Apply To Config. Button; Run Auto-Tune Button - Emerson EZMotion User Manual

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Pro (in the Values From Drive column) the user can apply those values to the Motor Parameters column by clicking on "Apply to

Config.", in the middle of the Motor tab (this button looks like a series of arrows pointing from the Values from Drive column towards

the Motor Parameters column).

The values in the Values from Drive column are not saved as part of the configuration file. To save these values, the user must use

the Apply to Config button to save them.

This column is only functional when online with EZMotion. When offline, the values in the Values from Drive column will all read zero.

8.2.6

Apply to Config. Button

When the user runs the Auto-Tune feature available in the Unidrive SP/Digitax ST, PowerTools Pro reads the results of the Auto-

Tune and displays them in the Values from Drive column of the Motor tab. After the Auto-Tune, the measured values are only saved

in the Drive NVM, and not in EZMotion. Therefore, in order to store the values in EZMotion, the Auto-Tune values must be applied to

the configuration file. When the user presses Apply to Config., the values in the "Values From Drive" column are transferred into

the Motor Parameters column. Then the values must be downloaded by downloading the entire configuration file using Device >

Download.

8.2.7

The Unidrive SP and Digitax ST drive have the ability to run an Auto-Tune operation thereby measuring several different motor

parameters. Doing so allows the drive to obtain certain parameters that are not typically provided by the motor manufacturer, and

also optimizes other drive parameters to work properly with the connected motor/load.

PowerTools Pro allows the user to initiate this Auto-Tune feature from the Motor tab on the Drive/Encoder view.

There are several different Auto-Tune procedures that can be used depending on the Drive mode selected on the Drive/Encoder

view. These procedures are as follows:

While in Servo mode, there is only a single test that measures Motor Phase Resistance, Motor Phase Inductance, and Encoder

Phase Angle.

Figure 60:

SM-EZMotion/Unidrive SP Only - While in Closed-loop Vector mode, there are two different test modes. Auto-Tune Mode 1

measures the Motor Phase Resistance and Motor Phase Inductance. Auto-Tune Mode 2 measures the same parameters as Auto-

Tune Mode 1 in addition to the Motor Stator Inductance and Saturation Breakpoints 1 and 2.

Auto-Tune Window - Servo Mode

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EZMotion User/Programming Guide

Revision: A8

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