Siemens SINUMERIK 828D

G2: Velocities, setpoint / actual value systems, closed-loop control
7.2 Velocities, traversing ranges, accuracies
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
331
Minimum path, axis velocity
The following restriction applies to the minimum path or axis velocity:
The computational resolution is defined using machine data:
MD10200 $MN_INT_INCR_PER_MM (computational resolution for linear positions)
or
MD10210 $MN_INT_INCR_PER_DEG (computational resolution for angular positions)
If V
min
is not reached, no traversing is carried out.
Example:
MD10200 $MN_INT_INCR_PER_MM = 1000 [incr. /mm];
Interpolation cycle = 12 ms;
⇒ V
min
= 10
-3
/(1000
incr
/
mm
x 12 ms) = 0.005
mm
/
min
;
The value range of the feedrates depends on the computational resolution selected.
For the standard assignment of machine data:
MD10200 $MN_INT_INCR_PER_MM
(computational resolution for linear positions) (1000 incr./mm)
or
MD10210 $MN_INT_INCR_PER_DEG
(computational resolution for angular positions) (1000 incr./deg.)
The following value range can be programmed with the specified resolution:
If the computational resolution is increased/decreased, by a factor, then the value ranges change accordingly.
Range of values for path feed F and geometry axes:
Metric system: Inch system:
0.001 ≤ F ≤ 999,999.999
[mm/min, mm/rev, degrees/min, degrees/rev]
0.001 ≤ F ≤ 399,999.999 [inch/min, inch/rev]
Range of values for feedrate for positioning axes:
Metric system: Inch system:
0.001 ≤ FA ≤ 999,999.999
[mm/min, mm/rev, degrees/min, degrees/rev]
0.001 ≤ FA ≤ 399,999.999
[inch/min, inch/rev]
Range of values for spindle speed S:
0.001 ≤ S ≤ 999,999.999 [rpm]
9

ಥ
PLQ
&RPSXWDWLRQDOUHVROXWLRQ>
,QFU
PPRUGHJUHHV
@LQWHUSRODWLRQF\FOH>V@