Siemens SINUMERIK 840D sl Function Manual page 14

Table of contents
5.4.5 Direction-dependent leadscrew error compensation............................................................297
5.4.5.1 Description of functions........................................................................................................297
5.4.5.2 Commissioning.....................................................................................................................298
5.4.5.3 Example...............................................................................................................................301
5.4.6 Cylinder error compensation................................................................................................304
5.4.6.1 Function...............................................................................................................................304
5.4.6.2 Commissioning.....................................................................................................................305
5.4.6.3 Examples.............................................................................................................................308
5.4.7 Supplementary conditions....................................................................................................312
5.5 Dynamic feedforward control (following error compensation)..............................................313
5.5.1 General properties...............................................................................................................313
5.5.2 Speed feedforward control...................................................................................................315
5.5.3 Torque feedforward control..................................................................................................317
5.5.4 Dynamic response adaptation..............................................................................................318
5.5.5 Forward feed control for command- and PLC axes.............................................................319
5.5.6 Secondary conditions...........................................................................................................320
5.6 Friction compensation overview...........................................................................................321
5.7 Friction compensation with a constant compensation value................................................322
5.7.1 Description of functions........................................................................................................322
5.7.2 Commissioning.....................................................................................................................323
5.7.2.1 Circularity test......................................................................................................................324
5.7.3 Supplementary conditions....................................................................................................328
5.8 Friction compensation with adaptive characteristic..............................................................328
5.8.1 Description of functions........................................................................................................328
5.8.2 commissioning.....................................................................................................................329
5.8.3 Supplementary conditions....................................................................................................331
5.9 Friction compensation with adaptive characteristics............................................................331
5.9.1 Description of the function....................................................................................................331
5.9.2 Commissioning.....................................................................................................................333
5.9.2.1 Activating the function..........................................................................................................333
5.9.2.2 Commissioning functions of the SINUMERIK Operate user interface.................................334
5.9.2.3 Parameterization of the acceleration at the characteristic interpolation points....................336
5.9.2.4 Velocity setpoint pulse.........................................................................................................338
5.9.2.5 Torque setpoint pulse...........................................................................................................340
5.10 Compensation functions for suspended axes......................................................................344
5.10.1 Electronic counterweight......................................................................................................344
5.10.2 Special function: Reboot delay.............................................................................................345
5.11 Data lists..............................................................................................................................347
5.11.1 Machine data........................................................................................................................347
5.11.1.1 General machine data..........................................................................................................347
5.11.1.2 Channelspecific machine data.............................................................................................347
5.11.1.3 Axis/spindlespecific machine data.......................................................................................348
5.11.2 Setting data..........................................................................................................................349
5.11.2.1 General setting data.............................................................................................................349
5.11.2.2 Axis/spindle-specific setting data.........................................................................................349
5.11.3 Signals.................................................................................................................................349
5.11.3.1 Signals from NC...................................................................................................................349
5.11.3.2 Signals from mode group.....................................................................................................349
5.11.3.3 Signals from channel............................................................................................................349
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Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions