Mitsubishi FR-A740-00023-EC, Instruction Manual

Page: 127 / 474

117
Torque control by real sensorless vector
control, vector control
4
P
ARAME
T
E
R
S
4.5.4 Torque command (Pr. 803 to Pr. 806)
(1) Control block diagram
(2) Torque command ( Pr. 804 = "0" (initial value) ) by analog input (terminal 1)
Torque command source for torque control can be selected.
Parameter
Number
Name
Initial
Value
Setting
Range
Description
803
Constant power range
torque characteristic
selection
0
0
Constant motor output
command
Select the torque command in the
constant power region by torque
command setting.
1 Constant torque command
804
Torque command
source selection
0
0
Torque command by terminal1 analog input
(Refer to page 288)
1
Torque command by parameter setting (
Pr. 805
or
Pr. 806
)
(-400% to 400%)
3
Torque command by
parameter setting
( Pr. 805 or Pr. 806 )
(-400% to 400%)
Torque command with using CC-Link
communication (FR-A7NC)
Setting from the remote resister can be
made. (-400% to 400%)
4 12 bit/16 bit digital input (FR-A7AX)
5
Torque command by
parameter setting
(
Pr. 805
or
Pr. 806
) with
using communication
other than CC-Link
communication
(-400% to 400%)
Torque command with using CC-Link
communication (FR-A7NC)
Setting from the remote resister can be
made. (-327.68% to 327.67%)
6
Torque command with using CC-Link
communication (FR-A7NC)
(-327.68% to 327.67%)
805
Torque command
value (RAM)
1000%
600 to
1400%
Writes the torque command value to the RAM.
On the assumption that 1000% is 0%, the torque command is set by
an offset from 1000%.
806
Torque command
value
(RAM,EEPROM)
1000%
600 to
1400%
Writes the torque command value to the RAM and EEPROM.
On the assumption that 1000% is 0%, the torque command is set by
an offset from 1000%.
⋅
Torque command is given by voltage (current) input to
terminal 1.
⋅
When torque command is input from terminal 1, set "4 or
3" in
Pr. 868 Terminal 1 function assignment .
⋅
Torque command by analog input can be calibrated using
calibration parameter C16 (Pr. 919) to C19 (Pr. 920) . (Refer
to page 288 )
Sensorless Sensorless Sensorless Vector Vector Vector
+
-
-
Parameter
(Pr. 805, Pr. 806)
16 bit digital input
(FR-A7AX)
Speed limit input
Analog input
0
1,3,5,6
4
Pr. 804 Torque command
source selection
Torque control
+
Motor
Real sensorless vector control
Vector control
Speed estimator
Encoder
Speed control
(proportional control)
Speed limit value
Speed estimated
value
Speed limit value
Speed estimated
value
Torque command
150%
-100%
(-10V)
0 100%
（ +10V)
-150%
Terminal 1
analog input