
4.DESCRIPTION OF PARAMETERS B-64120EN/01
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#7 #6 #5 #4 #3 #2 #1 #0
FLR
4900
[Data type] Bit
FLR When the spindle speed fluctuation detection function is used, the
rates of allowance (q) and fluctuation (r) those are set in parameter
No.4911 and No.4912, respectively are set in steps of:
0 : 1%
1 : 0.1%
Rapid (q) of the fluctuation of spindle speed which is assumed to be the
specified spindle speed
4911
[Data type] Word
[Unit of data, valid data range]
Unit of data
1% 0. 1% (T series)
Valid data range
1 to 100 1 to 1000
NOTE
Unit of data depends on parameter No.4900#0 FLR
(T series only)
Set the ratio (q) of the spindle speed which is assumed to be the
specified spindle speed in the spindle speed fluctuation detection
function.
Let the commanded speed be Sc. When the actual spindle speed
reaches between (Sc-Sq) and (Sc + Sq), it is assumed to be the
commanded speed.
The spindle speed fluctuation detection starts.
where,
q
Sq = Sc ×
100
Spindle speed fluctuation ratio (r) for which no alarm is activated in the
spindle speed fluctuation detection function
4912
[Data type] Word
[Unit of data, valid data range]
Unit of data
1% 0. 1% (T series)
Valid data range
1 to 100 1 to 1000
NOTE
Unit of data depends on parameter No.4900#0 FLR
(T series only).
Set the spindle speed fluctuation ratio (r) for which no alarm is
activated in the spindle speed fluctuation detection function (see
Fig.4.20 (e)).