Siemens SINAMICS V20 Operating Instructions Manual page 306

Parameter list
8.2 Parameter list
Parameter Function
P2350 PID autotune enable
Enables autotune function of PID controller.
0
1
2
3
4
Dependency: Active when PID loop is enabled (see P2200).
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, I, and D values that are
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
oscillation 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.
304
Range Factory
default
0 - 4 0
PID autotuning disabled
PID autotuning via Ziegler Nichols (ZN) standard
PID autotuning as 1 plus some overshoot (O/S)
PID autotuning as 2 little or no overshoot (O/S)
PID autotuning PI only, quarter damped response
60 - 65000 240
0.00 - 20.00 5.00
Can be Scaling Data
changed set
U, T - -
U, T - -
U, T - -
SINAMICS V20 Converter
Operating Instructions, 10/2019, A5E34559884-012
Data Acc.
type Level
U16 2
U16 3
Float 3