Mitsubishi Electric A173UHCPU Programming Manual

7. POSITIONING CONTROL
7 − 57
7.11 Fixed-Pitch Feed Control Using 3-Axes Linear Interpolation
Fixed-pitch feed control using 3-axes linear interpolation from the current stop
position with the 3-axes designated in the sequence program positioning
commands.
Fixed-pitch feed control using 3-axes linear interpolation uses the FEED-3 servo
instruction.
Items Set by Peripherals
Common Arc Parameter Block Others
Servo
Instruction
Positioning
Method
Number of
Controllable
Axes
Parameter Block No. Axis Address/Travel Value Commanded Speed Dwell Time M-Code Torque Limit Value Auxiliary Point Radius Center Point 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 Cancel Start Speed Change
FEED-3
Incremental 3 ∆ !!! ∆∆ ∆∆∆∆∆∆∆ ∆∆∆OK
! : Must be set
∆ : Set if required
[Control Details]
(1) Positioning control from the current stop position (0) to the position which is the
resultant of the designated travel directions and travel values of the respective
axes.
(2) The travel direction is designated by the sign of the travel value, as follows:
• Positive travel value ..........forward direction (increased address)
• Negative travel value.........reverse direction (decreased address)
V
t
X-axis
travel value
Z-axis
travel value
Operation timingPositioing direction
Forward direction
Forward
direction
Reverse
direction
: indicates set data
SVST
instruction
Fixed-pitch feed using
FEED-3 instruction
Commanded
speed
Reverse
direction
Reverse
direction
Y-axis
travel value
Forward
direction
Commanded
speed
Fig.7.25 Fixed-Pitch Feed Control Using 3-Axes Linear Interpolation

Mitsubishi Electric A173UHCPU Specifications

General

Brand	Mitsubishi Electric
Model	A173UHCPU
Category	Control Unit
Language	English