Pid Control Enhanced Functions - Mitsubishi Electric FR-F820-00046 Instruction Manual

5.11.11 PID control enhanced functions

PID control enhanced functions can be used to perform PID control according to applications.
Pr. Name
1361 Detection time for PID output
A440 hold
1362
PID output hold range
A441
1363
PID priming time
A447
1364
Stirring time during sleep
A448
1365
Stirring interval time
A449
1366
Sleep boost level
A627
1367
Sleep boost waiting time
A628
1368
Output interruption cancel time
A629
111
Check valve deceleration time
F031
1369 Check valve closing completion
A446 frequency
1370 Detection time for PID limiting
A442 operation
1371 PID upper/lower limit pre-
A443 warning level range
1372 PID measured value control set
A444 point change amount
1373 PID measured value control set
A445 point change rate
1374 Auxiliary pressure pump
A450 operation starting level
1375 Auxiliary pressure pump
A451 operation stopping level
1377
PID input pressure selection
A452
1378 PID input pressure warning
A453 level
1379
PID input pressure fault level
A454
1380 PID input pressure warning set
A455 point change amount
1381 PID input pressure fault
A456 operation selection
 PID output hold (Pr.1361 and Pr.1362)
• The manipulated amount (PID output) can be fixed when the fluctuation of the deviation is small. This function eliminates
unnecessary acceleration/deceleration, which is effective to reduce the power consumption.
• When the deviation falls within the Pr.1362 PID output hold range and the elapsed time exceeds the Pr.1361 Detection
time for PID output hold, the manipulated amount (PID output) is fixed at the output frequency at that time.
Initial
Setting range
value
Set the time from when the deviation falls within the PID output hold
5 s 0 to 900 s
range until the PID output is held.
0 to 50% Set the range in which the PID output is held.
9999
9999 The PID output holding is disabled.
Set the time from when the priming operation starts until the main
0 to 360 s
pump starts.
9999
9999 The PID priming pump function is disabled.
15 s 0 to 3600 s Set the stirring time.
0 h 0 to 1000 h Set the interval time for the stirring operation.
Increase the set point before the PID output suspension function is
0 to 100%
activated.
9999
9999 The PID sleep boost function is disabled.
0 s 0 to 360 s Set the waiting time for the sleep boost operation.
Set the time from when the deviation reaches the output interruption
0 s 0 to 360 s
cancel level until the output is started.
0 to 3600 s Set the deceleration time for the check valve deceleration function.
9999
9999 The check valve deceleration function is disabled.
0 to 120Hz Set the frequency at which the check valve deceleration stops.
9999
9999 The check valve deceleration function is disabled.
Set the time from when the measured value reaches the pre-warning
0 s 0 to 900 s
level (P.1371) until the set point change is started.
Set the operation range for the PID upper/lower limit pre-warning
0 to 50%
function.
9999
9999 The PID upper/lower limit pre-warning function is disabled.
Set the set point change amount for the PID upper/lower limit pre-
5% 0 to 50%
warning operation.
Set the set point change rate for the PID upper/lower limit pre-
0% 0 to 100%
warning operation.
1000% 900 to 1100% Set the deviation level for operating the auxiliary pressure pump.
1000% 900 to 1100% Set the deviation level for stopping the auxiliary pressure pump.
1 Terminal 1 pressure input
2 Terminal 2 pressure input
9999
3 Terminal 4 pressure input
9999 The PID input pressure control function is disabled.
20% 0 to 100% Set the input pressure warning level.
0 to 100% Set the input pressure fault level.
9999
9999 The input pressure fault detection is disabled.
Set the set point change amount when the pressure reaches the
5% 0 to 100%
input pressure warning level.
The protective function (E.PID) for the input pressure fault is
0
activated.
0
A deceleration stop is performed when the input pressure fault
1
occurs.
Description
5. PARAMETERS
5.11 (A) Application parameters
1
2
3
4
5
6
7
8
9
10
439