Siemens SINAMICS S120 - Page 410

Appendix
A.5 System rules, sampling times and DRIVE-CLiQ wiring
Commissioning with Startdrive
410 Commissioning Manual, 11/2017, 6SL3097-4AA10-0BP1
Mixed operation of servo control and V/f open-loop control
In mixed operation with servo control and V/f control, one axis in servo control at 125 µs
uses exactly as much computing power as two axes in V/f control at 500 µs. In conjunction
with servo control, a maximum of 11 axes are permitted (1 servo control plus 10 vector
control V/f).
Table A- 9 Number of axes for mixed servo control operation
Number of axes in servo control
Number of axes in V/f control
6
125 µs
3
62.5 µs
0
-
5 125 µs - - 2 500 µs
4
125 µs
2
62.5 µs
4
500 µs
3
125 µs
-
-
6
500 µs
2
125 µs
1
62.5 µs
8
500 µs
1
125 µs
-
-
10
500 µs
0
-
0
-
12
500 µs
Mixed operation of vector control and V/f open-loop control
In mixed operation with vector control and V/f control, one axis in vector control at 250 µs
uses exactly as much computing power as two axes in V/f control at 500 µs. In conjunction
with vector control, a maximum of 11 axes are permitted (1 vector control plus 10 V/f
control).
Table A- 10 Number of axes for mixed vector control operation
Number of axes in vector control
Number of axes in V/f control
6
500 µs
3
250 µs
0
-
5
500 µs
-
-
2
500 µs
4
500 µs
2
250 µs
4
500 µs
3
500 µs
-
-
6
500 µs
2
500 µs
1
250 µs
8
500 µs
1
500 µs
-
-
10
500 µs
0
-
0
-
12
500 µs