Setting Sampling Times - Siemens Sinamics s120 Commissioning Manual

Preparation for commissioning
2.5 System rules, sampling times and DRIVE-CLiQ wiring
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 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 2- 7
Vector control
When commissioning is exited (p0009 = p0010 = 0), the effective pulse frequency (p1800) is
appropriately pre-assigned, depending on p0113, and can be subsequently modified.
2.5.3.5

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.
Making and checking settings
1. Activate in the expert list of the Control Unit the drive base configuration with p0009 = 3.
2. In the expert list of the drive object, activate the expert mode with p0112 = 0.
3. Specify the current controller cycle for the drive object as follows: p0115[0] = current
controller cycle.
For the current controller clock cycle, only use the values from "Table 2-9 Pulse
frequencies and current controller cycles for servo control (Page 59)" and "Table 2-11
Pulse frequencies and current controller cycles for vector control (Page 60)".
4. Close in the expert list of the Control Unit the cycle setting with p0009 = 0.
A startup is then performed. The speed controller cycle and flux controller cycle are
adapted automatically so that they remain an integer multiple of the current controller
cycle.
5. Then check the maximum speed p1082, the set pulse frequency p1800 and start an
automatic calculation of the controller data (p0340 = 4).
46
Pulse frequency for isochronous operation
Control type
Current controller cycle / µs
Servo control
p0115[0]
250
125
500
250
Commissioning Manual, (IH1), 07/2016, 6SL3097-4AF00-0BP5
p0113
Pulse frequency / kHz
2
4
1
2
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