Spindle Motions - Siemens SINUMERIK 828D Programming Manual

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Motion synchronous actions

10.4 Actions in synchronized actions

Moving the control zero of an axis

Program code

WHEN $AA_IM[a] >= 89.5 DO PRESETON(a4,10.5)

Spindle motions

Spindles can be positioned completely unsynchronized with respect to the part program from

synchronized actions. This type of programming is advisable for cyclic sequences or

operations that are strongly dependent on events.

If conflicting commands are issued for a spindle via simultaneously active synchronized

actions, the most recent spindle command takes priority.

Example of starting/stopping/positioning spindles

Program code

ID=1 EVERY $A_IN[1]==1 DO M3 S1000

ID=2 EVERY $A_IN[2]==1 DO SPOS=270

Example of setting the direction and speed of rotation/ positioning the spindle

Program code

ID=1 EVERY $A_IN[1]==1 DO M3 S300

ID=2 EVERY $A_IN[2]==1 DO M4 S500

ID=3 EVERY $A_IN[3]==1 DO S1000

ID=4 EVERY ($A_IN[4]==1) AND ($A_IN[1]==0) DO

Shift the control zero of the

axis a through 10.5 length units

(inch or mm) in the positive axis

Set the direction of rotation and

Position spindle

Set the direction of rotation and

Specify a new direction of

rotation and a new speed

Specify a new speed

Position spindle

Programming Manual, 07/2010, 6FC5398-2BP40-0BA0

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