6 POSITIONING CONTROL

6.10 1 Axis Fixed-Pitch Feed Control

Positioning control for specified axis of specified travel value from the current stop point.

Fixed-pitch feed control uses the FEED-1servo instruction.

 

 

 

 

 

 

 

 

 

Items are set in peripheral devices

 

 

 

 

 

 

Common

 

 

Arc

 

 

Parameter block

 

 

 

 

No.blockParameter

Axis

valueAddress/travel

speedCommand

timeDwell

code-M

valuelimitTorque

pointAuxiliary

Radius

pointCentral

unitsControl

valuelimitSpeed

timeAcceleration

timeDeceleration

timedecelerationstopRapid

valuelimitTorque

input

interpolation

Servo

Positioning

Number of

onprocessingDecelerationstop

circularforrangeerrorAllowable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

instruction

method

control axes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FEED-1

Incremental

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Others

Speed change

WAIT-ON/OFF

Cancel

S-curve ratio

Valid

: Must be set

: Set if required

[Control details]

(1)Positioning control for the specified travel value from the current stop position "0" is executed.

(2)The travel direction is set by the sign (+/ -) of the travel value, as follows:

•Positive travel value .............Positioning control to forward direction (Address increase direction)

•Negative travel value............Positioning control to reverse direction (Address decrease direction)

Positioning directionOperation timing

 

Current stop position

 

V

 

 

Fixed-pitch feed by FEED-1 instruction

 

 

 

Command speed

 

 

 

 

 

Reverse

 

 

 

 

Forward

 

 

 

 

 

direction

 

 

 

 

 

direction

 

 

 

 

t

Travel direction

 

 

Travel direction

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

for negative sign

 

 

for positive sign

 

 

 

 

Travel value

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Servo program start

(Note) : Indicates setting data

Fig.6.23 1 axis fixed-pitch feed control

POINT

Do not set the travel value to "0" for fixed-pitch feed control.

If the travel value is set to "0", fixed-pitch feed completion without fixed-pitch feed.

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