Cycles
2.4 Drilling cycles
Turning Part 2: Programming (Siemens instructions)
142 Programming and Operating Manual, 05/2012, 6FC5398-5DP10-0BA0
2.4.12 Reaming 2 - CYCLE89
Programming
CYCLE89 (RTP, RFP, SDIS, DP, DPR, DTB)
Parameters
parameters Data type Description
RTP REAL Retraction plane (absolute)
RFP REAL Reference plane (absolute)
SDIS REAL Safety clearance (enter without sign)
DP REAL Final drilling depth (absolute)
DPR REAL Final drilling depth relative to the reference plane (enter without
sign)
DTB REAL Dwell time at final drilling depth (chip breakage)
Function
The tool drills at the programmed spindle speed and feedrate to the entered final drilling
depth. When the final drilling depth is reached, a dwell time can be programmed.
Sequence
Position reached prior to cycle start:
The drilling position is the position in the two axes of the selected plane.
The cycle creates the following sequence of motions:
● Approach of the reference plane brought forward by the safety clearance by using G0
● Traversing to final drilling depth with G1 and the feedrate programmed prior to the cycle
call
● Dwell time to final drilling depth
● Retraction up to the reference plane brought forward by the safety clearance using G1
and the same feedrate value
● Retraction to the retraction plane with G0