Selca G89 Differentiated drilling fixed cycle (Only for S4000 Series CNCs)
Contents
Programming
G89 [X... Y...] Z... J... [I...] [K...] [Q...] [F...] [S...] [D9=1] [D10=...] [D14=...] [D15=...] [D16=...] [D17=...] [D18=...] [D19=...] [D20=...] [D21=...] [D22=...] [D23=...]
Parameters
| Parameter | Description |
|---|---|
| X,Y | plane hole coordinates. |
| Z | hole bottom plane. |
| J | hole starting plane. |
| I | depth increase for chip breakage. |
| Q | rapid return position at end of hole (Q=J if not programmed). |
| K | pause for chip breakage in tenths of a second (K=0 by default). |
| F | upper zone feed from J to D15. Last programmed F is used if in the G89 is not programmed. |
| S | upper zone spindle speed from J to D15. Last programmed S is used if in the G89 is not programmed. |
| D9=1 | never mind where the machine is, the cycle is executed in XY position, without to program XY (D9=0 by default). |
| D10= | rapid detachment value after each performed increase I (D10=0 by default). D10=0 K…, no detach, K pause every I mm. D10=… K…, D10 detach, K pause every I mm. D10=…K0, D10 mm detach without pausing K after I mm. D10=0 K0, equivalent to not programming I.. (cycle does not break chip). |
| D14= | incremental position from J after which pauses are made every Imm(if I is programmed). Normally the distance between J and part surface. (D14=0 if not programmed) |
| D15= | end of upper zone and start of intermediate zone absolute position. The zone between D15 and D18 (if D18 is programmed)or between D15 and Z is run with FD16 and SD17. The upper zone included between J and D15 is run at feed and speed programmed before G89. (D15=0 if not programmed). |
| D16= | feed used in intermediate zone, between D15 and D18 (if D18 is programmed) or between D15 and Z (if D18 is not programmed). |
| D17= | speed used in intermediate zone, between D15 and D18 (if D18 is programmed) or between D15 and Z (if D18 is not programmed). |
| D18= | start of lower zone absolute position. The zone between D18 and Z is run at FD19 and SD20. |
| D19= | feed used in lower zone between D18 and Z. |
| D20= | speed used in lower zone between D18 and Z. |
| D21= | detachment value in D15 and D18 positions for speed change (D21=1 if not programmed). |
| D22= | pause after D21 detach for spindle to speed up. D21=10 (1 sec) if not programmed. Detach and pause are skipped if only feed (not speed) is changed. |
| D23= | intermediate zone mode from D15 to D18 (D23=0 by default). D23=0 I increases, D10 detaches and possible K D23=1 middle zone run in rapid mode R. |
Enabled: until a G80 is programmed.
