UM0432 datasheet(32/53 Pages) STMICROELECTRONICS

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Motor control operations

UM0432

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7.4.8

Changing the maximum current allowed by GUI

The maximum current allowed by the GUI has been set to 8 A. This value may be changed

by modifying the "gui.ini" file inside the folder where the "LVST7MC - GUI" file is installed.

Open the "gui.ini" file using the notepad and change the value of the following line:

MAX_CURRENT = 8

Replace the value 8 with the desired current limitation value expressed in amperes. Note

that the hardware current limitation value must also be changed accordingly (see

Section 7.4.16 for instructions on how to modify this limitation).

7.4.9

Compiling the firmware

Once the configuration files have been produced (manually or using the GUI), the binary

executable file (.s19) must be compiled and produced.

To do this, the STVD7 for inDART-STX is used with the Cosmic compiler (see Section 7.3).

Run the STDV7 for inDART-STX and click on File > Open Workspace.

Select the workspace file in the firmware working folder depending on the motor type

(see Section 7.4.1).

The default project in use is opened by the environment and is shown on the left side of

the window below the opened ".stw" file.

Make sure that "Release" is set as the active project configuration (see Figure 18).

Figure 18.

ST7VD active project configuration

Use the Build menu to display and select the "rebuild all" command. The project is

compiled and built, and an executable file "<firmware name>.s19" is generated inside

the "release" folder in the workspace.

Brake voltage

Voltage level (expressed as a part of the 255th of the bus voltage) of the active braking stator

field.

Brake min speed

Brake stays active until the motor is brought below this rotor frequency.

Table 11.

"3-phase PMAC motor (sinewave)" advanced parameters (continued)

Parameters name

Description

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