Siemens SINUMERIK 840C Installation Instructions Manual page 412

09.01
Units
The unit of the entered values is defined in bit 3 of MD 520*:
Bit 3 = 0: Unit
Bit 3 = 1: Unit
Note
The maximum spindle speed value is determined by the minimum of the following values:
• MD 403* to 410*
• MD 451*
• SD 401*
• SD 403*
Setting data bits
General bits
SD MD 7
Calc. of
L900 without
overtravel
safety
5000
compen-
distance of
sation
drilling axis
5001
SD 5000
Bit 2-0 Bit 2-0=0 Standard cycles up to UMS02
Bit 2-0=1 Standard cycles up to UMS03
Bit 7 Bit 7=1 Overtravel compensation functions
Bit 7=0 No calculation of overtravel compensation
SD 5001
Bit 2 Bit 2=1 The part program is either stored in the source workpiece or in workpiece
"STANDARD" or NCKTMP, depending on the setting in MD 5189 bit 3.
Bit 0 Bit 0=1 The actual-value display for axes (actual position) refers to the workpiece zero
and not to the machine zero (reference point)
Note on bit 0:
The display is deselected with mode group reset, it remains active after program end
(M02/M30).
Channel-specific bits
SD MD 7
540*
Bit 1=1: The workpiece selected in the channel is not loaded in NCK on POWER ON.
Only active in combination with MD 5025.7.
Bit 1=0: The workpiece selected in the channel is loaded in NCK on POWER ON. Only
active in combination with MD 5025.7.
Bit 0=1: Axis converter On
Bit 0=0: Axis converter Off
_______
1) Texts generated on the WS 800A NC workstation and stored in the User Memory Submodule.
©
Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
6 NC Machine Data (NC MD), NC Setting Data (NC SD)
rev/min
0.1 rev/min
"Maximum speed" per gear ratio
"Maximum chuck speed"
"Programmable spindle speed limitation with G96";
programmed with G92
"Programmable spindle speed limitation";
programmed with G26
Bit No.
6 5 4
Cycles L97
L99 active
with G620
1)
active
1)
active
Bit No.
6 5 4
6FC5197- AA50
6.12.1 NC setting data (NC SD)
3 2 1
Function ext. from UMS03 used
Drilling and
Turning
milling
cycles
patterns
Auto.
storage. of
PP on hard
disk (as from
SW 5)
3 2 1
Workp. not
loaded on
POWER ON
(from SW 6)
0
Drilling
cycles
Display
workpiece-
related ac-
tual value
system
0
Axis
converter
On/Off
6–227