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Increased spindle
power for roughing
956
In an EMERGENCY STOP, braking of the spindle is delayed compared to
braking of the axes by the time in MP3550. This avoids tool breakage during
power milling, because low spindle speeds might result in the spindle coming
to a standstill before the axes do. However, the spindle braking is delayed by
no more than half a spindle revolution.
MP3350
Maximum permissible overshoot of the spindle speed in
percent of the nominal spindle speed
Input:
0 to 100 [%]
MP3351
Entry of an absolute value for the permissible overshoot of
the spindle speed
Input:
0.001 to 99 999.999 [rpm]
0: Monitoring off
MP3540
Permissible spindle speed shortfall
Input:
1 to 99 [%]
0 = Monitoring not active
MP3542
Minimum spindle speed as of which the monitoring in
MP3540 becomes active
Input:
0 to 100 000 [rpm]
MP3550
Delay of emergency-stop reaction of spindles
Input:
0.001 to 0.100 [s]
0 = Delay not active
With MP3530 and MP13530 you can avoid a reduction in the maximum
spindle power during roughing due to changes in load when the tool's teeth
are engaged in the material.
Here the spindle speed is increased higher than previously when there is no
load. It is now increased above the nominal speed, which was not the case
previously. Energy is stored in the inertia of the spindle, and is then available
when the teeth engage the material. This increases the mean power, and the
mean speed corresponds to the nominal speed.
If MP3530 or MP13530 are set, an overshoot can occur when the nominal
speed is reached. If this overshoot impairs the performance, then you may
have to deactivate the increase of the spindle power.
MP3530
Increased spindle power for roughing
Input:
0 = Not active
1 = Increased spindle power for roughing
MP13530
Increased spindle power for roughing (second spindle)
Input:
0 = Not active
1 = Increased spindle power for roughing
HEIDENHAIN Technical Manual iTNC 530 HSCI
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