Mitsubishi Electric FR-A700 Instruction Manual page 128

Parameter
Name
Speed control
821
integral time 1
Speed control
831
integral time 2
822
Refer to Pr. 74.
—
Speed detection
823
filter 1
Speed detection
833
filter 2
Torque control P
824
gain 1
Torque control P
834
gain 2
Torque control
825
integral time 1
Torque control
835
integral time 2
826
Refer to Pr. 74.
—
Torque detection
827
filter 1
Torque detection
837
filter 2
Model speed
828
control gain
Speed feed forward
control/model
877
adaptive speed
control selection
Speed feed forward
878
filter
Speed feed forward
879
torque limit
Load inertia ratio
880
Speed feed forward
881
gain
Incre Initial
Range
ments Value
Set the integral time during speed control.
(Decrease the value to shorten the time
0.001s 0.333s 0 to 20s
taken for returning to the original speed if
speed variation with disturbance occurs.)
Second function of Pr. 821 (valid when the
0 to 20s
RT terminal is on)
0.001s 9999
9999 No function
Set the primary delay filter for the speed
0.001s 0.001s 0 to 0.1s
feedback.
Second function of Pr. 823 (valid when RT
0 to 0.1s
signal is on)
0.001s 9999
9999 No function
Set the proportional gain for the current
control of the q and d axes. (Increasing the
1% 100% 0 to 200% value improves trackability in response to a
current command change and reduces
current variation with disturbance.)
Second function of Pr. 824 (valid when the
0 to 200%
RT terminal is on)
1% 9999
9999 No function
Set the integral time for the current control
of the q and d axes. (Decreasing the value
0.1ms 5ms 0 to 500ms shortens the time taken to return to the
original torque if current variation with
disturbance occurs.)
Second function of Pr. 825 (valid when the
0 to 500ms
RT signal is on)
0.1ms 9999
9999 No function
Set the primary delay filter for the current
0.001s 0s 0 to 0.1s
feedback.
Second function of Pr. 827 (valid when the
0 to 0.1s
RT signal is on)
0.001s 9999
9999 No function
1% 60% 0 to 1000% Set the gain for model speed controller.
0 Normal speed control is exercised
1 Speed feed forward control is exercised.
1 0
2 Model adaptive speed control is enabled.
Set the primary delay filter for the speed
0.01s 0s 0 to 1s feed forward result calculated using the
speed command and load inertia ratio.
Limits the maximum value of the speed
0.1% 150% 0 to 400%
feed forward torque.
0 to 200 Set the load inertia ratio.
0.1 7
Inertia ratio found by easy gain turning.
times
Set the feed forward calculation result as a
1% 0% 0 to 1000%
gain.
Parameter List
Para
meter
copy
Description
× : disabled
All
Param
param
eter
eter
clear
clear
: enabled
3
×
123