Siemens SINAMICS V20 Operating Instructions Manual page 291

Parameter Function
Note:
P2350 = 1
•
This is the standard Ziegler Nichols (ZN) tuning which should be a quarter damped response to a step.
P2350 = 2
•
This tuning will give some overshoot (O/S) but should be faster than option 1.
P2350 = 3
•
This tuning should give little or no overshoot but will not be as fast as option 2.
P2350 = 4
•
This tuning only changes values of P and I and should be a quarter damped response.
The option to be selected depends on the application but broadly speaking option 1 will give a good re-
sponse, whereas if a faster response is desired option 2 should be selected.
If no overshoot is desired then option 3 is the choice. For cases where no D term is wanted then option 4 can
be selected.
The tuning procedure is the same for all options. It is just the calculation of P and D values that is different.
After autotune this parameter is set to zero (autotune completed).
P2354 PID tuning timeout
length [s]
This parameter determines the time that the autotuning code will wait before aborting a tuning run if no oscil-
lation has been obtained.
P2355 PID tuning offset [%]
Sets applied offset and deviation for PID autotuning.
Note: This can be varied depending on plant conditions e.g. a very long system time constant might require a larger
value.
SINAMICS V20 Inverter
Operating Instructions, 11/2016, A5E34559884-006
Range Factory
default
60 - 65000 240
0.00 - 20.00 5.00
Can be Scaling
changed
U, T -
U, T -
Parameter list
8.2 Parameter list
Data Data Acc.
set type Level
- U16 3
- Float 3
291