HEIDENHAIN TNC 620 User Manual page 106

Hide thumbs Also See for TNC 620:

Table of Contents

Fixed Cycles: Tapping / Thread Milling

TAPPING WITH CHIP BREAKING (Cycle 209, DIN/ISO: G209,

software option 19)

RPM factor for retraction Q403: Factor by

which the TNC increases the spindle speed—

and therefore also the retraction feed rate—when

retracting from the drill hole. Input range 0.0001 to

10 Maximum increase to maximum speed of the

active gear range

Retracting after a program interruption

If you interrupt program run during thread cutting with the machine

stop button, the TNC will display the MANUAL OPERATION soft

key. If you press the MANUAL OPERATION key, you can retract the

tool under program control. Simply press the positive axis direction

button of the active spindle axis.

TNC 620 | User's Manual Cycle Programming | 3/2014