
B-63943EN-1/02 11.SPINDLE SPEED FUNCTION
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11.17 SIMPLE SPINDLE SYNCHRONOUS CONTROL
INDEPENDENT PITCH ERROR COMPENSATION
FUNCTION
Overview
When Cs contouring control axes are placed under simple spindle
synchronous control, pitch error compensation can be exercised on the
master spindle and slave spindle independently of each other.
With the bi-directional pitch error compensation option, bi-directional
pitch error compensation can also be enabled.
Explanation
When the master spindle is exercising Cs contouring control in simple
spindle synchronous control, the slave spindle is also placed in the Cs
contouring control mode.
An address and position related to a move command are displayed
only for the master spindle, and the slave spindle performs the same
operation as specified by the move command for the master spindle.
The same pitch error compensation as applied to the master spindle is
applied to the slave spindle.
The same timing and compensation amount of pitch error
compensation are used for the master spindle and slave spindle.
A pitch error compensation amount different from that for the master
spindle can be applied to the slave spindle by setting bit 1 (EPC) of
parameter No. 3601 to 1 and setting the parameters for the slave
spindle (pitch error compensation reference position compensation
number, minus side compensation point number, and plus side
compensation point number) and pitch error compensation data for the
slave spindle.
The same timing of pitch error compensation application is applied to
the master spindle and slave spindle.
The parameter settings of a pitch error compensation interval and
compensation magnification for the master spindle are valid.
Pitch error compensation point numbers specific to the slave spindle
are required in addition to those used for the master spindle.
When bi-directional pitch error compensation is used, a different type
of pitch error compensation can be applied to a movement in each of
the positive and negative directions.