Mitsubishi Electric MELSEC-L LD75P User Manual page 400

(b) Restrictions
2-axis circular interpolation control cannot be set in the following cases.
• When "degree" is set in "[Pr.1] Unit setting"
• When the units set in "[Pr.1] Unit setting" are different for the reference axis and interpolation axis. ("mm"
and "inch" combinations are possible.)
• When "reference axis speed" is set in "[Pr.20] Interpolation speed designation method"
An error will occur and the positioning will not start in the following cases. The machine will immediately stop if
the error is detected during positioning control.
• When the radius exceeds "536870912 (=2
control is possible is "536870912 (=2
positioning start.
• When the start point address is the same as the center point address  The error "Center point setting
error" (error code: 527) will occur.
• When the end point address is the same as the center point address  The error "Center point setting
error" (error code: 527) will occur.
• When the center point address is outside the range of -2147483648(-2
"Center point setting error" (error code: 527) will occur.
(c) Positioning data setting example (Reference axis and interpolation axis are
designated as axis 1 and axis 2, respectively.)
The following table shows setting examples when "2-axis circular interpolation control with center point
designation (ABS circular right, ABS circular left)" is set in positioning data No. 1 of axis 1. (The required values
are also set in positioning data No. 1 of axis 2.)
Setting item
[Da.1] Operation pattern
[Da.2] Control system
Acceleration time
[Da.3]
No.
Deceleration time
[Da.4]
No.
Axis to be
[Da.5]
interpolated
Positioning
Positioning
data No.1
[Da.6] address/movement
amount
[Da.7] Arc address
[Da.8] Command speed
[Da.9] Dwell time
[Da.10] M code
Refer to  Page 152, Section 5.3 for information on the setting details.
398
29
)". (The maximum radius for which circular interpolation
29
)"  An error "Outside radius range" (error code: 544) will occur at
Axis 1 (reference Axis 2
axis) setting (interpolation axis)
example setting example
Positioning

complete
ABS circular

right/ABS circular
left

1

0

Axis 2
8000.0m 6000.0m
4000.0m 3000.0m

6000.00mm/min
500ms 

10
31
) to 2147483647(2
Setting details
Set "Positioning complete" assuming that the next
positioning data will not be executed.
Set absolute system, 2-axis circular interpolation control
with center point designation. (Select clockwise or
counterclockwise according to the control.)
Designate the value set in "[Pr.25] Acceleration time 1"
as the acceleration time at start.
Designate the value set in "[Pr.10] Deceleration time 0"
as the deceleration time at deceleration.
Set the axis to be interpolated (partner axis). If the self-
axis is set, an error will occur.
Set the end point address. (Assuming "mm" is set in
"[Pr.1] Unit setting".)
Set the arc address. (Assuming "mm" is set in "[Pr.1] Unit
setting".)
Set the speed during movement to the end point
address. (Designate the composite speed in "[Pr.20]
Interpolation speed designation method".)
Set the time the machine dwells after the positioning stop
(pulse output stop) to the output of the positioning
complete signal.
Set this when other sub operation commands are issued
in combination with the No. 1 positioning data.
31
-1): The error