Mitsubishi FREQROL-SFJ Maintenance Manual page 43

Speed
Normal speed
Set the corresponding parameters properly, referring
to the following table:
Overrun at stop
Long orientation
Hunting at stop
Adjust 1x1 [[%??I)
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:
Increase I
ting (encoder type) to an extent where overrun does not
occur.
By setting bit of parameter I=], increase two magni-
fications Kp and Ki proportionally (if Kp is set to
If intense vibration occurs at oriented spindle stop,
the magnifications should not be increased further.
Adjustment
f
irst and then adjust w].
setting (magnesensor type) or El
for example, Ki should be set to "'1.2").
Point at which speed changes to
"oriented spindle stop" speed
Note 1 f: Increase parameter
setting.
Do not change parameter
setting.
setting.
PG2
set-