Mitsubishi Electric FR-A820-00046 Instruction Manual page 266

Speed control under Real sensorless vector control, vector control, PM sensorless vector control
Block diagram of torque limit
command
Fig. 5-13:
Selecting the torque limit input method (Pr. 810)
Use Pr. 810 "Torque limit input method selection" to select which method to use to limit the output
torque during speed control.
Pr. 810 setting
0 (Initial value)
Tab. 5-28:
5 - 86
Vector control
Speed control
Speed
Torque limit block diagram
Torque limit input
method
Internal torque limit 1
1 External torque limit
2 Internal torque limit 2
Torque limit input
Torque limit
Operation
Perform the torque limit operation using the parameter (Pr. 22, Pr. 812
to Pr. 814) settings.
If changing the torque limit parameters via communication is enabled,
the torque limit input can be performed via communication.
Torque limit using analog voltage (current) to terminal 1 or terminal 4 is
valid.
The torque limit by communication option (FR-A8NC/FR-A8NCE) is
enabled.
Parameters
Iq current control
IM
Encoder
I001501E