Mitsubishi Electric 800 Series, Инструкция по эксплуатации, Страница: 191 / 727

Torque control under Real sensorless vector control and vector control
190
PARAMETERS
5.4.4
Torque command

The setting is available when the FR-A8AL is installed.
 Control block diagram
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 page 182 .)
For torque control, the torque command source can be selected.
Pr. Name Initial value Setting range Description
432
D120

Pulse train torque
command bias
0% 0 to 400%
For 0 pulses/s, set the torque to be used during stall
prevention operation.
433
D121

Pulse train torque
command gain
150% 0 to 400%
For 400k pulses/s, set the torque command to be used
during stall prevention operation.
801
H704
Output limit level
9999
0 to 400% Set the torque current limit level.
9999
The torque limit setting value is used for limiting the torque
current level.
803
G210
Constant output range
torque characteristic
selection
0
0, 10
Constant motor output
command
In the torque command setting,
select torque command for the
constant output area.
1, 11
Constant torque
command
2
The torque is constant
unless the output limit of
the torque current is
reached. (The torque
current is limited.)
804
D400 Torque command
source selection
0
0 Torque command based on the analog input to the terminal 1
1
Torque command (-400% to 400%) by the parameter setting
(
Pr.805 or Pr.806 )
2 Torque command given by the pulse train input (FR-A8AL)
3
Torque command via CC-Link communication/CC-Link IE
Field Network communication (FR-A8NC/FR-A8NCE)
Torque command via PROFIBUS-DP communication (FR-
A8NP)
4 12/16-bit digital input (FR-A8AX)
5 Torque command via CC-Link communication/CC-Link IE
Field Network communication (FR-A8NC/FR-A8NCE)
Torque command via PROFIBUS-DP communication (FR-
A8NP)
6
805
D401 Torque command
value (RAM)
1000% 600 to 1400%
Writes the torque command value in RAM. Regards 1000%
as 0%, and set torque command by an offset of 1000%.
806
D402 Torque command
value (RAM, EEPROM)
1000% 600 to 1400%
Writes the torque command value in RAM and EEPROM.
Regards 1000% as 0%, and set torque command by an
offset of 1000%.
1114
D403 Torque command
reverse selection
1
0 Not reversed
Select whether to reverse the
torque command polarity or not
when the reverse rotation
command (STR) is turned ON.
1 Reversed
Sensorless Sensorless Sensorless Sensorless Sensorless Sensorless Sensorless Sensorless Sensorless Vector Vector Vector
+
-
-
Parameter [ Pr. 805, Pr. 806 ]
16-bit digital input
(FR-A8AX)
Speed limit input
Speed control
(proportional control)
Analog input
0
1,3,5,6
4
[ Pr. 804 ] Torque command
source selection
Torque control
+
Motor
Speed
estimated
value
Real sensorless vector control
Vector control
Speed
estimated
value
Speed estimator
Encoder
<Speed limit value
Speed limit value
Pulse train input
(FR-A8AL)
2