Adjustment Of Real Sensorless Vector Control, Vector Control; Speed Detection Filter And Torque Detection Filter (Pr. 823, Pr. 827, Pr. 833, Pr. 837) - Mitsubishi Electric FR-A700 Instruction Manual

Adjustment of real sensorless vector control, vector control

6.6 Adjustment of real sensorless vector control, vector
control
Purpose
Stabilize speed and feedback sig-
nal
Change the excitation ratio
6.6.1 Speed detection filter and torque detection filter
(Pr. 823, Pr. 827, Pr. 833, Pr. 837)
Set the time constant of the primary delay filter relative to the speed feedback signal and torque
feedback signal. Since this function reduces the speed loop response, use it with the initial
value.
Pr.
Name
No.
Speed detection
823
filter 1
Torque detection
827
filter 1
Speed detection
833
filter 2
Torque detection
837
filter 2
This parameter can be set when the FR-A7AP (option) is mounted.
6 - 144
Parameter that should be Set
Speed detection filter
Torque detection filter
Excitation ratio
Initial
Setting Range Description
Value
0 Without filter
Set the time constant of the primary
0.001s
0.001–0.1s delay filter relative to the speed
feedback signal.
0 Without filter
Set the time constant of the primary
0s
0.001–0.1s delay filter relative to the torque
feedback signal.
Second function of Pr. 823 (valid
0–0.1s
when RT signal is on)
9999
9999 Same as the Pr. 823 setting
Second function of Pr. 827 (valid
0–0.1s
when RT signal is on)
9999
9999 Same as the Pr. 827 setting
Sensorless Sensorless Sensorless Vector Vector Vector
Parameters referred to
Parameter
Refer to
Section
Pr. 823, Pr. 827, 6.6.1
Pr. 833, Pr. 837
Pr. 854 6.6.2
Refer to
Section
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