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Enhanced Level Commands

4.1 Program support functions (1)

04.07

4-97

SINUMERIK 802D sl/840D/840D sl/840Di/840Di sl/810D ISO Milling (PGM) -- 04.07 Edition

G98 (Return to initial level) G99 (Return to point R level)

Initial level

Point R level

Initial level

Fig. 4-4 Return point level (G98/G99)

Repetition

Specify the number of repeats in K in order to repeat the drilling for equally spaced

holes. K only becomes effective in the block where it is specified. Specifying the

first hole in absolute mode (G90) results in drilling at the same position. Therefore,

specify K in incremental mode (G91).

Comments

A cycle call remains selected until it is cancelled through the G codes G80, G00,

G01, G02, or G03, or through another cycle c all.

Within the machining cycles the data specified at address Z, R, P, and Q function

as self--retaining even after RESET operation. These data can only be changed by

reprogramming or are cancelled using the G codes G80, G00, G01, G02, or G03.

Symbols in figures

Subsequent sections explain the individual canned cycles. Figures in these

explanations use the following symbols:

Positioning (rapid traverse G00)

Cutting feed (linear interpolation G01)

Manual feed

Oriented spindle stop

(The spindle stops at a fixed rotation position)

Shift (rapid traverse G00)

Dwell

M19

Fig. 4-5 Symbols in figures

Siemens SINUMERIK 802D sl Programming Manual

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