Mitsubishi Electric FR-A800, Instruction Manual

Page: 268 / 1042

Speed control under Real sensorless vector control, vector control, PM sensorless vector control Parameters
5 - 88
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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.)
I002508E, I002509E
Fig. 5-16: Correction of the torque limit input with calibration parameters
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".
400
150
0
0
0
400
150
0 100%
0 20mA
20
4
Initial value
Gain
C18 (Pr. 920)
100 %
5 V
10 V
C19 (Pr. 920)
Torque setting signal
C17 (Pr. 919)
Calibration example of terminal 1
Bias
C16 (Pr. 919)
To
rq
u
e
(
%
)
Gain
C40 (Pr. 933)
Initial value
Torque setting signal
C39 (Pr. 932)
C41 (Pr. 933)
Calibration example of terminal 4
Bias
C38 (Pr. 932)
To
rq
u
e
(
%
)
20 mA