Siemens SINUMERIK 808D Parameter Manual

28530 MM_PATH_VELO_SEGMENTS C02 A2, B1
- Number of memory elements for path velocity limitation DWORD PowerOn
-
808d-me42 - 0, 0, 0, 0, 0, 0, 0, 0... 0 100 0/0 S
808d-me62 - 5 0 100 1/1 M
808d-te42 - 0, 0, 0, 0, 0, 0, 0, 0... 0 100 0/0 S
808d-te62 - 0, 0, 0, 0, 0, 0, 0, 0... 0 100 0/0 S
808d-mte40 - 0, 0, 0, 0, 0, 0, 0, 0... 0 100 0/0 S
808d-mte60 - 0, 0, 0, 0, 0, 0, 0, 0... 0 100 0/0 S
Description: Number of memory elements available for limiting the path velocity and changing it in
the block.
0 : Each block is limited by a maximum path velocity.
> 0 : If required, a profile of the permissible path velocity
; and its modification options is generated and monitored
; in the block.
; This results in a smoother axis velocity progression and
; a shorter travel time.
; MD28530 $MC_MM_PATH_VELO_SEGMENTS defines the average
; number of segments available in the block.
; The necessary setting essentially depends
; on the requirements.
The following values are recommended:
3: for G643 and G644, if only geometry axes are traversed
5: for G643 and G644, if geometry and rotary axes are traversed
5: for COMPCAD
5: for dyn. transformation
8: for COMPSURF
A value that is too low may lead to additional velocity limitations if a sufficient
number of blocks cannot be made available for interpolation.
MD28530 $MC_MM_PATH_VELO_SEGMENTS additionally increases the memory requirement of
dyn. Look Ahead. Values higher than 8 are only practical in exceptional cases.
3 ... 8 :
Recommended setting.
28533 MM_LOOKAH_FFORM_UNITS C02 -
- Memory for extended LookAhead DWORD PowerOn
-
808d-me42 - 0, 0, 0, 0, 0, 0, 0, 0... 0 100000 0/0 S
808d-me62 - 18 0 100000 1/1 M
808d-te42 - 0, 0, 0, 0, 0, 0, 0, 0... 0 100000 0/0 S
808d-te62 - 0, 0, 0, 0, 0, 0, 0, 0... 0 100000 0/0 S
808d-mte40 - 0, 0, 0, 0, 0, 0, 0, 0... 0 100000 0/0 S
808d-mte60 - 0, 0, 0, 0, 0, 0, 0, 0... 0 100000 0/0 S
Description: The machine data is used to configure the work memory for extended LookAhead.
The MD scales the value defined internally through MD28060 $MC_MM_IPO_BUFFER_SIZE,
MD28520 $MC_MM_MAX_AXISPOLY_PER_BLOCK, MD28530 $MC_MM_PATH_VELO_SEGMENTS, MD28535
$MC_MM_FEED_PROFILE_SEGMENTS, MD28540 $MC_MM_ARCLENGTH_SEGMENTS).
Its practical size depends on the part program, the block lengths, the axis dynamics,
and an active kinematic transformation.
Machine data
3.3 Channel-specific machine data
Parameter Manual
List Manual, 01/2017 219

Siemens SINUMERIK 808D Specifications

General

Brand	Siemens
Model	SINUMERIK 808D
Category	Control Unit
Language	English