openinverter forum

Hello. I ask for help from the forum, I have collected a board for my project, the circuit is in the application and sometimes I encounter malfunctions, but they do not occur often, these failures lead to periodic through current and if the engine turns, it is not possible to unwind, there is a floating of revolutions, then this problem disappears as if it did not it was, and the engine accelerates normally and there are no failures. Firmware sine 5.15

Circuit diagram is pretty much standard openinverter and there is no known problem like that. Could it just be an issue with encoder or gate driver connection?

Yes, the circuit is very similar, but there are a few differences, quartz is connected through a 2k resistor and the 60 pin is not at minus, but through a 10k resistor, if this cannot be the cause, then it looks very similar to the problem with the encoder, because the reason disappeared last time after I twisted the same one the same encoder from one engine to another