Help Please Castle - My Ice HV ESC is behaving weird - RC-Monster Forums

Jahay · 06:14 AM

Hi Castle!

Hope you are all well!

I have just got my truck running and my ESC (ICE HV 160) is now behaving weird...

I was doing a speed run last night and the truck was pulling harder than ever on 6s, it has been running nicely for the past few days with the ESC performing flawlessly on 6s and 9s and not going above 113 degrees F or 45degreesC

As i was running it on 9s yesterday on some 5000mah nanotech lipos 45/90c, i was building the speed of the truck up to around 50mph and then suddenly LOSS of power...

I ran to the truck thinking something would go BOOM, but everything was fine... The ESC was normal temps, motor was normal temps around 120F...

I unplugged the lipos, and plugged them back in... But nothing. So i tried plugging 6s worth of lipos in.

The ESC turned on! started beeping and then after all the beeps had completed, it TURNED OFF?

I then tried it on 3s and the ESC turned on, did the beeps, and then i drove it very slowly around, and it seemed fine... ALL of a sudden, it turned off, and then turned it self back on... did the beeps, and then turned off...

Basically it isnt staying on? Very funny...

I havent had time to had a closer look, but is there anything i should look out for???

THANKS A LOT CASTLE!!!! PLEASE HELP ME GET THIS TRUCK RUNNING AGAIN!

for your reference the ESC has only been used 8 times MAX and not even full runs as my pinions keep on snapping haha

Thanks

x-y · 06.15.2011, 09:41 AM

¿motor? ....... ¿temperatures of the motor?

Jahay · 06.15.2011, 09:48 AM

The motor is a 1520, temperatures were 113F. Not hot at all... It is a fairly brand new motor. i would say no more than 15 packs of lipos run through it

Arct1k · 06.15.2011, 09:56 AM

Isn't it an opto ESC - Are you sure it isnt the BEC or do you still get steering...

Could be as simple as a loose connection on rx cable.

Arct1k · 06.28.2011, 02:30 PM

Quote:

Originally Posted by Arct1k

Could be as simple as a loose connection on rx cable.

I win...

_paralyzed_ · 06.29.2011, 05:21 PM

Quote:

Originally Posted by Arct1k

I win...

+100 internets for Chris!

Jahay · 06.15.2011, 10:01 AM

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 ???

Jahay · 06.15.2011, 10:02 AM

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 · 09:29 PM

Quote:

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 · 11:38 AM

Quote:

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 · 06.20.2011, 07:13 PM

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

_paralyzed_ · 06.22.2011, 05:02 AM

Do not disconnect the red wire.

Jahay · 06.15.2011, 10:12 AM

Thanks for clearing that up brian... i will make sure my connections are still good. But there is no reason why they wouldnt... i havent had any large crashes or anything

bruce750i · 06.15.2011, 05:38 PM

I think the instructions say not to hard mount the ESC. How does the bec feed the HV ICE? Through the RX? Sounds to me like he is losing main HV power. Loose cap maybe? Cold solder joint? Did you wiggle the wires to look for shorts?

Jahay · 06.15.2011, 07:49 PM

Sorry bud... but what do you mean by "hard mount" the esc?

I havent had time to look at the esc this evening...

but i believe the ESC is being powered from the lipos?
The BEC just powers my servo...

The esc wire connects to my Pistix which then connects to the Y harness and then to the RX....??? it has been working absolutely fine for the last few runs, so why would it mis behave now?