Siemens SINAMICS S120 Commissioning Manual page 45

Using DCC
The available remaining computation time can be used for DCC. In this case, the following
supplementary conditions apply:
● For a 2 ms time slice, a max. of 75 DCC blocks can be configured for each servo axis
● 75 DCC blocks for 2 ms time slice correspond to 2 U/f axes with 500 μs.
● 50 DCC blocks for 2 ms time slice correspond to 1.5 U/f axes with 500 μs.
Using EPOS
The following table shows the number of axes that can be operated depending on the
selected cycle times
Table 1- 12 Sampling times when using EPOS
Current controller
250
250
125
The use of an EPOS function module (with 1 ms position controller/4 ms positioner)
corresponds to 0.5 U/f axes with 500 μs.
Using CUA31/CUA32
Information on using the Control Unit Adapter CUA31 or CUA32:
● CUA31/32 is the first component in the CUA31/32 topology: 5 axes
● CUA31/32 is not the first component in the CUA31/32 topology: 6 axes
● For a current controller cycle of 62.5 µs, only 1 axis is possible with one CUA31/32.
Commissioning Manual
Commissioning Manual, (IH1), 01/2011, 6SL3097-4AF00-0BP1
with 125 μs that can be omitted/eliminated (≙ 2 U/f axes with 500 μs).
Cycle times [µs]
Speed controller
250
250
125
Preparation for commissioning
1.5 Rules for wiring with DRIVE-CLiQ
Number
Axes Infeed
6
5
4
1 [250 μs]
1 [250 μs]
1 [250 μs]
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