HEIDENHAIN TNC 640 User Manual page 93

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Fixed Cycles: Drilling | UNIVERSAL DRILLING (Cycle 203, DIN/ISO: G203)

Q211 Dwell time at the depth?: Time in seconds

that the tool remains at the hole bottom. Input

range 0 to 3600.0000

Q208 Feed rate for retraction?: Traverse speed

of tool when moving out of the hole in mm/min. If

you enter Q208 = 0, the TNC retracts the tool at

the feed rate Q206. Input range 0 to 99999.999,

alternatively Fmax, FAUTO

Q256 Retract dist. for chip breaking?

(incremental): Value by which the TNC retracts

the tool during chip breaking. Input range 0.000 to

Q395 Diameter as reference (0/1)?: Select

whether the entered depth is referenced to the

tool tip or the cylindrical part of the tool. If the TNC

is to reference the depth to the cylindrical part

of the tool, the point angle of the tool must be

defined in the T ANGLE column of the tool table

= Depth referenced to the tool tip

= Depth referenced to the cylindrical part of the

HEIDENHAIN | User's manual for cycle programming | 10/2017