M800W/M80W Series Connection and Setup Manual
27 Setting the Machine Error Compensation
27.2 Bidirectional pitch error compensation
27.2.1 Outline
Compensation amounts can be set respectively for the movement in positive and negative directions, and
compensation can be made for each direction. This method will reduce the difference between the path in the
positive direction and path in the negative direction.
You can set the compensation amount for each division point obtained by equally dividing the machine coordinates
based on the reference position. (See the figure below.)
The compensation amount can be set by either the absolute or incremental amount method. Select the method with
"#4000 Pinc".
Machine position between division points "n" and "n+1" is smoothly compensated by the linear approximation of the
compensation amount.
Actual machine position
Compensation
amount in the
positive direction
Compensation
amount in the
negative direction
Actual machine position
without compensation
(When moving in the forward
direction)
n
n+1
Compensation amount
between two division points
Relationship between the compensation amount and machine position
529
Ideal machine position
Actual machine position without
compensation
(When moving in the negative direction)
n+2
n+3
: Division point
Commanded
machine position
Commanded
machine position
Commanded
machine position
IB-1501268-K