AN1911 Freescale Semiconductor / Motorola, AN1911 Datasheet - Page 9

• Manufacturer Part Number: AN1911
• Description: 3-Phase AC Motor Control with V/Hz Speed Open Loop Using DSP56F80X
• Manufacturer: Freescale Semiconductor / Motorola

5.
5.1 System Outline
5.2 High Voltage HW set
The DC-Bus voltage and power stage temperature are measured during the control process. They are
overvoltage, undervoltage, and overheating protection of the drive. Both undervoltage protection and
overheating are performed by ADC and software. The DC Bus overcurrent and overvoltage fault
signals are connected to a PWM fault input.
If any of the above mentioned faults occurs, the motor control PWM outputs are disabled in order to
protect the drive and the fault state of the system is displayed on the PC Master control page.
The speed of the motor is measured by the Quadrature Decoder just for displaying in PC Master.
The motor control system is designed to drive the 3-phase AC motor in a speed open loop.
There are more software versions targeted for a concrete DSP and Evaluation Module (DSP/EVM):
The hardware setup for a concrete DSP/EVM differs only by Evaluation Module (EVM) module used.
The designed software is capable of running only on High Voltage hardware set described below.
Other power module boards will be denied due to board identification built into the software. This
feature protects you against hardware damage.
The hardware setup is shown in
Targeting_DSP5680X_Platform, according to targeted DSP/EVM. That documents also describes
EVM jumper settings.
The system configuration is shown in
•
Hardware
DSP56F80X
Indirect Power Factor Correction Using DSP56F80X
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
Figure 5-1.
Figure
4-1, and can also be found in the document
Hardware
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