— 5-12 —
B
B
3
3
t
t
y
y
p
p
e
e
B
B
5
5
t
t
y
y
p
p
e
e
5.3. Manual Tuning
5.3.3. Adjustment of Velocity Loop Integration Frequency (VI)
2
2
3
3
t
t
y
y
p
p
e
e
2
2
5
5
t
t
y
y
p
p
e
e
5.3.3. Adjustment of Velocity Loop Integration Frequency (VI)
l Perform the adjustment of velocity loop integration frequency (VI) after the adjustment of the
velocity loop proportional gain (VG).
1）Start the program for adjusting the parameter VI.
The screen displays the message as shown below and you can change the VI setting up and down
using the (+) and the (-) keys.
(Actually the VI parameter differs with a load inertia and rotation angel.)
[+],[-],[ENT]
444( 333)
STEP1
_VI1
I / V J
ENT
A
1
(5)
(2)
(3) (4)
l Explanation of the message (screen)
(1) Key function
and
-
+
SHIFT
: Pressing the key one time increases 1 resolution of the VI.
-
+
: Pressing the key one time decreases 1 resolution of the VI.
ENT
: Press the key to store the VI setting.
(2) This part indicates the current setting of VI.
(3) This part indicates the changing resolution of VI data when the (+)
or the (-) key is
pressed. (VI changing resolution)
(4) Response index number: Small number denotes better response to the command.
(5) Positioning index number: Smaller number requires less time to complete a
positioning.
！
Caution : Pressing the SP key will alter the changing resolution of VG for one
press of the (+) or the (-) key to 1/10 of the current setting.
Pressing the BS
key will alter the changing resolution of VG for one
press of the (+) or the (-) key to 10 times of the current setting.
2) Press the (+) key several times observing motion of the Motor.
Pressing ,
[+],[-],[ENT]
333( 222)
STEP1
_VI3
SHIFT
-
+
-
+
• • •
Observe how the motion of Motor gets crisper as the response index decreases.
To Next Page
Loading...