Filter
Top Products
176
Control system functions (Pr. 818 to Pr. 837)
3.32.5 Speed detection filter function (Pr. 823, Pr. 833 )
3.32.6 Current loop proportional gain setting for vector control
(Pr. 824, Pr. 834 )
3.32.7 Current control integral time setting for vector control
(Pr. 825, Pr. 835 )
3.32.8 Torque setting filter function (Pr. 826, Pr. 836 )
z Set the time constant of the primary delay filter relative to the speed feedback signal.
Since this function reduces the speed loop response, use it with the factory setting.
Set the time constant when speed ripples occur due to harmonic disturbance.
Note that a too large value will run the motor unstably.
Parameter Name Factory Setting Setting Range Remarks
823 Speed detection filter 1 (when RT signal is off) 0.001s 0 to 0.1s 0: without filter
Extended
mode
833 Speed detection filter 2 (when RT signal is on) 9999
0 to 0.1s
, 9999
9999: same
as the Pr. 823
setting
REMARKS
When speed ripples are large, setting this parameter Pr. 823 or Pr. 833 ensures stability.
z Set the current loop proportional gain for vector control.
Increasing the gain enhances the torque response level, but a too large gain will cause instability,
generating harmonic torque pulsation.
z Pr. 824 "torque control P gain 1" and Pr. 834 "torque control P gain 2" are 0 to 200% in the setting range and
100% in the factory setting.
For general adjustment, set them within the range 50 to 200%.
Parameter Name Factory Setting Setting Range Remarks
824 Torque control P gain 1 (when RT signal is off)
100
% 0 to 200%
Extended mode
834 Torque control P gain 2 (when RT signal is on) 9999
0 to 200
%, 9999
REMARKS
The factory setting ensures fully stable operation.
For general adjustment, make setting within the range 50 to 200% as a guideline.
z Set the current loop integral compensation time for vector control.
z A small value enhances the torque response level, but a too small value will cause current fluctuation.
Parameter Name Factory Setting Setting Range Remarks
825 Torque control integral time 1 (when RT signal is off) 5ms 0 to 500ms
Extended mode
835 Torque control integral time 2 (when RT signal is on) 9999
0 to 500ms
, 9999
REMARKS
The factory setting ensures fully stable operation.
z Set the time constant of the primary delay filter relative to the external torque command (analog input
command).
Set a large time constant value when you want to delay the tracking of the torque command, the analog
input voltage fluctuates, etc.
Parameter Name Factory Setting Setting Range Remarks
826 Torque setting filter 1 (when RT signal is off) 0s (without filter) 0 to 5s
Extended mode
836 Torque setting filter 2 (when RT signal is on) 9999
0 to 5s
, 9999
speed torque position
speed torque position
speed torque position
speed torque position