Motorola M68HC08 manual Tuning for Customer Motor

Freescale Semiconductor, Inc.

Freescale Semiconductor, Inc.

User Guide

6.5 Tuning for Customer Motor

This section describes how to modify the software parameters for any BLDC motor and some hardware adaptations. The software parameters can be evaluated from a PC computer using PC master software, so the first subsection describes tuning the PC master software project file.

•A follow-up for software customizing to a customer motor is shown in Figure 6-7.

•Before starting the software modification for a customer motor and application, it is recommended that you check the application and motor suitability. This is explained in the section 6.2 Application Suitability Guide.

•The Parameters File Selection must be made according to Hardware Configuration used.

•If a modified hardware power stage is used, the appropriate constants in const_cust_x.h file must be set as described in the section 6.5.3.1 Software Customizing to Power Stage.

•If a low-voltage board with a modification for 42 V is used, the constants VOLT_HW_MAX and VOLT_MAX_FAULT_V must be changed.

•If one of the three standard power stages is used, the software customizing to power stage is not needed.

•For software customizing to customer motor and application, a setting must be made as explained in:

–6.5.4 Software Customizing to Motor — Voltage and Current Settings

–6.5.4.3 Alignment Current and Current Regulator Setting

–6.5.5 Software Customizing to Motor — Commutation and Start-up Control Setting

–6.5.6 Software Customizing to Motor — Speed Control Setting.

Accomplishing the above steps should be sufficient for most applications. However, in some cases there may be a need for advanced software customizing (see Figure 6-8.)with changes to motor PWM

Designer Reference Manual		DRM028 — Rev 0
126	User Guide	MOTOROLA
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