Advanced Pid Function (Pump Function) (Pr. 575 To Pr. 591) - Mitsubishi Electric FR-F740-00023-EC Instruction Manual

3.19.3 Advanced PID function (pump function) (Pr. 575 to Pr. 591)

PID control function can adjust the volume of water, etc. by controlling a pump. Multiple motors (4 motors
maximum) can be controlled by switching between the inverter-driven operation and commercial power-
driven operation.Use Pr. 579 Motor connection function selection to select switchover operation of the motor. Up
to three auxiliary motors can be connected.
Parameter
Number
Output interruption detection
575
time
Output interruption detection
576
level
577 Output interruption release level
578 Auxiliary motor operation selection
Motor connection function
579
selection
580 MC switching interlock time
581 Start waiting time
Auxiliary motor connection-time
582
deceleration time
Auxiliary motor disconnection-
583
time acceleration time
584 Auxiliary motor 1 starting frequency
585 Auxiliary motor 2 starting frequency
586 Auxiliary motor 3 starting frequency
587 Auxiliary motor 1 stopping frequency
588 Auxiliary motor 2 stopping frequency
589 Auxiliary motor 3 stopping frequency
590 Auxiliary motor start detection time
591 Auxiliary motor stop detection time
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 146)
Initial
Name
Value
1s
0Hz
1000%
0
0
1s
1s
1s
1s
50Hz
50Hz
50Hz
0Hz
0Hz
0Hz
5s
5s
Special operation and frequency control
Setting Range
If the output frequency after PID
operation remains lower than the Pr. 576
0 to 3600s
setting for longer than the time set in Pr.
575, the inverter stops operation.
9999 Without output interruption function
Set the frequency at which the output
0 to 400Hz
interruption processing is performed.
Level at PID output interruption function
900 to 1100% is canceled
Set (Pr. 577 − 1000%)
0 No auxiliary motor operation
Set the number of auxiliary motors to be
1 to 3
run
0 Basic system
1 Alternative system
2 Direct system
3 Alternative-direct system
You can set the time until MC
0 to 100s switchover interlock time when Pr. 579 =
"2, 3" is set.
You can set the time from when the MC
is switched until it starts when Pr. 579 =
0 to 100s
"2, 3". Set this time a little longer than
the MC switching time.
You can set the deceleration time for
decreasing the output frequency of the
0 to 3600s
inverter if a motor connection occurs
under advanced PID control.
The output frequency is not forcibly
9999
changed.
You can set the acceleration time for
increasing the output frequency of the
0 to 3600s
inverter if a motor disconnection occurs
under advanced PID control.
The output frequency is not forcibly
9999
changed.
0 to 400Hz
Set the frequency to connect an
0 to 400Hz
auxiliary motor.
0 to 400Hz
0 to 400Hz
Set the frequency to open an auxiliary
0 to 400Hz
motor.
0 to 400Hz
You can set the delay time until the
0 to 3600s
auxiliary motor is started.
You can set the delay time until the
0 to 3600s
auxiliary motor is stopped.
Description
203
Pr.573
page 140
Pr.592
page 212
3