SOLO Communication Manual - UART and USB
www.solomotorcontrollers.com
September 2021 - Revision V_1.0.1 Copyright © 2021, All right Reversed. SOLO motor controllers.
38
0x25 : Sensorless Observer Filter Gain for Ultra Fast BLDC-PMSM Motors
Description:
This command sets how fast the observer should operate once SOLO is in sensorless mode
with ultra-fast BLDC-PMSM selected as the Motor type. Generally this gain can have values
from 1 to 1000 and the lower the gain, the better will be the performance in Higher speeds.
For tuning purposes, the user needs to check the behaviour of the motor for different values
other than default value and try to find at what gain the performance is at best. The best
method is to start around the default gain and try to reduce or increase the gain with steps of
2X, 3X, 4X, … and so on to be able to see the significance of any change on the final result. The
reason for this is if this gain is changed with very small steps, the user might not be able to see
any difference, so once a good region is found, the user can start tuning the gain around that
value with more accuracy.
Description:
This command sets the baud-rate of the UART line, currently there are two baudrates
supported by SOLO, and they can be selected by sending either 0 or 1 in DATA section of the
packet with command code of “0x26”, if the value of the baud rate is changed, to make it
effective a power recycle is necessary.
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