Torque Command - Mitsubishi Electric FR-A800 Series Instruction Manual

5.4.4
Sensorless Sensorless Sensorless Vector Vector Vector
For torque control selection, the torque command source can be selected.
Pr.
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
Parameter [Pr. 805, Pr. 806]
16-bit digital input
Pulse train input
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
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Torque command
Initial
Name
value
0%
150%
9999
0
0
1000%
1000%
1
[Pr. 804] Torque command
source selection
0
Analog input
1,3,5,6
4
(FR-A8AX)
2
(FR-A8AL)
Speed limit input
search engine
Setting range
For 0 pulses/s, set the torque to be used during stall prevention
0 to 400%
operation.
For 400k pulses/s, set the torque command to be used during stall
0 to 400%
prevention operation.
0 to 400% Set the torque current limit level.
9999 The torque limit setting value is used for limiting the torque current level.
0, 10 Constant motor output command
1, 11 Constant torque command
The torque is constant unless the
output limit of the torque current is
2
reached. (The torque current is
limited.)
0 Torque command given by analog input via terminal 1
Torque command (-400% to 400%) given by the parameter setting
1
(Pr.805 or Pr.806)
2 Torque command given by the pulse train input (FR-A8AL)
Torque command through the CC-Link / CC-Link IE Field Network / CC-
Link IE TSN communication (FR-A8NC, FR-A8NCE, FR-A800-GF, FR-
3 A8NCG, FR-A800-GN)
Torque command given through PROFIBUS-DP communication (FR-
A8NP)
4 12/16-bit digital input (FR-A8AX)
5 Torque command through the CC-Link / CC-Link IE Field Network / CC-
Link IE TSN communication (FR-A8NC, FR-A8NCE, FR-A800-GF, FR-
A8NCG, FR-A800-GN)
6
Torque command given through PROFIBUS-DP communication (FR-
A8NP)
Writes the torque command value in RAM. Regards 1000% as 0%, and
600 to 1400%
set torque command by an offset of 1000%.
Writes the torque command value in RAM and EEPROM. Regards
600 to 1400%
1000% as 0%, and set torque command by an offset of 1000%.
0 Not reversed
1 Reversed
Speed
estimated <Speed limit value
value
+ Speed control
(proportional control)
Speed
estimated Speed limit value
-
value
Real sensorless vector control
Vector control
page 272.)
5.4 Torque control under Real sensorless vector control and Vector control
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
5. PARAMETERS
1
2
3
4
5
6
7
8
9
10
M
Encoder
283