Detailed Description
2.1 Spindle modes
Spindles (S1)
2-8 Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
SPOS [n]=DC(.....)
Spindle positioning across the shortest path to an absolute position (0 to 359.999 degrees).
The positioning direction is determined either by the current direction of spindle rotation
(spindle rotating) or automatically by the control (spindle stationary).
SPOS[n]=.....
Identical functional sequence as SPOS [n]=DC(.....).
SPOS [n]=ACP(.....)
Approaches the position from the positive direction.
When positioning from a negative direction of rotation, the speed is decelerated to zero and
accelerated in the opposite direction to execute the positive approach.
SPOS [n]=ACN(....)
Approaches the position from the negative direction.
When positioning from a positive direction of rotation, the speed is decelerated to zero and
accelerated in the opposite direction to execute the negative approach.
MD20850
To achieve transparency of M19 and SPOS or SPOSA in respect of the response at the VDI
interface, the auxiliary function M19 is output to the VDI interface configured for SPOS and
SPOSA and activated by setting machine data:
MD20850 SPOS_TO_VDI = 1.
After activation, the minimum duration of an SPOS/SPOSA block is increased to the time for
output and acknowledgment of the auxiliary functions by the PLC.
M19 (DIN 66025)
M19 can be used to position the spindle.
The position and positioning approach mode are read from setting data:
SD43240 M19_SPOS
and
SD43250 M19_SPOSMODE.
The positioning options with M19 are identical to those of
SPOS = <approach mode> <position/path>.
M19 is output as an auxiliary function to the VDI interface as an alternative to M3, M4, M5, and
M70. The M19 block remains active in the interpolator for the duration of the positioning
motion (like SPOS).
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