If it gets warm, there is something not right with the hardware. Does it get warm when you have the battery connected, but the switch is in off position? How did you connect the battery to the 75/300? Wiring, connectors used etc.
No, it only gets warm when the switch is in the on position.
The connections to the battery are via XT90 connectors using 8 gauge wire. The VESC box is connected to the battery box physically and there is about 100mm of cable between them.
do you use XT90 or XT90S?
XT90-S purchased from Amazon.
There is the same situation this morning. When I turn it on, the temperature jumps immediately to 40C and starts climbing rapidly.
Sounds like it gets a signal and flows current through the Mosfets.
Will the trampa 75/300 run on 3s 11v?
It looks to be the only controller that i could use to produce 2kw at 12v (i can’t go more than 12v)
This is the only VESC that has a minimum voltage stated at 14v, but i wondered if this was just due to having a 12v regulator on board, and if i could run it on 12v, and either disconnect the 12v BEC or the BEC not work?
Any thoughts?
It has a 12V regulator and that wants 12V or more on the input. Also take some voltage sag into account.
Did this feature ever make it to the software so I can buy a kill switch to conplement my vesc board?
Is it practical to just put the magnetic safety switch on the 5v line between the VESC and the receiver? In my mind that would be safe enough for a cutoff if someone falls off the board, but I guess I don’t know if that would eventually damage the receiver.
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Hi, i do that in my last build like that. I configured and tested in VESC Tool the cutoff and it works great for me.
In my new build i am using the new Flipsky VX3 and it works with the UART Port and not PPM. At moment i not implemented the feature. I am not sure if it works with UART too…
Yes, but i still not tested if the mechanism is the same as in PPM
If the signal is lost, the VESC motor controller will cut out after the defined time frame.
So interrupting the signal is a method to stop the motor. However, we prefer not have fast response time, as a very short remote dropout should not immediately cut back power.
Using ADC as a safety switch is probably better. Maybe Vedder can incorporate it into the new upcoming VESC Tool 3. I will ask him about that feature.
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Where do you set the defined time frame? I don’t recall seeing a setting when setting up my ESC. And when disconnected does it continue the last known throttle for the specified time frame?
Frank, did you ask him one year ago also as you said? What was The answer?
Have you asked him again, What is The answer?
The reason why i ask is because i never bought The kill switch last year because i had hope on this feature. In case of this feature it shall be a closing kill switch, in case I want to remove The power to the receiver it should be a open kill switch.
I created a feature request on vesc forum also for The same question earlier this year.
https://vesc-project.com/node/2878
One other question related to Trampa vesc. I have several of your vesc, but i do not understand why it is any conformal coating at all on them.
What is The reason for this?
The kill switch will be integrated into the new VESC-Tool BETA within a few days.
https://vesc-project.com/node/2878#comment-7778
We conformal coat them for customers who operate them near the water.
I think in surf applications you really want them in a 100% waterproof box, or even pott them in epoxi.
Coating needs to be done by hand to spare out the mosfets. It adds quite some workload to each unit.
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Sounds great that the kill switch functionality will finaly reach to the software 
Okay, that is news for me that you offer conformal coat as extra service. How much extra does it cost?
I would probably have bought it to the vescs I bought from you.
I agree they need to be in a extra box, but in case an accident happens, it is good to have some extra margins so it doesn’t burn up directly.
Then the waranty is gone directly when we open them up also, that is the reason why I always want to test it on the board to make sure it is working fine before I pott and put corrosion X on it
Conformal coating would not help when water gets in there. It helps to prevent corrosion in salty air.
We will not add it ourselves for a hand full of units. Just if someone wants to buy 100 units for a production model. Also oil like corrosion X has turned out to attack the heat pads from all manufacturers we tried.
So the best way is either having it in a 100% waterproof box, or pott it and throw it in a 100% waterproof box.
Hi, that’s a very important observation coming from you. I hope all forum members will read it. It is very likely that the corrosion X is attacking (eroding, sticking, etc) some plastics and some flexible seals.
Corrosion-X is not compatible with Butyl and Silicone, that’s why the heatpads degrade (they made from silicone). The O-rings and seals in the motors are made from Nitrile or Viton which would be fine with Corrosion X.
Pouring corrosion X on an ESC is just a bad idea full stop! Even potting the ESC is a bad idea.
Using a decent waterproof box means that if there’s a fault it’s easy to repair and there’s no mess or manufacturer warranty voided.
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