Table of Contents
Advertisement
K K K K
Stabilizing Speed (Speed Feedback Detection Function)
The speed feedback detection control (AFR) stabilizes the speed when a load changes swiftly.
The speed is compensated by the amount of fluctuation from the current feedback torque.
nRelated Parameters
Name
Param-
eter
Num-
LCD Display
ber
Speed feedback detection
control (AFR) gain
N2-01
AFR Gain
Speed feedback detection
control (AFR) time con-
N2-02
stant
AFR Time
Speed feedback detection
control (AFR) time con-
N2-03
stant 2
AFR Time 2
Description
Set the internal speed feedback detection control
gain using the multiplication function.
Normally, there is no need to make this setting.
Adjust this parameter as follows:
• If hunting occurs, increase the set value.
• If response is low, decrease the set value.
Adjust the setting by 0.05 at a time, while check-
ing the response.
Set the time constant to decide the rate of change
in the speed feedback detection control.
Set the time constant to decide the amount of
change in the speed.
Improved Operating Efficiency
Control Methods
Change
Setting
Factory
during
Range
Setting
Opera-
V/f
tion
0.00 to
1.00
No
No
10.00
0 to 2000
50 ms
No
No
0 to 2000
750 ms
No
No
Open
V/f
Loop
with
Vec-
PG
tor
No
A
No
A
No
A
39
6-
Advertisement
Table of Contents
Troubleshooting
