Mitsubishi Electric MELSEC-Q Series - Central Point-Specified Circular Interpolation Control

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6 POSITIONING CONTROL
6.8 Central Point-Specified Circular Interpolation Control
Circular interpolation control by specification of the end point for circular interpolation
and arc central point is executed.
Central point-specified circular interpolation control uses ABS
and ABS (Absolute
data method) and INC
and INC (Incremental data method) servo instructions.
Servo
instruction
Positioning
method
Number of
control axes
Items set using MT Developer2
Speed
change
Common Arc Parameter block Others
Parameter block No. Axis Address/travel value Command speed Dwell time M-code Torque limit value Auxiliary point Radius Central point Interpolation control unit Speed limit value Acceleration time Deceleration time Rapid Stop deceleration time Torque limit value Deceleration processing on stop input Allowable error range for circular interpolation S-curve ratio Advanced S-curve acceleration/deceleration Cancel WAIT-ON/OFF
ABS
Absolute
2
Valid
ABS
INC
Incremental
INC
: Must be set
: Set if required
[Control details]
Details for the servo instructions are shown in the table below.
Instruction
Rotation direction of
the servo motors
Maximum controllable
angle of arc
Positioning path
ABS
Clockwise
0° <
< 360°
Positioning path
Start point End point
Central point
0 < <360
INC
ABS
Counter clockwise
Central point
Start point End point
Positioning path
0 < <360
INC