Detailed Description
2.1 Path feedrate F
Feeds (V1)
2-12 Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
SD42010
Only paths, and not positions, are programmed with DITS and DITE.
Setting data:
SD42010 THREAD_RAMP_DISP[0,1]
corresponds with the part program instructions and defines the following acceleration
response of the axis during thread cutting:
• SD42010 ≤ 0 to –1
Identical with previous response.
Starting/braking of the feedrate axis at configured acceleration rate.
Jerk according to current BRISK/SOFT programming.
• SD42010 = 0
Abrupt starting/braking of the feedrate axis on thread cutting.
• SD42010 ≥ 0
The thread run-up/deceleration distance is specified.
In order to avoid technology alarm 22280, the acceleration limits of the axis must be
taken into account for very small run-in/run-out paths.
Note
DITE acts at the end of the thread as a rounding clearance. This achieves a smooth
change in the axis movement.
Compatibility
Machine data:
MD20650 THREAD_START_IS_HARD
is omitted and replaced by:
SD42010 THREAD_RAMP_DISP[0]
or
SD42010 THREAD_RAMP_DISP[1].
The response of the new setting data at:
SD42010 THREAD_RAMP_DISP[0] = 0
or
SD42010 THREAD_RAMP_DISP[1] = 0
is identical with the previous machine data setting:
MD20650 THREAD_START_IS_HARD = 1.
The response at:
SD42010 THREAD_RAMP_DISP[0] = -1
or
SD42010 THREAD_RAMP_DISP[1] = -1
is identical with the previous machine data setting:
MD20650 THREAD_START_IS_HARD = 0
(default setting).
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