Torque Control; Block Diagram - Mitsubishi Electric FR-A820-00046 Instruction Manual

Torque control under Real sensorless vector control and vector control

Block diagram

Terminal 1
[Pr. 868 = 3, 4]
Parameter
[Pr. 805, Pr. 806]
CC-Link/PROFIBUS-DP
(FR-A8NC/FR-A8NCE/FR-A8NP)
16 bit digital input
(FR-A8AX)
Actual speed or estimated speed
< Speed limit value
Actual speed or estimated speed
Speed limit value
+
A
Speed
-
limit value
Fig. 5-37: Block diagram
5 - 130
Terminal 1 bias [C16, C17 (Pr. 919)]
Terminal 1 gain [C18, C19 (Pr. 920)]
RT
[Pr. 826 ≠ 9999]
Torque
setting
filter
[Pr. 826 = 9999]
[Pr. 836 ≠ 9999]
RT
[Pr. 836 = 9999]
+
-
Speed control
(proportional
control)
Vector control
Motor Encoder
[Pr. 800 = 1]
Real sensorless
vector control
[Pr. 800 = 11]
Torque command
source selection
[Pr. 826]
[Pr. 74]
[Pr. 836]
[Pr. 74]
RT

Torque control

P gain 1
[Pr. 824]
Torque control
P gain 1
[Pr. 825]
Torque control
RT
P gain 2
[Pr. 834]
Torque control
integral time 2
[Pr. 835]
Torque detection filter
RT
[Pr. 827]
RT
[Pr. 837]
Speed detection filter
Speed
estimation
Constant power range
torque characteristic selection
[Pr. 803]
[Pr. 804]
+
Motor
+
+
+
RT
[Pr. 823]
RT
[Pr. 833]
Parameters
Encoder
I002528E