Setting The Sampling Times - Siemens SINAMICS S120 Function Manual

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.
12.12.2

Setting the sampling times

The sampling times for the following functions are set by selecting the appropriate values in
p0112 for the closed-loop control configuration in µs and are copied to p0115[0...6]
depending on the performance levels required:
● Current controller (p0115[0])
● Speed controller (p0115[1])
● Flux controller (p0115[2])
● Setpoint channel (p0115[3])
● Position controller (p0115[4])
● Positioner (p0115[5])
● Technology controller (p0115[6])
The performance levels range from xLow to xHigh. Details of how to set the sampling times
are given in the SINAMICS S120/S150 List Manual.
Setting the pulse frequency in online operation using STARTER
Enter the minimum pulse frequency in p0113. For isochronous operation (p0092 = 1), you
can only set the parameter so that a resulting current controller cycle with an integer multiple
of 125 μs is obtained. The required pulse frequency can be set after commissioning (p0009 =
p0010 = 0) in p1800.
Table 12- 21 Pulse frequency for isochronous operation
When commissioning is exited (p0009 = p0010 = 0), the effective pulse frequency (p1800) is
appropriately pre-assigned, depending on p0113, and can be subsequently modified.
Drive functions
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
Control type
Current controller cycle / µs
Servo control
Vector control
12.12 System sampling times and number of controllable drives
p0115[0]
250
125
500
250
Basic information about the drive system
p0113
Pulse frequency / kHz
2
4
1
2
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