T-180 issues...not LVC related

[BlackSnakeRacing]

Hey all, have just finished building my DF Pirate, and to do that i have stolen the ESC from my osprey. I did have a spare T-180, but i think i thermaled it on the last run that i used it for, and it started cogging so i pulled it from the boat. I decided i should try to revive it so i can get both boats back on the water, and found that one leg had pretty much desoldered from the ESC. I've fixed the solder joint up and checked the other legs and they all look fine.

Now when i power up the ESC i dont get any beeps signifying cell count, but the esc will still arm and spin the motor when throttle is applied and will still allow me to change program settings with the program box. I've only tested on 2S, usually i would run this esc on 6S but after having a T-180 catch fire in my hands i am a little sceptical of trying it to see what rev's i can get from the motor.

Would you use this ESC or toss it in the bin? What could possibly be wrong and might i be able to fix it to get the ESC to beep the cell count again?

Cheers
Chris

[Alexgar]

maybe accidentally reset at a lower s count do you have a junk motor to test

[Alexgar]

i have fried an esc and a motor because im a little cheap but i keep old stock to test (ie aq motors)

[MAMBA2200]

well being that the motor makes the beeps i would try what Alexgar said try another motor

[BlackSnakeRacing]

i have tried another motor with the same results, and tried the same motor on a different ESC and i get the beeps, thats whats confusing me. I know it is the ESC i have tested everything numerous times. I thought initially that it was the leg that had the fractured solder joint. I just cant understand how the ESC is malfunctioning (no beeps) but still arms and spins the motor.

[MAMBA2200]

the only other thing i can offer is i had one do that b4 and it was a capacitor issue on the 3 caps on the side replaced those and the beeps came back you can get them at radio shack im sure you knew that but its worth a try and would not cost you more than 5 bucks

[BlackSnakeRacing]

will have a look at the cap bank, thanks for the idea as it already has 3 extra caps on it so maybe one of them is shot. Is there anyway i can test the caps to find out which it may be?

[Hydro111]

Try putting the LVC to 2.8v, i notice mine made no beeps when arming after i change the LVC to none


Chris.

[Alexgar]

Good point chris maybe it thinks its hooked to nimh cells

[BlackSnakeRacing]

Nah not thinking its running nimh's have tried changing all of the lvc settings, timing, cell count options, only thing i havnt tried is adding reverse. The motor spools up fine on 2S and 3S, but on 6S the motor stutters at high rpms like the timing is out or something like that

[drwayne]

the T180 has multiple fets per phase ( the three output wires)
Due to the lead that melted off, there is probably a fet that is damaged/dead.
The primary fets on each array are the ones who fire to make the beeps.

On 6S when there is more draw, the cogging is likely related to a variant feed from the 3 phases.

Id bin the unit and save your batteries/motor from risk.

DocW.

[Alexgar]

i posted before about that it cost me a ul1 motor on the stuttering and stunk up my house and when i sent the esc back to mgm copro they told me it had multiple fets out and would sell me one at a discount because the repair would excede the price of a new one. What do you do? Gotta love rc boats
cost me a ul1 motoer and one of these bad boys

[drwayne]

i posted before about that it cost me a ul1 motor on the stuttering and stunk up my house and when i sent the esc back to mgm copro they told me it had multiple fets out and would sell me one at a discount because the repair would excede the price of a new one. What do you do? Gotta love rc boats
cost me a ul1 motoer and one of these bad boys

If they're bad, why buy them

[Alexgar]

ebay purchases bought seperately as is one for 31 and one for 40 the 31$ worked great until i got it wet the 40$ never worked and smoke the ul1 motor after it programmed with the usb interface they are great and kind of expensive so i took the risk, the one that got wet was repaired for 47$+31 i paid for it a great deal considering they are close to 200$ and have data logging by the way they were both 160 amp 2-6s controllers, besy ive come across cars

[BlackSnakeRacing]

Thanks for the info Doc, i thought it may have been something terminal, but was hoping that i may have been able to salvage it as i am on a bit of a budget this time of year and already have a list of things that i need to get. Might have to reshuffle the list a little and slot a new ESC in there somewhere. At least this one didnt catch fire on me like the last one did when it died