Shibaura CA20-M10, Руководство по эксплуатации

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
Absolute coordinate position (a) and relative coordinate position (i)
When the absolute coordinate position (a) is selected, the target position becomes the
coordinate position according to the origin point (coordinate X=0, Y=0). When the relative
coordinate position (i) is selected, the target position becomes the relative movement
amount from the axis position at the time of the command execution start. For example,
when the current position is Point A (coordinate X=20, Y=10) and the movement amount is
X=50, Y=30, the target position of Point B becomes as shown below.
Absolute coordinate position (a)
X
Y
●
B
●
A
20 50
10
30
0
●
B
Relative coordinate position (i)
X
Y
●
A
20 70
10
40
30
50
0
NOTE

When OFS command is used, the absolute coordinate position is gained by
adding the amount which is set with OFS command.

The relevant coordinate position movement during the MOVP or MVE commands
will be the relative movement from the axis position when the execution of that
command starts.

When the first axis movement after the axis stops due to an error during the axis
movement command is designated as a relative coordinate position, the
movement will be relative from that coordinate position and will not be the
commanded start position before the error occurred.

In the same manner, if an absolute encoder axis is connected, and the first axis
movement after the axis stops due to the power being turned OFF and ON during
execution of an axis movement command is designated as a relative position, the
movement will be relative from that coordinate position and will not be the
commanded start position before the power was turned OFF.