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HEIDENHAIN TNC 320 (340 551-01) User Manual

Page 216

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216

8 Programming: Cycles

8.2 Cy

cles f

o

r Dr

illing,

T

apping and Thr

ead Milling

Use the machine parameter suppressDepthErr to define
whether, if a positive depth is entered, the TNC should
output an error message (on) or not (off).

Danger of collision!

Keep in mind that the TNC reverses the calculation for pre-
positioning when a positive depth is entered. This
means that the tool moves at rapid traverse in the tool axis
at safety clearance below the workpiece surface!