Siemens SINUMERIK 840C Installation Instructions Manual page 375

6 NC Machine Data (NC MD), NC Setting Data (NC SD)
6.7.1 Axis-specific MD bits 2 (axial bits 2)
NC MD
1828*
NC MD 1828* bit 1:
Bit 1 Bit 1=1 Linear scale not available. Maximum traversing range of this axis is then + / -
Bit 1=0 Linear scale available. The traversing range of this axis does not have to be
Bit 0 Bit 0=1 Extended parameter set switchover
Bit 0=0 Gear stages/parameter set switchover as in SW 1 - 3
NC MD
1832*
(from
SW 6.3)
Bit 4 Bit 4=1 This axis is an actual value reading axis at the 2nd measuring system
Bit 4=0 This axis has unrestricted use of the 2nd measuring system connection (NC
Bit 3 Bit 3=1 This axis is an actual value reading axis at the 1st measuring system
Bit 3=0 This axis has unrestricted use of the 1st measuring system connection (NC
Bit 2 Bit 2=1 Multiple assignment of the 2nd measuring system connection of this axis (NC
Bit 2=0 Multiple assignment of the 2nd measuring system connection of this axis (NC
Bit 1 Bit 1=1 Multiple assignment of the 1st measuring system connection of this axis (NC
Bit 1=0 Multiple assignment of the 1st measuring system connection of this axis (NC
Bit 0 Bit 0=1 The new PT2 contour monitoring is activated even if 0 is set under NC MD
Bit 0=0 The existing contour monitoring is activated as long as 0 is set under NC MD
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This bit is only used for linear axes with ENDAT absolute encoders.
half of the maximum traversing range of the absolute encoder, symmetrical
around the zero position.
set symmetrically around the zero position. The maximum traversing range is
calculated to: + / - the traversing range of the absolute encoder/8* MD 1264*.
Parameter set switchover is only possible with the option bit.
Active: After Power On
7 6 5
connection (NC MD 1388*). The restrictions for reading axes therefore apply.
MD 1388*)
connection (NC MD 200*). The restrictions for reading axes therefore apply.
MD 200*).
MD 1388*) is permitted with digital drives. When using this measuring system
connection only one of these axes must not have a Bit 4 setting under MD
1832*. Bit 4 must be set on all others.
MD 1388*) is not permitted.
MD 200*) is permitted with digital drives. When using this measuring system
connection only one of these axes must not have a Bit 3 setting under MD
1832*. Bit 3 must be set on all others.
MD 200*) is not permitted.
3420*. By entering a compensation value between 1 and 600 under NC MD
3420*, the PT2 following error model will be calculated according to this
compensation value.
3420*. By entering a compensation value between 1 and 600 under NC MD
3420*, this will activate the improved PT1 contour monitoring.
Active: After Power On
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Bit No.
4 3 2
Bit No.
4 3 2
Actual value Actual value Multiple
reading axis reading axis assignment
2nd measur- 1st measur- 2nd measur-
ing system ing system ing system
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Siemens AG 1992 All Rights Reserved
01.99
1 0
Extended
Linear scale parameter
(as from set switch-
SW 6.3) over (as from
SW 4)
1 0
Multiple
PT2 contour
assignment
monitoring
1st measur-
active
ing system
6FC5197- AA50
SINUMERIK 840C (IA)