Torque Command - Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual

5.4.4

Torque command

Sensorless Sensorless Sensorless Vector Vector Vector
For torque control selection, the torque command source can be selected.
Pr. Name
432
Pulse train torque
*1
command bias
D120
433
Pulse train torque
*1
command gain
D121
801
Output limit level
H704
Constant output range
803
torque characteristic
G210
selection
804 Torque command
D400 source selection
805 Torque command value
D401 (RAM)
806 Torque command value
D402 (RAM, EEPROM)
1114 Torque command
D403 reverse selection
*1 The setting is available when the FR-A8AL is installed.
 Control block diagram
Analog input
Parameter [Pr. 805, Pr. 806]
16-bit digital input
(FR-A8AX)
Pulse train input
(FR-A8AL)
NOTE
• When the torque command exceeding the torque limit value (Pr.22, Pr.810, Pr.812 to Pr.817) is given, the output torque is
within the torque limit value. (Refer to
270
5. PARAMETERS
5.4 Torque control under Real sensorless vector control and Vector control
Initial
Setting range
value
0% 0 to 400%
150% 0 to 400%
0 to 400%
9999
9999
0, 10
1, 11
0
2
0
1
2
3
0
4
5
6
1000% 600 to 1400%
1000% 600 to 1400%
0
1
1
[Pr. 804] Torque command
source selection
0
1,3,5,6
4
2
+
Speed limit input
-
page
For 0 pulses/s, set the torque to be used during stall prevention
operation.
For 400k pulses/s, set the torque command to be used during stall
prevention operation.
Set the torque current limit level.
The torque limit setting value is used for limiting the torque current level.
Constant motor output command
Constant torque command
The torque is constant unless the
output limit of the torque current is
reached. (The torque current is
limited.)
Torque command given by analog input via terminal 1
Torque command (-400% to 400%) given by the parameter setting
(Pr.805 or Pr.806)
Torque command given by the pulse train input (FR-A8AL)
Torque limit through the CC-Link/CC-Link IE Field Network
communication (FR-A8NC, FR-A8NCE, FR-A800-GF)
Torque command given through PROFIBUS-DP communication (FR-
A8NP)
12/16-bit digital input (FR-A8AX)
Torque limit through the CC-Link/CC-Link IE Field Network
communication (FR-A8NC, FR-A8NCE, FR-A800-GF)
Torque command given through PROFIBUS-DP communication (FR-
A8NP)
Writes the torque command value in RAM. Regards 1000% as 0%, and
set torque command by an offset of 1000%.
Writes the torque command value in RAM and EEPROM Regards
1000% as 0%, and set torque command by an offset of 1000%.
Not reversed
Reversed
Speed
estimated <Speed limit value
value
Speed control
(proportional control)
Speed
Speed limit value
estimated
value
Real sensorless vector control
Vector control
263.)
Description
In the torque command setting,
select torque command for the
constant output area .
Select whether to reverse the
torque command polarity or not
when the reverse rotation
command (STR) is turned ON.
+
Torque control
-
Speed estimator
Motor
Encoder