Mitsubishi Electric MELSEC-L LD75P User Manual page 166

Item
Value set with GX Works2
The setting value range differs according to the "[Da.2] Control system".
[Da.7] Arc address Here, the value within the [Table 1] range is set. ( Page 164, Section
5.3 (8) (a))
(8) [Da.7] Arc address
The arc address is data required only when the circular interpolation control or 3-axis helical interpolation control
is carried out.
• When carrying out circular interpolation with sub point designation, set the sub point (passing point) address
as the arc address.
• When carrying out circular interpolation with center point designation, set the center point address of the arc
as the arc address.
Circular interpolation with sub point designation
Sub point
(Address set with Da.7 )
Start point address (Address before starting positioning)
When the circular interpolation control or 3-axis helical interpolation control is not carried out, the value set in
"[Da.7] Arc address" will be invalid.
(a) Setting range
• The table below lists the control systems that require the setting of the arc address and the associated
setting ranges when "[Pr.1] Unit setting" is "mm". (With any control system excluded from the table below,
the arc address does not need to be set.)
[Da.2] setting value
ABS circular sub: 0DH
ABS circular right: 0FH
ABS circular left: 10H
INC circular sub: 0EH
INC circular right: 11H
INC circular left: 12H
ABS helical sub: 20H
ABS helical right: 22H
ABS helical left: 23H
INC helical sub: 21H
INC helical right: 24H
INC helical left: 25H
*1 Set an integer because the program cannot handle fractions. (The value will be converted properly within the system.)
*2 Note that the maximum radius that circular interpolation control is possible is 536870912, although the setting value can
be input within the range shown in the above table, as an arc address.
164
Setting value, setting range
Value set with program
End point address
(Address set with Da.6 )
Value set with GX Works2 (m)
■Set the address
-214748364.8 to 214748364.7
■Set the movement amount
-214748364.8 to 214748364.7
■Set the address
-214748364.8 to 214748364.7
■Set the movement amount
-214748364.8 to 214748364.7
Default value
0
Circular interpolation with center point designation
End point address
(Address set with Da.6 )
Start point address (Address before starting positioning)
Value set with program
■Set the address
-2147483648 to 2147483647
■Set the movement amount
*2
-2147483648 to 2147483647
■Set the address
-2147483648 to 2147483647
■Set the movement amount
*2
-2147483648 to 2147483647
Setting value buffer memory
address
Axis 1 Axis 2 Axis 3 Axis 4
2008 8008 14008 20008
2009 8009 14009 20009
Center point address
(Address set with Da.7 )
*1 -1
m)
(10
*2
*2