Mitsubishi Electric FR-F800 Series Instruction Manual page 451

NOTE
• The second PID pre-charge function is valid also when the first pre-charge function is set to invalid and the second pre-charge
function is set.
• When "10" (second function enabled only during constant-speed operation) is set to Pr.155, the second PID function is not
selected even if the RT signal turns ON.
5.11.10 Multi-pump function (Advanced PID function)
PID control function can adjust the volume of water, etc. by controlling pumps. When the motor output is insufficient, auxiliary
motors can be driven by the commercial power supply. Up to three auxiliary motors can be connected.
Pr.
578 Auxiliary motor operation
A400 selection
579 Motor connection function
A401 selection
580
MC switchover interlock time
A402
581
Start waiting time
A403
582 Auxiliary motor connection-time
A404 deceleration time
583 Auxiliary motor disconnection-
A405 time acceleration time
584 Auxiliary motor 1 starting
A406 frequency
585 Auxiliary motor 2 starting
A407 frequency
586 Auxiliary motor 3 starting
A408 frequency
587 Auxiliary motor 1 stopping
A409 frequency
588 Auxiliary motor 2 stopping
A410 frequency
589 Auxiliary motor 3 stopping
A411 frequency
590 Auxiliary motor start detection
A412 time
591 Auxiliary motor stop detection
A413 time
1370 Detection time for PID limiting
A442 operation
1376
Auxiliary motor stopping level
A414
• Refer to
• When using the sleep function, refer to
450
5. PARAMETERS
5.11 (A) Application parameters
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Initial value
Name
FM
0
0
1 s
1 s
1 s
1 s
60 Hz
60 Hz
60 Hz
0 Hz
0 Hz
0 Hz
5 s
5 s
0 s
9999
page 419 to set PID control.
page 430
search engine
Setting range
CA
0 No auxiliary motor operation
1 to 3 Set the number of auxiliary motors to be run.
0 Basic system
1 Alternative system
2 Direct system
3 Alternative direct system
0 to 100 s Set the MC switchover interlock time.
Set the time from when the MC is switched until it
0 to 100 s starts. Set this time a little longer than the MC
switching time.
Used to decrease the output frequency of the
inverter when a motor connection occurs. Set the
0 to 3600 s
deceleration time for decreasing the output
frequency.
The output frequency is not decreased when a motor
9999
connection occurs.
Used to increase the output frequency of the inverter
when a motor connection occurs. Set the
0 to 3600 s
acceleration time for increasing the output
frequency.
The output frequency is not increased when a motor
9999
connection occurs.
50 Hz 0 to 590 Hz
50 Hz 0 to 590 Hz Set the frequency to start the auxiliary motor.
50 Hz 0 to 590 Hz
0 to 590 Hz
0 to 590 Hz Set the frequency to stop the auxiliary motor.
0 to 590 Hz
0 to 3600 s Set the delay time until the auxiliary motor is started.
Set the delay time until the auxiliary motor is
0 to 3600 s
stopped.
Set the time until the auxiliary motor is stopped when
0 to 900 s
the PID overpressure control function is used.
Set the level for stopping the auxiliary motor by the
0% to 100%
PID overpressure control function.
9999 The PID overpressure control function is disabled.
to set the function.
Description