
4. DESCRIPTION OF PARAMETERS
B–63510EN/01
128
#7
4900
#6 #5 #4 #3 #2 #1 #0
FLR
[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%
4911
Rapid (q) of the fluction of spindle speed which is assumed to be the specified
spindle speed
[Data type] Word type
Unit of data 1% 0. 1% (T series)
Data range 1 to 100 1 to 1000
NOTE
Unit of data depends on parameter No.4900#0 FLR.
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, Sq = Sc
100
q
4912
Spindle speed fluctuation ratio (r) for which no alarm is activated in the spindle
speed fluctuation detection function
[Data type] Word
Unit of data 1% 0. 1% (T series)
Data range 1 to 100 1 to 1000
NOTE
Unit of data depends on parameter No.4900#0 FLR.
Set the spindle speed fluctuation ratio (r) for which no alarm is activated in
the spindle speed fluctuation detection function (see Fig.4.14 (e)).
4913
Spindle speed fluctuation value (d) for which no alarm is activated in the spindle
speed fluctuation detection function
[Data type] Word
[Unit of data] rpm
[Unit of data]
[Valid data range]
[Unit of data]
[Valid data range]