Help Please Castle - My Ice HV ESC is behaving weird

[Jahay]

Arctic

when you say "opto ESC" - what do you mean?

My BEC is fine, my steering worked yesterday.

It could be a loose connection, but i would understand i had crashed and it started behaving like that... but i was just driving in a straight line when it started to cut out ???

[brian015]

Originally Posted by Jahay

Arctic

when you say "opto ESC" - what do you mean?

My BEC is fine, my steering worked yesterday.

It could be a loose connection, but i would understand i had crashed and it started behaving like that... but i was just driving in a straight line when it started to cut out ???

Edit: I had time to check my set-up and when I turn the BEC off, the ESC doesn't go through it's start-up beeps again - so it doesn't sound like a BEC problem would cause exactly what you are seeing.

Now you could lose power if the BEC dropped off, because it powers the rx, but that wouldn't explain why you get the start-up beeps again.

I think the ESC must be losing power from the lipos to exhibit that behavior, or the ESC itself is faulty.

[bruce750i]

Originally Posted by Jahay

Arctic

when you say "opto ESC" - what do you mean?

An opto ESC isolates the high-power side (battery and motor) from the signal side (connection to the receiver) by internally transmitting the receiver throttle signal from the input side to the output side of the ESC through an opto-coupler. That's basically an LED sending a light signal across a small gap to a photo cell which receives it, so no electrical connection between the two sides.

A true opto-isolated ESC will not work if you cut the red wire. It needs 5V from the receiver to power the input side of the optocoupler.

From another thread on opto esc. by abenn

Leave the red wire in, plug in some power(12-50volts) and start wiggling wires and connectors on the main power.

[pinkpanda3310]

In brackets it says 'disregard if using pheonix hv escs'. Is that what you have Jahay? or is it a mamba xl?

[_paralyzed_]

Do not disconnect the red wire.