Siemens SINUMERIK 808D User Manual page 171

Pa rameter D a ta type
DPR REAL
DTB REAL
SDR INT
SDAC INT
ENC INT
MPIT REAL
PST REAL
AXN INT
The definition of the 1st, 2nd, and 3rd axes depends upon the current plane selected.
1)
Fu n ction
The tool drills at the programmed spindle speed and feedrate to the entered final thread depth.
This cycle is used to program tapping with the compensating chuck:
● Without encoder
● With encoder
Se quence
Ta pping with compensating chuck without encoder
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:
● Approaching the position of safety distance relative to the reference plane with G0
● Tapping to the final drilling depth
● Dwell time at tapping depth (parameter DTB)
● Retraction to the reference plane brought forward by the safety clearance
● Retraction to the retraction plane with G0
Programming and Operating Manual (Milling)
6FC5398-4DP10-0BA6, 09/2017
D e scription
Final drilling depth relative to the reference plane (enter without sign)
Dwell time at final drilling depth (chip breakage)
Direction of rotation for retraction
Values: 0 (automatic direction reversal), 3 or 4 (for M3 or M4)
Direction of rotation after end of cycle
Values: 3, 4 or 5 (for M3, M4 or M5)
Tapping with/without encoder
Values: 0 = with encoder, 1 = without encoder
Thread lead as a thread size (signed):
Range of values 3 (for M3) to 48 (for M48)
Thread lead as a value (signed)
Range of values: 0.001 ... 2000.000 mm
Tool axis (values : 1 = 1st axis of the current plane; 2 = 2nd axis of the current plane; 3 =
1)
3rd axis of the current plane)
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