GSK GSK980TDc, Руководство пользователя

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Chapter 6 Memorizing Pitch Error
445
Ⅲ
Connection
the position No.001 in the offset table from the machine zero. So the pitch error offset can only be
done in the positive moving direction of the machine coordinate system.
The position No.000 in the offset table corresponds to the reference point (i.e. pitch error origin
0), the offset point 1 corresponds to a point of positive 10.000 moving from this reference point, and a
following offset point from this point every 10.000 interval. The 127
th
offset point is the offset at
position 1270.000. Therefore, at offset point 1, set a offset value moving from 0 to 10.000, at offset
point 2, set a offset value when moving from 10.000 to 20.000. At offset point N, set a offset value
when moving from (N-1)×(offset interval) to N×(offset interval).
The following table content is resulted from the above:
Actually the machine moves from the reference point to the point of +30.000, the pitch error offset
is: (+7)+(-6)+(+4)=+5
②
Data parameter No.099 (pitch error origin) =60, No.103(offset interval) =10.000
When the pitch error origin is set to 60:
For the positive moving, the 1
st
segment error offset is set by position No.061 in the offset table,
the 2
nd
segment by position No.062. The Nth segment error offset is set by position No.060+N in the
offset table.
For the negative moving, the 1
st
segment error offset is set by position No.060 in the offset table,
the 2
nd
segment by position No.059. The Nth segment error offset is set by position No.060-N in the
offset table.
The machine zero is taken as the reference point of the pitch error origin, when moving from the
positive of machine coordinate system, it begins to compensate by the corresponding position
No.061 in the offset table; when moving from the negative of the machine coordinate system, it
begins to compensate by the position No.060. Therefore the pitch offset can be done when moving in
the positive or the negative axis of machine coordinate system.
Machine coordinate
system
Offset
parameter No.
Offset
value
Drive unit current code
pulses before compensating
Drive unit current command
pulses after compensating
Reference point 0 000 000 00000 00000
10.000 001 7 10000 10007
20.000 002 -6 20000 20001
30.000 003 4 30000 30005
…… 004 …