Siemens SINUMERIK 840C Installation Instructions Manual page 272

08.96
NC MD
5003
Default value:
Bit 7
Bit 6
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Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
More user manuals on
7 6
Working
No de-
area
celeration
limitation dependent
at limit
in force in
switch
JOG mode G91/G90
0000 0100
No deceleration on reaching the software limit switch. When this bit is set, braking
does not follow the acceleration/deceleration curve; only the following error is
suppressed. The limit switch is not overrun to any great extent (also see NC MD
1100*).
Active: NC Stop
Note
In the case of interpolating axes, all axes are stopped when the range limit of an
axis is reached. Stopping without a contour violation, however, is guaranteed only
when bit 7 of MD 5003 is not set (no deceleration at limit switch), i.e. deceleration
takes place over the acceleration ramp.
V
Bit 7=0
Speed specified by interpolator
Actual axis speed
The working area limitation is also effective in JOG mode. In addition to the
software limit switches, the working area can therefore be limited in JOG mode,
thereby better safeguarding the machine against unintentional travel. However,
since a working area limitation is a software limitation, proper operation can only be
ensured following reference point approach.
Active: NC Stop
ManualsBase.com
6 NC Machine Data (NC MD), NC Setting Data (NC SD)
Bit No.
5 4 3
Polar
Interpol. Do not clear
coord.
params PRESET
angle de-
OFFSET on
pendent
on POWER
on
ON
G91/G90
V
Bit 7=1
t
6FC5197- AA50
6.6.1 General MD bits (general bits)
2 1 0
Internal No NC
Auxiliary
STOP in
WAIT mark
function
dwell block
synchroni-
output
G04S.../G1
zation (as
before
4/G24 (as
from SW
from SW
travel
5.6)
5.4)
t
6–87