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Flipsky Dual FSESC6.6 loses connection, connected BLDC buzzing after restart

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gabrielredding
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Joined: 2019-04-03 16:28
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Flipsky Dual FSESC6.6 loses connection, connected BLDC buzzing after restart

Hey all. Thanks for reading!

I have a Flipsky dual FSESC6.6 to which I'm connecting an Alien Power Systems APS8072 sensored BLDC.

I'm powering this with an Echo 58v battery that is intended for electric mowers, weed eaters, blowers, etc.

I was able to wire it up, connect to my laptop with USB, update the firmware, and run through the FOC setup wizard, and get the motor to run using the arrow keys. But, every once in a while I'd get an over-volt fault, which would make the motor snap to a stop, disconnect the ESC from the software, and not allow me to reconnect until I unplugged the USB cord, and disconnected power, before plugging it all back in.

I was getting an over-volt fault at 57v. Which I don't understand, since the max voltage is 60v. The VESC-Tool wouldn't allow me to raise the max voltage.

Anyway, I unplugged everything and let it sit for a couple weeks without moving anything. Today, I plugged it back in. As soon as I powered it up, the motor started vibrating like it was getting power to two phases. This is before attempting to connect to the VESC-Tool. Connection to the VESC-Tool wasn't possible unless the motor was unplugged.

I re-uploaded the firmware, and was able to connect the FSESC6.6 to VESC-Tool with the motor connected. However, when I tried to run through the FOC wizard again, the motor snapped back to vibrating, and the ESC disconnected from VESC-Tool.

 

What am I doing wrong?

gabrielredding
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Last seen: 1 year 6 months ago
Joined: 2019-04-03 16:28
Posts: 5

Update: I just powered up the FSESC6.6 without the motor connected and measured 27.7 volts going to all three phases. This, coming from a battery measuring at 55.6v

gabrielredding
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Last seen: 1 year 6 months ago
Joined: 2019-04-03 16:28
Posts: 5

Now, everything behaves normally until I try to run the motor resistance test, or try to use the arrow keys to control the motor. As soon as anything is done that might send power to the motor, the FSESC6.6 disconnects from the VESC-Tool.