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9 MAJOR POSITIONING CONTROL
Da.2
"
Control system"
interpolation control
Linear 2 (ABS, INC)
Fixed-feed 2
Circular sub
(ABS, INC)
Circular right
(ABS, INC)
Circular left
(ABS, INC)
Linear 3 (ABS, INC)
Fixed-feed 3
Linear 4 (ABS, INC)
Fixed-feed 4
: Setting possible,
1 "mm" and "inch" unit mix possible.
2 "degree" setting not possible. A "Circular interpolation not possible (error code: 535)" will occur and the position
cannot start if circular interpolation control is set when the unit is "degree". The machine will immediately stop if
"degree" is set during positioning control.
3 The unit set in the reference axis will be used for the speed unit during control if the units differ or if "mm" and "inch"
are combined.
POINT
•
When the "reference axis speed" is set during interpolation control, set so the
major axis side becomes the reference axis. If the minor axis side is set as the
reference axis, the major axis side speed may exceed the "
value".
Limits to interpolation control
There are limits to the interpolation control that can be executed and speed
Pr.20
(
Interpolation speed designation method) that can be set, depending on
Pr.1
the "
Unit setting" of the reference axis and interpolation axis. (For example,
circular interpolation control cannot be executed if the reference axis and
interpolation axis units differ.)
The following table shows the interpolation control and speed designation limits.
Pr.20
Interpolation speed
designation method
Composite speed
Reference axis speed
Composite speed
Reference axis speed
Composite speed
Reference axis speed
Composite speed
Reference axis speed
: Setting not possible.
Axis operation status during interpolation control
"In interpolation" will be stored in the "
interpolation control. "Standing by" will be stored when the interpolation operation
is terminated. Both the reference axis and interpolation axis will carry out a
deceleration stop if an error occurs during control, and "error occurring" will be
stored in the operation status.
Reference axis and interpolation
axis units are the same, or a
combination of "mm" and "inch".
3
Md.26
Axis operation status" during
9 - 24
MELSEC-Q
Pr.8
Speed limit
Pr.1
Unit setting
1
Reference axis and
interpolation axis units
differ
3
2
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