HEIDENHAIN MANUALplus 620 91
2.6 Units—Predrilling in C axis
D Retraction at
0: Rapid traverse
1: Feed rate
V Feed rate reduction
0: Without reduction
1: At end of the hole
2: At start of the hole
3: At start and end of the hole
AB Spot drilling / through drilling length (distance for feed rate
reduction)
RB Return plane (diameter value)
Further forms: see page 46