Siemens SINUMERIK 840C - Manual (Page 318)

07.97 6 NC Machine Data (NC MD), NC Setting Data (NC SD)
6.6.2 Spindle-specific MD bits (spindle bits)
Partial setpoint
Partial actual value
Synchronism fine window
Block change on 1 signal
Block change on 0 signal
T
delay
t
V
FA
T
delay
delay (derived from the time
constant of the parallel model)
7 6 5 4 3 2 1 0
Bit No.
NC MD
527*
Include tool
length
compen-
sation
Include
program-
med ZO
G58...G59
Include
external ZO
Include
settable ZO
G54...G57
Include
DRF and
preset
Ref. system
GI positions
Active: Immediately
The bits below are defined for the following spindles. They do not affect the following spindles,
only the active leading axes which belong the to GI grouping defined by the following spindle.
The above values are included when calculating the synchronous position (G403).
Bit 5 Bit 5=1 Include tool length compensations for GI position calculation
Bit 5=0 Do not include tool length compensations
Circle radius compensations are never included in calculations.
Bit 4 Bit 4=1 Include programmable ZO offset (G58...G59) for GI position calculations
Bit 4=0 Do not include programmable ZO offset
Bit 3 Bit 3=1 Include external ZO for GI position calculations
Bit 3=0 Do not include external ZO
Bit 2 Bit 2=1 Include ZO (G54...G57) for GI position calculations
Bit 2=0 Do not include ZO (G54...G57)
Bit 1 Bit 1=1 Include DRF and preset for GI position calculations
Bit 1=0 Do not include DRF and preset
Bit 0 Reference system GI positions
Bit 0=1 The positions have been entered in the workpiece system; include offsets
as for bits 2..5 in calculation
Bit 0=0 Positions have been entered in machine system; do not include any offsets
in calculation
Following axis/following spindle-specific machine data bits
7 6 5 4 3 2 1 0
Bit No.
NC MD
528*
Switch over
output bit 7
on
emergency
retraction
Switch over
output bit 6
on
emergency
retraction
Switch over
output bit 5
on
emergency
retraction
Switch over
output bit 4
on
emergency
retraction
Switch over
output bit 3
on
emergency
retraction
Switch over
output bit 2
on
emergency
retraction
Switch over
output bit 1
on
emergency
retraction
Switch over
output bit 0
on
emergency
retraction
© Siemens AG 1992 All Rights Reserved 6FC5197- AA50 6–133
SINUMERIK 840C (IA)