V1: Feedrates
17.2 Path feedrate F
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
1373
The maximum permissible spindle speed defined by means of G26 or setting data:
SD43220 $SA_SPIND_MAX_VELO_G26 (maximum spindle speed)
, cannot be exceeded.
In the event of incorrect programming that would cause one of the speed limits (G26 or SD43220
$SA_SPIND_MAX_VELO_G26) to be exceeded, the "Programmed speed too high" interface signal (DB31, ...
DBX83.1) is set.
In order to ensure smooth rotation with large part diameters, the spindle speed is not permitted to fall below a
minimum level.
This speed can be set via the setting data:
SD43210 $SA_SPIND_MIN_VELO_G25 (minimum spindle speed)
and, depending on the gear step, with the machine data:
MD35140 $MA_GEAR_STEP_MIN_VELO_LIMIT (minimum speed of the gear step)
.
The minimum spindle speed can be changed in the part program with G25. In the event of programming that
would mean one of the spindle limits (G25 or SD43220 $SA_SPIND_MAX_VELO_G25) is not reached, the "Set
speed too low" interface signal (DB31, ... DBX83.2) is set.
Figure 17-1 Spindle speed limitations
The various spindle speed limits are illustrated in the figure above. For more information and for information on
the effect of the setting data see:
References:
/FB1/ Function Manual Basic Functions; Spindles (S1);
Section: Spindle Monitoring Functions, Setting Data
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