
3/6
Design.
Date Ed.
1
05.08.03
HEET
DRAW. No.
U
T.
TITLE
G.L i
Revision of spindle software for αi SP,
βi SVSP TYPE C (9D60/C)
B-65280E/05-02
SPCMD (Velocity command data from CNC, 16384=Maximum motor speed)
Velocity command data from CNC on velocity control mode (spindle control mode).
16384=Maximum motor speed (setting value of Prm.No.4020)
Set Conv. Coef = setting of Prm.No.4020 and Conv. Base = 16384 to convert the unit to "min
-1
"
SPSPD (Spindle speed, 4096=1min
-1
)
Actual spindle speed.
Maximum resolution of this data is "4096 = 1 min
-1
" at shift value="0".
In default setting, shift value is "-12" and the resolution is "1 = 1 min
-1
".
Data for position control
MCMD (Motion command per communication period, 4096p/rev)
Motion command transferred from CNC every communication period.
Resolution of this data : 4096p/rev
ERR (Position error, 4096p/rev)
Position error displayed on DGN No.714.
This data does not contain the error due to FAD smoothing.
Resolution of this data : 4096p/rev
ERRC (Position error [CNC], 4096p/rev)
Position error displayed on DGN No.418.
This data contains the error due to FAD smoothing.
Resolution of this data : 4096p/rev
SYNC (Synchronous error, 4096 p/rev)
Synchronous error on rigid tapping and spindle synchronization.
Rigid tapping : Difference between spindle position error and servo axis position error.
Spindle synchronization: Absolute value of position error difference between master spindle and
slave spindle.
Prm.No.3700#7 should be set to "1" to measure this data. (This function is for maintenance of
FS16i/18i /21i and FS30i /31i /32i. You must set this parameter to"0" after use this function.)
ORER (Position error at orientation, 2
24
p/rev)
Position error used in orientation control.
Maximum resolution of this data is "2
24
p/rev" at shift value="0".
In default setting, shift value is "-10" and the resolution is "16384p/rev (360deg)".
But the actual maximum resolution is 4096p/rev.