Cycles
2.4 Drilling cycles
Turning Part 2: Programming (Siemens instructions)
136 Programming and Operating Manual, 05/2012, 6FC5398-5DP10-0BA0
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
● Oriented spindle stop at the spindle position programmed under POSS
● Traverse retraction path in up to three axes with G0
● Retraction in the boring axis to the reference plane brought forward by the safety
clearance by using G0
● Retraction to the retraction plane with G0 (initial drilling position in both axes of the plane)
Explanation of the parameters
For an explanation of the parameters RTP, RFP, SDIS, DP, and DPR, refer to the topic
"
Drilling, centering - CYCLE81 (Page 112)".
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DTB (dwell time)
The dwell time to the final drilling depth (chip breakage) is programmed under DTB in
seconds.
SDIR (direction of rotation)
With this parameter, you determine the direction of rotation with which boring is performed in
the cycle. If values other than 3 or 4 (M3/M4) are generated, alarm 61102 "No spindle
direction programmed" is generated and the cycle is not executed.
RPA (retraction path along the 1st axis)
Use this parameter to define a retraction motion along the 1st axis (abscissa), which is
performed after reaching the final drilling depth and oriented spindle stop.
RPAP (retraction path along the boring axis)
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