Torque Command (Pr. 803 To Pr. 806) - Mitsubishi Electric FR-A720-0.4K 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)
<Control block diagram>
Pr.804 Torque command
source selection
0
Analog input
1,3,5,6
Parameter
(Pr.805, Pr.806)
4
16 bit digital input
(FR-A7AX)
Speed limit input
(1) 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
0 Constant motor output limit
0
1 Constant torque limit
Torque command by terminal1 analog input
0
(Refer to page 285)
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)
5
Torque command by
parameter setting
(Pr. 805 or Pr. 806)
(-400% to 400%)
6
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
+
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 285 )
+10V)
analog input
Torque control by real sensorless vector control
Vector Vector Vector
Description
Select the torque limit in the constant
power region by torque limit setting.
Torque command by CC-Link
communication (FR-A7NC)
Setting from the remote resister can be
made. (-400% to 400%)
Torque command by CC-Link
communication (FR-A7NC)
Setting from the remote resister can be
made. (-327.68% to 327.67%)
Torque command by CC-Link
communication (FR-A7NC)
(-327.68% to 327.67%)
+
Torque control
-
Speed control
(proportional control)
Speed estimator
Pr.800
page 91
Pr.807
page 123
Motor
Encoder
4
121