User Manual Of EL7-EC** AC Servo
223
Velocity
Feedback
Hysteresis
Level
1st
2nd
1st
Position
Command
Velocity
Feedback
Hysteresis
Level
1st
2nd
1st
Switch when both
conditions fulfilled
10
Pending position
command
+actual velocity
Valid for position control.
Switch to 2
nd
gain if position command
≠
0
Switch to 1
st
gain if positional command = 0 throughout the
duration of delay time and absolute value of actual velocity
remains smaller than (level - hysteresis) (r/min)
For position control mode, set Pr1.15=3,5,6,9,10;
For velocity control mode, set Pr1.15=3,5,9;
** Above ‘level’ and ‘hysteresis’ are in correspondence to Pr1.17 Position control gain switching level
and Pr1.18 Hysteresis at position control switching.
Pr1.17
Name
Position control gain
switching level
Mode
F
Range
0~2000
0
Unit
Mode
dependent
Default
50
Index
2117h
Activation
Immediate
Set threshold value for gain switching to occur.
Unit is mode dependent.
Switching
condition
Unit
Position
Encoder pulse
count
Velocity
RPM
Torque
%
Please set level
≥
hysteresis
Pr1.18
Name
Hysteresis at position
control switching
Mode
F
Range
0~2000
0
Unit
Mode
dependent
Default
33
Index
2118h
Activation
Immediate