Siemens SINUMERIK 840D sl Function Manual

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

S3: Synchronous spindle14.4 Special features of synchronous modeExtended Functions904 Function Manual, 09/2009, 6FC5397-1BP20-0BA0Number of configurable spindles per channel:● Every axis in the channel can be configured as a spindle. The number of axes perchannel depends on the control version.Cross-channel setpoint coupling and optional number of following spindles in optionalchannels of an NCU:● Cross-channel synchronous spindle couplings can be implemented with no additionalrestrictions for DV, AV, and VV.● Any number of following spindles, corresponding to the number of all spindles minus onespindle for the master, in any channels on an NCU can be coupled to one leadingspindle. The real time CPU time needed may possibly also impact on the number offollowing spindles.Start synchronous mode using ASUBASUBs (activation of asynchronous subprograms) processed by the PLC can be used toactivate or terminate synchronous mode at any chosen time in the AUTOMATIC or MDAmodes.References:/FB1/ Function Manual, Basic Functions, Mode Group, Channel, Program Operation, ResetResponse (K1)Response to alarmsIf alarms occur (e.g. servo alarms) during the synchronous operation, with which the servoenable is cancelled internally in the control and follow-up is active, the subsequent responseis as if the IS "Servo enable" (DB31, ... DBX2.1) had been removed by the PLC (and IS"Follow-up mode" (DB31, ... DBX1.4) is set), see Section "Influence on synchronousoperation via PLC interface".IS "Re-synchronization" (DB31, ... DBX31.4) can be used to reproduce the programmedoffset, see Section "Reproduce synchronism of following spindle".