Siemens SINUMERIK 808D Programming And Operating Manual

Cycles
2.4 Drilling cycles
Turning Part 2: Programming (Siemens instructions)
140 Programming and Operating Manual, 05/2012, 6FC5398-5DP10-0BA0
2.4.11 Drilling with stop 2 - CYCLE88
Programming
CYCLE88 (RTP, RFP, SDIS, DP, DPR, DTB, SDIR)
Parameters
Parameter 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)
SDIR INT Direction of rotation
Values: 3 (for M3), 4 (for M4)
Function
The tool drills at the programmed spindle speed and feedrate to the entered final drilling
depth. During boring pass 4, a dwell time, a spindle stop without orientation M5 and a
programmed stop M0 are generated when the final drilling depth is reached. Pressing
<CYCLE START> traverses the outward movement at rapid traverse until the retraction
plane is reached.
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 at final drilling depth
● Spindle and program stop with M5 M0. After program stop, press the <CYCLE START>
key.
● Retraction to the retraction plane with G0

Siemens SINUMERIK 808D Specifications

General

Brand	Siemens
Model	SINUMERIK 808D
Category	Control Unit
Language	English