HEIDENHAIN iTNC 530 (340 49x-05) Pilot - Manual (Page 106)

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Definin
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Machining Operations
Unit 22 Fine Roughing
With the fine roughing unit you can use a smaller tool to rework a contour
pocket that has been roughed-out with unit 122. In this step, smarT.NC
machines only the places the previous tool did not reach.
Parameters on the overview form:
 T : Tool number or name (switchable via soft key)
 S : Spindle speed [rpm] or cutting speed [m/min or ipm]
 F: Feed rate for plunging [mm/min], FU [mm/rev] or FZ [mm/tooth]
 F : Feed rate for plunging [mm/min] or FU [mm/rev] or FZ [mm/tooth]
 Coarse roughing tool: Number or name of the tool (switchable via
soft key) with which you have coarse-roughed the contour.
 Plunging depth : Infeed per cut
Additional parameters on the tool detail form:
 DL : Delta length for tool T
 DR : Delta radius for tool T
 DR2 : Delta radius 2 (corner radius) for tool T
 M function : Any miscellaneous function M
 Spindle : Direction of spindle rotation. As a default, smarT.NC sets M3
 Tool preselect : If needed, this is the number of the next tool for faster
tool change (machine-dependent)