No.
Phenomenon
Remedy
5) The lower hole is shallow and
cutting chip is not correctly
removed.
6)
A tap where cutting chip is not
correctly removed is used.
The load is heavy and
1) Set the spindle parameter 0RS2
the spindle stops
dur-
bit B to 1 to select strong
ing tapping operation.
excitation.
4
2) Increase the speed loop gain.
Increase the spindle parameters
(ORSl
Kl
magnification and Kp
magnification).
4.3
Notes
1) When the spindle is driven by a belt in the semi-close
type (which does not use a spindle encoder), due to
slippage of belt, it is difficult to perform accurate
tapping operation.
In the case of belt driving type, use a spindle encoder
and perform the synchronous tapping operation using
the spindle encoder.
2)
When the spindle is connected to the encoder in the
ratio of 2 to 1 in the closed type (which uses the
spindle encoder),
set the spindle parameter PGC to
a value which is double of axis specification A axis
tap-g.
Set the spindle parameter s-gear to 1.
-119-
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