Elmomc SimplIQ Digital Servo Drives-Bell Getting Started Manuale Utente Scaricare il pdf (Pagina 57)

The SimplIQ for Steppers Getting Started & Tuning and Commissioning Guide

MAN-BELGS (Ver. 1.1)

Figure 54: Frequency Editor, when no identification is available

The red points, and the list in the Frequency area, show the frequencies for plant

excitation. For every frequency there is also an associated excitement current

amplitude.

Before the identification you can see the default set of frequencies that the

Conductor sets before learning the plant.

 Bigger current amplitudes generate a better signal to noise ratio, and are thus

better for identification. There are other considerations, however:

o Large currents at high frequencies tend to saturate the amplifier voltage

due to motor inductance. This saturation is reflected in the identified

transfer function by decreased amplitude and increased delay.

o Large current near resonant modes lead to unpleasant noises, or even

mechanical damage.

After clicking Run Identification the window appears as follows:

1 2 ... 52 53 54 55 56 57 58 59 60 61 62 ... 93 94

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Elmomc SimplIQ Digital Servo Drives-Bell Getting Started Manuale Utente Pagina 57