Siemens SINUMERIK 840C Installation Instructions Manual page 781

12 Functional Descriptions
12.1.2 Functional description
MD No.
6000
6001
6002
6248
6249
- =
+ =
No =
Yes =
Since 4 compensation points are available for each machine data, it is specified in the control
that only the point on the far righthand side (bits 0, 1) can be defined as the reference point.
Example
• Reference point is to lie on compensation point 793
• MD offset 198 = MD 6198
As stated above, the reference point determines the compensation point at which leadscrew
error compensation is activated following reference point approach. No compensation is
allowed at this compensation point!
12–6
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7 6 5
Comp. point 4 Comp. point 3
Yes/No +/- Yes/No +/-
Comp. point 8 Comp. point 7
Yes/No +/- Yes/No +/-
Comp. point 12 Comp. point 11
Yes/No +/- Yes/No +/-
Comp. point 996 Comp. point 995
Yes/No +/- Yes/No +/-
Comp. point 1000 Comp. point 999
Yes/No +/- Yes/No +/-
0
1
0
1
793 – 1
MD offset = ––––––––––= 198
Value in MD 316* ... 198
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Bit No.
4 3
Comp. point 2
Yes/No +/-
Comp. point 6
Yes/No +/-
Comp. point 10
Yes/No +/-
Comp. point 994
Yes/No +/-
Comp. point 998
Yes/No +/-
4
© Siemens AG 1992 All Rights Reserved
06.93
2 1 0
Comp. point 1
Yes/No +/-
Comp. point 5
Yes/No +/-
Comp. point 9
Yes/No +/-
Comp. point 993
Yes/No +/-
Comp. point 997
Yes/No +/-
6FC5197- AA50
SINUMERIK 840C (IA)