Mitsubishi Electric M800W Series, Connection And Set Up Manual

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M800W/M80W Series Connection and Setup Manual
27 Setting the Machine Error Compensation
530 IB-1501268-K
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.
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.
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)".
Allocating compensation No.
#4101 #4103 #4102 #4104 #4105 #4106
2
1
- 1
- 3
3
#4107 #4109 #4108 #4110 #4111 #4112
- 2
Error
Bidirectional pitch error (linear axis)
Direction of reference
position return
Interval between two
division points
Error amount for the movement
in the negative direction
Basic axis machine coordinate
Compensation data No. in the
negative direction
Compensation data No. in the
positive direction
Error amount for the movement
in the positive direction
#4101 #4103 #4102 #4104 #4105
2
1
- 1
- 3
3
#4106 #4108 #4107 #4109 #4110 #4111
- 2
(None)
Bidirectional pitch error having odd number of compensation points (linear axis)
Error
Direction of reference
position return
Interval between two
division points
Error amount for the movement
in the negative direction
Basic axis machine coordinate
Compensation data No. in the
negative direction
Compensation data No. in the
positive direction
Error amount for the movement
in the positive direction