Mitsubishi FREQROL-SFJ - 3.8.7 Adjustment of servo rigidity

(2) Adjustment of time
for oriented spindle stop
Speed
Normal speed
Point at which speed changes to
"oriented spindle stop" speed
Set the corresponding parameters properly, referring
to the following table:
I
Adjustment
Ip(;
; [;p(;:i]
!csp;
Overrun at stop
Note 1 f:
Increase parameter
setting.
I
-1 Do not change parameter
Long orientation
setting.
\: Decrease parameter
setting.
Hunting at stop
Adjust 1x1 [[%??I)
f
irst
and then adjust w].
If large hunting occurs at oriented spindle stop, it
is likely that position detector (magnesensor, encoder,
etc.) is installed improperly.
Install position detector correctly and then perform
the adjustment described above again.
3.8.7 Adjustment of servo rigidity
"Servo rigidity"
at oriented spindle stop can be increased
as follows:
1)
Increase
I
PGl
setting (magnesensor type) or
El
PG2
set-
ting (encoder type) to an extent where overrun does not
occur.
2)
By setting bit of parameter
I=], increase two magni-
fications Kp and Ki proportionally (if Kp is set to
"I . 2" ,
for example, Ki should be set to "'1.2").
If intense vibration occurs at oriented spindle stop,
the magnifications should not be increased further.
3)
"T of parameter
[El is "gain" for "advance/delay"
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