Maybe my thick aluminium blocks can’t wick away the heat fast enough, I’ll take another look and do some testing. Thanks
Hi Gazman79 have you solved the problem with 200FX[3]?
I’m having the exact same problem too.
Esc cold but with propeller in water it limit power immediately. If I lift the propeller out of the water the engine runs at its maximum.
It would appear to be a current limitation!
I left all the parameters as default, I just removed the regenerative brake.
Has anyone used this ESC in efoil that can give me a suggestion?
I’ve run this speed controller for ages and it works perfectly. Are you sure it’s not over-temping?
The solder joints on that don’t look particularly goo either though.
What’s the extra black box?
Hi,
I never managed to get the problem resolved. Im sure it wasnt over temperature for several reasons, the aluminium block had good contact with thermal paste, the aluminium block was connected to an external heat sink which has been used with another esc with no issues.
The APD esc is set to reduce power to 50% on overtemp but when it was cutting out with me after 2 mins it just had a hard shut down and squeals.
I think i had Sync issues but not sure what or how to resolve
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Thank you Jezza and Gazman79
I slightly filed the welds to make them smooth and not damage the PWM wires that have to pass over them to come out. I use a very powerful Weller soldering iron.
The black box is a dc/dc converter to obtain the 5V needed by the receiver. I preferred to put it close to the esc to minimize external connections from the battery.
I believe that overtemperature is impossible, even if I have not been able to take measurements, given that the engine never revs up, not even for a few seconds, while as soon as the propeller is brought out of the water even just a little, the engine runs at maximum rpm.
Could it be a firmware issue? Maybe an older version works better…
What motors are we all using?
My unsuccessful attempts were with the 65161.
Yes, I’m using 65161 too
I ran it on the FR motor so that seems to be the difference. It might be worth reaching out to APD and asking them about the issue and seeing if there is a setting or another firmware that will resolve it. I have an APD120A that I can try run on the 65161 and see what happens.
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Contacted APD assistance, they asked me for a series of information to try to resolve the problem. I then programmed an ESP32 to fit inside which decodes the dshot telemetry packets and makes them available via BlueTooth, so I can provide a log during a water test.
Now I just have to close everything up and try it in the water.
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Excellent work, that will be useful.
Its a shame APD didn’t provide a way of doing this through their software. I think they do on more expensive models.