Programming Motion Commands
4.15 Thread cutting with constant lead (G33)
Fundamentals
Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
4-55
Parameters
DITS Thread run-in path
DITE Thread run-out path
Value Specification of the run-in and run-out path: -1.0,...n
Note
Only paths, and not positions, are programmed with DITS and DITE.
Machine manufacturer
The DITS and DITE commands are related to the setting data SD 42010:
THREAD_RAMP_DISP[0,1], in which the programmed paths are written. If no run-
in/deceleration path is programmed before or in the first thread block, the value is
determined by the setting in SD 42010, see:
References: /FB/Functional description, V1 Feeds.
Example
N...
N40 G90 G0 Z100 X10 SOFT M3 S500
N50 G33 Z50 K5 SF=180 DITS=1 DITE=3 ;Start of corner rounding with Z=53
N60 G0 X20
Description
If the run-in and/or run-out path is very short, the acceleration of the thread axis is higher
than the configured value. This causes an acceleration overload on the axis.
In this case, alarm 22280 "Programmed run-in path too short" is output for the thread run-in
(if configured in MD 11411: ENABLE_ALARM_MASK). The alarm is purely for information
and has no effect on parts program execution.
MD 10710: PROG_SD_RESET_SAVE_TAB is used to set the value written by the parts
program into the corresponding setting data on RESET. The values are therefore retained
after power off/on.
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