Renesas RAA306012 User Manual page 44

RAA306012 RSSK User's Manual
Table 3-3 Basic Specifications of Sensorless 120-degree Conducting Control Software
Item
Control method
Motor rotation start/stop Determined depending on the level of SW101 ("High": rotation start "Low": stop)
Position detection of
rotor magnetic pole
Input voltage
Main clock frequency
Carrier frequency
(PWM)
Dead time
Control cycle
Rotational speed
control range
Optimization
Processing stop for
protection
Note.1: Please refrain from driving motor over the rated speed for a long period.
R12UZ0128EJ0100 Rev.1.00
Nov 1, 2023
with RL78/G1F Control Board
Content
120-degree conducting method (chopping upper arm)
or input from Renesas Motor Workbench
Sensorless: Position detection based on induced voltage measured by A/D
converters (every 60 degrees)
When position of rotor is detected, PWM duty and conducting pattern are set at
same time.
DC24[V]
CPU clock: f 32[MHz]
CLK
TRD clock: f 64[MHz]
HOCO
20 [kHz]
2[μs]
Speed PI control: every 1[ms]
Sensorless control mode: 265[rpm] to 3200[rpm]
CW and CCW are supported
Default
Disables the motor control signal output (six outputs), under any of the following
conditions.
1. Inverter bus voltage exceeds 28[V] (monitored per 1[ms])
2. Inverter bus voltage is less than 15[V] (monitored per 1[ms])
3. Rotational speed exceeds 3900[rpm] (monitored per 1[ms])
4. Zero-crossing are not detected for 200[ms].
5. Detection of unexpected output voltage pattern
6. Detection of overcurrent by external circuit (low-level input)
7. Fault detection of RAA306012
(Note.1)
Page 35 of 76
3. Usage