01.99 5 Parameters
© Siemens AG 1999 All Rights Reserved 6FC5198-6AA60-0BP1
SINUMERIK 840C, OEM Version for Windows (BA)
5-19
Here you can store the value for the variable increment. This value also
appears in the input field in JOG mode and can be edited there. The value is
modal.
This function reduces the wear on drives when thread cutting and allows the
speed to be kept more constant. The feed ramp-up time until synchronization is
reached with the running working spindle can be programmed with G92T ... or
by entering the T value in setting data 1.
5.3.6.3 Spindle setting data
With this softkey, you select the input menu for the spindle data. You can enter
the following data:
The spindle speed limitation is used to limit the spindle to the speed entered. It
can be modified in the program by means of G26 S... .
The programmed spindle speed limitation can be used in addition to the fixed
spindle speed limitation to reduce the spindle speed in the program using the
G92 function. The programmed spindle speed limitation is only active at a
constant cutting rate (G96). The value is entered in the setting data
automatically.
When M19 is programmed, positioning takes place at this angle (in degrees).
• With M19 S270 LF, the spindle is positioned to 270° and the angle entered.
• With M19 LF, the spindle is positioned to the angle entered in the setting
data.
When machining a multi-turn thread ("Extended thread package" option), a
separate start angle must be entered for each thread turn. This can be defined in
the setting data.
Increment for INC
ISNC variable (SD9)
Smoothing constant
for thread (SD1)
Spindle
data
Spindle speed
limitation (static)
(SD 403*)
Programmed spindle
speed limitation (G92)
(SD 401*)
Oriented spindle stop
(M19) (SD 402*)
Example:
Start angle G92A
(SD 204*)
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