Pulse Frequency Wobbling - Siemens SINAMICS G130 Operating Instructions Manual

Converter built-in units 75 kw-800 kw

Hide thumbs Also See for SINAMICS G130:

Table of Contents

Functions, monitoring, and protective functions

9.2 Drive functions

Deactivation of the variable pulse frequency

By changing the parameter p0290 to "0" or "1" the variable pulse frequency is deactivated.

Function diagram

Pulse frequency wobbling

Pulse frequency wobbling is when the pulse frequency is varied slightly according to a

statistical process. The average pulse frequency value is still the value set; the statistical

variation of the instantaneous value results in a modified noise spectrum.

This procedure reduces the subjectively noticeable motor noise, especially for the relatively

low pulse frequencies set in the factory.

Pulse frequency wobbling is activated with p1810.2 = 1. The amplitude of the statistical

wobble signal can be set in the range of 0 % to 20 % via p1811.

Signals and monitoring functions - thermal monitoring power unit

Power unit overload I2t

CO: Power unit temperatures

Sampling times for internal control loops

Drive filter type, motor side

Power unit overload response

Maximum speed

Fault thermal overload power unit

Alarm, thermal overload power unit

Inverter chassis units

Operating Instructions, 07/2016, A5E00331449A