YASKAWA VS-626MT Series Manual page 27

symbol b Function
LEVEL
Level adjustment of posi-
tion detection
ORIENT. SP
Speed adjustment in orien-
tation mode
EH . GAIN
L . GAIN
4 .-
ADJUSTMENT
Gain,adjustment of servo
loop
BIAS
Fine djustment of orien-
tation position
FRICTION
Fine adjustment of orien-
tation position in H Gear
Adjustment
Move the motor in the forward direction slowly and chech the
waveform at CHK4 . If the voltage isn't 20Vp-p ±0 .5V, adjust
to correct it .
If the waveform is like (b) : terminals 13, 14 should be switched
Level
20V i ±0 .5V
Orientation Speed=
NOR .
*
NREF * 20V
Reference
(CHK1) 50
4500 * 6
x2011 .33
(a) Correct
Waveform
Waveform
Motor speed (not spindle speed) should be set over 30rpm in
orientation mode .
Orientation Seed Setting Example
NH Max . rated speed in H gear )= 4500rpm
N REF (Max . rated speed reference )= 6V
N OR (orientation speed)=50rpm
Adjust the gain, so there is no hunting when the spindle stops
it
orientation position .
Adjust H . Gain in H gear
Adjsut L . Gain in L gear
Select L gear range, adjust so the spindle position coincides
with the proper orientation position .
Select H gear range, adjust so spindle position coincides with
the proper orientation position .