SOLO BETA User Manual
In Speed mode:
if you apply an analog 0V or in case of using PWM inputs, a 0% duty cycle to this pin , it will keep
your motor’s speed at 0 RPM, and at the same time by applying 100% duty cycle or 5V analogue
input, SOLO will force your motor to go to the maximum speed based on the Motors type as
below, of course your motor should be able to reach to that speed, otherwise it will stay at its
nominal speed even if you keep increasing the duty cycle. (look at the piano switch settings down
below)
For instance, if we take Normal Brushless motors as an example, and in case of applying analogue
voltages, the speed of the motor can be found based on the following formula:
The Normal BLDC motor speed [RPM] = ((5.0 - the voltage at S/T input)/5.0) * 8000
- To have accurate 3 phase motors speed measurements by SOLO, if needed, you need to
set the number of Poles of you motor at their exact value using one of the methods in
“Digital Commanding and Control” section, since the default value for number of poles in
SOLO is set at 8. If you don’t change this value SOLO will still function but you might need
to tune this value if you need the best performance in speed tracking and estimation in
sensorless mode.
www.solomotorcontrollers.com
January 2021 - Revision V_1.0.5 Copyright © 2020, All right Reversed. SOLO motor controllers.
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