6 POSITIONING CONTROL

Helical interpolation specified methods for constant-speed control are shown below.

Servo instruction

Positioning method

Circular interpolation specified method

ABH

Absolute

Radius-specified method

INH

Incremental

less than CW180°

ABH

Absolute

Radius-specified method

INH

Incremental

less than CCW180°

ABH

Absolute

Radius-specified method

INH

Incremental

CW180° or more.

ABH

Absolute

Radius-specified method

INH

Incremental

CCW180° or more.

ABH

Absolute

Central point-specified method CW

INH

Incremental

 

ABH

Absolute

Central point-specified method CCW

INH

Incremental

 

ABH

Absolute

Auxiliary point-specified method

INH

Incremental

 

[Program]

(1) Servo program

Servo program for which helical interpolation specified pass point for constant- speed control is shown below.

<K 510>

 

 

 

 

 

 

 

 

CPSTART4

 

 

 

Axis

1

 

 

Axis

2

 

 

Axis

3

 

 

Speed

 

 

10000

ABS-3

 

 

3000

Axis

1,

Axis

2,

4000

Axis

3,

4000

ABH

 

 

 

Axis

1,

5000

Axis

2,

3500

Linear axis

3,

-4000

Number of pitches

-6000

Radius

 

 

1000

ABS-3

 

 

 

Axis

1,

5000

Axis

2,

3500

Axis

3,

3000

CPEND

Constant-speed control

 

 

 

 

 

 

Axis used . . . Axis 1, Axis 2, Axis 3, Axis 4

 

 

 

 

 

 

 

 

 

 

 

 

 

Positioning speed . . . 10000

 

 

 

 

 

 

 

 

 

 

 

 

3 axes linear interpolation control (P1)

 

 

 

 

 

 

 

 

 

 

 

 

Positioning address

Axis 1 . . . 3000

 

 

 

 

 

 

 

Axis 2 . . . 4000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Axis 3 . . . 4000

 

 

 

 

 

 

 

 

 

 

 

 

 

3 axes helical interpolation control (P2)

 

 

 

 

 

 

 

 

 

 

 

 

 

Axis 1 . . . . . . . . . . .

5000

 

 

 

 

 

 

Positioning address

Axis 2 . . . . . . . . . . .

3500

 

 

 

 

 

 

Axis 3 . . . . . . . . . . -4000

 

 

 

 

 

 

 

 

 

 

 

 

 

Number of pitches . -6000 Radius . . . . . . . . . . . 1000

3 axes linear interpolation control (P3)

 

 

 

 

 

Positioning address

Axis 1 . . . 5000

 

 

 

 

 

Axis 2 . . . 3500

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Axis 3 . . . 3000

 

 

 

 

 

 

 

 

 

 

End constant-speed control

 

 

 

 

Control with the following speed.

For linear/circular interpolation: Combined-speed for number of interpolation axes. For helical interpolation: 2 axes combined-speed for circular interpolation.

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