Siemens SINAMICS S120 Commissioning Manual page 35
Hide thumbs
Also See for SINAMICS S120:
- Function manual (1094 pages) ,
- Diagnostic manual (947 pages) ,
- Manual (848 pages)
Table of Contents
Advertisement
Cycle times for vector control
This following table lists the number of axes that can be operated with a Control Unit in the
vector control mode. The number of axes is also dependent on the cycle times of the
controller:
Table 1- 7
Sampling time setting for vector control
Cycle times [µs]
Current
Speed controller
controller
500 µs
2000 µs
400
µs
1600 µs
3)
250 µs
1000 µs
1) Valid for TM31 or TM15IO; for TM54F, TM41, TM15, TM17, TM120, TM150 - restrictions are possible dependent on the
set sampling time.
2) For power units in chassis format, the infeed cycle depends on the power rating of the module and can assume values
of 400 μs, 375 μs or 250 μs.
3) This setting results in lower remaining computation times.
In closed-loop vector control, current controller cycles can be mixed with 250 µs and 500 µs.
NOTICE
Restriction for the chassis format
If edge modulation and wobbling are activated simultaneously with p1802 ≥ 7 and p1810.2
= 1 respectively, the quantity structure for vector control is halved. Then a maximum of 3
axes at a current control cycle of 500 µs, 2 axes at 400 µs or 1 axis at 250 µs are
permissible.
Cycle times for U/f control
This following table lists the number of axes that can be operated with a Control Unit in the
U/f control mode. The number of axes is dependent on the current controller clock cycle:
Table 1- 8
Sampling time setting for U/f control
Cycle times [µs]
Current
Speed controller
controller
500
2000
Commissioning Manual
Commissioning Manual, (IH1), 01/2012, 6SL3097-4AF00-0BP2
Number
Axes
6
1 [250 μs]
5
1 [250 μs]
3
1 [250 μs]
Number
Drives /
12
1 [250 μs]
1.5 Rules for wiring with DRIVE-CLiQ
Motor / dir.
measuring
Infeed
2)
systems
6 / 6
5 / 5
3 / 3
Motor / dir.
measuring
Infeed
systems
- / -
Preparation for commissioning
TM
/ TB
1)
3 [2000 μs]
3 [2000 μs]
3 [2000 μs]
TM/TB
3 [2000 μs]
33
Advertisement
Table of Contents
