Appendix 1 Explanation of Parameters
MITSUBISHI CNC
406
Appendix 1.15 Machine Error Compensation Function Outline
Appendix 1.15.1 Outline
(1) Memorized pitch error compensation
According to the specified parameters‚ this method compensates an axis feed error caused by a ball
screw pitch error‚ etc.
With the reference point defined as the base‚ as shown in Fig 1.1, set the compensation amount in the
division points obtained by equally dividing the machine coordinates.
The compensation amount can be set by either the absolute or incremental system. Select the desired
method with the "#4000 Pinc".
Machine position is compensated between division points n and n+1 as much as compensation amount
between them by linear approximation.
▲
n
n+
1
▲
▲
▲
▲
▲
n+
2
▲
Real machine
position
Ideal machine
position
Real machine position for
which no compensation
has been made
Command machine
position
Reference position
Compensation
amount
between
division points
Command machine position
Compensation
amount
: Division point
Fig. 1.1 Relationship between the compensation amount and machine position
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Страница 116: ...99 6 Setting Machine Parameters ...
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