Mitsubishi Electric FR-A820-00046 Instruction Manual page 268

Speed control under Real sensorless vector control, vector control, PM sensorless vector control
● The torque limit using analog input can be corrected with Calibration parameters C16 (Pr. 919) to
C19 (Pr. 920), and C38 (Pr. 932) to C41 (Pr. 933). (Refer to page 5-409.)
Bias
C16 (Pr. 919)
Fig. 5-16:
NOTE When inputting an analog signal to the terminal 1, input a positive voltage (0 V to +10 V (+5 V)).
When a negative voltage (0 V to -10 V (-5 V)) is input, the torque limit value set by the analog signal
becomes "0".
5 - 88
400
150
Initial value
0
Torque setting signal
0
0
C19 (Pr. 920)
C17 (Pr. 919)
Calibration example of terminal 1
Correction of the torque limit input with calibration parameters
Gain
C18 (Pr. 920)
Bias
C38 (Pr. 932)
100 %
5 V
10 V
400
150
Initial value
0 20
0 4
Torque setting signal
C39 (Pr. 932)
Calibration example of terminal 4
Parameters
Gain
C40 (Pr. 933)
100%
20 mA
20mA
C41 (Pr. 933)
I002508E, I002509E