Sensorless Motor Control and Tuning
DRV832x Sensorless Software User's Guide
Device Configuration
Driver Utilized
DRV8323RS Sensorless
MODE

DRIVER ENABLE

Motor Control
MOTOR ENABLE

Set Motor Speed010020
20 %
Motor Direction
REVERSE
Motor Poles

PWM Switching Frequency
10
kHz

Motor Initial Position Mode

Status Report
FAULT STATUS INDICATOR
Electrical Speed
0 Hz
Current Motor Speed
0 RPM
 System Parameter Control
Min Off Duty
10
%

Min On Duty
15
%

Maximum Duty Cycle
100
%

Ramp Rate Delay
500
PWM Cycles

 Fault Handling Control
Under Voltage Limit
10
V

Over Voltage Limit
25
V

Stall Detect Rev Threshold
2
Revs

Stall Detect Timer Threshold
200
ms

Auto Fault Recovery Time
3000
ms

Motor Phase Current Limit
10
A

 Align Control
Align Sector
1
Align Wait Time
500
PWM Cycles

 Open Loop Acceleration Control
Acceleration Rate
4
Hz/s

Acceleration Stop
50000
mHz

Acceleration Velocity Constant
10000
mHz

 Closed Loop Control
BEMF Threshold
1000
counts

PWM Blank Counts
5
Clock Cycles

Startup Duty Cycle
4
%

Commutation Blank Time
5
PWM Cycles