
OPERATION
B–61404E/08
11. SETTING AND DISPLAYING DATA
574
If pitch error compensation data is specified, pitch errors of each axis can
be compensated per axis.
Pitch error compensation data is set for each compensation point at the
intervals specified for each axis. The origin of compensation is the
reference position to which the tool is returned.
The pitch error compensation data is set according to the characteristics
of the machine. The content of this data varies according to the machine
model. If it is changed, the machine accuracy is reduced.
In principle, the end user must not alter this data.
Pitch error compensation data can be set with external devices such as the
Handy File (see Chapter 9). Compensation data can also be written
directly with the MDI panel.
The following parameters must be set for pitch error compensation. Set
the pitch error compensation value by these parameters.
In the following example, 33 is set for the pitch error compensation point
at the reference position.
1
2
3
333231
34 35 36 37
–1
–2
j035 j036 j037 j038j032 j033 j034
+3 –1 –1+1+2–1 –3
34 35 36 3731 32 33
Reference position
Pitch error compensation value (absolute value)
Compensation number parameter
for the reference position
(No. V0000)
Compensation interval parameter
(No. 712 to 715)
V : Axis number
Compensation magnification
parameter (No. 011#0, #1)
Parameter
Compensation
position number
Compensation
value to be set
D Number of the pitch error compensation point at the reference position
(V : axis number) : Parameter No. V000
D Pitch error compensation magnification : Parameter No. 011#0, #1
D Interval of the pitch error compensation points : Parameter No. 0712
to 0715
D Setting compensation value : Parameter No. V001 + compensation
points
11.5.2
Displaying and Setting
Pitch Error
Compensation Data