Detailed description
2.1 Path feedrate F
Basic logic functions: Feeds (V1)
16
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Spindle speed limitation with G96, G961
For the function "Constant cutting rate", in setting data:
SD43230 $SA_SPIND_MAX_VELO_LIMS
(spindle speed limitation with
G96/G961
)
and in the part program (for the master spindle) with the programming command
LIMS
, a
maximum spindle speed can be set.
The most recently changed value (
LIMS
or SD) is active.
LIMS
is effective with
G96
,
G961
,
G97
and can be specified on up to four speed limitations in
the part program in one block. Spindle number Sn=1, 2, 3, or 4 of the master spindle that is
possible in the particular instance can be programmed in part progam instruction LM[Sn].
Note
When the block is loaded in the main run, all programmed values are transferred to to setting
data SD43230 $SA_SPIND_MAX_VELO_LIMS.
The speed limit set with
LIMS
remains stored after the control is switched off, depending on
the machine data:
MD10710 PROG_SD_RESET_SAVE_TAB[n] (setting data to be updated)
.
When
G96
,
G961
,
G97
are reactivated, this spindle speed limitation is also activated.
The maximum permissible spindle speed defined by means of
G26
or setting data:
SD43220 $SA_SPIND_MAX_VELO_G26 (maximum spindle speed)
, cannot be exceeded.
In the event of incorrect programming that would cause one of the speed limits (
G26
or
SD43220 $SA_SPIND_MAX_VELO_G26) to be exceeded, the "Programmed speed too
high" interface signal (DB31, ... DBX83.1) is set.
In order to ensure smooth rotation with large part diameters, the spindle speed is not
permitted to fall below a minimum level.
This speed is defined using setting data:
SD43210 $SA_SPIND_MIN_VELO_G25 (minimum spindle speed)
and can be set for each gear step with the machine data:
MD35140 $MA_GEAR_STEP_MIN_VELO_LIMIT (minimum velocity of the gear step)
.
The minimum spindle speed can be changed in the part program with
G25
. In the event of
programming that would mean one of the spindle limits (
G25
or SD43220
$SA_SPIND_MAX_VELO_G25) is not reached, the "Set speed too low" interface signal
(DB31, ... DBX83.2) is set.
Summary of Contents for SINUMERIK 840D sl
Page 282: ...Index Basic logic functions Acceleration B2 64 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 388: ...Basic logic functions Travel to fixed stop F1 Function Manual 11 2006 6FC5397 0BP10 2BA0 52 ...
Page 962: ...Index Basic logic functions Emergency Stop N2 20 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1704: ...Constraints Basic logic functions Spindles S1 94 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1716: ...Index Basic logic functions Spindles S1 106 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1996: ...Index Basic logic functions Tool Offset W1 208 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2150: ...Table of contents Basic logic functions Appendix 4 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2184: ...Glossary Basic logic functions Appendix 38 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...