Table of Contents
Advertisement
RAA306012 RSSK User's Manual
3.2
Sensorless Vector Control
3.2.1
Control Specifications
The sensorless vector control is a control method that estimates the motor position from the motor current in
each phase and drives the motor sinusoidally in the appropriate phase.
This motor control method can be evaluated by using the RX13T Control Board. Table 3-1 shows the control
specifications.
For details of the specifics of the program, please refer to the "RAJ306101 Application Note: Sensorless
Vector Control for Permanent Magnetic Synchronous Motor (Implementation) (R18AN0060EJ)" .
Table 3-1 Basic Specifications of Sensorless Vector Control Software with RX13T Control Board
Item
Control method
Position detection method
Motor rotation start/stop
Input voltage
Carrier frequency (PWM)
Dead time
Control period
Rotation speed control
range
Natural frequency
of each control system
Optimization setting
of compiler
ROM/RAM size
Processing stop for
protection
R12UZ0128EJ0100
Rev.1.00
Nov 1, 2023
Content
Vector control
Sensorless
Determined depending on the level of SW101
("High": rotation start, "Low": stop) or input from Analyzer
DC 24[V]
20[kHz]
2[μs]
Current control / Position and speed estimation: 100[μs]
Speed control:1[ms]
CW: 0[rpm] to 2650[rpm]
CCW: 0[rpm] to 2650[rpm]
Current control system: 300[Hz]
Speed control system: 5[Hz]
BEMF estimation system: 1000[Hz]
Position estimation system: 50[Hz]
Optimization level
Optimization method
ROM: 17.1[KB]
RAM: 4.5[KB]
- Disables the motor control signal output (six outputs), under any of the
following conditions.
1. Current of each phase exceeds 0.89[A] (monitored every 100[μs])
2. Inverter bus voltage exceeds 28[V] (monitored every 100[μs])
3. Inverter bus voltage is less than 14[V] (monitored every 100[μs])
4. Rotation speed exceeds 3000[rpm] (monitored every 100[μs])
5. Fault detection of RAA306012
- When an external overcurrent signal is detected (when a falling edge of the
POE10# port is detected), the PWM output ports are set to 'Low' state.
2(-optimize=2) (default setting)
Size priority(-size) (default setting)
3. Usage
Page 26 of 76
Advertisement
Table of Contents
