To Next Page

To Previous Page

Programming Basics

1.2 Basics of feed function

04.07

1-21

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

Note

1. If F1--digit command is activated by setting MD $MC_FIXED_FEE-

DRATE_F1_F9_ON = TRUE and F1 to F9 should not be used, be sure to pro-

gram the feedrate F as a REAL value. For example, not F1 but F 1.0 for 1 mm/

min.

2. If “F0” is specified, it is switched to rapid traverse mode (G00) automatically.

Subsequently, G01 needs to be specified in order to use F1--digit command.

3. When the DRY RUN switch is ON, feed commands are all executed at the fee-

drate set for the dry run operation.

4. The feed override function is invalid for the feedrate selected by the F1-digit

command.

5. The feedrate set for setting data is retained in memory if the power is turned

OFF.

6. In a macro call using G65/G66, the value commanded with address F is always

stored in system varible $C_F, meaning that numeral values 1 to 9 will stored.

7. If F1--digit command is used in a machining program containing a cycle call

(G81 to G87), the feedrates are read from the corresponding setting data and

stored into variable $C_F.

Example

$SC_EXTERN_FIXED_FEEDRATE_F1_9[0] = 1500.0

$SC_EXTERN_FIXED_FEEDRATE_F1_9[1] = 550.0

N10 X10 Y10 Z10 F0 G94 ; Positioning, rapid traverse

N20 G01 X150 Y30 F1 ; feedrate 1500 mm/min active

N30 Z0 F2 ; feedrate 550 mm/min active

N40 Z10 F0 ; Positioning, rapid traverse

1.2.4 Feed per minute function (G94)

When G94 is designated, a feedrate specified following address F is executed in

units of “mm (inch)/min”.

1.2.5 Inverse time feed (G93)

When G93 is designated, a feedrate specified following address F is executed in

units of “1/min”. G93 is a modal G code.

Example

N10 G93 G1 X100 F2 ;

i.e. the programmed distance will be moved within half a minute.

Siemens SINUMERIK 802D sl Programming Manual

Other manuals for Siemens SINUMERIK 802D sl