Siemens SINUMERIK 840D sl Function Manual

Also see for SINUMERIK 828D Turning: Diagnostic manual Function manual Equipment manual Programming manual Operating manual

● Positioning mode → Axis modeIf a spindle was stopped with orientation, the assigned axis name is used to program achange to axis mode. The gear step is retained.● Control mode → Axis modeSwitching from control mode to axis mode can be also achieved by the programming ofM70. In this case, a rotating spindle is decelerated in the same way as for M5, positioncontrol activated and the zero parameter set selected.● Axis mode → Control modeTo terminate axis mode, M3, M4 or M5 can be used to change to control mode. The lastprogrammed spindle speed (S value) is reactivated.● Axis mode → Oscillation modeTo terminate axis mode, M41 to M45 can be used to change to oscillation mode (only if theprogrammed gear step is not the same as the actual gear step). When the gear change iscomplete, the last programmed spindle speed (S value) and M5 (control mode) arereactivated.16.2.3 Control modeWhen open-loop control mode?The spindle is in open-loop control mode with the following functions:● Constant spindle speed:– S... M3/M4/M5 and G93, G94, G95, G97, G971– S... M3/M4/M5 and G33, G34, G35– S... M3/M4/M5 and G63● Constant cutting speed:– G96/G961 S... M3/M4/M5The spindle need not be synchronized.RequirementsA spindle position actual value encoder is absolutely essential for M3/M4/M5 in connectionwith:● Revolutional feedrate (G95)● Constant cutting speed (G96, G961, G97, G971)● Thread cutting (G33, G34, G35)● Tapping without compensating chuck (G331, G332)● Activate position control (SPCON, M70)S1: Spindles16.2 ModesBasic Functions1202 Function Manual, 01/2015, 6FC5397-0BP40-5BA2