M functions

The M functions M3, M4, M5, M19 and M40 are reserved in DIN66025 for the control of spindles. These M functions can be synchronised with an executing path motion. With M3, M4 and M5, synchronisation always takes place internally (speed reached) and optionally by the PLC additively.

Moreover, all freely available M functions can be output axis-specifically to a spindle.

For further details of M functions and PLC synchronisation, refer to the documentation [FCT-C1].

M function

Meaning

Channel parameters

M03

Endless clockwise spindle rotation

P-CHAN-00045

M04

Endless counter-clockwise spindle rotation

P-CHAN-00047

M05

Spindle stop

P-CHAN-00049

M19

Spindle positioning

P-CHAN-00043

M40–45

Gear speed selection for the main spindle

See [CHAN // section: Spindle gear change]