Effect; Cycle Parameters - HEIDENHAIN TNC 640 User Manual

Cycles: Turning | RESET ROTARY COORDINATE SYSTEM
(Cycle 801, DIN/ISO: G801)

Effect

Cycle 801 resets the following settings you have programmed with
Cycle 800:
Precession angle Q497
Reverse tool Q498
If you have executed the eccentric turning function with Cycle
800, observe the following: Cycle 800 limits the maximum
permitted spindle speed during eccentric turning. This results from
a machine-dependent configuration (implemented by your machine
tool builder) and the size of the eccentricity. It is possible that
you programmed a speed limit with FUNCTION TURNDATA SMAX
before programming Cycle 800. If the value of this speed limit is
less than the speed limit calculated by Cycle 800, the lower value
is effective. To reset Cycle 800, program Cycle 801. This also resets
the speed limit set by the cycle. The speed limit is then effective
that you programmed with FUNCTION TURNDATA SMAX before
calling the cycle.
Cycle 801 does not orient the tool to the starting
position. If a tool was oriented with Cycle 800, it
remains in this position also after resetting.

Cycle parameters

Cycle 801 does not have a cycle parameter.
Finish the cycle input with the END key.
HEIDENHAIN | User's manual for cycle programming | 10/2017
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