Setting Method; When The Basic Axis Is A Linear Axis - Mitsubishi Electric M800W Series Connection And Set Up Manual

M800W/M80W Series Connection and Setup Manual
27 Setting the Machine Error Compensation

27.2.2 Setting Method

27.2.2.1 When the basic axis is a linear axis

This section describes how to set bidirectional pitch error data by taking the linear axis having a pitch error such as
illustrated below as an example.
Allocating compensation No.
As shown in the figure below, compensation range is divided into equal intervals based on the reference position, and
compensation data Nos. are allocated for each movement in positive and negative directions.
For both positive and negative directions, numbers are allocated from the division point on the most negative side toward
the positive side. (The figure shows an example of allocating #4101 to # 4106 in the positive direction and #4107 to
#4112 in the negative direction.)
No compensation data No. is allocated to the reference position.
Direction of reference
position return
#4101 #4102 #4103
#4107 #4108 #4109
Make sure to allocate the same number of compensation data to division points for positive and negative directions.
When the odd number of compensation data are set, compensation points allocated to the positive direction become one
point less than that of the negative direction. For example, in the following figure, the division point indicated with
"(None)" has no allocated compensation No. Accordingly, the compensation data of the previous compensation No.
(#4105) is also used for the division point indicated with "(None)".
Direction of reference
position return
#4101 #4102 #4103
#4106 #4107 #4108
Bidirectional pitch error having odd number of compensation points (linear axis)
IB-1501268-K
Error
Interval between two
3 division points
2
1
- 1
- 2
- 3
#4104 #4105
#4110 #4111
Bidirectional pitch error (linear axis)
Error
Interval between two
3 division points
2
1
- 1
- 2
- 3
#4104 #4105
#4109 #4110
Error amount for the movement
in the negative direction
Basic axis machine coordinate
Error amount for the movement
in the positive direction
Compensation data No. in the
#4106
positive direction
Compensation data No. in the
#4112
negative direction
Error amount for the movement
in the positive direction
Error amount for the movement
in the negative direction
Basic axis machine coordinate
Compensation data No. in the
(None)
positive direction
Compensation data No. in the
#4111
negative direction
530