Mitsubishi Electric M800VS Series Connection And Set Up Manual page 512

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M800VS/M80V Series Connection and Setup Manual

24 Setting the Machine Error Compensation

24.1 Memory-type Pitch Error Compensation/Memory-type Relative Position Error Compensation

Memory-type relative position error compensation

This function compensates the relative position error between two orthogonal axes caused by deflection of the moving

according to the specified parameters.

You can set compensation amount in the compensated axis direction for each division point obtained by equally dividing the

machine coordinates of the basic axis. (See the figure below.)

"Basic axis" refers to the one axis of two orthogonal axes on which relative position compensation is made. This axis is used

as the criterion for relative-error measurement. "Compensation axis" refers to the coordinate axis that is orthogonal to the

basic axis. The compensation is actually made for this coordinate axis.

Machine position between division points "n" and "n+1" is smoothly compensated by the linear approximation of the

compensation amount.

Actual machine position of compensation axis

Reference position

Compensation amount

between two division points

Compensation

Relationship between the compensation amount and machine position

Actual machine position

without compensation

: Division point

Commanded machine

position (basic axis)

Commanded machine

IB-1501613-A