Change The Control Method (Pr. 80, Pr. 81, Pr. 451, Pr. 800) - Mitsubishi Electric FR-A720-0.4K Instruction Manual

4.3.2

Change the control method (Pr. 80, Pr. 81, Pr. 451, Pr. 800)

Set when selecting the advanced magnetic flux vector control, real sensorless vector control or vector control.
Select a control mode from speed control mode, torque control mode and position control mode under real
sensorless vector control or vector control. The initial value is V/F control.
Select a control method using Pr. 800 (Pr. 451) Control method selection .
Each control method can be switched using a method switching signal (MC).
Parameter
Name
Number
80 Motor capacity
81 Number of motor poles
Control method
800
selection
Second motor control
451
method selection
(1) Setting of the motor capacity and the number of motor poles (Pr. 80, Pr. 81 )
⋅ Motor specifications(the motor capacity and the number of motor poles) must be set to select advanced magnetic
flux vector control, real sensorless vector control or vector control.
⋅ Set the motor capacity (kW) in Pr. 80 Motor capacity and set the number of motor poles in Pr. 81 Number of motor
poles.
REMARKS
⋅ Setting number of motor poles in Pr. 81 changes the Pr. 144 Speed setting switchover setting automatically. (Refer to page 242.)
(2) Selection of control method and control mode
⋅ Select the inverter control method for V/F control, advanced magnetic flux vector control (speed control), real
sensorless vector control (speed control, torque control) and vector control (speed control, torque control, and
position control).
Pr. 80,
Pr. 800 Pr. 451
Pr. 81
Setting Setting
Setting
⎯
0
⎯
1
⎯
2
⎯
3
⎯
4
⎯
5
Other
⎯
9
than
9999
10
11
12
20
(Pr. 800 initial value)
9999
(Pr. 451
⎯
initial
value)
⎯ *
9999
* Control method is V/F control regardless of the setting value of Pr. 800 when "9999" is set in Pr. 80 Motor capacity or Pr. 81 Number of motor poles.
Initial
Setting Range
Value
55K or less
9999 75K or more
9999
2, 4, 6, 8, 10
9999 12, 14, 16, 18, 20
9999
0 to 5
9
20
10, 11, 12
20
10, 11, 12
9999
20, 9999
Control Method
Speed control
Torque control
Speed control-torque control
switchover
Vector control
Position control
Speed control-position
control switchover
Position control-torque
control switchover
Speed control
Real sensorless vector Torque control
control
Speed control-torque control
switchover
Advanced magnetic flux
Speed control
vector control
V/F control, advanced magnetic flux vector control
0.4 to 55kW
Set the applied motor capacity.
0 to 3600kW
V/F control
Set the number of motor poles.
X18 signal-ON:V/F control
V/F control
Vector control
Vector control test operation
Real sensorless vector control
V/F control (advanced magnetic flux vector control)
Real sensorless vector control
V/F control (advanced magnetic flux vector control)
Control Mode
Vector control test operation
V/F control
Control mode
Description
Set 10 + number
of motor poles
Remarks
⎯
⎯
MC ON: Torque control
MC OFF: Speed control
⎯
MC ON: Position control
MC OFF: Speed control
MC ON: Torque control
MC OFF: Position control
⎯
⎯
MC ON: Torque control
MC OFF: Speed control
⎯
4
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