Advanced Pid Function (Pump Function) (Pr. 554, Pr. 575 To Pr. 591) - Mitsubishi Electric FR-F740 EC Instruction Manual

Parameter
6.19.5

Advanced PID function (pump function) (Pr. 554, 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.
Pr. No. Name
PID signal operation
554
selection
Output interruption
575
detection time
Output interruption
576
detection level
Output interruption
577
release level
Auxiliary motor
578
operation selection
Motor connection
579
function selection
MC switching
580
interlock time
581
Start waiting time
Auxiliary motor
582
connection-time
deceleration time
Auxiliary motor
583
disconnection-time
acceleration time
Auxiliary motor 1
584
starting frequency
Auxiliary motor 2
585
starting frequency
Auxiliary motor 3
586
starting frequency
Auxiliary motor 1
587
stopping frequency
Auxiliary motor 2
588
stopping frequency
Auxiliary motor 3
589
stopping frequency
Auxiliary motor start
590
detection time
Auxiliary motor stop
591
detection time
The above parameters can be set when Pr. 160 = 0.
Depends on the Pr. 21 "Acceleration/deceleration time" increments setting. The initial value
for the setting range is "0 to 3600s" and the setting increments is "0.1s".
FR-F700 EC
Initial Setting
Description
Value Range
Select the operation to be performed at the
detection of upper, lower, and deviation limit
0–3,
0 for the measured value input. The operation
10–13
for PID output suspension function can be
selected.
If the output frequency after PID operation
remains lower than the Pr. 576 setting for
0–3600s
longer than the time set in Pr. 575, the
1s
inverter stops operation.
9999 Without output interruption function
Set the frequency at which the output inter-
0Hz 0–400Hz
ruption processing is performed.
Level at PID output interruption function is
900–
1000%
canceled. Set (Pr. 577 − 1000%)
1100%
0 No auxiliary motor operation
0
1–3 Set the number of auxiliary motors to be run
0 Basic system
1 Alternative system
0
2 Direct system
3 Alternative-direct system
You can set the time until MC switchover
1s 0–100s
interlock time when Pr. 579 = 2 or 3 is set.
You can set the time from when the MC is
switched until it starts when Pr. 579 = 2 or 3.
1s 0–100s
Set this time a little longer than the MC
switching time.
You can set the deceleration time for
0–3600/ decreasing the output frequency of the
inverter if a motor connection occurs under
360s
1s
advanced PID control.
9999 The output frequency is not forcibly changed.
You can set the acceleration time for increas-
0–3600/ ing the output frequency of the inverter if a
360s motor disconnection occurs under advanced
1s
PID control.
9999 The output frequency is not forcibly changed.
50Hz 0–400Hz
Set the frequency to connect an
50Hz 0–400Hz
auxiliary motor.
50Hz 0–400Hz
0Hz 0–400Hz
0Hz 0–400Hz Set the frequency to open an auxiliary motor.
0Hz 0–400Hz
You can set the delay time until the auxiliary
5s 0–3600s
motor is started.
You can set the delay time until the auxiliary
5s 0–3600s
motor is stopped.
PID control
Parameters referred to
20 Acceleration/
deceleration
reference
frequency
21 Acceleration/
deceleration time
increments
127–134 PID control
C42–C45
178–189 Input terminal func-
tion selection
190–196 Output terminal
function selection
Refer to
Section
6.6.1
6.6.1
6.19.1
6.9.1
6.9.5
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