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SINAMICS G120C
List Manual (LH13), 04/2014, A5E33840768B AA
239
2 Parameters
2.2 List of parameters
Caution: For some drive trains, the "onlinetuning" function can result in unstable settings. (motor makes a whistling sound).
This is especially the case for high load moments of inertia, which are coupled to the motor through a low-frequency
connection/coupling. This case, parameter p5272 or p5273 must be reduced.
Note: If p5300 = -1:
Autotuning is deactivated, and p5300 is automatically set to 0. In addition, the default setting values for the speed
and position controller are restored.
If p5300 = 0:
Online tuning is inactive. To permanently save the values determined for the speed and position controllers, the
parameters must be saved in a non-volatile memory (p0977 = 1).
The results of the moment of inertia estimator can be reset using p5300 = 0. The moment of inertia and the tuning
parameters must be redetermined after p5300>0.
If p5300 = 1:
One Button Tuning is active. The moment of inertia is determined once using a test signal. The controller parameters
and current setpoint filters are additionally determined once using a noise signal as excitation source.
If p5300 = 2:
Onlinetuning is active. The moment of inertia is estimated. The controller parameters are recalculated if the moment
of inertia noticeably changes.
Description: Setting the functions for One Button Tuning (p5300 = 1).
As long as autotuning is still active (p5300 <> 0), it is not possible to change the configuration.
A test signal is required for some measuring steps. Parameters p5307 to p5309 must be observed for this purpose.
Dependency: Refer to: p5300
Note: Re bit 00:
The speed controller gain is determined and set using a noise signal.
Re bit 01:
Possibly required current setpoint filters are determined and set using a noise signal.
As a consequence, a higher dynamic performance can be achieved in the speed control loop.
Re bit 02:
Using this bit, the moment of inertia is determined using a test signal. If this bit is not set, then the load moment of
inertia must be manually parameterized in parameter p1498. The test signal must have been previously set using
parameters p5308 and p5309.
Re bit 07:
With this function, these axes are adapted to the dynamic response set in p5275. This is necessary for interpolating
axes. The time in p5275 should be set according to the axis with the lowest dynamic response.
p5301[0...n] One Button Tuning configuration / OBT config
Access level: 3 Calculated: - Data type: Unsigned32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Units group: - Unit selection: - Func. diagram: -
Min Max Factory setting
- - 0000 0111 bin
Bit field: Bit Signal name 1 signal 0 signal FP
00 Setting Kp Yes No -
01 Setting current setpoint filter Yes No -
02 Moment of inertia estimator Yes No -
07 Synchronized axes Yes No -
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