Torque Command (Pr. 803 To Pr. 806) - Mitsubishi Electric FR-A720-00030-NA Instruction Manual

Torque control by Real sensorless
vector control, vector control
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)
* This parameter allows its setting to be changed during the operation in any operation mode even if "0 (initial value) or 1" is set in Pr. 77 Parameter
write selection.
(1) Control block diagram
[Pr. 804] Torque command
Analog input
Parameter [Pr. 805, Pr. 806]
16 bit digital input (FR-A7AX)
Pulse train input (FR-A7AL)
(2) Torque command (Pr. 804 = "0" (initial value)) by analog input (terminal 1)
Torque command
150%
-100%
0
(-10V)
-150%
124
Initial Setting
Value Range
0
0
1
0
1
2
3
0
4
5
6
600 to
1000%
1400%
600 to
1000%
1400%
Speed estimated
source selection
value
0
1,3,5,6
4
2
+
Speed limit input
Speed estimated
value
-
Real sensorless vector control
100%
Terminal 1
(+10V)
analog input
Sensorless Sensorless Sensorless
Vector Vector Vector
Description
Constant motor output
Select the torque command in the
command
constant power region by torque
Constant torque
command setting.
command
Torque command input
Torque command by terminal1 analog input
(Refer to page 305)
Torque command by parameter setting (Pr. 805 or
Pr. 806) (-400% to 400%)
Torque command by pulse train input
(FR-A7AL)
Torque command with
Torque command by using CC-Link
parameter setting communication
(Pr. 805 or Pr. 806) Setting from the remote
(-400% to 400%) resister can be made.
(-400% to 400%)
12 bit/16 bit digital input (FR-A7AX)
Torque command with
using CC-Link
Torque command by communication
parameter setting Setting from the remote
(Pr. 805 or Pr. 806) resister can be made.
(-400% to 400%) (-327.68% to 327.67%)
(Set from 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 "3 or
4" 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 305 )
Speed limit
input method
As set in Pr. 807.
The Pr. 808 and
Pr. 809 settings
are speed limit
regardless of the
Pr. 807 setting.
As set in Pr. 807.
The Pr. 808 and
Pr. 809 settings
are speed limit
regardless of the
Pr. 807 setting.
— As set in Pr. 807.
+
Torque control
-
Motor
Encoder