Siemens SINAMICS G120 - p2350 Enable PID autotuning; PID autotuning

2 Parameters
2.2 List of parameters
SINAMICS G120 Control Units CU240B-2/CU240E-2
340 List Manual (LH11), 01/2016, A5E33839529
Note: While the technology controller is enabled, the following applies:
When switching off with OFF1, OFF3 and for pulse inhibit, bits 10 and 11 are simultaneously set to 1 as the controller
output is defined by the internal limiting.
Description: Activates the function to automatically tune the PID controller.
Value: 0: PID autotuning de-activated
1: PID autotuning with ZN technique
2: As 1 with low overshoot
3: As 2 + low or no overshoot
4: PID autotuning, only PI
Dependency: Active if the PID controller is enabled (see P2200).
Note: P2350 = 1
This is the Ziegler-Nichols standard tuning (ZN tuning). In this case, it should involve a response to a step.
P2350 = 2
For this tuning, a low overshoot is obtained (O/S). However, it should be faster than option 1.
P2350 = 3
For this tuning, a low or no overshoot is obtained. However, it is not as fast as option 2.
P2350 = 4
For this tuning, only values P and I are changed, and it should involve a dampened response.
Which option should be selected depends on the particular application. It can be generally stated that option 1
manifests a good response. However, if a faster response is required, then option 2 should be selected.
If no overshoot is desirable, then option 3 should be the preferred choice.
Option 4 should be selected for cases in which no D component is required.
The tuning technique is identical for all options.
Only the P, I and D values are calculated differently.
This parameter is set to zero after automatic tuning has been completed.
04 Technology controller speed setpoint total in
setpoint channel
Yes No -
05 Technology controller RFG bypassed in the
setpoint channel
Yes No -
06 Technology controller starting value at the
current limit
No Yes -
08 Technology controller actual value at the
minimum
Yes No -
09 Technology controller actual value at the
maximum
Yes No -
10 Technology controller output at the
minimum
Yes No -
11 Technology controller output at the
maximum
Yes No -
12 Fault response active Yes No -
13 Technology controller limiting enable Yes No -
p2350 Enable PID autotuning / PID autotuning
Access level: 2 Calculated: - Data type: Integer16
Can be changed: T Scaling: - Dyn. index: -
Unit group: - Unit selection: - Func. diagram: -
Min Max Factory setting
0 4 0