One more T-180 problem

[Kenny77]

So I had my JAE out today and ran it on 4s for a few packs in the low 60's, just for fun I threw in a 5s which I've done before and it acted like the lvc was cutting in after a few seconds. I have the lvc off and set it to 5s like normal, repeated the process a few times with same results. I put it back to 4s and ran fine. Thoughts? I'm stumped.

[carlcisneros]

There IS a possibility that your 5S pack has gone to the happy hunting grounds........

I had a 6S pack that did the same thing a while back.

[Kenny77]

I have two and tried them both with the same results. Gens Ace 5s 5300's. Not enough runs on them to be gone, maybe one but not the pair.

[JIM MARCUM]

Double check the settings on the T180 with a program card. Set #1 thru # 3 at choice (1), set Timing #4 at (1) for a D wind, (40 or (50 for Y winds. Be shure to hit the OK button when completed.

Leaving the number of LIPO cells set on (1) Auto Calculate - will assure that the right # of cells is selected & makes swapping out various LIPOs easy. If done manually it can sometimes lead to LVC problems. I goofed up this week at the NAMBA FE Nationals at Legg Lake and tried to run my N-2 Offshore cat - 2S2P - with a replacement T180 from a 4S2P boat - with it still set on 4S. Embarrasing to turn back to the launch in pulsating little bursts of speed. One of the guys reset the programing at the above settings for me, no more problems. JIM

[Kenny77]

That's how it's done, used the card and programmed it a few times. Like I said on 4s it's fine, no lvc or auto detect.

[Rumdog]

Gotta be your packs, then

[Make-a-Wake]

If the LVC is off then its not part of the equation at all. Did you manually set it for 5s or leave it on auto detect?

I had a similar problem when I went from 5s to 6s on a hot setup and it just shut down basically..............It may be an amperage safety cutoff. Did you reduce prop size for 5s? If not you may have been pulling over 180 and it protected itself..............??

[Rumdog]

I never use the auto detect for cells. It's quick enough to swap with the box.

[Kenny77]

Manually set all parameters and switched prop. It did the same thing with both packs and I could repeat what happens after disconnecting them and starting over, full speed for a few seconds then throttle dies off to a crawl, very puzzling. RPM's sound good out of the water but doesn't like the load being put on it. Checked packs on reader each time and nothing out of ordinary. I have another t180 I'm going to throw in and try.

[Rumdog]

Yup. It's your packs.
When u say changed prop, I'm assuming you propped down, right?

[Make-a-Wake]

I'm sure he propped down. If the packs are weak, then it would send it to pre-mature LVC, but its shut off...............i'm lost on this one.

[Kenny77]

Yup. It's your packs.
When u say changed prop, I'm assuming you propped down, right?

Yeah I went down. Done it before without issue, packs have less than 10 cycles on them. Don't use them much it's just for show with a couple passes.

[electric]

I run the t180 in everyone one of my (five) boats from 4s -6s. Here it is in a short summary:
1. LVC OFF (it is completely unreliable and will drive your crazy
2. Set the Voltage count manually 4s is good.
3. Set the timming.
4. Check the batteries.

If it is STILL on/off you have a few things to check out.
1. Electrical (receiver to esc) Might try a different receiver, or different esc with the receiver in your boat.
2. Your done. I have had ESC's do this on/off thing and frankly there is something wrong with the ESC and you will drive yourself CRAZY with it. Replace the ESC and move on for your own sanity.

By the way I LOVE these ESC's. Are they perfect, no, but they are cheap and basicallly do a great job for the most part. I have pulled way up into the 180am range (on throttle up) many times and I have one of them that is about 2 years old and is in P-hydro race boat and has yet to fail me.
Best of luck.

[martin]

I wonder if it would help with the lvc cutting in to early if you didnt use the bec & separate rx pack to power the rx & servo.