Siemens SINUMERIK Series Function Manual

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

S3: Synchronous spindle13.1 Brief descriptionExtended Functions710 Function Manual, 03/2013, 6FC5397-1BP40-3BA1Change protection for coupling characteristicsThe channel-specific MD21340 $MC_COUPLE_IS_WRITE_PROT_1 is used to definewhether or not the configured coupling parameters Transformation ratio, Type of couplingand Block change response can be altered by the NC part program:0: Coupling parameters can be altered by the NC part program via command COUPDEF1: Coupling parameters cannot be altered by the NC part program. Attempts to makechanges will be rejected with an alarm message.Superimposed motionIn synchronous operation, the synchronous spindle copies the movement of the leadingspindle in accordance with the programmed transformation ratio.At the same time, the synchronous spindle can also be traversed with overlay so that the LSand FS can operate at a specific angular position in relation to one another.The overlaid traversing movement of the FS can be initiated in various ways:● Programmable position offset of FS for AUTOMATIC and MDA:– The COUPON and SPOS language commands can be used for active synchronousoperation to change the position reference between FS and LS (see Section"Selecting synchronous mode for a part program (Page 712)").● Manual position offset of FS:– In JOG (JOG continuous or JOG incremental) modeSuperimposition of FS using the handwheel or with plus or minus traversing keyswhen synchronous operation is active.– In AUTOMATIC and MDA modesSuperimposition of FS with handwheel using DRF offsetAs soon as the FS executes the overlaid traversing movement, IS "Overlaid movement"(DB31, ... DBX98.4) is set to the 1 signal.The overlaid movement is executed optimally in terms of time at the maximum possible FSspeed with COUPON. With an offset change by means of SPOS, the positioning velocity can bespecified with FA[Sn] and manipulated by an override (can be selected through IS "Feedrateoverride valid for spindle" DB31, ... DBX17.0).NoteFor more information about specifying the position speed with FA[Sn]:References:Function Manual, Basic Functions; Spindles (S1), "Spindle modes, positioning operations"section