5 POSITIONING CONTROL
5.8 Central Point-Specified Circular Interpolation Control
291
5
5.8
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.
: Must be set,
: Set if required
*1 Only when the reference axis speed is specified
Processing details
Details for the servo instructions are shown in the table below.
Instruction
Rotation direction of the
servomotors
Maximum controllable angle of arc
Positioning path
ABS Clockwise
0
<
< 360
INC
ABS Counter
clockwise
INC
Positioning data set in servo instructions
Common
Servo
instruction
Positioning
method
Number
of
control
axes
Arc
OSC
Parameter block
Others
Parameter block No.
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
Bias speed at start
Repeat condition
Program No.
Command speed (Continuous trajectory)
Skip
FIN acceleration/deceleration
WAIT-ON/OFF
Fixed position stop
Axis
Address/travel value
Command speed
Dwell time
M-code
Torque limit value
Auxiliary point
Radius
Central point
Number of pitches
Starting angle
Amplitude
Frequency
Interpolation control unit
Speed limit value
Reference axis No.
*1
Fixed position stop acceleration/deceleration time
Absolute
Incremental
2
©
©
©
© © © © © © © © ©
¨ ¨ ¨
¨
© ©
INC
ABS
INC
ABS
Positioning path
Start point
0
°
<
θ
< 360
°
End point
Central point
Central point
Start point
End point
Positioning path
0
°
<
θ
< 360
°
Summary of Contents for MELSEC iQ-R16MTCPU
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