Torque Command (Pr. 803 To Pr. 806) - Mitsubishi Electric FR-A760 Series 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
Analog input
Parameter 1,3,5,6
[Pr. 805, Pr. 806]
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%
Initial Setting
Value Range
0
0
1
0
1
3
4
0
5
6
600 to
1000%
1400%
600 to
1000%
1400%
Speed estimated
value
0
4
+
Speed estimated
- value
Real sensorless vector control
100%
Terminal 1
（+10V)
analog input
Torque control by real sensorless vector
Sensorless Sensorless Sensorless Vector Vector Vector
Description
Constant motor output
Select the torque command in the
command
constant power region by torque
command setting.
Constant torque command
Torque command by terminal1 analog input
(Refer to page 285)
Torque command by parameter setting (Pr. 805 or Pr. 806)
(-400% to 400%)
Torque command with using CC-Link
Torque command by
communication (FR-A7NC)
parameter setting
(Pr. 805 or Pr. 806)
Setting from the remote resister can be
(-400% to 400%)
made. (-400% to 400%)
12 bit/16 bit digital input (FR-A7AX)
Torque command by
parameter setting
(Pr. 805 or Pr. 806) with
using communication
Torque command with using CC-Link
other than CC-Link
communication (FR-A7NC)
communication
(-400% to 400%)
Setting from the remote resister can be
made. (-327.68% to 327.67%)
Torque command with
using CC-Link
communication
(-327.68% to 327.67%)
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%.
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%.
Speed limit value
+
-
Speed control
(proportional control)
Speed limit value
Speed estimator
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
to page 285 )
control, vector control
Motor
Torque control
Encoder
4
111