Siemens 810T ªPRESETº mode, ªTEACH INº/ªPLAYBACKº mode, Special cases ± ªDRF/handwheelº active

3 Operating Sequences 09.91

3.1.9 TRANSMIT coordinate transformation

ªPRESETº mode:

The actual value for a fictitious axis can only be set while the transformation (G131) is select- ed. It only makes sense to use the function if the transformation remain active after a RESET. A PRESET offset with @435 is possible for fictitious axes, independent of those for real axes (see Part 2, ªProgrammingº, Section 11.7).

The actual value memory and therefore also the actual value display refer to the machine zero ªMº after reference point approach. The offset entered in ªPRESETº mode is calculated into the actual value and displayed.

Independent of the value for the 1st real axis during TRANSMIT (radius axis) the origin of the fictitious coordinate system coincides with the machine zero when the transformation is selected (PRESET offset is not taken into account).

Monitoring of the programmed feedrate does not function correctly for input of PRESET offsets for fictitious axes.

ªTEACH INº/ªPLAYBACKº mode:

ªTEACH INº is a block program mode and is therefore also possible in the TRANSMIT function.

There are two applications of the ªPLAYBACKº mode:

±If the transformation is deselected (G130), only real axis positions are transferred into the part program.

±If the transformation is selected (G131), axis positions of the real (not belonging to the grouping) or of the fictitious axes can be transferred into the part program.

Special cases:

± ªDRF/handwheelº active

The transformation must be selected before ªDRF/handwheelº can be activated for the fictitio- us system. Otherwise no handwheels must be enabled for the real axes of the transformation grouping.

± Follow-up mode

During follow-up mode for real axes, the values for the fictitious axes are not prepared. Data preparation in the NC begins with the changeover of the axes from follow-up mode to closed- loop control.

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SINUMERIK 810T, GA3 (BN)