Detailed description
2.3 Setpoint /actual-value system
Basic logic functions: Velocities, Setpoint/Actual Value Systems, Closed-Loop Control (G2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
53
In order to adapt the actual-value resolution to the calculation resolution, the control
calculates the quotients from the "internal increments/mm" and the "encoder increments/mm"
as follows:
(1&B*5,'B32,17B',67>Q@,17B,1&5B3(5B00
,QWHUQDOPXOWLSOLFDWLRQ
(QFRGHULQFUHPHQWVPP
,QWHUQDOLQFUHPHQWVPP
The distance for linear encoders is based on the pulse increments.
Linear axis with rotary encoder on motor
=
=
n
n
n
(1&B,6B/,1($5B
(1&B,6B/,1($5B
,6B527B$;
(1&B5(62/
/($'6&5(:B3,7&+
'5,9(B(1&B5$7,2B180(5$
'5,9(B(1&B5$7,2B'(120
'5,9(B$;B5$7,2B180(5$
'5,9(B$;B5$7,2B'(120
*
0
0RWRU
6SLQGOH
1XPEHURIPRWRUUHYROXWLRQV
1XPEHURIHQFRGHUUHYROXWLRQV
1RRIPRWRUUHYV
1RRIVSLQGOHUHYV
/RDG
JHDU
0HDV
JHDU
(QFRGHU
%DOOVFUHZ
7DEOH
Figure 2-7
Linear axis with rotary encoder on motor
In order to adapt the actual-value resolution to the calculation resolution, the control
calculates the quotients from the "internal increments/mm" and the "encoder increments/mm"
as follows:
SINUMERIK example
Linear axis with rotary encoder (2048 Impulse) on motor;
internal multiplication (2048)
Gear:
Motor/leadscrew 5
Pitch 10 mm
10000 increments per mm
Summary of Contents for SINUMERIK 840D sl
Page 282: ...Index Basic logic functions Acceleration B2 64 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 388: ...Basic logic functions Travel to fixed stop F1 Function Manual 11 2006 6FC5397 0BP10 2BA0 52 ...
Page 962: ...Index Basic logic functions Emergency Stop N2 20 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1704: ...Constraints Basic logic functions Spindles S1 94 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1716: ...Index Basic logic functions Spindles S1 106 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1996: ...Index Basic logic functions Tool Offset W1 208 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2150: ...Table of contents Basic logic functions Appendix 4 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2184: ...Glossary Basic logic functions Appendix 38 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...