".
(s3)+22
*1
Output variation (incremental)
alarm set value
0 to 32767 It is valid when b2 and b5 of the operation setting
(ACT) ((s3)+1) are "1" and "0".
Output upper limit set value -32768 to +32767 It is valid when b2 and b5 of the operation setting
(ACT) ((s3)+1) are "0" and "1".
(s3)+23
*1
Output variation (decremental)
alarm set value
0 to 32767 It is valid when b2 and b5 of the operation setting
(ACT) ((s3)+1) are "1" and "0".
Output lower limit set value -32768 to +32767 It is valid when b2 and b5 of the operation setting
(ACT) ((s3)+1) are "0" and "1".
(s3)+24
*1
Alarm output b0 0: Input variation (incremental) is not exceeded.
1: Input variation (incremental) is exceeded.
It is valid when b1 and b2 of the operation setting
(ACT) ((s3)+1) are "1".
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.
■The following setting is required when using the limit cycle method (b6 of the operation setting (ACT) ((s3)+1) is "1").
(s3)+25 PV value threshold (hysteresis)
width (SHPV)
Set it according to measured value (PV) fluctuation. The setting below is required when the limit cycle
method is used
(when the operation setting (ACT) b6 is set to ON).
(s3)+26 Output value upper limit (ULV) Set maximum value (ULV) of output value (MV).
(s3)+27 Output value lower limit (LLV) Set minimum value (LLV) of output value (MV).
(s3)+28 Wait setting from end of tuning
cycle to start of PID control (KW)
-50 to +32717[%]