Torque Command (Pr. 803 To Pr. 806) - Mitsubishi Electric FR-A740-00023 Instruction Manual

4.5.4

Torque command (Pr. 803 to Pr. 806)

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