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6 POSITIONING CONTROL
6.11 Fixed-Pitch Feed Control Using 2 Axes Linear Interpolation
Fixed-pitch feed control using 2 axes linear interpolation from the current stop position
with the specified 2 axes.
Fixed-pitch feed control using 2 axes linear interpolation uses the FEED-2 servo
instruction.
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
FEED-2
Incremental 2
Valid
: Must be set
: Set if required
[Control details]
(1) Positioning control from the current stop position "0" to the position which
combined travel direction and travel value specified with each axis is executed.
(2) The travel direction for each axis is set by the sign (+/ -) of the travel value for
each axis, as follows:
• Positive travel value .............Positioning control to forward direction
(Address increase direction)
• Negative travel value............Positioning control to reverse direction
(Address decrease direction)
0
Current stop position
Reverse
direction
Forward direction
Reverse direction
Y-axis
travel value
X-axis travel value
Positioning direction
Forward
direction
Operation timing
V
t
Fixed-pitch feed by FEED-2 instruction
Command speed
Servo program start
: Indicates setting data
(Note)
Fig.6.24 Fixed-pitch feed control using 2 axes linear interpolation
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