Setting Procedure Of Vector Control (Speed Control) - Mitsubishi Electric FR-A720-0.4K Instruction Manual

4.4.2

Setting procedure of vector control (speed control)

Perform secure wiring. (Refer to page 38.)
Set the motor and encoder. (Pr. 71, Pr. 359, Pr. 369)
Set the motor capacity and the number of motor poles
Select a control method. (Refer to page 91.)
Set the run command. (Refer to page 298.)
As required
· Perform offline auto tuning. (Pr. 96) (refer to page 182).
· Select online auto tuning. (Pr. 95) (refer to page 192).
· Easy gain tuning (refer to page 103)
· Manual input speed control gain adjustment (refer to page 106)
CAUTION
⋅ Speed command setting range is 0 to 120Hz for vector control.
⋅ The carrier frequencies are selectable from among 2k, 6k, 10k, 14kHz for vector control.
(2k and 6kHz for the 75K or more)
Mount the FR-A7AP.
Set Pr. 71 Applied motor, Pr. 359 Encoder rotation direction and Pr. 369
Number of encoder pulses according to the motor and encoder used.
(Refer to page 40.)
(Pr. 80, Pr. 81) (Refer to page 91.)
Set the motor capacity (kW) in Pr. 80 Motor capacity and set the number
of motor poles (number of poles) in Pr. 81 Number of motor poles. (V/F
control is performed when the setting is "9999" (initial value).)
Make speed control valid by selecting "0" (speed control), "2" (speed-
torque switchover), or "4" (speed-position switchover) for Pr. 800.
Select the start command and speed command.
(1) Start command
1)Operation panel: Setting by pressing
operation panel
2)External command: Setting by forward rotation or reverse
rotation command (terminal STF or STR)
(2)Speed command
1)Operation panel: Setting by pressing
2)External analog command (terminal 2 or 4) :
Give a speed command using the analog signal input to
terminal 2 (or terminal 4).
3)Multi-speed command:
The external signals (RH, RM, RL) may also be used to give
speed command.
Set the torque limit. (Pr. 810)
(Refer to page 98.)
Test run
Speed control by real sensorless vector
control, vector control
Vector Vector Vector
/ of the
of the operation panel
97
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