Mitsubishi Electric FR-A701 Instrucion Manual page 139

Parameter List
Parameter
Speed limit
807
selection
Forward rotation
808
speed limit
Reverse rotation
809
speed limit
810
Refer to Pr. 22.
—
811
Refer to Pr. 22 and Pr. 37.
—
812 to 817
Refer to Pr. 22.
—
Easy gain tuning
818
response level
setting
819
Easy gain tuning
selection
Speed control P
820
gain 1
Speed control P
830
gain 2
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
132
Incre Initial
Name
ments Value
1 0
0.01Hz 60Hz
0.01Hz 9999
1 2
1 0
1% 60%
1% 9999
0.001s 0.333s 0 to 20s
0.001s 9999
0.001s 0.001s 0 to 0.1s
0.001s 9999
Range Description
Use the speed command value during
0
speed control as speed limit.
According to Pr. 808 and Pr. 809, set the
1 speed limit in forward and reverse rotation
directions individually.
The analog voltage of the terminal 1 input
is used to make speed limit. For 0 to 10V
input, set the forward rotation speed limit.
(The reverse rotation speed limit is Pr. 1
Maximum frequency)
2 For -10 to 0V input, set the reverse rotation
speed limit. (The forward rotation speed
limit is Pr. 1 Maximum frequency.) The
maximum frequency of both the forward
and reverse rotations is Pr. 1 Maximum
frequency.
Set the speed limit level during forward
0 to 120Hz
rotation. (valid when Pr. 807 = 1)
Set the speed limit level during reverse
0 to 120Hz
rotation. (valid when Pr. 807 = 1)
The setting is the same as that of the
9999 torque limit in the forward rotation
direction.
1 : Slow response
↓
1 to 15
15 : Fast response
0 No tuning
With load estimation
1 (only under vector
control)
Manual input of load
2
(Pr. 880)
Set the proportional gain for speed control.
(Increasing the value improves trackability
0 to 1000% in response to a speed command change
and reduces speed variation with
disturbance.)
Second function of Pr. 820 (valid when RT
0 to 1000%
signal is on)
9999 No function
Set the integral time during speed control.
(Decrease the value to shorten the time
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)
9999 No function
Set the primary delay filter for the speed
feedback.
Second function of Pr. 823 (valid when RT
0 to 0.1s
signal is on)
9999 No function
Para Param
meter eter
copy clear
: enabled
× : disabled
The optimum gain
×
is automatically set
from the torque
command and
speed during motor
operation.
All
param
eter
clear