
21
Manual for
Synchronous Spindle Motor Drive
EDT. DATE DESIG. DESCRIPTION PAGE /29
A-63639E-103 /03
NO.
TITLE
NEWLY Y.Toyozawa
K.Takahashi
2003.06.13 01
02 2003.10.15 K.Takahashi
dded SSM etc. Y.Toyozawa
03 2004.06.09 K.Takahashi Revised Pole detect, etc. Y.Toyozawa
angle ” of which initial value is 5 degrees. This parameter sets the magnification by % as against initial
value.
2
nd
, 1
st
digit: Magnification to velocity feedback threshold
This parameter decides the magnification to velocity feedback threshold for stop decision during the new
pole detection. If this parameter is “0”, 11min-1(10%) will be set as the threshold level.
15i 16i 30I 5
th
4
th
3
rd
2
nd
1
st
(9D53/C, 9D70/B or later)
3451 4451 4451 5
th
digit: Selection of excitation phase
4
th
, 3
rd
digit: Time constant for excitation current decays (unit: 0.1sec)
2
nd
, 1
st
digit: Final value for excitation current decays (unit: %)
These parameters are added for DC current mode. This parameter must be set “0” if the software except the
above is used.
5
th
digit: Selection of excitation phase
=0: The excitation phase is 0deg. and 90deg. position.
=1: The excitation phase is 0deg. and 120deg. position.
In the DC current mode, if the motor vibration continues and does not stop, the motor may be stopped by
this parameter=1.
4
th
, 3
rd
digit: Time constant for excitation current decays
This parameter decides time constant for excitation current decays.
2
nd
, 1
st
digit: Final value for excitation current decays
This parameter decides the final value for excitation current decays. Furthermore the start value for
excitation current decays is decided by 4
th
, 3
rd
digit of parameter No.4083. This parameter is set the ratio
against the maximum current Imax. Imax is specified by parameter No.4111.
4
th
,3
rd
(%)
of No.4083
Case of software except 9D53/C, 9D70/B o
Time
Excitation current
Final current =4
th
,3
rd
of No.4451(1%unit)
4
th
,3
rd
(%)
of No.4083
Time constant =4
,3
r
of No.4451
0.1sec
Possible by 9D53/C, 9D70/B or later
Time
Excitation