Setting The Pulse Frequency; Setting Sampling Times - Siemens SINAMICS S120 Commissioning Manual

A.5.3.3

Setting the pulse frequency

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 using the commissioning tool in online operation
Enter the minimum pulse frequency in p0113. For isochronous operation (p0092 = 1), you
can only set the parameter so that a resulting current controller sampling time with an integer
multiple of 125 μs is obtained. The required pulse frequency can be set after commissioning
(p0009 = p0010 = 0) in p1800.
Table A- 3
When commissioning is exited (p0009 = p0010 = 0), the effective pulse frequency (p1800) is
appropriately pre-assigned, depending on p0113, and can be subsequently modified.
A.5.3.4

Setting sampling times

If sampling times are required which cannot be set using p0112 > 1, you can directly set the
sampling times in expert mode using p0115.
If p0115 is changed online, then the values of higher indices are automatically adapted.
Note
Do not change the sampling times when the commissioning tool is in the offline mode,
because in this case if there is an incorrect parameterization, the project download is
canceled.
Commissioning with Startdrive
Commissioning Manual, 11/2017, 6SL3097-4AA10-0BP1
Pulse frequency for isochronous operation
Control type
Current controller sampling time / µs
Servo control
Vector control
A.5 System rules, sampling times and DRIVE-CLiQ wiring
p0115[0]
250
125
500
250
Appendix
p0113
Pulse frequency / kHz
2
4
1
2
397