Mitsubishi FR-A800

Control method
PARAMETERS
165
5
Setting 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.
NOTE
• Setting the number of motor poles in Pr.81 changes the Pr.144 Speed setting switchover setting automatically. (Refer to
page 357.)
Selection of control method and control mode
• Select the inverter control method from V/F control, Advanced magnetic flux vector control (speed control), Real sensorless
vector control (speed control, torque control), vector control (speed control, torque control, and position control), and PM
sensorless vector control (speed control, position control).
 The setting values of 100 and above are used when the fast-response operation is selected.
 Advanced magnetic flux vector control if FR-A8AP (option) is not installed.
 The operation for the setting of "10 or 110" is performed when "13, 14, 113, or 114" is set.
 The operation for the setting of "20 or 110" is performed when a value other than "9, 13, 14, 109, 113, or 114" is set.
 The operation for the setting of "20 or 110" is performed when a value other than "13, 14, 113, 114, or 9999" is set.
 The operation for the setting of "20 or 110" is performed when a value other than "9 or 109" is set.
 The operation for the setting of "20 or 110" is performed when a value other than "9999" is set.
 V/F control when Pr.80 or Pr.81 is "9999", regardless of the Pr.800 setting. When Pr.71 is set to the IPM motor MM-CF, PM sensorless vector
control is enabled even if Pr.80"9999" or Pr.81="9999".
 Setting Pr.788 (Pr.747)="0" (low-speed range torque characteristic disabled) selects speed control.
Pr.80
(Pr.453)
,
Pr.81
(Pr.454)
Pr.71
(Pr,450)
Pr.800
setting
value

Pr.451
setting
value

Control method Control mode Remarks
Other
than 9999
Induction
motor
0, 100 
Vector control

Speed control 
1, 101  Torque control 
2, 102 
Speed control/torque
control switchover
MC signal ON: torque control
MC signal OFF: speed control
3, 103  Position control 
4, 104 
Speed control/position
control switchover
MC signal ON: position control
MC signal OFF: speed control
5, 105 
Position control/torque
control switchover
MC signal ON: torque control
MC signal OFF: position control
6, 106 
Torque control (variable-
current limiter control)

9, 109  Vector control test operation
10, 110

Real sensorless vector
control
Speed control 
11, 111 Torque control 
12, 112
Speed control/torque
control switchover
MC signal ON: torque control
MC signal OFF: speed control
20 (initial
value)
20
Advanced magnetic flux
vector control
Speed control 

9999
(initial
value)
Advanced magnetic flux vector control for the second motor
IPM motor
(MM-CF)
9, 109  PM sensorless vector control test operation
13, 113
PM sensorless vector
control
Position control
 
14, 114
Speed control/position
control switchover

MC signal ON: position control
MC signal OFF: speed control
20 (initial
value),
110

20, 110 Speed control 
IPM/SPM
motor
(other
than MM-
CF)
9, 109  PM sensorless vector control test operation
20 (initial
value),
110

20, 110
PM sensorless vector
control
Speed control 
IPM/SPM
motor

9999
(initial
value)
The setting value of Pr.800 is used for the second motor.
(PM sensorless vector control (speed control) when Pr.800="9 or 109")
9999
  V/F control