I see many people fret about using a low voltage power supply to configure their VESC. This is a good idea but it is not always necessary.
The only time I would say it is absolutely necessary is when powering up a VESC for the very first time, if you buy them from me you can count on this already being done. Sometimes a solder bridge will not be seen on the first visual inspection and you can fry a vesc if you attempt to spool up at higher voltages. Also if you are attempting to power an unusual motor that is not normally used, better to use caution and use low voltage.
Well sir… what low voltage supply should I use?
Lab power supplies will often have trouble or induce unknown variables so I recommend a basic 12v lead acid battery. Nothing fancy, you can get one delivered for less than $10. Again, if you buy one of my VESC’s this is not necessary unless you are using unorthodox motors.
I have run motor detection at 12s without issue on a 192kv motor. This brings up another point… motor KV and system voltage. Before running config divide 8600rpm by your system voltage. If the resulting number is lower than the KV of the motor you are going to use than your KV is to high and you need to get another motor or lower your voltage.
A 192kv motor is the absolute max you should use at 12s.
8600rpm/44.4v = 193.69KV
If you attempted to spool up a higher kv motor at 12s it could cause faults and return a bad detection. Same goes for lower voltages but with higher KV motors. Take 10s for instance. 8600rpm/37v = 232.43kv So we can see 230kv is the max kv we should use at 10s.