M800S/M80/E80 Series Connection and Setup Manual
24 Setting the Machine Error Compensation
505
IB-1501269-J
24.2.2.2 When the basic axis is a rotary axis
This section describes how to set bidirectional pitch error data by taking a rotary axis having a pitch error such as
illustrated below as an example.
Set the pitch error compensation data for an rotary axis in the same way as a linear axis.
However, note the following points.
- Set the interval between two division points so that the last division point will be 360 degrees.
- The sum of compensation amount being set in the incremental amount method will always be "0".
- The compensation amount of the last point in the absolute amount method (360 degrees) will always be "0".
[Parameter settings]
[Compensation amount settings]
Parameter
#4001 #4002 #4003 #4004 #4005 #4006 #4007 #4008 #4009
cmpax drcax rdvno mdvno pdvno sc spcdv twopc refcmp
Setting value C C 4122 4123 4134 1 60.000 1 4
Division point No. #4123 #4124 #4125 #4126 #4127 #4128 #4129 #4130 #4131 #4132 #4133 #4134
Compensation
amount
Incremental
amount method
-4 -2 -2 4 6 0 -4 -2 -4 -6 -2 0
Absolute
amount method
-42062-6-42-2-242
Movement direction Positive Negative
#4124#4123 #4126 #4127
2
1
-1
-2
-3
(-2) (1) (0) (3) (1)
(-2)
(-1)
(-3)
3
#4125
(-2)
(-1)
(-3)
#4128
(0)
(-1)
(2)
(-1)
(3)
(0)
(-2)
(-2) (1) (-1) (-1) (2)
(1)
#4130#4129 #4132 #4133
#4131 #4134
Bidirectional pitch error (rotary axis)
Compensation amount in
positive direction
(Incremental amount method)
Error
Direction of reference
position return
Compensation amount in
negative direction
(Incremental amount method)
Compensation amount in
negative direction
(Absolute amount method)
Error amount in negative direction
Error amount in positive direction
Basic axis machine coordinate
Reference when the movement
direction is negative
Compensation amount in
positive direction
(Absolute amount method)
360
degrees
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