Справочник Пользователя для Mitsubishi Electronics FR-V540-1.5K to 55K
49
Fine adjustment of gains for speed control
VE
CT
OR CONTROL
2
2.3.5
Speed feed forward control, model adaptive speed control (Pr. 828, Pr. 877 to Pr. 881)
By making parameter setting, select the speed feed forward control or model adaptive speed control.
The speed feed forward control enhances the trackability of the motor in response to a speed command
change.
The model adaptive speed control enables individual adjustment of speed trackability and motor disturbance
torque response.
The speed feed forward control enhances the trackability of the motor in response to a speed command
change.
The model adaptive speed control enables individual adjustment of speed trackability and motor disturbance
torque response.
Parameter
Name
Factory Setting
Setting Range
828
Model speed control gain
60%
0 to 1000%
877
Speed feed forward control/model
adaptive speed control selection
adaptive speed control selection
0
0,1,2
878
Speed feed forward filter
0s
0 to 1s
879
Speed feed forward torque limit
150%
0 to 400%
880
Load inertia ratio
7
0,1 to 200 times
881
Speed feed forward gain
0%
0 to 1000%
POINT
When model adaptive speed gain is selected, the data obtained from easy gain tuning is used for Pr. 828 "model
speed control proportional gain". Perform easy gain tuning also (simultaneously). (Refer to the Instruction Manual
(basic).)
speed control proportional gain". Perform easy gain tuning also (simultaneously). (Refer to the Instruction Manual
(basic).)
+
Load inertia
ratio
Model speed
control gain
Pr.828
J
Torque factor
iq current
control
IM
Encoder
J s
Pr.880
1
2
Pr.877
1
2
2
0
Pr.878
Speed feed
forward filter
Pr.879
Speed feed
forward torque
limit
Pr.877
Actual speed controller
Model speed
operation
1
J·s
Speed feed
forward gain
Pr.881
Model adaptive speed control
(J : Pr.880)
Speed
command
command
Speed control
P gain 1
Pr.820
Speed control
integral time 1
Pr.821
+
-
-
+
+
+
1