January 2012 6.18 Spindles 1039
6.18.12 Tapping
Tapping is executed with position feedback control. The spindle and the tool
axis interpolate with each other. A floating tap holder is not required.
An oriented spindle stop is performed before tapping.
I.e., a certain spindle position is assigned to each axis position. This
synchronization makes it possible to cut the same thread more than once. The
NC orients the spindle.
The feed-rate can be changed during tapping. In MP_sourceOverride you
define the override source (feed-rate override or spindle speed override) for
tapping, see page 1356. The MANUALplus 620 automatically adapts the
spindle speed if the feed rate is changed.
Define another parameter set and switch to this parameter set if you want
to achieve a specific control response for tapping.
Under certain circumstances it can make sense to define a separate kv factor
for the spindle during tapping. Example:
Reduce the kv factor during tapping to optimize the control response of the
spindle.
You can define a specific kv factor for the spindle during tapping in
MP_kvFactorTapping. This parameter overwrites the value in the
CfgPosControl/kvFactor parameter.
MP_kvFactorTapping
kv factor for tapping
Available from NCK software version: 597 110-05.
Format: Numerical value
Input: Only effective during tapping; replaces the value in
CfgPosControl/kvFactor.
If the parameter is not defined or 0, the value in CfgPosControl/
kvFactor is used.
Default: No value, parameter optional
Access: LEVEL3
Reaction: RUN
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